45 lines
1.0 KiB
HTML
45 lines
1.0 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<script src="../../resources/js-test-pre.js"></script>
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</head>
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<body>
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<span id="e"></span>
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<span id="f"></span>
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<script>
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jsTestIsAsync = true;
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description("Tests the timestamps provided to requestAnimationFrame callbacks advance");
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function busyWait(millis) {
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var start = Date.now();
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while (Date.now()-start < millis) {}
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}
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var firstTimestamp = undefined;
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var secondTimestamp = undefined;
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window.requestAnimationFrame(function(timestamp) {
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firstTimestamp = timestamp;
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shouldBeDefined("firstTimestamp");
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window.requestAnimationFrame(function(timestamp) {
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secondTimestamp = timestamp;
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shouldBeDefined("secondTimestamp");
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shouldBeTrue("secondTimestamp > firstTimestamp");
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finishJSTest();
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});
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busyWait(10);
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if (window.testRunner)
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testRunner.displayAndTrackRepaints();
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});
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if (window.testRunner)
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window.setTimeout(function() {
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testRunner.displayAndTrackRepaints();
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});
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</script>
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<script src="../../resources/js-test-post.js"></script>
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</body>
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</html>
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