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Automatic update from web-platform-tests Align resource timing buffer full processing to spec PR 168 (take 3) This change implements the processing model from PR 168[1], when it comes to setResourceTimingBufferSize(), clearResourceTimings() and the firing of the resourcetimingbufferfull event. This is a reland of [2] which is a reland of [3] (but with nicer tests). [1] https://github.com/w3c/resource-timing/pull/168 [2] https://chromium-review.googlesource.com/c/chromium/src/+/1350950 [3] https://chromium-review.googlesource.com/c/chromium/src/+/1345269 Bug: 908181, 908414 Change-Id: I3a6c6e9d6a9aa5b5f907d1e86bec701ff2fa022d Reviewed-on: https://chromium-review.googlesource.com/c/1373819 Reviewed-by: Nicolás Peña Moreno <npm@chromium.org> Commit-Queue: Yoav Weiss <yoavweiss@chromium.org> Cr-Commit-Position: refs/heads/master@{#615929} -- wpt-commits: 79001b1d0d4a111b7f44608404d7b5504d755a1c wpt-pr: 14479
46 lines
1.7 KiB
HTML
46 lines
1.7 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<meta charset="utf-8" />
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<link rel="author" title="Intel" href="http://www.intel.com/" />
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<link rel="help" href="http://www.w3.org/TR/resource-timing/#performanceresourcetiming"/>
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<title>This test validates the functionality of onresourcetimingbufferfull in resource timing.</title>
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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/buffer-full-utilities.js"></script>
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</head>
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<body>
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<script>
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const resource_timing_buffer_size = 2;
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let bufferFullCount = 0;
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let eventFired = false;
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setup(() => {
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clearBufferAndSetSize(resource_timing_buffer_size);
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performance.addEventListener('resourcetimingbufferfull', e => {
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assert_equals(e.bubbles, false, "Event bubbles attribute is false");
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bufferFullCount++;
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eventFired = true;
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});
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});
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let overflowTheBuffer = () => {
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return new Promise(resolve => {
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// This resource overflows the entry buffer, and goes into the secondary buffer.
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appendScript('resources/empty_script.js', resolve);
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});
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};
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let testThatBufferContainsTheRightResources = () => {
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assert_equals(performance.getEntriesByType('resource').length, resource_timing_buffer_size, 'There should only be |bufferSize| resource entries.');
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assert_equals(bufferFullCount, 1, 'onresourcetimingbufferfull should have been invoked once.');
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};
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promise_test(async () => {
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await fillUpTheBufferWithTwoResources('resources/empty.js');
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await overflowTheBuffer();
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await waitForEventToFire();
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testThatBufferContainsTheRightResources();
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}, "Test that a buffer full event does not bubble and that resourcetimingbufferfull is called only once per overflow");
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</script>
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</body>
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</html>
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