22 lines
887 B
HTML
22 lines
887 B
HTML
<!DOCTYPE HTML>
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<meta charset=utf-8>
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<title>Long Animation Frame Timing: paint mixin</title>
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<meta name="timeout" content="long">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="resources/utils.js"></script>
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<body>
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<h1>Long Animation Frame: paint mixin</h1>
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<div id="log"></div>
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<script>
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promise_test(async t => {
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assert_implements("paintTime" in window.PerformanceLongAnimationFrameTiming.prototype, "PerformanceLongAnimationFrameTiming doesn't expose `paintTime`");
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document.querySelector("#log").innerText = "Text";
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const entry = await generate_long_animation_frame();
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assert_equals(entry.paintTime, entry.startTime + entry.duration);
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assert_greater_than(entry.presentationTime, entry.paintTime);
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}, 'A LoAF that generates a frame should have paintTime/presentationTime');
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</script>
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</body>
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