68 lines
1.6 KiB
HTML
68 lines
1.6 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=569520
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-->
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<head>
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<title>Test for Bug 569520</title>
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<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
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</head>
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<body>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=569520">Mozilla Bug 569520</a>
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<p id="display"></p>
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<div id="content" style="display: none">
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</div>
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<pre id="test">
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<script type="application/javascript">
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/** Test for Bug 569520 **/
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SimpleTest.waitForExplicitFinish();
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SimpleTest.requestFlakyTimeout("untriaged");
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var start = window.performance.now();
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var firstListenerArg;
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var secondListenerArg;
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var thirdListenerTime;
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// callback arg is in the same timeline as performance.now()
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function thirdListener(t) {
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thirdListenerTime = t;
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ok(secondListenerArg >= firstListenerArg, // callback args from consecutive requestAnimationFrame
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"Second listener should fire after first listener");
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ok(thirdListenerTime >= secondListenerArg,
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"Third listener should fire after second listener");
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ok(firstListenerArg >= start, "First listener should fire after start");
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SimpleTest.finish();
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}
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// callback arg is from requestAnimationFrame and comparable to performance.now()
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function secondListener(t) {
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secondListenerArg = t;
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requestAnimationFrame(thirdListener);
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}
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function firstListener(t) {
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firstListenerArg = t;
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requestAnimationFrame(secondListener);
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}
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addLoadEvent(function() {
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setTimeout(function() {
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requestAnimationFrame(firstListener);
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}, 100);
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});
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</script>
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</pre>
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</body>
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</html>
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