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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /testing/web-platform/tests/largest-contentful-paint/expanded-image.html
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/largest-contentful-paint/expanded-image.html')
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diff --git a/testing/web-platform/tests/largest-contentful-paint/expanded-image.html b/testing/web-platform/tests/largest-contentful-paint/expanded-image.html
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+++ b/testing/web-platform/tests/largest-contentful-paint/expanded-image.html
@@ -0,0 +1,33 @@
+<!DOCTYPE HTML>
+<meta charset=utf-8>
+<title>Largest Contentful Paint: expanded image bounded by intrinsic size.</title>
+<style type="text/css">
+ #image_id {
+ width: 300px;
+ height: 300px;
+ }
+</style>
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="resources/largest-contentful-paint-helpers.js"></script>
+<script>
+ setup({"hide_test_state": true});
+ async_test(function (t) {
+ assert_implements(window.LargestContentfulPaint, "LargestContentfulPaint is not implemented");
+ const beforeLoad = performance.now();
+ const observer = new PerformanceObserver(
+ t.step_func_done(function(entryList) {
+ assert_equals(entryList.getEntries().length, 1);
+ const entry = entryList.getEntries()[0];
+ const url = window.location.origin + '/images/black-rectangle.png';
+ // black-rectangle.png is 100 x 50. It occupies 300 x 300 so size will be bounded by the intrinsic size.
+ const size = 100 * 50;
+ checkImage(entry, url, 'image_id', size, beforeLoad);
+ })
+ );
+ observer.observe({type: 'largest-contentful-paint', buffered: true});
+ }, 'Largest Contentful Paint: |size| attribute is bounded by intrinsic size.');
+</script>
+<img src='/images/black-rectangle.png' id='image_id'/>
+</body>