buffer-full-set-to-current-buffer.html

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This WPT test may be referenced by the following Test IDs:
- /resource-timing/buffer-full-set-to-current-buffer.html - WPT Dashboard Interop Dashboard

<!DOCTYPE HTML>

<html>

<head>

<meta charset="utf-8">

<title>This test validates that setResourceTimingBufferFull behaves appropriately when set to the current buffer level.</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 () => {

    let result = '';

    performance.addEventListener('resourcetimingbufferfull', () => {

        result += 'Event Fired with '  +

            performance.getEntriesByType('resource').length + ' entries.';

        performance.clearResourceTimings();

});

    result += 'Before adding entries. ';

    await fillUpTheBufferWithTwoResources();

    result += 'After adding entries. ';

    load.script(scriptResources[2]);

    await bufferFullFirePromise;

    assert_equals(result, 'Before adding entries. After adding entries. Event Fired with 2 entries.');

    const entries = performance.getEntriesByType('resource');

    assert_equals(entries.length, 1,

        'Number of entries in resource timing buffer is unexpected');

    assert_true(entries[0].name.includes(scriptResources[2]),

        'The entry must correspond to the last resource loaded.')

}, "Test that adding entries and firing the buffer full event happen in the right order.");

</script>