Selection API: anchorNode, anchorOffset, focusNode, focusOffset, isCollapsed, and type should be ba…

third_party/WebKit/LayoutTests/external/wpt/selection/extend-20-expected.txt

 CONSOLE ERROR: line 944: The given range isn't in document.
 CONSOLE ERROR: line 944: The given range isn't in document.
 CONSOLE ERROR: line 944: The given range isn't in document.
 CONSOLE ERROR: line 944: The given range isn't in document.
 CONSOLE ERROR: line 944: The given range isn't in document.
 CONSOLE ERROR: line 944: The given range isn't in document.
 CONSOLE ERROR: line 944: The given range isn't in document.
 CONSOLE ERROR: line 944: The given range isn't in document.
 CONSOLE ERROR: line 944: The given range isn't in document.
 CONSOLE ERROR: line 944: The given range isn't in document.
@@ skipping 510 matching lines @@
 FAIL extend() with range 22 [foreignDoc.body, 0, foreignDoc.body, 0] and point 79 [detachedXmlComment, 2] assert_equals: Sanity check: rangeCount must be correct expected 1 but got 0
 FAIL extend() with range 22 [foreignDoc.body, 0, foreignDoc.body, 0] and point 80 [docfrag, 0] assert_equals: Sanity check: rangeCount must be correct expected 1 but got 0
 FAIL extend() with range 22 [foreignDoc.body, 0, foreignDoc.body, 0] and point 81 [foreignDocfrag, 0] assert_equals: Sanity check: rangeCount must be correct expected 1 but got 0
 FAIL extend() with range 22 [foreignDoc.body, 0, foreignDoc.body, 0] and point 82 [xmlDocfrag, 0] assert_equals: Sanity check: rangeCount must be correct expected 1 but got 0
 FAIL extend() with range 22 [foreignDoc.body, 0, foreignDoc.body, 0] and point 83 [doctype, 0] assert_equals: Sanity check: rangeCount must be correct expected 1 but got 0
 FAIL extend() with range 22 [foreignDoc.body, 0, foreignDoc.body, 0] and point 84 [doctype, -17] assert_equals: Sanity check: rangeCount must be correct expected 1 but got 0
 FAIL extend() with range 22 [foreignDoc.body, 0, foreignDoc.body, 0] and point 85 [doctype, 1] assert_equals: Sanity check: rangeCount must be correct expected 1 but got 0
 FAIL extend() with range 22 [foreignDoc.body, 0, foreignDoc.body, 0] and point 86 [foreignDoctype, 0] assert_equals: Sanity check: rangeCount must be correct expected 1 but got 0
 FAIL extend() with range 22 [foreignDoc.body, 0, foreignDoc.body, 0] and point 87 [xmlDoctype, 0] assert_equals: Sanity check: rangeCount must be correct expected 1 but got 0
 PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 0 [paras[0].firstChild, -1] 
-PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 1 [paras[0].firstChild, 0] 
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 2 [paras[0].firstChild, 1] assert_equals: focusOffset must be the offset passed to extend() expected 1 but got 2
-PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 3 [paras[0].firstChild, 2] 
-PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 4 [paras[0].firstChild, 8] 
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 5 [paras[0].firstChild, 9] assert_equals: focusOffset must be the offset passed to extend() expected 9 but got 10
-PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 6 [paras[0].firstChild, 10] 
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 1 [paras[0].firstChild, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 2 [paras[0].firstChild, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 3 [paras[0].firstChild, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 4 [paras[0].firstChild, 8] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 5 [paras[0].firstChild, 9] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 6 [paras[0].firstChild, 10] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 7 [paras[0].firstChild, 65535] 
 PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 8 [paras[1].firstChild, -1] 
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 9 [paras[1].firstChild, 0] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 10 [paras[1].firstChild, 1] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 11 [paras[1].firstChild, 2] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 12 [paras[1].firstChild, 8] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 13 [paras[1].firstChild, 9] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 9 [paras[1].firstChild, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 10 [paras[1].firstChild, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 11 [paras[1].firstChild, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 12 [paras[1].firstChild, 8] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 13 [paras[1].firstChild, 9] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 14 [paras[1].firstChild, 10] 
 PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 15 [paras[1].firstChild, 65535] 
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 16 [detachedPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 17 [detachedPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 18 [detachedPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 16 [detachedPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 17 [detachedPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 18 [detachedPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 19 [detachedPara1.firstChild, 9] 
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 20 [foreignPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 21 [foreignPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 22 [foreignPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 20 [foreignPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 21 [foreignPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 22 [foreignPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 23 [foreignPara1.firstChild, 9] 
 PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 24 [document.documentElement, -1] 
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 25 [document.documentElement, 0] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 26 [document.documentElement, 1] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 27 [document.documentElement, 2] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Qrstuvwx"
-PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 28 [document.documentElement, 7] 
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 29 [document.head, 1] assert_equals: focusNode must be the node passed to extend() expected Element node <head><title>Selection extend() tests</title>
-<meta chars... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 30 [document.body, 3] assert_equals: focusNode must be the node passed to extend() expected Element node <body><div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id... but got Text node "Qrstuvwx"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 31 [foreignDoc.documentElement, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 32 [foreignDoc.documentElement, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 33 [foreignDoc.head, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <head><title></title></head> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 34 [foreignDoc.body, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <body><p>Efghijkl</p><p>Mnopqrst</p>I admit that I harbor... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 35 [paras[0], 0] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 25 [document.documentElement, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 36 [paras[0], 1] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 26 [document.documentElement, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 27 [document.documentElement, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
+PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 28 [document.documentElement, 7] 
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 29 [document.head, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 30 [document.body, 3] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 31 [foreignDoc.documentElement, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 32 [foreignDoc.documentElement, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 33 [foreignDoc.head, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <head><title></title></head> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 34 [foreignDoc.body, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <body><p>Efghijkl</p><p>Mnopqrst</p>I admit that I harbor... but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 35 [paras[0], 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 36 [paras[0], 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 37 [paras[0], 2] 
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 38 [paras[1], 0] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="b" style="display:none">Ijklmnop
-</p> but got Element node <p id="c">Qrstuvwx</p>
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 39 [paras[1], 1] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="b" style="display:none">Ijklmnop
-</p> but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 38 [paras[1], 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 39 [paras[1], 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 40 [paras[1], 2] 
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 41 [detachedPara1, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 41 [detachedPara1, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 42 [detachedPara1, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 43 [testDiv, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 42 [detachedPara1, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 44 [testDiv, 3] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 43 [testDiv, 0] assert_equals: focusNode must be the node passed to extend() expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 45 [document, -1] 
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 46 [document, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 44 [testDiv, 3] assert_equals: focusNode must be the node passed to extend() expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id="b" s... but got Text node "Qrstuvwx"
-PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 45 [document, -1] 
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 46 [document, 0] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 47 [document, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 47 [document, 1] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 48 [document, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 48 [document, 2] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Qrstuvwx"
 PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 49 [document, 3] 
 PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 50 [comment, -1] 
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 51 [comment, 0] assert_equals: focusNode must be the node passed to extend() expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 52 [comment, 4] assert_equals: focusNode must be the node passed to extend() expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 51 [comment, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 52 [comment, 4] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 53 [comment, 96] 
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 54 [foreignDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 55 [foreignDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 56 [foreignComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--"Commenter" and "commentator" mean different things.  I'v...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 57 [foreignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 58 [foreignTextNode, 36] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 54 [foreignDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 55 [foreignDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 56 [foreignComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--"Commenter" and "commentator" mean different things.  I'v...--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 57 [foreignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 58 [foreignTextNode, 36] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 59 [xmlDoc, -1] 
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 60 [xmlDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 61 [xmlDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 60 [xmlDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 61 [xmlDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 62 [xmlDoc, 5] 
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 63 [xmlComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 64 [xmlComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 65 [processingInstruction, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 66 [processingInstruction, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 67 [processingInstruction, 9] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 68 [detachedTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 69 [detachedTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 70 [detachedForeignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 71 [detachedForeignTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 72 [detachedXmlTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 73 [detachedXmlTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 74 [detachedProcessingInstruction, 12] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "whippoorwill" and data "chirp chirp chirp" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 75 [detachedComment, 3] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 76 [detachedComment, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 77 [detachedForeignComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 78 [detachedForeignComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 79 [detachedXmlComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--בן חיים אליעזר--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 80 [docfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 81 [foreignDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
-FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 82 [xmlDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 63 [xmlComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 64 [xmlComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 65 [processingInstruction, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 66 [processingInstruction, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 67 [processingInstruction, 9] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 68 [detachedTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 69 [detachedTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 70 [detachedForeignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 71 [detachedForeignTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 72 [detachedXmlTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 73 [detachedXmlTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 74 [detachedProcessingInstruction, 12] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "whippoorwill" and data "chirp chirp chirp" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 75 [detachedComment, 3] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 76 [detachedComment, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 77 [detachedForeignComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 78 [detachedForeignComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 79 [detachedXmlComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--בן חיים אליעזר--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 80 [docfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 81 [foreignDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
+FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 82 [xmlDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 83 [doctype, 0] 
 FAIL extend() with range 23 [paras[0], 0, paras[0], 0] and point 84 [doctype, -17] assert_throws: extend() to a doctype must throw InvalidNodeTypeError function "function () {
             selection.extend(node, offset);
         }" threw object "IndexSizeError: Failed to execute 'extend' on 'Selection': -17 is not a valid offset." that is not a DOMException INVALID_NODE_TYPE_ERR: property "code" is equal to 1, expected 24
 PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 85 [doctype, 1] 
 PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 86 [foreignDoctype, 0] 
 PASS extend() with range 23 [paras[0], 0, paras[0], 0] and point 87 [xmlDoctype, 0] 
 PASS extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 0 [paras[0].firstChild, -1] 
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 0 [paras[0].firstChild, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 1 [paras[0].firstChild, 0] 
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 1 [paras[0].firstChild, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 1 [paras[0].firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 2 [paras[0].firstChild, 1] assert_equals: focusOffset must be the offset passed to extend() expected 1 but got 2
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 2 [paras[0].firstChild, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 2 [paras[0].firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 3 [paras[0].firstChild, 2] 
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 3 [paras[0].firstChild, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 3 [paras[0].firstChild, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 4 [paras[0].firstChild, 8] 
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 4 [paras[0].firstChild, 8] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 4 [paras[0].firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 5 [paras[0].firstChild, 9] assert_equals: focusOffset must be the offset passed to extend() expected 9 but got 10
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 5 [paras[0].firstChild, 9] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 5 [paras[0].firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 6 [paras[0].firstChild, 10] 
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 6 [paras[0].firstChild, 10] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 6 [paras[0].firstChild, 10] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 7 [paras[0].firstChild, 65535] 
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 7 [paras[0].firstChild, 65535] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 8 [paras[1].firstChild, -1] 
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 8 [paras[1].firstChild, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 9 [paras[1].firstChild, 0] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 9 [paras[1].firstChild, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 9 [paras[1].firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 10 [paras[1].firstChild, 1] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 10 [paras[1].firstChild, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 10 [paras[1].firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 11 [paras[1].firstChild, 2] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 11 [paras[1].firstChild, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 11 [paras[1].firstChild, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 12 [paras[1].firstChild, 8] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 12 [paras[1].firstChild, 8] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 12 [paras[1].firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 13 [paras[1].firstChild, 9] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 13 [paras[1].firstChild, 9] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 13 [paras[1].firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 14 [paras[1].firstChild, 10] 
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 14 [paras[1].firstChild, 10] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 15 [paras[1].firstChild, 65535] 
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 15 [paras[1].firstChild, 65535] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 16 [detachedPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 16 [detachedPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 16 [detachedPara1.firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 17 [detachedPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 17 [detachedPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 17 [detachedPara1.firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 18 [detachedPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 18 [detachedPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 18 [detachedPara1.firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 19 [detachedPara1.firstChild, 9] 
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 19 [detachedPara1.firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 20 [foreignPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 20 [foreignPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 20 [foreignPara1.firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 21 [foreignPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 21 [foreignPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 21 [foreignPara1.firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 22 [foreignPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 22 [foreignPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 22 [foreignPara1.firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 23 [foreignPara1.firstChild, 9] 
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 23 [foreignPara1.firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 24 [document.documentElement, -1] 
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 24 [document.documentElement, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 25 [document.documentElement, 0] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 25 [document.documentElement, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 25 [document.documentElement, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 26 [document.documentElement, 1] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 26 [document.documentElement, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 26 [document.documentElement, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 27 [document.documentElement, 2] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 27 [document.documentElement, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 27 [document.documentElement, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 28 [document.documentElement, 7] 
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 28 [document.documentElement, 7] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 29 [document.head, 1] assert_equals: focusNode must be the node passed to extend() expected Element node <head><title>Selection extend() tests</title>
-<meta chars... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 29 [document.head, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 29 [document.head, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 30 [document.body, 3] assert_equals: focusNode must be the node passed to extend() expected Element node <body><div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 30 [document.body, 3] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 30 [document.body, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 31 [foreignDoc.documentElement, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 31 [foreignDoc.documentElement, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 31 [foreignDoc.documentElement, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 32 [foreignDoc.documentElement, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 32 [foreignDoc.documentElement, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 32 [foreignDoc.documentElement, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 33 [foreignDoc.head, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <head><title></title></head> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 33 [foreignDoc.head, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <head><title></title></head> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 33 [foreignDoc.head, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 34 [foreignDoc.body, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <body><p>Efghijkl</p><p>Mnopqrst</p>I admit that I harbor... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 34 [foreignDoc.body, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <body><p>Efghijkl</p><p>Mnopqrst</p>I admit that I harbor... but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 34 [foreignDoc.body, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 35 [paras[0], 0] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 35 [paras[0], 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 35 [paras[0], 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 36 [paras[0], 1] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 36 [paras[0], 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 36 [paras[0], 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 37 [paras[0], 2] 
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 37 [paras[0], 2] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 38 [paras[1], 0] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="b" style="display:none">Ijklmnop
-</p> but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 38 [paras[1], 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 38 [paras[1], 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 39 [paras[1], 1] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="b" style="display:none">Ijklmnop
-</p> but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 39 [paras[1], 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 39 [paras[1], 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 40 [paras[1], 2] 
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 40 [paras[1], 2] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 41 [detachedPara1, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 41 [detachedPara1, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 41 [detachedPara1, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 42 [detachedPara1, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 42 [detachedPara1, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 42 [detachedPara1, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 43 [testDiv, 0] assert_equals: focusNode must be the node passed to extend() expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 43 [testDiv, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 43 [testDiv, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 44 [testDiv, 3] assert_equals: focusNode must be the node passed to extend() expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id="b" s... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 44 [testDiv, 3] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 44 [testDiv, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 45 [document, -1] 
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 45 [document, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 46 [document, 0] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 46 [document, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 46 [document, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 47 [document, 1] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 47 [document, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 47 [document, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 48 [document, 2] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 48 [document, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 48 [document, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 49 [document, 3] 
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 49 [document, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 50 [comment, -1] 
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 50 [comment, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 51 [comment, 0] assert_equals: focusNode must be the node passed to extend() expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 51 [comment, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 51 [comment, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 52 [comment, 4] assert_equals: focusNode must be the node passed to extend() expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 52 [comment, 4] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 52 [comment, 4] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 53 [comment, 96] 
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 53 [comment, 96] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 54 [foreignDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 54 [foreignDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 54 [foreignDoc, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 55 [foreignDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 55 [foreignDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 55 [foreignDoc, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 56 [foreignComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--"Commenter" and "commentator" mean different things.  I'v...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 56 [foreignComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--"Commenter" and "commentator" mean different things.  I'v...--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 56 [foreignComment, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 57 [foreignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 57 [foreignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 57 [foreignTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 58 [foreignTextNode, 36] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 58 [foreignTextNode, 36] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 58 [foreignTextNode, 36] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 59 [xmlDoc, -1] 
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 59 [xmlDoc, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 60 [xmlDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 60 [xmlDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 60 [xmlDoc, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 61 [xmlDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 61 [xmlDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 61 [xmlDoc, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 62 [xmlDoc, 5] 
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 62 [xmlDoc, 5] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 63 [xmlComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 63 [xmlComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 63 [xmlComment, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 64 [xmlComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 64 [xmlComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 64 [xmlComment, 4] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 65 [processingInstruction, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 65 [processingInstruction, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 65 [processingInstruction, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 66 [processingInstruction, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 66 [processingInstruction, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 66 [processingInstruction, 5] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 67 [processingInstruction, 9] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 67 [processingInstruction, 9] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 67 [processingInstruction, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 68 [detachedTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 68 [detachedTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 68 [detachedTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 69 [detachedTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 69 [detachedTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 69 [detachedTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 70 [detachedForeignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 70 [detachedForeignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 70 [detachedForeignTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 71 [detachedForeignTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 71 [detachedForeignTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 71 [detachedForeignTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 72 [detachedXmlTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 72 [detachedXmlTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 72 [detachedXmlTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 73 [detachedXmlTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 73 [detachedXmlTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 73 [detachedXmlTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 74 [detachedProcessingInstruction, 12] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "whippoorwill" and data "chirp chirp chirp" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 74 [detachedProcessingInstruction, 12] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "whippoorwill" and data "chirp chirp chirp" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 74 [detachedProcessingInstruction, 12] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 75 [detachedComment, 3] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 75 [detachedComment, 3] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 75 [detachedComment, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 76 [detachedComment, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 76 [detachedComment, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 76 [detachedComment, 5] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 77 [detachedForeignComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 77 [detachedForeignComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 77 [detachedForeignComment, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 78 [detachedForeignComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 78 [detachedForeignComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 78 [detachedForeignComment, 4] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 79 [detachedXmlComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--בן חיים אליעזר--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 79 [detachedXmlComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--בן חיים אליעזר--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 79 [detachedXmlComment, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 80 [docfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 80 [docfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 80 [docfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 81 [foreignDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 81 [foreignDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 81 [foreignDocfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 82 [xmlDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 82 [xmlDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 82 [xmlDocfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 83 [doctype, 0] 
 FAIL extend() backwards with range 24 [paras[0], 0, paras[0], 1] and point 83 [doctype, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() forwards with range 24 [paras[0], 0, paras[0], 1] and point 84 [doctype, -17] assert_throws: extend() to a doctype must throw InvalidNodeTypeError function "function () {
             selection.extend(node, offset);
         }" threw object "IndexSizeError: Failed to execute 'extend' on 'Selection': -17 is not a valid offset." that is not a DOMException INVALID_NODE_TYPE_ERR: property "code" is equal to 1, expected 24
@@ skipping 929 matching lines @@
 FAIL extend() backwards with range 28 [paras[0].firstChild, 0, paras[1].firstChild, 8] and point 85 [doctype, 1] assert_equals: Sanity check: endContainer must be correct expected Text node "Ijklmnop
 " but got Element node <p id="c">Qrstuvwx</p>
 PASS extend() forwards with range 28 [paras[0].firstChild, 0, paras[1].firstChild, 8] and point 86 [foreignDoctype, 0] 
 FAIL extend() backwards with range 28 [paras[0].firstChild, 0, paras[1].firstChild, 8] and point 86 [foreignDoctype, 0] assert_equals: Sanity check: endContainer must be correct expected Text node "Ijklmnop
 " but got Element node <p id="c">Qrstuvwx</p>
 PASS extend() forwards with range 28 [paras[0].firstChild, 0, paras[1].firstChild, 8] and point 87 [xmlDoctype, 0] 
 FAIL extend() backwards with range 28 [paras[0].firstChild, 0, paras[1].firstChild, 8] and point 87 [xmlDoctype, 0] assert_equals: Sanity check: endContainer must be correct expected Text node "Ijklmnop
 " but got Element node <p id="c">Qrstuvwx</p>
 PASS extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 0 [paras[0].firstChild, -1] 
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 0 [paras[0].firstChild, -1] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-PASS extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 1 [paras[0].firstChild, 0] 
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 1 [paras[0].firstChild, 0] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 1 [paras[0].firstChild, 0] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 2 [paras[0].firstChild, 1] assert_equals: focusOffset must be the offset passed to extend() expected 1 but got 2
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 2 [paras[0].firstChild, 1] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 2 [paras[0].firstChild, 1] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-PASS extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 3 [paras[0].firstChild, 2] 
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 3 [paras[0].firstChild, 2] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 3 [paras[0].firstChild, 2] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-PASS extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 4 [paras[0].firstChild, 8] 
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 4 [paras[0].firstChild, 8] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 4 [paras[0].firstChild, 8] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 5 [paras[0].firstChild, 9] assert_equals: focusOffset must be the offset passed to extend() expected 9 but got 10
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 5 [paras[0].firstChild, 9] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 5 [paras[0].firstChild, 9] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-PASS extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 6 [paras[0].firstChild, 10] 
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 6 [paras[0].firstChild, 10] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 6 [paras[0].firstChild, 10] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 PASS extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 7 [paras[0].firstChild, 65535] 
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 7 [paras[0].firstChild, 65535] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 PASS extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 8 [paras[1].firstChild, -1] 
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 8 [paras[1].firstChild, -1] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 9 [paras[1].firstChild, 0] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 9 [paras[1].firstChild, 0] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 9 [paras[1].firstChild, 0] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 10 [paras[1].firstChild, 1] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 10 [paras[1].firstChild, 1] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 10 [paras[1].firstChild, 1] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 11 [paras[1].firstChild, 2] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 11 [paras[1].firstChild, 2] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 11 [paras[1].firstChild, 2] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 12 [paras[1].firstChild, 8] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 12 [paras[1].firstChild, 8] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 12 [paras[1].firstChild, 8] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 13 [paras[1].firstChild, 9] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 13 [paras[1].firstChild, 9] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 13 [paras[1].firstChild, 9] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 PASS extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 14 [paras[1].firstChild, 10] 
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 14 [paras[1].firstChild, 10] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 PASS extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 15 [paras[1].firstChild, 65535] 
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 15 [paras[1].firstChild, 65535] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 16 [detachedPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 16 [detachedPara1.firstChild, 0] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 17 [detachedPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 17 [detachedPara1.firstChild, 1] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 18 [detachedPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 18 [detachedPara1.firstChild, 8] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 PASS extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 19 [detachedPara1.firstChild, 9] 
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 19 [detachedPara1.firstChild, 9] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 20 [foreignPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 20 [foreignPara1.firstChild, 0] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 21 [foreignPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 21 [foreignPara1.firstChild, 1] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 22 [foreignPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 22 [foreignPara1.firstChild, 8] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 PASS extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 23 [foreignPara1.firstChild, 9] 
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 23 [foreignPara1.firstChild, 9] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 PASS extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 24 [document.documentElement, -1] 
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 24 [document.documentElement, -1] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 25 [document.documentElement, 0] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 25 [document.documentElement, 0] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 25 [document.documentElement, 0] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 26 [document.documentElement, 1] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 26 [document.documentElement, 1] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 26 [document.documentElement, 1] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 27 [document.documentElement, 2] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 27 [document.documentElement, 2] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 27 [document.documentElement, 2] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 PASS extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 28 [document.documentElement, 7] 
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 28 [document.documentElement, 7] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 29 [document.head, 1] assert_equals: focusNode must be the node passed to extend() expected Element node <head><title>Selection extend() tests</title>
-<meta chars... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 29 [document.head, 1] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 29 [document.head, 1] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 30 [document.body, 3] assert_equals: focusNode must be the node passed to extend() expected Element node <body><div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 30 [document.body, 3] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 30 [document.body, 3] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 31 [foreignDoc.documentElement, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 31 [foreignDoc.documentElement, 0] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 32 [foreignDoc.documentElement, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 32 [foreignDoc.documentElement, 1] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 33 [foreignDoc.head, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <head><title></title></head> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 33 [foreignDoc.head, 0] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 34 [foreignDoc.body, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <body><p>Efghijkl</p><p>Mnopqrst</p>I admit that I harbor... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 34 [foreignDoc.body, 1] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 35 [paras[0], 0] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 35 [paras[0], 0] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 35 [paras[0], 0] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 36 [paras[0], 1] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 36 [paras[0], 1] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 36 [paras[0], 1] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 PASS extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 37 [paras[0], 2] 
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 37 [paras[0], 2] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 38 [paras[1], 0] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="b" style="display:none">Ijklmnop
-</p> but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 38 [paras[1], 0] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 38 [paras[1], 0] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 39 [paras[1], 1] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="b" style="display:none">Ijklmnop
-</p> but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 39 [paras[1], 1] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 39 [paras[1], 1] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 PASS extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 40 [paras[1], 2] 
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 40 [paras[1], 2] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 41 [detachedPara1, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 41 [detachedPara1, 0] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 42 [detachedPara1, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 42 [detachedPara1, 1] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 43 [testDiv, 0] assert_equals: focusNode must be the node passed to extend() expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 43 [testDiv, 0] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 43 [testDiv, 0] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 44 [testDiv, 3] assert_equals: focusNode must be the node passed to extend() expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id="b" s... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 44 [testDiv, 3] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 44 [testDiv, 3] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 PASS extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 45 [document, -1] 
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 45 [document, -1] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 46 [document, 0] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 46 [document, 0] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 46 [document, 0] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 47 [document, 1] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 47 [document, 1] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 47 [document, 1] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 48 [document, 2] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 48 [document, 2] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 48 [document, 2] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 PASS extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 49 [document, 3] 
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 49 [document, 3] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 PASS extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 50 [comment, -1] 
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 50 [comment, -1] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 51 [comment, 0] assert_equals: focusNode must be the node passed to extend() expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 51 [comment, 0] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 51 [comment, 0] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
-FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 52 [comment, 4] assert_equals: focusNode must be the node passed to extend() expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 52 [comment, 4] assert_equals: anchorOffset must not change if the node passed to extend() has the same root as the original range expected 3 but got 4
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 52 [comment, 4] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 PASS extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 53 [comment, 96] 
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 53 [comment, 96] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 54 [foreignDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 54 [foreignDoc, 0] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 55 [foreignDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 55 [foreignDoc, 1] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 FAIL extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 56 [foreignComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--"Commenter" and "commentator" mean different things.  I'v...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
@@ skipping 84 matching lines @@
 PASS extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 85 [doctype, 1] 
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 85 [doctype, 1] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 PASS extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 86 [foreignDoctype, 0] 
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 86 [foreignDoctype, 0] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 PASS extend() forwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 87 [xmlDoctype, 0] 
 FAIL extend() backwards with range 29 [paras[0].firstChild, 3, paras[3], 1] and point 87 [xmlDoctype, 0] assert_equals: Sanity check: startOffset must be correct expected 3 but got 4
 PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 0 [paras[0].firstChild, -1] 
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 0 [paras[0].firstChild, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 1 [paras[0].firstChild, 0] 
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 1 [paras[0].firstChild, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 1 [paras[0].firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 2 [paras[0].firstChild, 1] assert_equals: focusOffset must be the offset passed to extend() expected 1 but got 2
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 2 [paras[0].firstChild, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 2 [paras[0].firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 3 [paras[0].firstChild, 2] 
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 3 [paras[0].firstChild, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 3 [paras[0].firstChild, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 4 [paras[0].firstChild, 8] 
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 4 [paras[0].firstChild, 8] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 4 [paras[0].firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 5 [paras[0].firstChild, 9] assert_equals: focusOffset must be the offset passed to extend() expected 9 but got 10
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 5 [paras[0].firstChild, 9] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 5 [paras[0].firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 6 [paras[0].firstChild, 10] 
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 6 [paras[0].firstChild, 10] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 6 [paras[0].firstChild, 10] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 7 [paras[0].firstChild, 65535] 
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 7 [paras[0].firstChild, 65535] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 8 [paras[1].firstChild, -1] 
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 8 [paras[1].firstChild, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 9 [paras[1].firstChild, 0] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 9 [paras[1].firstChild, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 9 [paras[1].firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 10 [paras[1].firstChild, 1] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 10 [paras[1].firstChild, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 10 [paras[1].firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 11 [paras[1].firstChild, 2] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 11 [paras[1].firstChild, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 11 [paras[1].firstChild, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 12 [paras[1].firstChild, 8] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 12 [paras[1].firstChild, 8] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 12 [paras[1].firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 13 [paras[1].firstChild, 9] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 13 [paras[1].firstChild, 9] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 13 [paras[1].firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 14 [paras[1].firstChild, 10] 
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 14 [paras[1].firstChild, 10] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 15 [paras[1].firstChild, 65535] 
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 15 [paras[1].firstChild, 65535] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 16 [detachedPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 16 [detachedPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 16 [detachedPara1.firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 17 [detachedPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 17 [detachedPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 17 [detachedPara1.firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 18 [detachedPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 18 [detachedPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 18 [detachedPara1.firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 19 [detachedPara1.firstChild, 9] 
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 19 [detachedPara1.firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 20 [foreignPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 20 [foreignPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 20 [foreignPara1.firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 21 [foreignPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 21 [foreignPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 21 [foreignPara1.firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 22 [foreignPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 22 [foreignPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 22 [foreignPara1.firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 23 [foreignPara1.firstChild, 9] 
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 23 [foreignPara1.firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 24 [document.documentElement, -1] 
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 24 [document.documentElement, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 25 [document.documentElement, 0] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 25 [document.documentElement, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 25 [document.documentElement, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 26 [document.documentElement, 1] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 26 [document.documentElement, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 26 [document.documentElement, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 27 [document.documentElement, 2] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 27 [document.documentElement, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 27 [document.documentElement, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 28 [document.documentElement, 7] 
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 28 [document.documentElement, 7] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 29 [document.head, 1] assert_equals: focusNode must be the node passed to extend() expected Element node <head><title>Selection extend() tests</title>
-<meta chars... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 29 [document.head, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 29 [document.head, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 30 [document.body, 3] assert_equals: focusNode must be the node passed to extend() expected Element node <body><div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 30 [document.body, 3] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 30 [document.body, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 31 [foreignDoc.documentElement, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 31 [foreignDoc.documentElement, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 31 [foreignDoc.documentElement, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 32 [foreignDoc.documentElement, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 32 [foreignDoc.documentElement, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 32 [foreignDoc.documentElement, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 33 [foreignDoc.head, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <head><title></title></head> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 33 [foreignDoc.head, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <head><title></title></head> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 33 [foreignDoc.head, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 34 [foreignDoc.body, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <body><p>Efghijkl</p><p>Mnopqrst</p>I admit that I harbor... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 34 [foreignDoc.body, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <body><p>Efghijkl</p><p>Mnopqrst</p>I admit that I harbor... but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 34 [foreignDoc.body, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 35 [paras[0], 0] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 35 [paras[0], 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 35 [paras[0], 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 36 [paras[0], 1] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 36 [paras[0], 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 36 [paras[0], 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 37 [paras[0], 2] 
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 37 [paras[0], 2] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 38 [paras[1], 0] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="b" style="display:none">Ijklmnop
-</p> but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 38 [paras[1], 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 38 [paras[1], 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 39 [paras[1], 1] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="b" style="display:none">Ijklmnop
-</p> but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 39 [paras[1], 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 39 [paras[1], 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 40 [paras[1], 2] 
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 40 [paras[1], 2] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 41 [detachedPara1, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 41 [detachedPara1, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 41 [detachedPara1, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 42 [detachedPara1, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 42 [detachedPara1, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 42 [detachedPara1, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 43 [testDiv, 0] assert_equals: focusNode must be the node passed to extend() expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 43 [testDiv, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 43 [testDiv, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 44 [testDiv, 3] assert_equals: focusNode must be the node passed to extend() expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id="b" s... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 44 [testDiv, 3] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 44 [testDiv, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 45 [document, -1] 
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 45 [document, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 46 [document, 0] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 46 [document, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 46 [document, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 47 [document, 1] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 47 [document, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 47 [document, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 48 [document, 2] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 48 [document, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 48 [document, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 49 [document, 3] 
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 49 [document, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 50 [comment, -1] 
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 50 [comment, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 51 [comment, 0] assert_equals: focusNode must be the node passed to extend() expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 51 [comment, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 51 [comment, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 52 [comment, 4] assert_equals: focusNode must be the node passed to extend() expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 52 [comment, 4] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 52 [comment, 4] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 53 [comment, 96] 
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 53 [comment, 96] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 54 [foreignDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 54 [foreignDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 54 [foreignDoc, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 55 [foreignDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 55 [foreignDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 55 [foreignDoc, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 56 [foreignComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--"Commenter" and "commentator" mean different things.  I'v...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 56 [foreignComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--"Commenter" and "commentator" mean different things.  I'v...--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 56 [foreignComment, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 57 [foreignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 57 [foreignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 57 [foreignTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 58 [foreignTextNode, 36] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 58 [foreignTextNode, 36] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 58 [foreignTextNode, 36] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 59 [xmlDoc, -1] 
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 59 [xmlDoc, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 60 [xmlDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 60 [xmlDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 60 [xmlDoc, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 61 [xmlDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 61 [xmlDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 61 [xmlDoc, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 62 [xmlDoc, 5] 
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 62 [xmlDoc, 5] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 63 [xmlComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 63 [xmlComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 63 [xmlComment, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 64 [xmlComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 64 [xmlComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 64 [xmlComment, 4] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 65 [processingInstruction, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 65 [processingInstruction, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 65 [processingInstruction, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 66 [processingInstruction, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 66 [processingInstruction, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 66 [processingInstruction, 5] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 67 [processingInstruction, 9] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 67 [processingInstruction, 9] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 67 [processingInstruction, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 68 [detachedTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 68 [detachedTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 68 [detachedTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 69 [detachedTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 69 [detachedTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 69 [detachedTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 70 [detachedForeignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 70 [detachedForeignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 70 [detachedForeignTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 71 [detachedForeignTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 71 [detachedForeignTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 71 [detachedForeignTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 72 [detachedXmlTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 72 [detachedXmlTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 72 [detachedXmlTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 73 [detachedXmlTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 73 [detachedXmlTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 73 [detachedXmlTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 74 [detachedProcessingInstruction, 12] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "whippoorwill" and data "chirp chirp chirp" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 74 [detachedProcessingInstruction, 12] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "whippoorwill" and data "chirp chirp chirp" but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 74 [detachedProcessingInstruction, 12] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 75 [detachedComment, 3] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 75 [detachedComment, 3] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 75 [detachedComment, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 76 [detachedComment, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 76 [detachedComment, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 76 [detachedComment, 5] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 77 [detachedForeignComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 77 [detachedForeignComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 77 [detachedForeignComment, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 78 [detachedForeignComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 78 [detachedForeignComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 78 [detachedForeignComment, 4] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 79 [detachedXmlComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--בן חיים אליעזר--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 79 [detachedXmlComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--בן חיים אליעזר--> but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 79 [detachedXmlComment, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 80 [docfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 80 [docfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 80 [docfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 81 [foreignDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 81 [foreignDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 81 [foreignDocfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 82 [xmlDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 82 [xmlDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p>
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 82 [xmlDocfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 83 [doctype, 0] 
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 83 [doctype, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 84 [doctype, -17] assert_throws: extend() to a doctype must throw InvalidNodeTypeError function "function () {
             selection.extend(node, offset);
         }" threw object "IndexSizeError: Failed to execute 'extend' on 'Selection': -17 is not a valid offset." that is not a DOMException INVALID_NODE_TYPE_ERR: property "code" is equal to 1, expected 24
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 84 [doctype, -17] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 85 [doctype, 1] 
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 85 [doctype, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 86 [foreignDoctype, 0] 
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 86 [foreignDoctype, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 87 [xmlDoctype, 0] 
 FAIL extend() backwards with range 30 [paras[0], 0, paras[0].firstChild, 7] and point 87 [xmlDoctype, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 0 [paras[0].firstChild, -1] 
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 0 [paras[0].firstChild, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 1 [paras[0].firstChild, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 1 [paras[0].firstChild, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 1 [paras[0].firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 2 [paras[0].firstChild, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 2 [paras[0].firstChild, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 2 [paras[0].firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 3 [paras[0].firstChild, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 3 [paras[0].firstChild, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 3 [paras[0].firstChild, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 4 [paras[0].firstChild, 8] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 4 [paras[0].firstChild, 8] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 4 [paras[0].firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 5 [paras[0].firstChild, 9] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 5 [paras[0].firstChild, 9] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 5 [paras[0].firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 6 [paras[0].firstChild, 10] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 6 [paras[0].firstChild, 10] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 6 [paras[0].firstChild, 10] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 7 [paras[0].firstChild, 65535] 
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 7 [paras[0].firstChild, 65535] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 8 [paras[1].firstChild, -1] 
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 8 [paras[1].firstChild, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 9 [paras[1].firstChild, 0] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 9 [paras[1].firstChild, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 9 [paras[1].firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 10 [paras[1].firstChild, 1] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 10 [paras[1].firstChild, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 10 [paras[1].firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 11 [paras[1].firstChild, 2] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 11 [paras[1].firstChild, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 11 [paras[1].firstChild, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 12 [paras[1].firstChild, 8] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 12 [paras[1].firstChild, 8] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 12 [paras[1].firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 13 [paras[1].firstChild, 9] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 13 [paras[1].firstChild, 9] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 13 [paras[1].firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 14 [paras[1].firstChild, 10] 
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 14 [paras[1].firstChild, 10] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 15 [paras[1].firstChild, 65535] 
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 15 [paras[1].firstChild, 65535] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 16 [detachedPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 16 [detachedPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 16 [detachedPara1.firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 17 [detachedPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 17 [detachedPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 17 [detachedPara1.firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 18 [detachedPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 18 [detachedPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 18 [detachedPara1.firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 19 [detachedPara1.firstChild, 9] 
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 19 [detachedPara1.firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 20 [foreignPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 20 [foreignPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 20 [foreignPara1.firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 21 [foreignPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 21 [foreignPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 21 [foreignPara1.firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 22 [foreignPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 22 [foreignPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 22 [foreignPara1.firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 23 [foreignPara1.firstChild, 9] 
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 23 [foreignPara1.firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 24 [document.documentElement, -1] 
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 24 [document.documentElement, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 25 [document.documentElement, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 25 [document.documentElement, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 25 [document.documentElement, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 26 [document.documentElement, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 26 [document.documentElement, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 26 [document.documentElement, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 27 [document.documentElement, 2] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 27 [document.documentElement, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 27 [document.documentElement, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 28 [document.documentElement, 7] 
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 28 [document.documentElement, 7] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 29 [document.head, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 29 [document.head, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 29 [document.head, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 30 [document.body, 3] assert_equals: focusNode must be the node passed to extend() expected Element node <body><div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 30 [document.body, 3] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 30 [document.body, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 31 [foreignDoc.documentElement, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 31 [foreignDoc.documentElement, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 31 [foreignDoc.documentElement, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 32 [foreignDoc.documentElement, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 32 [foreignDoc.documentElement, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 32 [foreignDoc.documentElement, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 33 [foreignDoc.head, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <head><title></title></head> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 33 [foreignDoc.head, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <head><title></title></head> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 33 [foreignDoc.head, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 34 [foreignDoc.body, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <body><p>Efghijkl</p><p>Mnopqrst</p>I admit that I harbor... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 34 [foreignDoc.body, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <body><p>Efghijkl</p><p>Mnopqrst</p>I admit that I harbor... but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 34 [foreignDoc.body, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 35 [paras[0], 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 35 [paras[0], 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 35 [paras[0], 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 36 [paras[0], 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 36 [paras[0], 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 36 [paras[0], 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 37 [paras[0], 2] 
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 37 [paras[0], 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 38 [paras[1], 0] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="b" style="display:none">Ijklmnop
-</p> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 38 [paras[1], 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 38 [paras[1], 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 39 [paras[1], 1] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="b" style="display:none">Ijklmnop
-</p> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 39 [paras[1], 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 39 [paras[1], 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 40 [paras[1], 2] 
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 40 [paras[1], 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 41 [detachedPara1, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 41 [detachedPara1, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 41 [detachedPara1, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 42 [detachedPara1, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 42 [detachedPara1, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 42 [detachedPara1, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 43 [testDiv, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 43 [testDiv, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 43 [testDiv, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 44 [testDiv, 3] assert_equals: focusNode must be the node passed to extend() expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 44 [testDiv, 3] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 44 [testDiv, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 45 [document, -1] 
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 45 [document, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 46 [document, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 46 [document, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 46 [document, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 47 [document, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 47 [document, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 47 [document, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 48 [document, 2] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 48 [document, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 48 [document, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 49 [document, 3] 
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 49 [document, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 50 [comment, -1] 
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 50 [comment, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 51 [comment, 0] assert_equals: focusNode must be the node passed to extend() expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 51 [comment, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 51 [comment, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 52 [comment, 4] assert_equals: focusNode must be the node passed to extend() expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 52 [comment, 4] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 52 [comment, 4] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 53 [comment, 96] 
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 53 [comment, 96] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 54 [foreignDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 54 [foreignDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 54 [foreignDoc, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 55 [foreignDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 55 [foreignDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 55 [foreignDoc, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 56 [foreignComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--"Commenter" and "commentator" mean different things.  I'v...--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 56 [foreignComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--"Commenter" and "commentator" mean different things.  I'v...--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 56 [foreignComment, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 57 [foreignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 57 [foreignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 57 [foreignTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 58 [foreignTextNode, 36] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 58 [foreignTextNode, 36] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 58 [foreignTextNode, 36] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 59 [xmlDoc, -1] 
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 59 [xmlDoc, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 60 [xmlDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 60 [xmlDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 60 [xmlDoc, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 61 [xmlDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 61 [xmlDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 61 [xmlDoc, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 62 [xmlDoc, 5] 
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 62 [xmlDoc, 5] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 63 [xmlComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 63 [xmlComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 63 [xmlComment, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 64 [xmlComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 64 [xmlComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 64 [xmlComment, 4] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 65 [processingInstruction, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 65 [processingInstruction, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 65 [processingInstruction, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 66 [processingInstruction, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 66 [processingInstruction, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 66 [processingInstruction, 5] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 67 [processingInstruction, 9] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 67 [processingInstruction, 9] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 67 [processingInstruction, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 68 [detachedTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 68 [detachedTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 68 [detachedTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 69 [detachedTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 69 [detachedTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 69 [detachedTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 70 [detachedForeignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 70 [detachedForeignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 70 [detachedForeignTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 71 [detachedForeignTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 71 [detachedForeignTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 71 [detachedForeignTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 72 [detachedXmlTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 72 [detachedXmlTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 72 [detachedXmlTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 73 [detachedXmlTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 73 [detachedXmlTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 73 [detachedXmlTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 74 [detachedProcessingInstruction, 12] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "whippoorwill" and data "chirp chirp chirp" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 74 [detachedProcessingInstruction, 12] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "whippoorwill" and data "chirp chirp chirp" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 74 [detachedProcessingInstruction, 12] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 75 [detachedComment, 3] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 75 [detachedComment, 3] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 75 [detachedComment, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 76 [detachedComment, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 76 [detachedComment, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 76 [detachedComment, 5] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 77 [detachedForeignComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 77 [detachedForeignComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 77 [detachedForeignComment, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 78 [detachedForeignComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 78 [detachedForeignComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 78 [detachedForeignComment, 4] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 79 [detachedXmlComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--בן חיים אליעזר--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 79 [detachedXmlComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--בן חיים אליעזר--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 79 [detachedXmlComment, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 80 [docfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 80 [docfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 80 [docfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 81 [foreignDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 81 [foreignDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 81 [foreignDocfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 82 [xmlDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 82 [xmlDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 82 [xmlDocfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 83 [doctype, 0] 
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 83 [doctype, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 84 [doctype, -17] assert_throws: extend() to a doctype must throw InvalidNodeTypeError function "function () {
             selection.extend(node, offset);
         }" threw object "IndexSizeError: Failed to execute 'extend' on 'Selection': -17 is not a valid offset." that is not a DOMException INVALID_NODE_TYPE_ERR: property "code" is equal to 1, expected 24
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 84 [doctype, -17] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 85 [doctype, 1] 
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 85 [doctype, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 86 [foreignDoctype, 0] 
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 86 [foreignDoctype, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 31 [testDiv, 2, paras[4], 1] and point 87 [xmlDoctype, 0] 
 FAIL extend() backwards with range 31 [testDiv, 2, paras[4], 1] and point 87 [xmlDoctype, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 0 [paras[0].firstChild, -1] 
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 0 [paras[0].firstChild, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 1 [paras[0].firstChild, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 1 [paras[0].firstChild, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 1 [paras[0].firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 2 [paras[0].firstChild, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 2 [paras[0].firstChild, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 2 [paras[0].firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 3 [paras[0].firstChild, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 3 [paras[0].firstChild, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 3 [paras[0].firstChild, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 4 [paras[0].firstChild, 8] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 4 [paras[0].firstChild, 8] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 4 [paras[0].firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 5 [paras[0].firstChild, 9] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 5 [paras[0].firstChild, 9] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 5 [paras[0].firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 6 [paras[0].firstChild, 10] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 6 [paras[0].firstChild, 10] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 6 [paras[0].firstChild, 10] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 7 [paras[0].firstChild, 65535] 
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 7 [paras[0].firstChild, 65535] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 8 [paras[1].firstChild, -1] 
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 8 [paras[1].firstChild, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 9 [paras[1].firstChild, 0] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 9 [paras[1].firstChild, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 9 [paras[1].firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 10 [paras[1].firstChild, 1] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 10 [paras[1].firstChild, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 10 [paras[1].firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 11 [paras[1].firstChild, 2] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 11 [paras[1].firstChild, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 11 [paras[1].firstChild, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 12 [paras[1].firstChild, 8] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 12 [paras[1].firstChild, 8] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 12 [paras[1].firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 13 [paras[1].firstChild, 9] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 13 [paras[1].firstChild, 9] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 13 [paras[1].firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 14 [paras[1].firstChild, 10] 
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 14 [paras[1].firstChild, 10] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 15 [paras[1].firstChild, 65535] 
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 15 [paras[1].firstChild, 65535] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 16 [detachedPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 16 [detachedPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 16 [detachedPara1.firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 17 [detachedPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 17 [detachedPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 17 [detachedPara1.firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 18 [detachedPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 18 [detachedPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 18 [detachedPara1.firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 19 [detachedPara1.firstChild, 9] 
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 19 [detachedPara1.firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 20 [foreignPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 20 [foreignPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 20 [foreignPara1.firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 21 [foreignPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 21 [foreignPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 21 [foreignPara1.firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 22 [foreignPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 22 [foreignPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 22 [foreignPara1.firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 23 [foreignPara1.firstChild, 9] 
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 23 [foreignPara1.firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 24 [document.documentElement, -1] 
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 24 [document.documentElement, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 25 [document.documentElement, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 25 [document.documentElement, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 25 [document.documentElement, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 26 [document.documentElement, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 26 [document.documentElement, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 26 [document.documentElement, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 27 [document.documentElement, 2] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 27 [document.documentElement, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 27 [document.documentElement, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 28 [document.documentElement, 7] 
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 28 [document.documentElement, 7] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 29 [document.head, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 29 [document.head, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 29 [document.head, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 30 [document.body, 3] assert_equals: focusNode must be the node passed to extend() expected Element node <body><div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 30 [document.body, 3] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 30 [document.body, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 31 [foreignDoc.documentElement, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 31 [foreignDoc.documentElement, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 31 [foreignDoc.documentElement, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 32 [foreignDoc.documentElement, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 32 [foreignDoc.documentElement, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 32 [foreignDoc.documentElement, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 33 [foreignDoc.head, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <head><title></title></head> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 33 [foreignDoc.head, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <head><title></title></head> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 33 [foreignDoc.head, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 34 [foreignDoc.body, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <body><p>Efghijkl</p><p>Mnopqrst</p>I admit that I harbor... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 34 [foreignDoc.body, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <body><p>Efghijkl</p><p>Mnopqrst</p>I admit that I harbor... but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 34 [foreignDoc.body, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 35 [paras[0], 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 35 [paras[0], 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 35 [paras[0], 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 36 [paras[0], 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 36 [paras[0], 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 36 [paras[0], 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 37 [paras[0], 2] 
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 37 [paras[0], 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 38 [paras[1], 0] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="b" style="display:none">Ijklmnop
-</p> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 38 [paras[1], 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 38 [paras[1], 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 39 [paras[1], 1] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="b" style="display:none">Ijklmnop
-</p> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 39 [paras[1], 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 39 [paras[1], 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 40 [paras[1], 2] 
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 40 [paras[1], 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 41 [detachedPara1, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 41 [detachedPara1, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 41 [detachedPara1, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 42 [detachedPara1, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 42 [detachedPara1, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 42 [detachedPara1, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 43 [testDiv, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 43 [testDiv, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 43 [testDiv, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 44 [testDiv, 3] assert_equals: focusNode must be the node passed to extend() expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 44 [testDiv, 3] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 44 [testDiv, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 45 [document, -1] 
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 45 [document, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 46 [document, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 46 [document, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 46 [document, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 47 [document, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Text node "Qrstuvwx" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 47 [document, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Element node <p id="c">Qrstuvwx</p>
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 47 [document, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 48 [document, 2] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 48 [document, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 48 [document, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 49 [document, 3] 
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 49 [document, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 50 [comment, -1] 
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 50 [comment, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 51 [comment, 0] assert_equals: focusNode must be the node passed to extend() expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 51 [comment, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 51 [comment, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 52 [comment, 4] assert_equals: focusNode must be the node passed to extend() expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 52 [comment, 4] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 52 [comment, 4] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 53 [comment, 96] 
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 53 [comment, 96] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 54 [foreignDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 54 [foreignDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 54 [foreignDoc, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 55 [foreignDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 55 [foreignDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 55 [foreignDoc, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 56 [foreignComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--"Commenter" and "commentator" mean different things.  I'v...--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 56 [foreignComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--"Commenter" and "commentator" mean different things.  I'v...--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 56 [foreignComment, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 57 [foreignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 57 [foreignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 57 [foreignTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 58 [foreignTextNode, 36] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 58 [foreignTextNode, 36] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 58 [foreignTextNode, 36] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 59 [xmlDoc, -1] 
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 59 [xmlDoc, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 60 [xmlDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 60 [xmlDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 60 [xmlDoc, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 61 [xmlDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 61 [xmlDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 61 [xmlDoc, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 62 [xmlDoc, 5] 
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 62 [xmlDoc, 5] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 63 [xmlComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 63 [xmlComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 63 [xmlComment, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 64 [xmlComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 64 [xmlComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 64 [xmlComment, 4] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 65 [processingInstruction, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 65 [processingInstruction, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 65 [processingInstruction, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 66 [processingInstruction, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 66 [processingInstruction, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 66 [processingInstruction, 5] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 67 [processingInstruction, 9] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 67 [processingInstruction, 9] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 67 [processingInstruction, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 68 [detachedTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 68 [detachedTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 68 [detachedTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 69 [detachedTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 69 [detachedTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 69 [detachedTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 70 [detachedForeignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 70 [detachedForeignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 70 [detachedForeignTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 71 [detachedForeignTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 71 [detachedForeignTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 71 [detachedForeignTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 72 [detachedXmlTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 72 [detachedXmlTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 72 [detachedXmlTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 73 [detachedXmlTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 73 [detachedXmlTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 73 [detachedXmlTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 74 [detachedProcessingInstruction, 12] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "whippoorwill" and data "chirp chirp chirp" but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 74 [detachedProcessingInstruction, 12] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "whippoorwill" and data "chirp chirp chirp" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 74 [detachedProcessingInstruction, 12] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 75 [detachedComment, 3] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 75 [detachedComment, 3] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 75 [detachedComment, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 76 [detachedComment, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 76 [detachedComment, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 76 [detachedComment, 5] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 77 [detachedForeignComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 77 [detachedForeignComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 77 [detachedForeignComment, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 78 [detachedForeignComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 78 [detachedForeignComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 78 [detachedForeignComment, 4] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 79 [detachedXmlComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--בן חיים אליעזר--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 79 [detachedXmlComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--בן חיים אליעזר--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 79 [detachedXmlComment, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 80 [docfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 80 [docfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 80 [docfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 81 [foreignDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 81 [foreignDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 81 [foreignDocfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
-FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 82 [xmlDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 82 [xmlDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 82 [xmlDocfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 83 [doctype, 0] 
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 83 [doctype, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 FAIL extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 84 [doctype, -17] assert_throws: extend() to a doctype must throw InvalidNodeTypeError function "function () {
             selection.extend(node, offset);
         }" threw object "IndexSizeError: Failed to execute 'extend' on 'Selection': -17 is not a valid offset." that is not a DOMException INVALID_NODE_TYPE_ERR: property "code" is equal to 1, expected 24
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 84 [doctype, -17] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 85 [doctype, 1] 
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 85 [doctype, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 86 [foreignDoctype, 0] 
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 86 [foreignDoctype, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 87 [xmlDoctype, 0] 
 FAIL extend() backwards with range 32 [testDiv, 1, paras[2].firstChild, 5] and point 87 [xmlDoctype, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Qrstuvwx"
 PASS extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 0 [paras[0].firstChild, -1] 
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 0 [paras[0].firstChild, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 1 [paras[0].firstChild, 0] 
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 1 [paras[0].firstChild, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 1 [paras[0].firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 2 [paras[0].firstChild, 1] assert_equals: focusOffset must be the offset passed to extend() expected 1 but got 2
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 2 [paras[0].firstChild, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 2 [paras[0].firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 3 [paras[0].firstChild, 2] 
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 3 [paras[0].firstChild, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 3 [paras[0].firstChild, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 4 [paras[0].firstChild, 8] 
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 4 [paras[0].firstChild, 8] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 4 [paras[0].firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 5 [paras[0].firstChild, 9] assert_equals: focusOffset must be the offset passed to extend() expected 9 but got 10
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 5 [paras[0].firstChild, 9] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 5 [paras[0].firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 6 [paras[0].firstChild, 10] 
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 6 [paras[0].firstChild, 10] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 6 [paras[0].firstChild, 10] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 7 [paras[0].firstChild, 65535] 
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 7 [paras[0].firstChild, 65535] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 8 [paras[1].firstChild, -1] 
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 8 [paras[1].firstChild, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 9 [paras[1].firstChild, 0] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 9 [paras[1].firstChild, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 9 [paras[1].firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 10 [paras[1].firstChild, 1] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 10 [paras[1].firstChild, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 10 [paras[1].firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 11 [paras[1].firstChild, 2] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 11 [paras[1].firstChild, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 11 [paras[1].firstChild, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 12 [paras[1].firstChild, 8] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 12 [paras[1].firstChild, 8] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 12 [paras[1].firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 13 [paras[1].firstChild, 9] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 13 [paras[1].firstChild, 9] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 13 [paras[1].firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 14 [paras[1].firstChild, 10] 
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 14 [paras[1].firstChild, 10] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 15 [paras[1].firstChild, 65535] 
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 15 [paras[1].firstChild, 65535] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 16 [detachedPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 16 [detachedPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 16 [detachedPara1.firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 17 [detachedPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 17 [detachedPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 17 [detachedPara1.firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 18 [detachedPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 18 [detachedPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 18 [detachedPara1.firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 19 [detachedPara1.firstChild, 9] 
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 19 [detachedPara1.firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 20 [foreignPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 20 [foreignPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 20 [foreignPara1.firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 21 [foreignPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 21 [foreignPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 21 [foreignPara1.firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 22 [foreignPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 22 [foreignPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 22 [foreignPara1.firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 23 [foreignPara1.firstChild, 9] 
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 23 [foreignPara1.firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 24 [document.documentElement, -1] 
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 24 [document.documentElement, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 25 [document.documentElement, 0] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 25 [document.documentElement, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 25 [document.documentElement, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 26 [document.documentElement, 1] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 26 [document.documentElement, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 26 [document.documentElement, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 27 [document.documentElement, 2] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 27 [document.documentElement, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 27 [document.documentElement, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 28 [document.documentElement, 7] 
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 28 [document.documentElement, 7] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 29 [document.head, 1] assert_equals: focusNode must be the node passed to extend() expected Element node <head><title>Selection extend() tests</title>
-<meta chars... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 29 [document.head, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 29 [document.head, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 30 [document.body, 3] assert_equals: focusNode must be the node passed to extend() expected Element node <body><div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 30 [document.body, 3] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 30 [document.body, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 31 [foreignDoc.documentElement, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 31 [foreignDoc.documentElement, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 31 [foreignDoc.documentElement, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 32 [foreignDoc.documentElement, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 32 [foreignDoc.documentElement, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 32 [foreignDoc.documentElement, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 33 [foreignDoc.head, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <head><title></title></head> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 33 [foreignDoc.head, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <head><title></title></head> but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 33 [foreignDoc.head, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 34 [foreignDoc.body, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <body><p>Efghijkl</p><p>Mnopqrst</p>I admit that I harbor... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 34 [foreignDoc.body, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <body><p>Efghijkl</p><p>Mnopqrst</p>I admit that I harbor... but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 34 [foreignDoc.body, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 35 [paras[0], 0] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 35 [paras[0], 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 35 [paras[0], 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 36 [paras[0], 1] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 36 [paras[0], 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 36 [paras[0], 1] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 37 [paras[0], 2] 
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 37 [paras[0], 2] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 38 [paras[1], 0] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="b" style="display:none">Ijklmnop
-</p> but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 38 [paras[1], 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 38 [paras[1], 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 39 [paras[1], 1] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="b" style="display:none">Ijklmnop
-</p> but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 39 [paras[1], 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 39 [paras[1], 1] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 40 [paras[1], 2] 
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 40 [paras[1], 2] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 41 [detachedPara1, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 41 [detachedPara1, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 41 [detachedPara1, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 42 [detachedPara1, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 42 [detachedPara1, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 42 [detachedPara1, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 43 [testDiv, 0] assert_equals: focusNode must be the node passed to extend() expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 43 [testDiv, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 43 [testDiv, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 44 [testDiv, 3] assert_equals: focusNode must be the node passed to extend() expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id="b" s... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 44 [testDiv, 3] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 44 [testDiv, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 45 [document, -1] 
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 45 [document, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 46 [document, 0] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 46 [document, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 46 [document, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 47 [document, 1] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 47 [document, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 47 [document, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 48 [document, 2] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 48 [document, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 48 [document, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 49 [document, 3] 
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 49 [document, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 50 [comment, -1] 
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 50 [comment, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 51 [comment, 0] assert_equals: focusNode must be the node passed to extend() expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 51 [comment, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 51 [comment, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 52 [comment, 4] assert_equals: focusNode must be the node passed to extend() expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 52 [comment, 4] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <html><head><title>Selection extend() tests</title>
+<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 52 [comment, 4] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 53 [comment, 96] 
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 53 [comment, 96] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 54 [foreignDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 54 [foreignDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 54 [foreignDoc, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 55 [foreignDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 55 [foreignDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 55 [foreignDoc, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 56 [foreignComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--"Commenter" and "commentator" mean different things.  I'v...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 56 [foreignComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--"Commenter" and "commentator" mean different things.  I'v...--> but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 56 [foreignComment, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 57 [foreignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 57 [foreignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 57 [foreignTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 58 [foreignTextNode, 36] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 58 [foreignTextNode, 36] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 58 [foreignTextNode, 36] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 59 [xmlDoc, -1] 
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 59 [xmlDoc, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 60 [xmlDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 60 [xmlDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 60 [xmlDoc, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 61 [xmlDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 61 [xmlDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 61 [xmlDoc, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 62 [xmlDoc, 5] 
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 62 [xmlDoc, 5] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 63 [xmlComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 63 [xmlComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 63 [xmlComment, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 64 [xmlComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 64 [xmlComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 64 [xmlComment, 4] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 65 [processingInstruction, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 65 [processingInstruction, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 65 [processingInstruction, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 66 [processingInstruction, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 66 [processingInstruction, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 66 [processingInstruction, 5] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 67 [processingInstruction, 9] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 67 [processingInstruction, 9] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 67 [processingInstruction, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 68 [detachedTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 68 [detachedTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 68 [detachedTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 69 [detachedTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 69 [detachedTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 69 [detachedTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 70 [detachedForeignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 70 [detachedForeignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 70 [detachedForeignTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 71 [detachedForeignTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 71 [detachedForeignTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 71 [detachedForeignTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 72 [detachedXmlTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 72 [detachedXmlTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 72 [detachedXmlTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 73 [detachedXmlTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 73 [detachedXmlTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 73 [detachedXmlTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 74 [detachedProcessingInstruction, 12] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "whippoorwill" and data "chirp chirp chirp" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 74 [detachedProcessingInstruction, 12] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "whippoorwill" and data "chirp chirp chirp" but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 74 [detachedProcessingInstruction, 12] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 75 [detachedComment, 3] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 75 [detachedComment, 3] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 75 [detachedComment, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 76 [detachedComment, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 76 [detachedComment, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 76 [detachedComment, 5] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 77 [detachedForeignComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 77 [detachedForeignComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 77 [detachedForeignComment, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 78 [detachedForeignComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 78 [detachedForeignComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 78 [detachedForeignComment, 4] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 79 [detachedXmlComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--בן חיים אליעזר--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 79 [detachedXmlComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--בן חיים אליעזר--> but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 79 [detachedXmlComment, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 80 [docfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 80 [docfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 80 [docfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 81 [foreignDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 81 [foreignDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 81 [foreignDocfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 82 [xmlDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 82 [xmlDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Element node <html><head><title>Selection extend() tests</title>
+<meta...
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 82 [xmlDocfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 83 [doctype, 0] 
 FAIL extend() backwards with range 33 [document.documentElement, 1, document.body, 0] and point 83 [doctype, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <html><head><title>Selection extend() tests</title>
 <meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() forwards with range 33 [document.documentElement, 1, document.body, 0] and point 84 [doctype, -17] assert_throws: extend() to a doctype must throw InvalidNodeTypeError function "function () {
             selection.extend(node, offset);
         }" threw object "IndexSizeError: Failed to execute 'extend' on 'Selection': -17 is not a valid offset." that is not a DOMException INVALID_NODE_TYPE_ERR: property "code" is equal to 1, expected 24
@@ skipping 184 matching lines @@
 FAIL extend() backwards with range 34 [foreignDoc.documentElement, 1, foreignDoc.body, 0] and point 84 [doctype, -17] Failed to execute 'extend' on 'Selection': This Selection object doesn't have any Ranges.
 FAIL extend() forwards with range 34 [foreignDoc.documentElement, 1, foreignDoc.body, 0] and point 85 [doctype, 1] assert_equals: Sanity check: rangeCount must be correct expected 1 but got 0
 FAIL extend() backwards with range 34 [foreignDoc.documentElement, 1, foreignDoc.body, 0] and point 85 [doctype, 1] Failed to execute 'extend' on 'Selection': This Selection object doesn't have any Ranges.
 FAIL extend() forwards with range 34 [foreignDoc.documentElement, 1, foreignDoc.body, 0] and point 86 [foreignDoctype, 0] assert_equals: Sanity check: rangeCount must be correct expected 1 but got 0
 FAIL extend() backwards with range 34 [foreignDoc.documentElement, 1, foreignDoc.body, 0] and point 86 [foreignDoctype, 0] Failed to execute 'extend' on 'Selection': This Selection object doesn't have any Ranges.
 FAIL extend() forwards with range 34 [foreignDoc.documentElement, 1, foreignDoc.body, 0] and point 87 [xmlDoctype, 0] assert_equals: Sanity check: rangeCount must be correct expected 1 but got 0
 FAIL extend() backwards with range 34 [foreignDoc.documentElement, 1, foreignDoc.body, 0] and point 87 [xmlDoctype, 0] Failed to execute 'extend' on 'Selection': This Selection object doesn't have any Ranges.
 PASS extend() forwards with range 35 [document, 0, document, 1] and point 0 [paras[0].firstChild, -1] 
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 0 [paras[0].firstChild, -1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 35 [document, 0, document, 1] and point 1 [paras[0].firstChild, 0] 
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 1 [paras[0].firstChild, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 1 [paras[0].firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 2 [paras[0].firstChild, 1] assert_equals: focusOffset must be the offset passed to extend() expected 1 but got 2
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 2 [paras[0].firstChild, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 2 [paras[0].firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 35 [document, 0, document, 1] and point 3 [paras[0].firstChild, 2] 
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 3 [paras[0].firstChild, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 3 [paras[0].firstChild, 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 35 [document, 0, document, 1] and point 4 [paras[0].firstChild, 8] 
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 4 [paras[0].firstChild, 8] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 4 [paras[0].firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 5 [paras[0].firstChild, 9] assert_equals: focusOffset must be the offset passed to extend() expected 9 but got 10
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 5 [paras[0].firstChild, 9] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 5 [paras[0].firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 35 [document, 0, document, 1] and point 6 [paras[0].firstChild, 10] 
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 6 [paras[0].firstChild, 10] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 6 [paras[0].firstChild, 10] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 35 [document, 0, document, 1] and point 7 [paras[0].firstChild, 65535] 
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 7 [paras[0].firstChild, 65535] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 35 [document, 0, document, 1] and point 8 [paras[1].firstChild, -1] 
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 8 [paras[1].firstChild, -1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 9 [paras[1].firstChild, 0] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 9 [paras[1].firstChild, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 9 [paras[1].firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 10 [paras[1].firstChild, 1] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 10 [paras[1].firstChild, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 10 [paras[1].firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 11 [paras[1].firstChild, 2] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 11 [paras[1].firstChild, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 11 [paras[1].firstChild, 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 12 [paras[1].firstChild, 8] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 12 [paras[1].firstChild, 8] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 12 [paras[1].firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 13 [paras[1].firstChild, 9] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 13 [paras[1].firstChild, 9] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 13 [paras[1].firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 35 [document, 0, document, 1] and point 14 [paras[1].firstChild, 10] 
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 14 [paras[1].firstChild, 10] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 35 [document, 0, document, 1] and point 15 [paras[1].firstChild, 65535] 
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 15 [paras[1].firstChild, 65535] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 16 [detachedPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 16 [detachedPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 16 [detachedPara1.firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 17 [detachedPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 17 [detachedPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 17 [detachedPara1.firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 18 [detachedPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 18 [detachedPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 18 [detachedPara1.firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 35 [document, 0, document, 1] and point 19 [detachedPara1.firstChild, 9] 
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 19 [detachedPara1.firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 20 [foreignPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 20 [foreignPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 20 [foreignPara1.firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 21 [foreignPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 21 [foreignPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 21 [foreignPara1.firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 22 [foreignPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 22 [foreignPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 22 [foreignPara1.firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 35 [document, 0, document, 1] and point 23 [foreignPara1.firstChild, 9] 
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 23 [foreignPara1.firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 35 [document, 0, document, 1] and point 24 [document.documentElement, -1] 
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 24 [document.documentElement, -1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 25 [document.documentElement, 0] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 25 [document.documentElement, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 25 [document.documentElement, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 26 [document.documentElement, 1] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 26 [document.documentElement, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 26 [document.documentElement, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 27 [document.documentElement, 2] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 27 [document.documentElement, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 27 [document.documentElement, 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 35 [document, 0, document, 1] and point 28 [document.documentElement, 7] 
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 28 [document.documentElement, 7] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 29 [document.head, 1] assert_equals: focusNode must be the node passed to extend() expected Element node <head><title>Selection extend() tests</title>
-<meta chars... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 29 [document.head, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 29 [document.head, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 30 [document.body, 3] assert_equals: focusNode must be the node passed to extend() expected Element node <body><div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 30 [document.body, 3] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 30 [document.body, 3] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 31 [foreignDoc.documentElement, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 31 [foreignDoc.documentElement, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 31 [foreignDoc.documentElement, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 32 [foreignDoc.documentElement, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 32 [foreignDoc.documentElement, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 32 [foreignDoc.documentElement, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 33 [foreignDoc.head, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <head><title></title></head> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 33 [foreignDoc.head, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <head><title></title></head> but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 33 [foreignDoc.head, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 34 [foreignDoc.body, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <body><p>Efghijkl</p><p>Mnopqrst</p>I admit that I harbor... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 34 [foreignDoc.body, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <body><p>Efghijkl</p><p>Mnopqrst</p>I admit that I harbor... but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 34 [foreignDoc.body, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 35 [paras[0], 0] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 35 [paras[0], 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 35 [paras[0], 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 36 [paras[0], 1] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 36 [paras[0], 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 36 [paras[0], 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 35 [document, 0, document, 1] and point 37 [paras[0], 2] 
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 37 [paras[0], 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 38 [paras[1], 0] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="b" style="display:none">Ijklmnop
-</p> but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 38 [paras[1], 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 38 [paras[1], 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 39 [paras[1], 1] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="b" style="display:none">Ijklmnop
-</p> but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 39 [paras[1], 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 39 [paras[1], 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 35 [document, 0, document, 1] and point 40 [paras[1], 2] 
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 40 [paras[1], 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 41 [detachedPara1, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 41 [detachedPara1, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 41 [detachedPara1, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 42 [detachedPara1, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 42 [detachedPara1, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 42 [detachedPara1, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 43 [testDiv, 0] assert_equals: focusNode must be the node passed to extend() expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 43 [testDiv, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 43 [testDiv, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 44 [testDiv, 3] assert_equals: focusNode must be the node passed to extend() expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id="b" s... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 44 [testDiv, 3] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 44 [testDiv, 3] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 35 [document, 0, document, 1] and point 45 [document, -1] 
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 45 [document, -1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 46 [document, 0] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 46 [document, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 46 [document, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 47 [document, 1] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 47 [document, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 47 [document, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 48 [document, 2] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 48 [document, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 48 [document, 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 35 [document, 0, document, 1] and point 49 [document, 3] 
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 49 [document, 3] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 35 [document, 0, document, 1] and point 50 [comment, -1] 
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 50 [comment, -1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 51 [comment, 0] assert_equals: focusNode must be the node passed to extend() expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 51 [comment, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 51 [comment, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 52 [comment, 4] assert_equals: focusNode must be the node passed to extend() expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 52 [comment, 4] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 52 [comment, 4] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 35 [document, 0, document, 1] and point 53 [comment, 96] 
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 53 [comment, 96] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 54 [foreignDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 54 [foreignDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 54 [foreignDoc, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 55 [foreignDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 55 [foreignDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 55 [foreignDoc, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 56 [foreignComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--"Commenter" and "commentator" mean different things.  I'v...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 56 [foreignComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--"Commenter" and "commentator" mean different things.  I'v...--> but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 56 [foreignComment, 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 57 [foreignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 57 [foreignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 57 [foreignTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 58 [foreignTextNode, 36] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 58 [foreignTextNode, 36] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 58 [foreignTextNode, 36] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 35 [document, 0, document, 1] and point 59 [xmlDoc, -1] 
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 59 [xmlDoc, -1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 60 [xmlDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 60 [xmlDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 60 [xmlDoc, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 61 [xmlDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 61 [xmlDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 61 [xmlDoc, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 35 [document, 0, document, 1] and point 62 [xmlDoc, 5] 
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 62 [xmlDoc, 5] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 63 [xmlComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 63 [xmlComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 63 [xmlComment, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 64 [xmlComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 64 [xmlComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 64 [xmlComment, 4] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 65 [processingInstruction, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 65 [processingInstruction, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 65 [processingInstruction, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 66 [processingInstruction, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 66 [processingInstruction, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 66 [processingInstruction, 5] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 67 [processingInstruction, 9] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 67 [processingInstruction, 9] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 67 [processingInstruction, 9] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 68 [detachedTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 68 [detachedTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 68 [detachedTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 69 [detachedTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 69 [detachedTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 69 [detachedTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 70 [detachedForeignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 70 [detachedForeignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 70 [detachedForeignTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 71 [detachedForeignTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 71 [detachedForeignTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 71 [detachedForeignTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 72 [detachedXmlTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 72 [detachedXmlTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 72 [detachedXmlTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 73 [detachedXmlTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 73 [detachedXmlTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 73 [detachedXmlTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 74 [detachedProcessingInstruction, 12] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "whippoorwill" and data "chirp chirp chirp" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 74 [detachedProcessingInstruction, 12] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "whippoorwill" and data "chirp chirp chirp" but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 74 [detachedProcessingInstruction, 12] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 75 [detachedComment, 3] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 75 [detachedComment, 3] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 75 [detachedComment, 3] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 76 [detachedComment, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 76 [detachedComment, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 76 [detachedComment, 5] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 77 [detachedForeignComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 77 [detachedForeignComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 77 [detachedForeignComment, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 78 [detachedForeignComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 78 [detachedForeignComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 78 [detachedForeignComment, 4] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 79 [detachedXmlComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--בן חיים אליעזר--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 79 [detachedXmlComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--בן חיים אליעזר--> but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 79 [detachedXmlComment, 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 80 [docfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 80 [docfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 80 [docfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 81 [foreignDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 81 [foreignDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 81 [foreignDocfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 35 [document, 0, document, 1] and point 82 [xmlDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 35 [document, 0, document, 1] and point 82 [xmlDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Document node with 2 children
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 82 [xmlDocfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 35 [document, 0, document, 1] and point 83 [doctype, 0] 
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 83 [doctype, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() forwards with range 35 [document, 0, document, 1] and point 84 [doctype, -17] assert_throws: extend() to a doctype must throw InvalidNodeTypeError function "function () {
             selection.extend(node, offset);
         }" threw object "IndexSizeError: Failed to execute 'extend' on 'Selection': -17 is not a valid offset." that is not a DOMException INVALID_NODE_TYPE_ERR: property "code" is equal to 1, expected 24
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 84 [doctype, -17] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 35 [document, 0, document, 1] and point 85 [doctype, 1] 
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 85 [doctype, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 35 [document, 0, document, 1] and point 86 [foreignDoctype, 0] 
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 86 [foreignDoctype, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 35 [document, 0, document, 1] and point 87 [xmlDoctype, 0] 
 FAIL extend() backwards with range 35 [document, 0, document, 1] and point 87 [xmlDoctype, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 36 [document, 0, document, 2] and point 0 [paras[0].firstChild, -1] 
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 0 [paras[0].firstChild, -1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 36 [document, 0, document, 2] and point 1 [paras[0].firstChild, 0] 
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 1 [paras[0].firstChild, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 1 [paras[0].firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 2 [paras[0].firstChild, 1] assert_equals: focusOffset must be the offset passed to extend() expected 1 but got 2
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 2 [paras[0].firstChild, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 2 [paras[0].firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 36 [document, 0, document, 2] and point 3 [paras[0].firstChild, 2] 
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 3 [paras[0].firstChild, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 3 [paras[0].firstChild, 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 36 [document, 0, document, 2] and point 4 [paras[0].firstChild, 8] 
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 4 [paras[0].firstChild, 8] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 4 [paras[0].firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 5 [paras[0].firstChild, 9] assert_equals: focusOffset must be the offset passed to extend() expected 9 but got 10
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 5 [paras[0].firstChild, 9] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 5 [paras[0].firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 36 [document, 0, document, 2] and point 6 [paras[0].firstChild, 10] 
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 6 [paras[0].firstChild, 10] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 6 [paras[0].firstChild, 10] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 36 [document, 0, document, 2] and point 7 [paras[0].firstChild, 65535] 
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 7 [paras[0].firstChild, 65535] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 36 [document, 0, document, 2] and point 8 [paras[1].firstChild, -1] 
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 8 [paras[1].firstChild, -1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 9 [paras[1].firstChild, 0] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 9 [paras[1].firstChild, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 9 [paras[1].firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 10 [paras[1].firstChild, 1] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 10 [paras[1].firstChild, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 10 [paras[1].firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 11 [paras[1].firstChild, 2] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 11 [paras[1].firstChild, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 11 [paras[1].firstChild, 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 12 [paras[1].firstChild, 8] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 12 [paras[1].firstChild, 8] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 12 [paras[1].firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 13 [paras[1].firstChild, 9] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 13 [paras[1].firstChild, 9] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 13 [paras[1].firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 36 [document, 0, document, 2] and point 14 [paras[1].firstChild, 10] 
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 14 [paras[1].firstChild, 10] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 36 [document, 0, document, 2] and point 15 [paras[1].firstChild, 65535] 
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 15 [paras[1].firstChild, 65535] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 16 [detachedPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 16 [detachedPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 16 [detachedPara1.firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 17 [detachedPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 17 [detachedPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 17 [detachedPara1.firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 18 [detachedPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 18 [detachedPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 18 [detachedPara1.firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 36 [document, 0, document, 2] and point 19 [detachedPara1.firstChild, 9] 
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 19 [detachedPara1.firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 20 [foreignPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 20 [foreignPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 20 [foreignPara1.firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 21 [foreignPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 21 [foreignPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 21 [foreignPara1.firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 22 [foreignPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 22 [foreignPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 22 [foreignPara1.firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 36 [document, 0, document, 2] and point 23 [foreignPara1.firstChild, 9] 
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 23 [foreignPara1.firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 36 [document, 0, document, 2] and point 24 [document.documentElement, -1] 
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 24 [document.documentElement, -1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 25 [document.documentElement, 0] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 25 [document.documentElement, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 25 [document.documentElement, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 26 [document.documentElement, 1] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 26 [document.documentElement, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 26 [document.documentElement, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 27 [document.documentElement, 2] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 27 [document.documentElement, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 27 [document.documentElement, 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 36 [document, 0, document, 2] and point 28 [document.documentElement, 7] 
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 28 [document.documentElement, 7] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 29 [document.head, 1] assert_equals: focusNode must be the node passed to extend() expected Element node <head><title>Selection extend() tests</title>
-<meta chars... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 29 [document.head, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 29 [document.head, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 30 [document.body, 3] assert_equals: focusNode must be the node passed to extend() expected Element node <body><div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 30 [document.body, 3] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 30 [document.body, 3] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 31 [foreignDoc.documentElement, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 31 [foreignDoc.documentElement, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 31 [foreignDoc.documentElement, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 32 [foreignDoc.documentElement, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 32 [foreignDoc.documentElement, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 32 [foreignDoc.documentElement, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 33 [foreignDoc.head, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <head><title></title></head> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 33 [foreignDoc.head, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <head><title></title></head> but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 33 [foreignDoc.head, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 34 [foreignDoc.body, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <body><p>Efghijkl</p><p>Mnopqrst</p>I admit that I harbor... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 34 [foreignDoc.body, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <body><p>Efghijkl</p><p>Mnopqrst</p>I admit that I harbor... but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 34 [foreignDoc.body, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 35 [paras[0], 0] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 35 [paras[0], 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 35 [paras[0], 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 36 [paras[0], 1] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 36 [paras[0], 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 36 [paras[0], 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 36 [document, 0, document, 2] and point 37 [paras[0], 2] 
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 37 [paras[0], 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 38 [paras[1], 0] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="b" style="display:none">Ijklmnop
-</p> but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 38 [paras[1], 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 38 [paras[1], 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 39 [paras[1], 1] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="b" style="display:none">Ijklmnop
-</p> but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 39 [paras[1], 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 39 [paras[1], 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 36 [document, 0, document, 2] and point 40 [paras[1], 2] 
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 40 [paras[1], 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 41 [detachedPara1, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 41 [detachedPara1, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 41 [detachedPara1, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 42 [detachedPara1, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 42 [detachedPara1, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 42 [detachedPara1, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 43 [testDiv, 0] assert_equals: focusNode must be the node passed to extend() expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 43 [testDiv, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 43 [testDiv, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 44 [testDiv, 3] assert_equals: focusNode must be the node passed to extend() expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id="b" s... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 44 [testDiv, 3] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 44 [testDiv, 3] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 36 [document, 0, document, 2] and point 45 [document, -1] 
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 45 [document, -1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 46 [document, 0] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 46 [document, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 46 [document, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 47 [document, 1] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 47 [document, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 47 [document, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 48 [document, 2] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 48 [document, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 48 [document, 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 36 [document, 0, document, 2] and point 49 [document, 3] 
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 49 [document, 3] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 36 [document, 0, document, 2] and point 50 [comment, -1] 
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 50 [comment, -1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 51 [comment, 0] assert_equals: focusNode must be the node passed to extend() expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 51 [comment, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 51 [comment, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 52 [comment, 4] assert_equals: focusNode must be the node passed to extend() expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 52 [comment, 4] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 52 [comment, 4] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 36 [document, 0, document, 2] and point 53 [comment, 96] 
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 53 [comment, 96] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 54 [foreignDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 54 [foreignDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 54 [foreignDoc, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 55 [foreignDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 55 [foreignDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 55 [foreignDoc, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 56 [foreignComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--"Commenter" and "commentator" mean different things.  I'v...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 56 [foreignComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--"Commenter" and "commentator" mean different things.  I'v...--> but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 56 [foreignComment, 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 57 [foreignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 57 [foreignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 57 [foreignTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 58 [foreignTextNode, 36] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 58 [foreignTextNode, 36] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 58 [foreignTextNode, 36] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 36 [document, 0, document, 2] and point 59 [xmlDoc, -1] 
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 59 [xmlDoc, -1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 60 [xmlDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 60 [xmlDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 60 [xmlDoc, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 61 [xmlDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 61 [xmlDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 61 [xmlDoc, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 36 [document, 0, document, 2] and point 62 [xmlDoc, 5] 
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 62 [xmlDoc, 5] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 63 [xmlComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 63 [xmlComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 63 [xmlComment, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 64 [xmlComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 64 [xmlComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 64 [xmlComment, 4] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 65 [processingInstruction, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 65 [processingInstruction, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 65 [processingInstruction, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 66 [processingInstruction, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 66 [processingInstruction, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 66 [processingInstruction, 5] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 67 [processingInstruction, 9] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 67 [processingInstruction, 9] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 67 [processingInstruction, 9] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 68 [detachedTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 68 [detachedTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 68 [detachedTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 69 [detachedTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 69 [detachedTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 69 [detachedTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 70 [detachedForeignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 70 [detachedForeignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 70 [detachedForeignTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 71 [detachedForeignTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 71 [detachedForeignTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 71 [detachedForeignTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 72 [detachedXmlTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 72 [detachedXmlTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 72 [detachedXmlTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 73 [detachedXmlTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 73 [detachedXmlTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 73 [detachedXmlTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 74 [detachedProcessingInstruction, 12] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "whippoorwill" and data "chirp chirp chirp" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 74 [detachedProcessingInstruction, 12] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "whippoorwill" and data "chirp chirp chirp" but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 74 [detachedProcessingInstruction, 12] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 75 [detachedComment, 3] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 75 [detachedComment, 3] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 75 [detachedComment, 3] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 76 [detachedComment, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 76 [detachedComment, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 76 [detachedComment, 5] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 77 [detachedForeignComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 77 [detachedForeignComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 77 [detachedForeignComment, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 78 [detachedForeignComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 78 [detachedForeignComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 78 [detachedForeignComment, 4] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 79 [detachedXmlComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--בן חיים אליעזר--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 79 [detachedXmlComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--בן חיים אליעזר--> but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 79 [detachedXmlComment, 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 80 [docfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 80 [docfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 80 [docfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 81 [foreignDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 81 [foreignDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 81 [foreignDocfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 36 [document, 0, document, 2] and point 82 [xmlDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 36 [document, 0, document, 2] and point 82 [xmlDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Document node with 2 children
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 82 [xmlDocfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 36 [document, 0, document, 2] and point 83 [doctype, 0] 
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 83 [doctype, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() forwards with range 36 [document, 0, document, 2] and point 84 [doctype, -17] assert_throws: extend() to a doctype must throw InvalidNodeTypeError function "function () {
             selection.extend(node, offset);
         }" threw object "IndexSizeError: Failed to execute 'extend' on 'Selection': -17 is not a valid offset." that is not a DOMException INVALID_NODE_TYPE_ERR: property "code" is equal to 1, expected 24
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 84 [doctype, -17] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 36 [document, 0, document, 2] and point 85 [doctype, 1] 
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 85 [doctype, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 36 [document, 0, document, 2] and point 86 [foreignDoctype, 0] 
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 86 [foreignDoctype, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 36 [document, 0, document, 2] and point 87 [xmlDoctype, 0] 
 FAIL extend() backwards with range 36 [document, 0, document, 2] and point 87 [xmlDoctype, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 37 [document, 1, document, 2] and point 0 [paras[0].firstChild, -1] 
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 0 [paras[0].firstChild, -1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 37 [document, 1, document, 2] and point 1 [paras[0].firstChild, 0] 
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 1 [paras[0].firstChild, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 1 [paras[0].firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 2 [paras[0].firstChild, 1] assert_equals: focusOffset must be the offset passed to extend() expected 1 but got 2
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 2 [paras[0].firstChild, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 2 [paras[0].firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 37 [document, 1, document, 2] and point 3 [paras[0].firstChild, 2] 
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 3 [paras[0].firstChild, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 3 [paras[0].firstChild, 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 37 [document, 1, document, 2] and point 4 [paras[0].firstChild, 8] 
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 4 [paras[0].firstChild, 8] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 4 [paras[0].firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 5 [paras[0].firstChild, 9] assert_equals: focusOffset must be the offset passed to extend() expected 9 but got 10
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 5 [paras[0].firstChild, 9] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 5 [paras[0].firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 37 [document, 1, document, 2] and point 6 [paras[0].firstChild, 10] 
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 6 [paras[0].firstChild, 10] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 6 [paras[0].firstChild, 10] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 37 [document, 1, document, 2] and point 7 [paras[0].firstChild, 65535] 
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 7 [paras[0].firstChild, 65535] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 37 [document, 1, document, 2] and point 8 [paras[1].firstChild, -1] 
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 8 [paras[1].firstChild, -1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 9 [paras[1].firstChild, 0] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 9 [paras[1].firstChild, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 9 [paras[1].firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 10 [paras[1].firstChild, 1] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 10 [paras[1].firstChild, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 10 [paras[1].firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 11 [paras[1].firstChild, 2] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 11 [paras[1].firstChild, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 11 [paras[1].firstChild, 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 12 [paras[1].firstChild, 8] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 12 [paras[1].firstChild, 8] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 12 [paras[1].firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 13 [paras[1].firstChild, 9] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 13 [paras[1].firstChild, 9] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 13 [paras[1].firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 37 [document, 1, document, 2] and point 14 [paras[1].firstChild, 10] 
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 14 [paras[1].firstChild, 10] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 37 [document, 1, document, 2] and point 15 [paras[1].firstChild, 65535] 
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 15 [paras[1].firstChild, 65535] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 16 [detachedPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 16 [detachedPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 16 [detachedPara1.firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 17 [detachedPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 17 [detachedPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 17 [detachedPara1.firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 18 [detachedPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 18 [detachedPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 18 [detachedPara1.firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 37 [document, 1, document, 2] and point 19 [detachedPara1.firstChild, 9] 
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 19 [detachedPara1.firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 20 [foreignPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 20 [foreignPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 20 [foreignPara1.firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 21 [foreignPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 21 [foreignPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 21 [foreignPara1.firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 22 [foreignPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 22 [foreignPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 22 [foreignPara1.firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 37 [document, 1, document, 2] and point 23 [foreignPara1.firstChild, 9] 
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 23 [foreignPara1.firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 37 [document, 1, document, 2] and point 24 [document.documentElement, -1] 
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 24 [document.documentElement, -1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 25 [document.documentElement, 0] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 25 [document.documentElement, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 25 [document.documentElement, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 26 [document.documentElement, 1] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 26 [document.documentElement, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 26 [document.documentElement, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 27 [document.documentElement, 2] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 27 [document.documentElement, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 27 [document.documentElement, 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 37 [document, 1, document, 2] and point 28 [document.documentElement, 7] 
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 28 [document.documentElement, 7] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 29 [document.head, 1] assert_equals: focusNode must be the node passed to extend() expected Element node <head><title>Selection extend() tests</title>
-<meta chars... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 29 [document.head, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 29 [document.head, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 30 [document.body, 3] assert_equals: focusNode must be the node passed to extend() expected Element node <body><div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 30 [document.body, 3] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 30 [document.body, 3] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 31 [foreignDoc.documentElement, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 31 [foreignDoc.documentElement, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 31 [foreignDoc.documentElement, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 32 [foreignDoc.documentElement, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 32 [foreignDoc.documentElement, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 32 [foreignDoc.documentElement, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 33 [foreignDoc.head, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <head><title></title></head> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 33 [foreignDoc.head, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <head><title></title></head> but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 33 [foreignDoc.head, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 34 [foreignDoc.body, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <body><p>Efghijkl</p><p>Mnopqrst</p>I admit that I harbor... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 34 [foreignDoc.body, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <body><p>Efghijkl</p><p>Mnopqrst</p>I admit that I harbor... but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 34 [foreignDoc.body, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 35 [paras[0], 0] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 35 [paras[0], 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 35 [paras[0], 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 36 [paras[0], 1] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 36 [paras[0], 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 36 [paras[0], 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 37 [document, 1, document, 2] and point 37 [paras[0], 2] 
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 37 [paras[0], 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 38 [paras[1], 0] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="b" style="display:none">Ijklmnop
-</p> but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 38 [paras[1], 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 38 [paras[1], 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 39 [paras[1], 1] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="b" style="display:none">Ijklmnop
-</p> but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 39 [paras[1], 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 39 [paras[1], 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 37 [document, 1, document, 2] and point 40 [paras[1], 2] 
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 40 [paras[1], 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 41 [detachedPara1, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 41 [detachedPara1, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 41 [detachedPara1, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 42 [detachedPara1, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 42 [detachedPara1, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 42 [detachedPara1, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 43 [testDiv, 0] assert_equals: focusNode must be the node passed to extend() expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 43 [testDiv, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 43 [testDiv, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 44 [testDiv, 3] assert_equals: focusNode must be the node passed to extend() expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id="b" s... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 44 [testDiv, 3] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 44 [testDiv, 3] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 37 [document, 1, document, 2] and point 45 [document, -1] 
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 45 [document, -1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 46 [document, 0] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 46 [document, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 46 [document, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 47 [document, 1] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 47 [document, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 47 [document, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 48 [document, 2] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 48 [document, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 48 [document, 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 37 [document, 1, document, 2] and point 49 [document, 3] 
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 49 [document, 3] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 37 [document, 1, document, 2] and point 50 [comment, -1] 
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 50 [comment, -1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 51 [comment, 0] assert_equals: focusNode must be the node passed to extend() expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 51 [comment, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 51 [comment, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 52 [comment, 4] assert_equals: focusNode must be the node passed to extend() expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 52 [comment, 4] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 52 [comment, 4] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 37 [document, 1, document, 2] and point 53 [comment, 96] 
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 53 [comment, 96] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 54 [foreignDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 54 [foreignDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 54 [foreignDoc, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 55 [foreignDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 55 [foreignDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 55 [foreignDoc, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 56 [foreignComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--"Commenter" and "commentator" mean different things.  I'v...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 56 [foreignComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--"Commenter" and "commentator" mean different things.  I'v...--> but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 56 [foreignComment, 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 57 [foreignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 57 [foreignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 57 [foreignTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 58 [foreignTextNode, 36] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 58 [foreignTextNode, 36] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 58 [foreignTextNode, 36] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 37 [document, 1, document, 2] and point 59 [xmlDoc, -1] 
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 59 [xmlDoc, -1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 60 [xmlDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 60 [xmlDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 60 [xmlDoc, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 61 [xmlDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 61 [xmlDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 61 [xmlDoc, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 37 [document, 1, document, 2] and point 62 [xmlDoc, 5] 
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 62 [xmlDoc, 5] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 63 [xmlComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 63 [xmlComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 63 [xmlComment, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 64 [xmlComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 64 [xmlComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 64 [xmlComment, 4] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 65 [processingInstruction, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 65 [processingInstruction, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 65 [processingInstruction, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 66 [processingInstruction, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 66 [processingInstruction, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 66 [processingInstruction, 5] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 67 [processingInstruction, 9] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 67 [processingInstruction, 9] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 67 [processingInstruction, 9] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 68 [detachedTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 68 [detachedTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 68 [detachedTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 69 [detachedTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 69 [detachedTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 69 [detachedTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 70 [detachedForeignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 70 [detachedForeignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 70 [detachedForeignTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 71 [detachedForeignTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 71 [detachedForeignTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 71 [detachedForeignTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 72 [detachedXmlTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 72 [detachedXmlTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 72 [detachedXmlTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 73 [detachedXmlTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 73 [detachedXmlTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 73 [detachedXmlTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 74 [detachedProcessingInstruction, 12] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "whippoorwill" and data "chirp chirp chirp" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 74 [detachedProcessingInstruction, 12] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "whippoorwill" and data "chirp chirp chirp" but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 74 [detachedProcessingInstruction, 12] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 75 [detachedComment, 3] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 75 [detachedComment, 3] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 75 [detachedComment, 3] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 76 [detachedComment, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 76 [detachedComment, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 76 [detachedComment, 5] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 77 [detachedForeignComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 77 [detachedForeignComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 77 [detachedForeignComment, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 78 [detachedForeignComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 78 [detachedForeignComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 78 [detachedForeignComment, 4] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 79 [detachedXmlComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--בן חיים אליעזר--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 79 [detachedXmlComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--בן חיים אליעזר--> but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 79 [detachedXmlComment, 2] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 80 [docfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 80 [docfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 80 [docfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 81 [foreignDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 81 [foreignDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 81 [foreignDocfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 37 [document, 1, document, 2] and point 82 [xmlDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 37 [document, 1, document, 2] and point 82 [xmlDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Document node with 2 children
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 82 [xmlDocfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 37 [document, 1, document, 2] and point 83 [doctype, 0] 
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 83 [doctype, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() forwards with range 37 [document, 1, document, 2] and point 84 [doctype, -17] assert_throws: extend() to a doctype must throw InvalidNodeTypeError function "function () {
             selection.extend(node, offset);
         }" threw object "IndexSizeError: Failed to execute 'extend' on 'Selection': -17 is not a valid offset." that is not a DOMException INVALID_NODE_TYPE_ERR: property "code" is equal to 1, expected 24
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 84 [doctype, -17] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 37 [document, 1, document, 2] and point 85 [doctype, 1] 
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 85 [doctype, 1] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 37 [document, 1, document, 2] and point 86 [foreignDoctype, 0] 
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 86 [foreignDoctype, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 37 [document, 1, document, 2] and point 87 [xmlDoctype, 0] 
 FAIL extend() backwards with range 37 [document, 1, document, 2] and point 87 [xmlDoctype, 0] assert_equals: Sanity check: startContainer must be correct expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 38 [testDiv, 0, comment, 5] and point 0 [paras[0].firstChild, -1] 
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 0 [paras[0].firstChild, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 38 [testDiv, 0, comment, 5] and point 1 [paras[0].firstChild, 0] 
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 1 [paras[0].firstChild, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 1 [paras[0].firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 2 [paras[0].firstChild, 1] assert_equals: focusOffset must be the offset passed to extend() expected 1 but got 2
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 2 [paras[0].firstChild, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 2 [paras[0].firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 38 [testDiv, 0, comment, 5] and point 3 [paras[0].firstChild, 2] 
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 3 [paras[0].firstChild, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 3 [paras[0].firstChild, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 38 [testDiv, 0, comment, 5] and point 4 [paras[0].firstChild, 8] 
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 4 [paras[0].firstChild, 8] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 4 [paras[0].firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 5 [paras[0].firstChild, 9] assert_equals: focusOffset must be the offset passed to extend() expected 9 but got 10
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 5 [paras[0].firstChild, 9] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 5 [paras[0].firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-PASS extend() forwards with range 38 [testDiv, 0, comment, 5] and point 6 [paras[0].firstChild, 10] 
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 6 [paras[0].firstChild, 10] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 6 [paras[0].firstChild, 10] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 38 [testDiv, 0, comment, 5] and point 7 [paras[0].firstChild, 65535] 
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 7 [paras[0].firstChild, 65535] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 38 [testDiv, 0, comment, 5] and point 8 [paras[1].firstChild, -1] 
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 8 [paras[1].firstChild, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 9 [paras[1].firstChild, 0] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 9 [paras[1].firstChild, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 9 [paras[1].firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 10 [paras[1].firstChild, 1] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 10 [paras[1].firstChild, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 10 [paras[1].firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 11 [paras[1].firstChild, 2] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 11 [paras[1].firstChild, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 11 [paras[1].firstChild, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 12 [paras[1].firstChild, 8] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 12 [paras[1].firstChild, 8] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 12 [paras[1].firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 13 [paras[1].firstChild, 9] assert_equals: focusNode must be the node passed to extend() expected Text node "Ijklmnop
-" but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 13 [paras[1].firstChild, 9] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 13 [paras[1].firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 38 [testDiv, 0, comment, 5] and point 14 [paras[1].firstChild, 10] 
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 14 [paras[1].firstChild, 10] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 38 [testDiv, 0, comment, 5] and point 15 [paras[1].firstChild, 65535] 
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 15 [paras[1].firstChild, 65535] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 16 [detachedPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 16 [detachedPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 16 [detachedPara1.firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 17 [detachedPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 17 [detachedPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 17 [detachedPara1.firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 18 [detachedPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 18 [detachedPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Opqrstuv" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 18 [detachedPara1.firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 38 [testDiv, 0, comment, 5] and point 19 [detachedPara1.firstChild, 9] 
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 19 [detachedPara1.firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 20 [foreignPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 20 [foreignPara1.firstChild, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 20 [foreignPara1.firstChild, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 21 [foreignPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 21 [foreignPara1.firstChild, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 21 [foreignPara1.firstChild, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 22 [foreignPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 22 [foreignPara1.firstChild, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Efghijkl" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 22 [foreignPara1.firstChild, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 38 [testDiv, 0, comment, 5] and point 23 [foreignPara1.firstChild, 9] 
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 23 [foreignPara1.firstChild, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 38 [testDiv, 0, comment, 5] and point 24 [document.documentElement, -1] 
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 24 [document.documentElement, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 25 [document.documentElement, 0] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 25 [document.documentElement, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 25 [document.documentElement, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 26 [document.documentElement, 1] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 26 [document.documentElement, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 26 [document.documentElement, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 27 [document.documentElement, 2] assert_equals: focusNode must be the node passed to extend() expected Element node <html><head><title>Selection extend() tests</title>
-<meta... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 27 [document.documentElement, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 27 [document.documentElement, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 38 [testDiv, 0, comment, 5] and point 28 [document.documentElement, 7] 
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 28 [document.documentElement, 7] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 29 [document.head, 1] assert_equals: focusNode must be the node passed to extend() expected Element node <head><title>Selection extend() tests</title>
-<meta chars... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 29 [document.head, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 29 [document.head, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 30 [document.body, 3] assert_equals: focusNode must be the node passed to extend() expected Element node <body><div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 30 [document.body, 3] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 30 [document.body, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 31 [foreignDoc.documentElement, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 31 [foreignDoc.documentElement, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 31 [foreignDoc.documentElement, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 32 [foreignDoc.documentElement, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 32 [foreignDoc.documentElement, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <html><head><title></title></head><body><p>Efghijkl</p><p... but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 32 [foreignDoc.documentElement, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 33 [foreignDoc.head, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <head><title></title></head> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 33 [foreignDoc.head, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <head><title></title></head> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 33 [foreignDoc.head, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 34 [foreignDoc.body, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <body><p>Efghijkl</p><p>Mnopqrst</p>I admit that I harbor... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 34 [foreignDoc.body, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <body><p>Efghijkl</p><p>Mnopqrst</p>I admit that I harbor... but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 34 [foreignDoc.body, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 35 [paras[0], 0] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 35 [paras[0], 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 35 [paras[0], 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 36 [paras[0], 1] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 36 [paras[0], 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 36 [paras[0], 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 38 [testDiv, 0, comment, 5] and point 37 [paras[0], 2] 
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 37 [paras[0], 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 38 [paras[1], 0] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="b" style="display:none">Ijklmnop
-</p> but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 38 [paras[1], 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 38 [paras[1], 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 39 [paras[1], 1] assert_equals: focusNode must be the node passed to extend() expected Element node <p id="b" style="display:none">Ijklmnop
-</p> but got Element node <p id="c">Qrstuvwx</p>
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 39 [paras[1], 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 39 [paras[1], 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 38 [testDiv, 0, comment, 5] and point 40 [paras[1], 2] 
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 40 [paras[1], 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 41 [detachedPara1, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 41 [detachedPara1, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 41 [detachedPara1, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 42 [detachedPara1, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 42 [detachedPara1, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Element node <p>Opqrstuv</p> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 42 [detachedPara1, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 43 [testDiv, 0] assert_equals: focusNode must be the node passed to extend() expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 43 [testDiv, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 43 [testDiv, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 44 [testDiv, 3] assert_equals: focusNode must be the node passed to extend() expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
-</p><p id="b" s... but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 44 [testDiv, 3] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 44 [testDiv, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 38 [testDiv, 0, comment, 5] and point 45 [document, -1] 
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 45 [document, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 46 [document, 0] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 46 [document, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 46 [document, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 47 [document, 1] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 47 [document, 1] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 47 [document, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 48 [document, 2] assert_equals: focusNode must be the node passed to extend() expected Document node with 2 children but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 48 [document, 2] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 48 [document, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 38 [testDiv, 0, comment, 5] and point 49 [document, 3] 
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 49 [document, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 38 [testDiv, 0, comment, 5] and point 50 [comment, -1] 
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 50 [comment, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 51 [comment, 0] assert_equals: focusNode must be the node passed to extend() expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 51 [comment, 0] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 51 [comment, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 52 [comment, 4] assert_equals: focusNode must be the node passed to extend() expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 52 [comment, 4] assert_equals: anchorNode must not change if the node passed to extend() has the same root as the original range expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
+"
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 52 [comment, 4] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 38 [testDiv, 0, comment, 5] and point 53 [comment, 96] 
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 53 [comment, 96] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 54 [foreignDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 54 [foreignDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 54 [foreignDoc, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 55 [foreignDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 55 [foreignDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 3 children but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 55 [foreignDoc, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 56 [foreignComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--"Commenter" and "commentator" mean different things.  I'v...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 56 [foreignComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--"Commenter" and "commentator" mean different things.  I'v...--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 56 [foreignComment, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 57 [foreignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 57 [foreignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 57 [foreignTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 58 [foreignTextNode, 36] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 58 [foreignTextNode, 36] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "I admit that I harbor doubts about whether we really need..." but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 58 [foreignTextNode, 36] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 38 [testDiv, 0, comment, 5] and point 59 [xmlDoc, -1] 
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 59 [xmlDoc, -1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 60 [xmlDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 60 [xmlDoc, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 60 [xmlDoc, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 61 [xmlDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 61 [xmlDoc, 1] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Document node with 4 children but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 61 [xmlDoc, 1] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 38 [testDiv, 0, comment, 5] and point 62 [xmlDoc, 5] 
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 62 [xmlDoc, 5] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 63 [xmlComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 63 [xmlComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 63 [xmlComment, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 64 [xmlComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 64 [xmlComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--I maliciously created a comment that will break incautiou...--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 64 [xmlComment, 4] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 65 [processingInstruction, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 65 [processingInstruction, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 65 [processingInstruction, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 66 [processingInstruction, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 66 [processingInstruction, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 66 [processingInstruction, 5] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 67 [processingInstruction, 9] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 67 [processingInstruction, 9] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "somePI" and data "Did you know that \":syn sync fromstart\" is very useful wh..." but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 67 [processingInstruction, 9] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 68 [detachedTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 68 [detachedTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 68 [detachedTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 69 [detachedTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 69 [detachedTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Uvwxyzab" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 69 [detachedTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 70 [detachedForeignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 70 [detachedForeignTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 70 [detachedForeignTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 71 [detachedForeignTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 71 [detachedForeignTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Cdefghij" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 71 [detachedForeignTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 72 [detachedXmlTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 72 [detachedXmlTextNode, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 72 [detachedXmlTextNode, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 73 [detachedXmlTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 73 [detachedXmlTextNode, 8] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Text node "Klmnopqr" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 73 [detachedXmlTextNode, 8] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 74 [detachedProcessingInstruction, 12] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "whippoorwill" and data "chirp chirp chirp" but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 74 [detachedProcessingInstruction, 12] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected ProcessingInstruction node with target "whippoorwill" and data "chirp chirp chirp" but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 74 [detachedProcessingInstruction, 12] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 75 [detachedComment, 3] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 75 [detachedComment, 3] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 75 [detachedComment, 3] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 76 [detachedComment, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 76 [detachedComment, 5] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--Stuvwxyz--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 76 [detachedComment, 5] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 77 [detachedForeignComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 77 [detachedForeignComment, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 77 [detachedForeignComment, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 78 [detachedForeignComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 78 [detachedForeignComment, 4] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--אריה יהודה--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 78 [detachedForeignComment, 4] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 79 [detachedXmlComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--בן חיים אליעזר--> but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 79 [detachedXmlComment, 2] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected Comment node <!--בן חיים אליעזר--> but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 79 [detachedXmlComment, 2] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 80 [docfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 80 [docfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 80 [docfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 81 [foreignDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 81 [foreignDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 81 [foreignDocfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
-FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 82 [xmlDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
-"
+FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 82 [xmlDocfrag, 0] assert_equals: anchorNode must be the node passed to extend() if it has a different root from the original range expected DocumentFragment node with 0 children but got Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s...
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 82 [xmlDocfrag, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 PASS extend() forwards with range 38 [testDiv, 0, comment, 5] and point 83 [doctype, 0] 
 FAIL extend() backwards with range 38 [testDiv, 0, comment, 5] and point 83 [doctype, 0] assert_equals: Sanity check: startContainer must be correct expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Text node "Äb̈c̈d̈ëf̈g̈ḧ
 "
 FAIL extend() forwards with range 38 [testDiv, 0, comment, 5] and point 84 [doctype, -17] assert_throws: extend() to a doctype must throw InvalidNodeTypeError function "function () {
             selection.extend(node, offset);
         }" threw object "IndexSizeError: Failed to execute 'extend' on 'Selection': -17 is not a valid offset." that is not a DOMException INVALID_NODE_TYPE_ERR: property "code" is equal to 1, expected 24
@@ skipping 209 matching lines @@
         }" threw object "IndexSizeError: Failed to execute 'extend' on 'Selection': -17 is not a valid offset." that is not a DOMException INVALID_NODE_TYPE_ERR: property "code" is equal to 1, expected 24
 FAIL extend() backwards with range 39 [paras[2].firstChild, 4, comment, 2] and point 84 [doctype, -17] assert_equals: Sanity check: endContainer must be correct expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
 PASS extend() forwards with range 39 [paras[2].firstChild, 4, comment, 2] and point 85 [doctype, 1] 
 FAIL extend() backwards with range 39 [paras[2].firstChild, 4, comment, 2] and point 85 [doctype, 1] assert_equals: Sanity check: endContainer must be correct expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
 PASS extend() forwards with range 39 [paras[2].firstChild, 4, comment, 2] and point 86 [foreignDoctype, 0] 
 FAIL extend() backwards with range 39 [paras[2].firstChild, 4, comment, 2] and point 86 [foreignDoctype, 0] assert_equals: Sanity check: endContainer must be correct expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
 PASS extend() forwards with range 39 [paras[2].firstChild, 4, comment, 2] and point 87 [xmlDoctype, 0] 
 FAIL extend() backwards with range 39 [paras[2].firstChild, 4, comment, 2] and point 87 [xmlDoctype, 0] assert_equals: Sanity check: endContainer must be correct expected Comment node <!--Alphabet soup?--> but got Text node "Qrstuvwx"
 Harness: the test ran to completion.