<!DOCTYPE HTML>
<meta charset=utf-8>
<title>LongTask Timing: long task in rAF</title>
<body>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/raflongtask.js"></script>
<h1>Long Task: requestAnimationFrame</h1>
<div id="log"></div>
<script>
async_test(function (t) {
const observer = new PerformanceObserver(
t.step_func(function (entryList) {
const entries = entryList.getEntries();
assert_equals(entries.length, 1,
'Exactly one entry is expected.');
const longtask = entries[0];
assert_equals(longtask.entryType, 'longtask');
assert_equals(longtask.name, 'self');
assert_greater_than(longtask.duration, 50);
// Assert the TaskAttributionTiming entry in attribution.
assert_equals(longtask.attribution.length, 1,
'Exactly one attribution entry is expected');
const attribution = longtask.attribution[0];
assert_equals(attribution.entryType, 'taskattribution');
assert_equals(attribution.name, 'script');
assert_equals(attribution.duration, 0);
assert_equals(attribution.startTime, 0);
assert_equals(attribution.containerId, '');
assert_equals(attribution.containerName, '');
assert_equals(attribution.containerSrc, '');
observer.disconnect();
t.done();
})
);
observer.observe({entryTypes: ['longtask']});
}, 'Performance longtask entries are observable.');
</script>
</body>