27 lines
1 KiB
HTML
27 lines
1 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<meta charset=utf-8>
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<title>Largest Contentful Paint: observe image.</title>
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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/largest-contentful-paint-helpers.js"></script>
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</head>
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<body>
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<script>
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promise_test(async () => {
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assert_implements(window.LargestContentfulPaint,
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"LargestContentfulPaint is not implemented");
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const beforeLoad = performance.now();
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// 262 is the size of the animated PNG up until the first frame,
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// including the chunk that starts the second frame (indicating that
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//the first frame data is done).
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const url = window.location.origin + '/images/blue.png';
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const entry = await load_and_observe(url);
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// blue.png is 133 by 106.
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const size = 133 * 106;
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checkImage(entry, url, 'image_id', size, beforeLoad, ["animated-zero"]);
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}, "Same origin animated image is observable and has a first frame.");
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</script>
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</body>
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</html>
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