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| -rw-r--r-- | testing/web-platform/tests/largest-contentful-paint/non-tao-image-subsequent-lcp-candidate.tentative.html | 49 |
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diff --git a/testing/web-platform/tests/largest-contentful-paint/non-tao-image-subsequent-lcp-candidate.tentative.html b/testing/web-platform/tests/largest-contentful-paint/non-tao-image-subsequent-lcp-candidate.tentative.html new file mode 100644 index 0000000000..50f9a229ea --- /dev/null +++ b/testing/web-platform/tests/largest-contentful-paint/non-tao-image-subsequent-lcp-candidate.tentative.html @@ -0,0 +1,49 @@ +<!DOCTYPE HTML> +<meta charset=utf-8> +<title>Non-Tao Image Subsequent LCP candidates. +</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="resources/largest-contentful-paint-helpers.js"></script> +<script src="/common/get-host-info.sub.js"></script> + +<body> + <script> + promise_test(async t => { + let small_image_path = '/images/green-100x50.png'; + let big_image_path = '/images/green-256x256.png'; + let non_tao_scheme = get_host_info().OTHER_ORIGIN; + + // Load non-tao image with 0 opacity so it won't trigger an LCP entry. + big_image = await loadImage(non_tao_scheme + big_image_path, true); + + // Load a smaller non-tao image with 0 opacity. + small_image = await loadImage(non_tao_scheme + small_image_path, true); + + // Add text so that FCP is set. + add_text('text'); + + // wait for 1 animation frame so that FCP is set. + await raf(); + + // The url of text LCP element is empty. + lcp = await getLCPStartTime(''); + + // Rendered loaded image after FCP. + small_image.style.opacity = 1; + lcp = await getLCPStartTime(small_image_path); + + fcp = getFCPStartTime(); + + checkLCPEntryForNonTaoImages({ 'lcp': lcp, 'fcp': fcp }); + + // This is to verify subsequent LCP candidates also have the start time set correctly. + big_image.style.opacity = 1; + + lcp = await getLCPStartTime(big_image_path); + + checkLCPEntryForNonTaoImages({ 'lcp': lcp, 'fcp': fcp }); + + }, 'Non-Tao Image Subsequent LCP candidates.') + </script> +</body> |