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| 1 <!DOCTYPE html> |
| 2 <script src="../../../resources/testharness.js"></script> |
| 3 <script src="../../../resources/testharnessreport.js"></script> |
| 4 <style> |
| 5 /* Dummy rule for increasing max-direct-adjacent */ |
| 6 .x + .x + .x + .x { color: red } |
| 7 |
| 8 span { color: green } |
| 9 .a + .d, .b + .c { color: red } |
| 10 </style> |
| 11 <div id="insertTest"> |
| 12 <span class="a"></span> |
| 13 <span class="b"></span> |
| 14 <span class="c"></span> |
| 15 <span class="d"></span> |
| 16 </div> |
| 17 <div id="removeTest"> |
| 18 <span class="a"></span> |
| 19 <span class="b"></span> |
| 20 <span class="c"></span> |
| 21 <span class="d"></span> |
| 22 </div> |
| 23 <script> |
| 24 test(() => |
| 25 assert_not_equals(window.internals, undefined, "Check that window.intern
als is defined.") |
| 26 , "window.internals required for tests."); |
| 27 |
| 28 test(() => { |
| 29 var c = insertTest.querySelector(".c"); |
| 30 assert_equals(getComputedStyle(c).color, "rgb(255, 0, 0)", "Check that .
c is initially red."); |
| 31 |
| 32 insertTest.insertBefore(document.createElement("span"), c); |
| 33 |
| 34 assert_equals(internals.updateStyleAndReturnAffectedElementCount(), 2, "
Recalc for the inserted element and .c."); |
| 35 assert_equals(getComputedStyle(c).color, "rgb(0, 128, 0)", "Check that .
c is green after insertion."); |
| 36 }, "Check that we don't invalidate too much on sibling insertion."); |
| 37 |
| 38 test(() => { |
| 39 var c = removeTest.querySelector(".c"); |
| 40 assert_equals(getComputedStyle(c).color, "rgb(255, 0, 0)", "Check that .
c is initially red."); |
| 41 |
| 42 removeTest.querySelector(".b").remove(); |
| 43 |
| 44 assert_equals(internals.updateStyleAndReturnAffectedElementCount(), 1, "
Recalc for .c."); |
| 45 assert_equals(getComputedStyle(c).color, "rgb(0, 128, 0)", "Check that .
c is green after .b is removed."); |
| 46 }, "Check that we don't invalidate too much on sibling removal."); |
| 47 </script> |
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