LayoutTests/fast/events/AddEventListenerOptions-once-recursive.html - WebKit - Git at Google

 <!DOCTYPE html>
 <html>
 <body>
 <script src="../../resources/js-test-pre.js"></script>
 <script>
 description("Tests support for 'once' member in AddEventListenerOptions.");

 var listenerCallCount = 0;
 function listenerFunction()
 {
     ++listenerCallCount;

     if (listenerCallCount == 1)
         document.body.dispatchEvent(new Event('test'));
 }

 evalAndLog("document.body.addEventListener('test', listenerFunction, { 'once': true })");
 shouldBe("listenerCallCount", "0");
 evalAndLog("document.body.dispatchEvent(new Event('test'))");
 shouldBe("listenerCallCount", "1");
 evalAndLog("document.body.dispatchEvent(new Event('test'))");
 shouldBe("listenerCallCount", "1");

 </script>
 <script src="../../resources/js-test-post.js"></script>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<body>
	<script src="../../resources/js-test-pre.js"></script>
	<script>
	description("Tests support for 'once' member in AddEventListenerOptions.");

	var listenerCallCount = 0;
	function listenerFunction()
	{
	++listenerCallCount;

	if (listenerCallCount == 1)
	document.body.dispatchEvent(new Event('test'));
	}

	evalAndLog("document.body.addEventListener('test', listenerFunction, { 'once': true })");
	shouldBe("listenerCallCount", "0");
	evalAndLog("document.body.dispatchEvent(new Event('test'))");
	shouldBe("listenerCallCount", "1");
	evalAndLog("document.body.dispatchEvent(new Event('test'))");
	shouldBe("listenerCallCount", "1");

	</script>
	<script src="../../resources/js-test-post.js"></script>
	</body>
	</html>