28 lines
1.2 KiB
HTML
28 lines
1.2 KiB
HTML
<!DOCTYPE HTML>
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<meta charset=utf-8>
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<title>Element Timing: entry does not change its id or identifier value</title>
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<body>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="resources/element-timing-helpers.js"></script>
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<p elementtiming='my_identifier' id='my_id'>Text</p>
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<script>
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async_test(function (t) {
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assert_implements(window.PerformanceElementTiming, "PerformanceElementTiming is not implemented");
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const observer = new PerformanceObserver(
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t.step_func_done(function(entryList) {
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assert_equals(entryList.getEntries().length, 1);
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const entry = entryList.getEntries()[0];
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assert_equals(entry.id, 'my_id');
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assert_equals(entry.identifier, 'my_identifier');
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const element = document.getElementById('my_id');
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element.id = 'other_id';
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element.setAttribute('elementtiming', 'other_identifier');
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assert_equals(entry.id, 'my_id');
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assert_equals(entry.identifier, 'my_identifier');
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})
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);
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observer.observe({type: 'element', buffered: true});
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}, 'PerformanceElementTiming id and identifier do not change when Element changes.');
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</script>
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</body>
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