LayoutTests/fast/workers/worker-gc.html - WebKit - Git at Google

 <body>
 <p>Test worker garbage collection. Should print "SUCCESS".</p>
 <div id=result></div>
 <script>
 function log(message)
 {
     document.getElementById("result").innerHTML += message + "<br>";
 }

 function gc()
 {
     if (window.GCController)
         return GCController.collect();

     for (var i = 0; i < 10000; i++) { // > force garbage collection (FF requires about 9K allocations before a collect)
         var s = new String("abc");
     }
 }

 if (window.testRunner) {
     testRunner.dumpAsText();
     testRunner.waitUntilDone();
 }

 var interval = setInterval(gc, 0);

 var worker = new Worker('resources/worker-common.js');
 worker.postMessage("ping");
 worker.onmessage = function(evt) {
     this.postMessage("ping");
     this.onmessage = function() {
         log("SUCCESS");
         clearInterval(interval);
         if (window.testRunner)
             testRunner.notifyDone();
     }

 }
 worker = 0;
 gc();
 </script>
 </body>
 </html>
	<body>
	<p>Test worker garbage collection. Should print "SUCCESS".</p>
	<div id=result></div>
	<script>
	function log(message)
	{
	document.getElementById("result").innerHTML += message + "<br>";
	}

	function gc()
	{
	if (window.GCController)
	return GCController.collect();

	for (var i = 0; i < 10000; i++) { // > force garbage collection (FF requires about 9K allocations before a collect)
	var s = new String("abc");
	}
	}

	if (window.testRunner) {
	testRunner.dumpAsText();
	testRunner.waitUntilDone();
	}

	var interval = setInterval(gc, 0);

	var worker = new Worker('resources/worker-common.js');
	worker.postMessage("ping");
	worker.onmessage = function(evt) {
	this.postMessage("ping");
	this.onmessage = function() {
	log("SUCCESS");
	clearInterval(interval);
	if (window.testRunner)
	testRunner.notifyDone();
	}

	}
	worker = 0;
	gc();
	</script>
	</body>
	</html>