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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
commit43a97878ce14b72f0981164f87f2e35e14151312 (patch)
tree620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/largest-contentful-paint/non-tao-image-load-before-fcp-render-after.tentative.html
parentInitial commit. (diff)
downloadfirefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz
firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+++ b/testing/web-platform/tests/largest-contentful-paint/non-tao-image-load-before-fcp-render-after.tentative.html
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+<!DOCTYPE HTML>
+<meta charset=utf-8>
+<title>Non-Tao Image Load Before FCP and Render After FCP.
+</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 => {
+ const non_tao_image_url = get_host_info().OTHER_ORIGIN + '/images/blue.png';
+
+ img = await loadImage(non_tao_image_url, true);
+
+ // Add text so that FCP is set and image rendering time would be larger than FCP.
+ add_text('Add to set FCP');
+
+ // wait for 1 animation frame so that FCP is set.
+ await raf();
+
+ // Pass empty string to select the LCP entry corresponding to the text as LCP.url is
+ // empty for text elements.
+ lcp = await getLCPStartTime('');
+
+ img.style.opacity = 1;
+
+ lcp = await getLCPStartTime('blue.png');
+
+ fcp = getFCPStartTime();
+
+ checkLCPEntryForNonTaoImages({ 'lcp': lcp, 'fcp': fcp });
+ }, 'Non-Tao Image Load Before FCP and Render After FCP.')
+ </script>
+</body>