LayoutTests/webanimations/leak-document-with-web-animation.html - WebKit - Git at Google

 <!DOCTYPE html>
 <html>
 <body onload="runTest()">
 <script src="../resources/js-test.js"></script>
 <script src="../resources/gc.js"></script>
 <script>
 description("This test asserts that Document doesn't leak when a Web Animation is created.");

 if (window.internals) {
     jsTestIsAsync = true;

     window.onload = function () {
         testDocumentIsNotLeaked(
             async function initAndRemove(frameCount)
             {
                 let frames = await new Promise((resolve, reject) => {
                     let frames = [];
                     let counter = 0;
                     function onLoad() {
                         counter++;
                         if (counter == frameCount)
                             resolve(frames);
                     }
                     for (let i = 0; i < frameCount; ++i) {
                         let frame = document.createElement('iframe');
                         frame.src = "resources/web-animation-leak-iframe.html";
                         frame.onload = onLoad;
                         document.body.appendChild(frame);
                         frames.push(frame);
                     }
                 });
                 debug("The iframe has finished loading.");
                 let frameIdentifiers = [];
                 for (let i = 0; i < frameCount; ++i) {
                     let frame = frames[i];
                     frameIdentifiers.push(internals.documentIdentifier(frame.contentDocument));
                     frame.remove();
                 }
                 nukeArray(frames);
                 frames = null;
                 return frameIdentifiers;
             }
         ).then(
             () => testPassed("The document was destroyed"),
             (error) => testFailed(error.message)
         ).finally(finishJSTest);
     };
 }

 </script>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<body onload="runTest()">
	<script src="../resources/js-test.js"></script>
	<script src="../resources/gc.js"></script>
	<script>
	description("This test asserts that Document doesn't leak when a Web Animation is created.");

	if (window.internals) {
	jsTestIsAsync = true;

	window.onload = function () {
	testDocumentIsNotLeaked(
	async function initAndRemove(frameCount)
	{
	let frames = await new Promise((resolve, reject) => {
	let frames = [];
	let counter = 0;
	function onLoad() {
	counter++;
	if (counter == frameCount)
	resolve(frames);
	}
	for (let i = 0; i < frameCount; ++i) {
	let frame = document.createElement('iframe');
	frame.src = "resources/web-animation-leak-iframe.html";
	frame.onload = onLoad;
	document.body.appendChild(frame);
	frames.push(frame);
	}
	});
	debug("The iframe has finished loading.");
	let frameIdentifiers = [];
	for (let i = 0; i < frameCount; ++i) {
	let frame = frames[i];
	frameIdentifiers.push(internals.documentIdentifier(frame.contentDocument));
	frame.remove();
	}
	nukeArray(frames);
	frames = null;
	return frameIdentifiers;
	}
	).then(
	() => testPassed("The document was destroyed"),
	(error) => testFailed(error.message)
	).finally(finishJSTest);
	};
	}

	</script>
	</body>
	</html>