LayoutTests/fast/dom/timer-throttling-hidden-page-non-nested.html - WebKit - Git at Google

 <html>
 <head>
     <script src="../../resources/js-test-pre.js"></script>
     <script>
         description('Tests that DOM timers on hidden pages that have not reached max nesting level are not throttled.');
         jsTestIsAsync = true;

         let timerCount = 0;
         let isPageVisible = true;
         const timeoutInterval = 10;
         let timerHandle = 0;
         const maxNestingLevel = 5;

         function testTimer()
         {
             timerCount++;

             timerHandle = setTimeout(testTimer, timeoutInterval);
             shouldBeFalse("internals.isTimerThrottled(timerHandle)");

             if (timerCount == 1) {
                 testRunner.setPageVisibility("hidden");
                 isPageVisible = false;
             } else if (timerCount == maxNestingLevel - 1) {
                 testRunner.resetPageVisibility();
                 clearTimeout(timerHandle);
                 finishJSTest();
                 return;
             }
         }

         function runTest()
         {
             if (!window.testRunner) {
                 debug('This test requires testRunner');
                 return;
             }
             testRunner.overridePreference("WebKitHiddenPageDOMTimerThrottlingEnabled", 1);

             timerHandle = setTimeout(testTimer, timeoutInterval);
             shouldBeFalse("internals.isTimerThrottled(timerHandle)");
         }
     </script>
 </head>
 <body onload="runTest()">
     <script src="../../resources/js-test-post.js"></script>
 </body>
 </html>
	<html>
	<head>
	<script src="../../resources/js-test-pre.js"></script>
	<script>
	description('Tests that DOM timers on hidden pages that have not reached max nesting level are not throttled.');
	jsTestIsAsync = true;

	let timerCount = 0;
	let isPageVisible = true;
	const timeoutInterval = 10;
	let timerHandle = 0;
	const maxNestingLevel = 5;

	function testTimer()
	{
	timerCount++;

	timerHandle = setTimeout(testTimer, timeoutInterval);
	shouldBeFalse("internals.isTimerThrottled(timerHandle)");

	if (timerCount == 1) {
	testRunner.setPageVisibility("hidden");
	isPageVisible = false;
	} else if (timerCount == maxNestingLevel - 1) {
	testRunner.resetPageVisibility();
	clearTimeout(timerHandle);
	finishJSTest();
	return;
	}
	}

	function runTest()
	{
	if (!window.testRunner) {
	debug('This test requires testRunner');
	return;
	}
	testRunner.overridePreference("WebKitHiddenPageDOMTimerThrottlingEnabled", 1);

	timerHandle = setTimeout(testTimer, timeoutInterval);
	shouldBeFalse("internals.isTimerThrottled(timerHandle)");
	}
	</script>
	</head>
	<body onload="runTest()">
	<script src="../../resources/js-test-post.js"></script>
	</body>
	</html>