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<!DOCTYPE html>
<head>
<title>Performance Paint Timing Test: FCP due to loaded video poster</title>
</head>
<body>
<script src="../resources/utils.js"></script>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<video id="video" width="50" height="50"></video>
<script>
setup({"hide_test_state": true});
promise_test(async t => {
assert_implements(window.PerformancePaintTiming, "Paint Timing isn't supported.");
await new Promise(r => window.addEventListener('load', r));
await assertNoFirstContentfulPaint(t);
const video = document.getElementById('video');
const src = '../resources/circles.png';
const image = new Image();
image.src = src;
video.setAttribute('poster', src);
await new Promise(resolve => {
image.onload = async () => resolve();
})
await assertFirstContentfulPaint(t);
}, 'Video should become contentful when poster is loaded');
</script>
</body>
</html>
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