third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-gc.html

   1 <html>
   2 <script>
   3 function stateChange() {
   4     document.write(this.foo + '<br>');
   5     if (this.readyState == 4) {
   6         if (window.testRunner)
   7             testRunner.notifyDone();
   8     }
   9 }
  10
  11 function collectGarbage() {
  12     if (window.GCController) {
  13         window.GCController.collect();
  14     } else {
  15       for (var i = 0; i < 50000; i++)
  16           new Object();
  17     }
  18 }
  19
  20 function runTest() {
  21     document.write("Tests that garbage collection doesn't drop the XMLHttpRequest JS wrapper until the send command is done.  You should see 'bar' four times below.<br>");
  22
  23     if (window.testRunner) {
  24         testRunner.dumpAsText();
  25         testRunner.waitUntilDone();
  26     }
  27
  28     var xhr = new XMLHttpRequest();
  29     xhr.foo = 'bar';
  30     xhr.onreadystatechange = stateChange;
  31     xhr.open("GET", "xmlhttprequest-gc.html", true);
  32     xhr.send(null);
  33
  34     xhr = null;
  35     collectGarbage();
  36 }
  37
  38 </script>
  39 <body onload='runTest()'>
  40 </body>
  41 </html>