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<!DOCTYPE HTML>
<html>
<head onload>
<meta charset="utf-8" />
<title>This test validates the buffer doesn't contain more entries than it should inside onresourcetimingbufferfull callback.</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-setresourcetimingbuffersize"/>
<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 => {
performance.addEventListener('resourcetimingbufferfull', t.step_func(() => {
assert_equals(performance.getEntriesByType("resource").length, 1,
"resource timing buffer in resourcetimingbufferfull is the size of the limit");
load.xhr_sync(scriptResources[2]);
performance.setResourceTimingBufferSize(3);
assert_equals(performance.getEntriesByType("resource").length, 1,
"A sync request must not be added to the primary buffer just yet, because it is full");
}));
await forceBufferFullEvent();
await waitForNextTask();
checkEntries(3);
}, "Test that entries in the secondary buffer are not exposed during the callback and before they are copied to the primary buffer");
</script>
</body>
</html>
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