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Automatic update from web-platform-tests Replace assert_precondition with assert_implements in paint-timing/ assert_precondition is deprecated (see https://github.com/web-platform-tests/rfcs/blob/master/rfcs/assert_precondition_rename.md). Since PerformancePaintTiming is not an OPTIONAL part of the Paint Timing spec, these tests should use assert_implements. -- Replace assert_precondition with assert_implements in longtask-timing/ assert_precondition is deprecated (see https://github.com/web-platform-tests/rfcs/blob/master/rfcs/assert_precondition_rename.md). Since PerformanceLongTaskTiming is not an OPTIONAL part of the Long Tasks spec, these tests should use assert_implements. -- Replace assert_precondition with assert_implements in event-timing/ assert_precondition is deprecated (see https://github.com/web-platform-tests/rfcs/blob/master/rfcs/assert_precondition_rename.md). Since PerformanceElementTiming is not an OPTIONAL part of the Element Timing spec and EventCount is not an OPTIONAL part of the Event Timing spec, these tests should use assert_implements. -- Replace assert_precondition with assert_implements in element-timing/ assert_precondition is deprecated (see https://github.com/web-platform-tests/rfcs/blob/master/rfcs/assert_precondition_rename.md). Since PerformanceElementTiming is not an OPTIONAL part of the Element Timing spec, these tests should use assert_implements. -- wpt-commits: f3bf3bbd75dbab84e13406ddd86c6a7d00b39986, 4eee874b2c46f4ffff81112b8b3ff490e5092238, 67f7dd268503f106abdc8b38f617a4ba2f299f95, dcfc14df9aa42d2faa708598db34364ecd09b583 wpt-pr: 23004
26 lines
1.3 KiB
JavaScript
26 lines
1.3 KiB
JavaScript
async_test(t => {
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assert_implements(window.PerformanceLongTaskTiming, 'Longtasks are not supported.');
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new PerformanceObserver(t.step_func((entryList, obs) => {
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const observer = new PerformanceObserver(t.step_func_done(list => {
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let longtaskObserved = false;
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list.getEntries().forEach(entry => {
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if (entry.entryType === 'mark')
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return;
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assert_equals(entry.entryType, 'longtask');
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assert_equals(entry.name, 'self');
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assert_greater_than(entry.duration, 50);
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longtaskObserved = true;
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});
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assert_true(longtaskObserved, 'Did not observe buffered longtask.');
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}));
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observer.observe({type: 'longtask', buffered: true});
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// Observer mark so that we can flush the observer callback.
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observer.observe({type: 'mark'});
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performance.mark('m');
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// Disconnect the embedding observer so this callback only runs once.
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obs.disconnect();
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})).observe({entryTypes: ['longtask']});
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// Create a long task.
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const begin = window.performance.now();
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while (window.performance.now() < begin + 60);
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}, 'PerformanceObserver with buffered flag can see previous longtask entries.');
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