062f8e3730All API introduced in this PR are compliant with web [performance-timeline](https://w3c.github.io/performance-timeline) spec. "performance-timeline" is listed as supported web spec in the doc https://nodejs.org/docs/latest/api/perf_hooks.html#perf_hooks_performance_measurement_apis. Changes summary: 1. Add new supported wpt test subsets: user-timing and performance-timeline. 2. Add support for `Performance.getEntries`, `Performance.getEntriesByName` and `Performance.getEntriesByType` to synchronously fetch buffered performance entries. This means the user should invoke `Performance.clearMarks` and `Performance.clearMeasures` to clear buffered entries to prevent from those entries been kept alive forever. 3. Add support (again after https://github.com/nodejs/node/pull/37136) for `buffered` flags for `PerformanceObserver`. 3. Fixes `PerformanceMark` and `PerformanceMeasure` wpt compliance issues. 4. Only user-created performance entries will be buffered globally. This behavior should be compliant with https://w3c.github.io/timing-entrytypes-registry/#registry. With the new ability to fetch user-created performance entries synchronously, the issues raised in https://github.com/nodejs/diagnostics/issues/464#issuecomment-861920116 could also be fixed. PR-URL: https://github.com/nodejs/node/pull/39297 Reviewed-By: James M Snell <jasnell@gmail.com>
21 lines
632 B
JavaScript
21 lines
632 B
JavaScript
test(() => {
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performance.mark('markName');
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performance.measure('measureName');
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const entries = performance.getEntries();
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const performanceEntryKeys = [
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'name',
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'entryType',
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'startTime',
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'duration'
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];
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for (let i = 0; i < entries.length; ++i) {
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assert_equals(typeof(entries[i].toJSON), 'function');
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const json = entries[i].toJSON();
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assert_equals(typeof(json), 'object');
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for (const key of performanceEntryKeys) {
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assert_equals(json[key], entries[i][key],
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`entries[${i}].toJSON().${key} should match entries[${i}].${key}`);
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}
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}
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}, 'Test toJSON() in PerformanceEntry');
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