36 lines
1.7 KiB
HTML
36 lines
1.7 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head onload>
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<meta charset="utf-8" />
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<title>This test validates the behavior of read and clear operation in onresourcetimingbufferfull callback of resource timing.</title>
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<link rel="author" title="Intel" href="http://www.intel.com/" />
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<link rel="help" href="https://www.w3.org/TR/resource-timing-2/#dom-performance-onresourcetimingbufferfull"/>
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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/resource-loaders.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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promise_test(async () => {
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await fillUpTheBufferWithSingleResource();
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const entryBuffer = [];
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performance.addEventListener('resourcetimingbufferfull', () => {
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entryBuffer.push(...performance.getEntriesByType('resource'));
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performance.clearResourceTimings();
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});
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load.script(scriptResources[1]);
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await bufferFullFirePromise;
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const entries = performance.getEntriesByType('resource');
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assert_equals(entries.length, 1,
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"Only the last entry should be stored in resource timing buffer since it's cleared once it overflows.");
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assert_true(entries[0].name.includes(scriptResources[1]),
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scriptResources[1] + " is in the entries buffer");
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assert_equals(entryBuffer.length, 1,
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'1 resource timing entry should be moved to entryBuffer.');
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assert_true(entryBuffer[0].name.includes(scriptResources[0]),
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scriptResources[0] + ' is in the entryBuffer');
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}, "Test that entries overflowing the buffer trigger the buffer full event, can be stored, and make their way to the primary buffer after it's cleared in the buffer full event.");
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</script>
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</body>
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</html>
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