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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /testing/web-platform/tests/largest-contentful-paint/contracted-image.html
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/largest-contentful-paint/contracted-image.html')
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diff --git a/testing/web-platform/tests/largest-contentful-paint/contracted-image.html b/testing/web-platform/tests/largest-contentful-paint/contracted-image.html
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+++ b/testing/web-platform/tests/largest-contentful-paint/contracted-image.html
@@ -0,0 +1,32 @@
+<!DOCTYPE HTML>
+<meta charset=utf-8>
+<title>Largest Contentful Paint: contracted image bounded by display size.</title>
+<style type="text/css">
+ #image_id {
+ width: 50px;
+ height: 50px;
+ }
+</style>
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="resources/largest-contentful-paint-helpers.js"></script>
+<script>
+ 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 50 x 50 so size will be bounded by the displayed size.
+ const size = 50 * 50;
+ checkImage(entry, url, 'image_id', size, beforeLoad);
+ })
+ );
+ observer.observe({type: 'largest-contentful-paint', buffered: true});
+ }, 'Largest Contentful Paint: |size| attribute is bounded by display size.');
+</script>
+<img src='/images/black-rectangle.png' id='image_id'/>
+</body>