Make DOMSelection cache Range

third_party/WebKit/LayoutTests/external/wpt/dom/ranges/Range-mutations-appendChild-expected.txt

Index: third_party/WebKit/LayoutTests/external/wpt/dom/ranges/Range-mutations-appendChild-expected.txt
diff --git a/third_party/WebKit/LayoutTests/external/wpt/dom/ranges/Range-mutations-appendChild-expected.txt b/third_party/WebKit/LayoutTests/external/wpt/dom/ranges/Range-mutations-appendChild-expected.txt
index 310cc6df24cfefa8f381e5018cfe09458037ad4b..4e862fba97da2f5240b0edf472c9917a31f471fa 100644
--- a/third_party/WebKit/LayoutTests/external/wpt/dom/ranges/Range-mutations-appendChild-expected.txt
+++ b/third_party/WebKit/LayoutTests/external/wpt/dom/ranges/Range-mutations-appendChild-expected.txt
@@ -10,13 +10,16 @@ CONSOLE ERROR: line 126: The given range isn't in document.
 This is a testharness.js-based test.
 FAIL testDiv.appendChild(testDiv.lastChild), with unselected range collapsed at (testDiv.lastChild, 0) assert_equals: Wrong start container expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Comment node <!--Alphabet soup?-->
-PASS testDiv.appendChild(testDiv.lastChild), with selected range collapsed at (testDiv.lastChild, 0) 
+FAIL testDiv.appendChild(testDiv.lastChild), with selected range collapsed at (testDiv.lastChild, 0) assert_equals: Wrong start container expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ

[tkent, 2017/02/08 01:12:31]

PASS->FAIL changes in Range-mutations-appendChild.html and
Range-mutations-dataChange.html are expected.  I think it's ok to proceed this
CL without resolving them.

It seems we have an existing bug around Comment handling. Without this CL,
"selected range" tests are affected by the normalization, and they pass
accidentally.  With this CL, getRangeAt(0) correctly returns non-normalized
Range, and it expose the bug.
Note that the result of "selected range" test is now same as the result of
"unselected range". It's reasonable.

[tkent, 2017/02/08 01:47:03]

I found the root cause of the bug.  Will fix.

+</p><p id="b" s... but got Comment node <!--Alphabet soup?-->
 FAIL testDiv.appendChild(testDiv.lastChild), with unselected range on testDiv.lastChild from 0 to 1 assert_equals: Wrong start container expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Comment node <!--Alphabet soup?-->
-FAIL testDiv.appendChild(testDiv.lastChild), with selected range on testDiv.lastChild from 0 to 1 assert_equals: Wrong end offset expected 5 but got 6
+FAIL testDiv.appendChild(testDiv.lastChild), with selected range on testDiv.lastChild from 0 to 1 assert_equals: Wrong start container expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Comment node <!--Alphabet soup?-->
 FAIL testDiv.appendChild(testDiv.lastChild), with unselected range collapsed at (testDiv.lastChild, 1) assert_equals: Wrong start container expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
 </p><p id="b" s... but got Comment node <!--Alphabet soup?-->
-FAIL testDiv.appendChild(testDiv.lastChild), with selected range collapsed at (testDiv.lastChild, 1) assert_equals: Wrong start offset expected 5 but got 6
+FAIL testDiv.appendChild(testDiv.lastChild), with selected range collapsed at (testDiv.lastChild, 1) assert_equals: Wrong start container expected Element node <div id="test"><p id="a">Äb̈c̈d̈ëf̈g̈ḧ
+</p><p id="b" s... but got Comment node <!--Alphabet soup?-->
 FAIL testDiv.appendChild(testDiv.lastChild), with unselected range on testDiv from testDiv.childNodes.length - 2 to testDiv.childNodes.length assert_equals: Wrong end offset expected 5 but got 6
 FAIL testDiv.appendChild(testDiv.lastChild), with selected range on testDiv from testDiv.childNodes.length - 2 to testDiv.childNodes.length assert_equals: Wrong end offset expected 5 but got 6
 PASS testDiv.appendChild(testDiv.lastChild), with unselected range on testDiv from testDiv.childNodes.length - 2 to testDiv.childNodes.length - 1