49 lines
1.6 KiB
HTML
49 lines
1.6 KiB
HTML
<!DOCTYPE HTML>
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<meta charset=utf-8>
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<title>Non-Tao Image Subsequent LCP candidates.
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</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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<script src="/common/get-host-info.sub.js"></script>
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<body>
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<script>
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promise_test(async t => {
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let small_image_path = '/images/lcp-100x50.png';
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let big_image_path = '/images/lcp-256x256.png';
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let non_tao_scheme = get_host_info().OTHER_ORIGIN;
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// Load non-tao image with 0 opacity so it won't trigger an LCP entry.
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big_image = await loadImage(non_tao_scheme + big_image_path, true);
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// Load a smaller non-tao image with 0 opacity.
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small_image = await loadImage(non_tao_scheme + small_image_path, true);
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// Add text so that FCP is set.
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add_text('text');
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// wait for 1 animation frame so that FCP is set.
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await raf();
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// The url of text LCP element is empty.
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lcp = await getLCPStartTime('');
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// Rendered loaded image after FCP.
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small_image.style.opacity = 1;
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lcp = await getLCPStartTime(small_image_path);
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fcp = getFCPStartTime();
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checkLCPEntryForNonTaoImages({ 'lcp': lcp, 'fcp': fcp });
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// This is to verify subsequent LCP candidates also have the start time set correctly.
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big_image.style.opacity = 1;
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lcp = await getLCPStartTime(big_image_path);
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checkLCPEntryForNonTaoImages({ 'lcp': lcp, 'fcp': fcp });
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}, 'Non-Tao Image Subsequent LCP candidates.')
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</script>
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</body>
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