third_party/WebKit/LayoutTests/fast/css/modify-cached-detached-sheet-2.html - Issue 2205843003: Use weak members to cache StyleSheetContents.

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Side by Side Diff: third_party/WebKit/LayoutTests/fast/css/modify-cached-detached-sheet-2.html

Issue 2205843003: Use weak members to cache StyleSheetContents. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Might be in cache without being used before garbage collection Created 4 years, 4 months ago

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	1 <!DOCTYPE html>

	2 <script src="../../resources/testharness.js"></script>

	3 <script src="../../resources/testharnessreport.js"></script>

	4 <style>div{}</style>

	5 <style>div{}</style>

	6 <script>

	7 var sheet1 = document.styleSheets[0];

	8 var sheet2 = document.styleSheets[1];

	9

	10 test(() => {

	11 sheet1.ownerNode.remove();

	12 assert_equals(sheet1.cssRules.length, 1, "sheet1 should have length 1.") ;

	13 assert_equals(sheet2.cssRules.length, 1, "sheet2 should have length 1.") ;

	14 }, "Precondition: both sheets should have length 1 after sheet1 is detached. ");

	15

	16 test(() => {

	17 sheet2.insertRule("span{}", 0);

	18 assert_equals(sheet2.cssRules.length, 2, "sheet2 should have length 2 af ter insertRule.");

	19 assert_equals(sheet1.cssRules.length, 1, "sheet1 should still have lengt h 1.");

	20 }, "Check cssRules length after insertRule.");

	21 </script>

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