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

 <body>
 <p>Test that worker object is not garbage collected if there is a message from
 worker context. Should print "SUCCESS".
 <a href="https://bugs.webkit.org/show_bug.cgi?id=62446">Bug 62446</a></p>
 <div id=result></div>
 <script>
 function log(message)
 {
     document.getElementById("result").innerHTML += message + "<br>";
 }

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

     var head;
     for (var i = 0; i < 10000; i++) {
         var newHead = new Array(1000);
         newHead[0] = head;
         head = newHead;
     }
 }

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

 var interval = setInterval(gc, 0);

 var worker = new Worker('resources/worker-init.js');
 worker.onmessage = function(evt) {
     log(evt.data);
     clearInterval(interval);
     if (window.layoutTestController)
         layoutTestController.notifyDone();
 }
 worker = 0;
 gc();
 </script>
 </body>
 </html>
	<body>
	<p>Test that worker object is not garbage collected if there is a message from
	worker context. Should print "SUCCESS".
	<a href="https://bugs.webkit.org/show_bug.cgi?id=62446">Bug 62446</a></p>
	<div id=result></div>
	<script>
	function log(message)
	{
	document.getElementById("result").innerHTML += message + "<br>";
	}

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

	var head;
	for (var i = 0; i < 10000; i++) {
	var newHead = new Array(1000);
	newHead[0] = head;
	head = newHead;
	}
	}

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

	var interval = setInterval(gc, 0);

	var worker = new Worker('resources/worker-init.js');
	worker.onmessage = function(evt) {
	log(evt.data);
	clearInterval(interval);
	if (window.layoutTestController)
	layoutTestController.notifyDone();
	}
	worker = 0;
	gc();
	</script>
	</body>
	</html>