src/third_party/WebKit/LayoutTests/fast/dom/StyleSheet/gc-parent-stylesheet.html

   1 <html>
   2 <head>
   3 <script src="../../../resources/js-test.js"></script>
   4 </head>
   5 <body onload="test()">
   6 <script>
   7 window.jsTestIsAsync = true;
   8 description("Test that CSS stylesheets don't lose custom properties on GC when only reachable through child rules.");
   9
  10 function test()
  11 {
  12     var sheet = document.implementation.createCSSStyleSheet("title", "screen");
  13     sheet.foo = "0";
  14     sheet.insertRule("div { color:black }", 0);
  15     rule = sheet.rules[0];
  16     sheet = null;
  17
  18     gc();
  19     setTimeout(function() {
  20         gc();
  21         shouldBe('rule.parentStyleSheet.foo', '"0"');
  22         finishJSTest();
  23     }, 0);
  24 }
  25 </script>
  26 <foo id="mystyle" style="display:none">.div { color: white; }</foo>
  27 </body>
  28 </html>