74 lines
2.8 KiB
HTML
74 lines
2.8 KiB
HTML
<!doctype html>
|
|
<html>
|
|
<head>
|
|
<script src="/resources/testharness.js"></script>
|
|
<script src="/resources/testharnessreport.js"></script>
|
|
</head>
|
|
<body>
|
|
<script>
|
|
async_test(function (t) {
|
|
assert_implements(window.PerformanceLongTaskTiming, 'Longtasks are not supported.');
|
|
const observer = new PerformanceObserver(
|
|
t.step_func(function (entryList) {
|
|
const entries = entryList.getEntries();
|
|
assert_greater_than_equal(entries.length, 1);
|
|
const entry = entries[0];
|
|
assert_equals(typeof(entry.toJSON), 'function');
|
|
const entryJSON = entry.toJSON();
|
|
assert_equals(typeof(entryJSON), 'object');
|
|
// Check attributes inheritted from PerformanceEntry.
|
|
const performanceEntryKeys = [
|
|
'name',
|
|
'entryType',
|
|
'startTime',
|
|
'duration'
|
|
];
|
|
for (const key of performanceEntryKeys) {
|
|
assert_equals(entryJSON[key], entry[key],
|
|
`entry.toJSON().${key} should match entry.${key}`);
|
|
}
|
|
|
|
// Check PerformanceLongTaskTiming specific entries.
|
|
assert_equals(typeof(entryJSON.attribution), 'object');
|
|
const entryJsonAttribution = entryJSON.attribution[0];
|
|
assert_equals(typeof(entryJsonAttribution), 'object');
|
|
assert_equals(entryJSON.attribution.length, entry.attribution.length);
|
|
|
|
// Check TaskAttributionTiming toJSON.
|
|
const entryAttribution = entry.attribution[0];
|
|
assert_equals(typeof(entryAttribution.toJSON), 'function');
|
|
const entryAttributionJSON = entryAttribution.toJSON();
|
|
assert_equals(typeof(entryAttributionJSON), 'object');
|
|
// Check TaskAttributionTiming attributes, from both:
|
|
// 1) |entryJsonAttribution| from PerformanceLongTaskTiming.
|
|
// 2) |entryAttributionJSON| from TaskAttributionTiming.
|
|
const taskAttributionTimingKeys = [
|
|
'name',
|
|
'entryType',
|
|
'startTime',
|
|
'duration',
|
|
'containerType',
|
|
'containerSrc',
|
|
'containerId',
|
|
'containerName'
|
|
];
|
|
for (const key of taskAttributionTimingKeys) {
|
|
assert_equals(entryAttributionJSON[key], entryAttribution[key],
|
|
`attribution.toJSON().${key} should match attribution.${key}`);
|
|
assert_equals(entryJsonAttribution[key], entryAttribution[key],
|
|
`entry.toJSON().attribution[0].${key} should match attribution.${key}`);
|
|
}
|
|
t.done();
|
|
})
|
|
);
|
|
observer.observe({entryTypes: ['longtask']});
|
|
|
|
window.onload = () => {
|
|
// Trigger a long task.
|
|
const begin = window.performance.now();
|
|
while (window.performance.now() < begin + 60);
|
|
};
|
|
}, 'Test toJSON() in PerformanceLongTaskTiming and TaskAttributionTiming');
|
|
</script>
|
|
</body>
|
|
</html>
|