third_party/WebKit/LayoutTests/fast/workers/shared-worker-gc.html

   1 <body>
   2 <p>Test shared worker garbage collection. Should print "PASS" followed by "DONE".</p>
   3 <div id=result></div>
   4 <script>
   5 function log(message)
   6 {
   7     document.getElementById("result").innerHTML += message + "<br>";
   8 }
   9
  10 function gc()
  11 {
  12     if (window.GCController)
  13         return GCController.collect();
  14
  15     for (var i = 0; i < 10000; i++) { // force garbage collection (FF requires about 9K allocations before a collect)
  16         var s = new String("abc");
  17     }
  18 }
  19
  20 if (window.testRunner) {
  21     testRunner.dumpAsText();
  22     testRunner.waitUntilDone();
  23 }
  24
  25 var worker = new SharedWorker('resources/shared-worker-common.js', 'name');
  26 worker.port.onmessage = handleMessage;
  27 worker.port.postMessage("ping");
  28 worker = 0;
  29 gc();
  30
  31 function handleMessage(event) {
  32     log(event.data);
  33     log("DONE");
  34     if (window.testRunner)
  35         testRunner.notifyDone();
  36 };
  37 </script>
  38 </body>