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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:47:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:47:29 +0000
commit0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch)
treea31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /testing/web-platform/tests/largest-contentful-paint/non-tao-image-subsequent-lcp-candidate.tentative.html
parentInitial commit. (diff)
downloadfirefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz
firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+<!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>