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<!DOCTYPE HTML>
<html>
<head onload>
<meta charset="utf-8" />
<title>This test validates that synchronously adding entries in onresourcetimingbufferfull callback results in these entries being properly handled.</title>
<link rel="author" title="Google" href="http://www.google.com/" />
<link rel="help" href="https://www.w3.org/TR/resource-timing-2/#dom-performance-onresourcetimingbufferfull"/>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/resource-loaders.js"></script>
<script src="resources/buffer-full-utilities.js"></script>
</head>
<body>
<script>
promise_test(async t => {
addAssertUnreachedBufferFull(t);
await fillUpTheBufferWithSingleResource('resources/empty.js?willbelost');
// These resources overflow the entry buffer, and go into the secondary buffer.
load.xhr_sync(scriptResources[0]);
load.xhr_sync(scriptResources[1]);
performance.clearResourceTimings();
performance.setResourceTimingBufferSize(3);
load.xhr_sync(scriptResources[2]);
const entriesAfterAddition = performance.getEntriesByType('resource');
await waitForNextTask();
checkEntries(3);
assert_equals(entriesAfterAddition.length, 0, "No entries should have been added to the primary buffer before the task to 'fire a buffer full event'.");
}, "Test that if the buffer is cleared after entries were added to the secondary buffer, those entries make it into the primary one");
</script>
</body>
</html>
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