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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/paint-timing/with-first-paint/first-image-child.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>
Diffstat (limited to 'testing/web-platform/tests/paint-timing/with-first-paint/first-image-child.html')
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diff --git a/testing/web-platform/tests/paint-timing/with-first-paint/first-image-child.html b/testing/web-platform/tests/paint-timing/with-first-paint/first-image-child.html
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+++ b/testing/web-platform/tests/paint-timing/with-first-paint/first-image-child.html
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+<!DOCTYPE html>
+<head>
+<title>Performance Paint Timing Test: child ignores parent FCP</title>
+<meta name="timeout" content="long">
+</head>
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<iframe src='../resources/subframe-sending-paint.html' id='child-iframe'></iframe>
+<img src='../resources/circles.png'/>
+<script>
+setup({"hide_test_state": true});
+async_test(function (t) {
+ assert_implements(window.PerformancePaintTiming, "Paint Timing isn't supported.");
+
+ window.addEventListener('message', t.step_func(e => {
+ // Child iframe should not have any paint-timing entries.
+ assert_equals(e.data, '0');
+ t.done();
+ }));
+ // Wait for onload to ensure img and iframe have loaded.
+ window.addEventListener('load', function() {
+ function testPaintEntries() {
+ const bufferedEntries = performance.getEntriesByType('paint');
+ if (bufferedEntries.length < 2) {
+ t.step_timeout(testPaintEntries, 20);
+ return;
+ }
+ t.step(function() {
+ assert_equals(bufferedEntries.length, 2, 'There should be two paint timing instances.');
+ assert_equals(bufferedEntries[0].entryType, 'paint');
+ assert_equals(bufferedEntries[0].name, 'first-paint');
+ assert_equals(bufferedEntries[1].entryType, 'paint');
+ assert_equals(bufferedEntries[1].name, 'first-contentful-paint');
+ // Ask child iframe to send its paint-timing entries.
+ document.getElementById('child-iframe').
+ contentWindow.postMessage('', '*');
+ })
+ }
+ testPaintEntries();
+ });
+}, 'Child iframe ignores paint-timing events fired from parent image rendering.');
+</script>
+</body>
+</html>