third_party/WebKit/LayoutTests/fast/dom/gc-4.html

   1 <html>
   2 <head>
   3 <meta http-equiv="content-type" content="text/html; charset=utf-8">
   4 <script type='text/javascript' charset='utf-8'>
   5 function print(message) {
   6         var paragraph = document.createElement("p");
   7         paragraph.appendChild(document.createTextNode(message));
   8         document.getElementById("console").appendChild(paragraph);
   9 }
  10
  11 function test() {
  12         if (window.testRunner) {
  13                 testRunner.dumpAsText();
  14         }
  15
  16         for (x = 0; x < 1000; x++) {
  17                 var canvas = document.getElementById("canvas");
  18                 var context = canvas.getContext("2d");
  19                 context.save();
  20         }
  21
  22         print("passed");
  23 }
  24 </script>
  25 </head>
  26 <body onload="test();">
  27 <p>This test checks for a regression against <i>rdar://problem/4152454 crash in KJS::ExprStatementNode::execute(KJS::ExecState*) in World Clock widget with TOT</i>. The original bug occurred because some objects did not properly mark themselves, and so the garbage collector prematurely destroyed them.</p>
  28 <p>If the test passes, you will see the word "passed" below. Otherwise, it will crash.</p>
  29 <hr>
  30 <canvas id='canvas' width='172' height='172'></canvas>
  31 <div id='console'/>
  32 </body>
  33 </html>