Files
tubestation/testing/web-platform/tests/user-timing/buffered-flag.any.js
Nicolás Peña Moreno 6c9175a500 Bug 1566139 [wpt PR 17837] - Add buffered flag tests for ResourceTiming and PaintTiming, a=testonly
Automatic update from web-platform-tests
Add buffered flag tests for ResourceTiming and PaintTiming

Bug: 969123
Change-Id: I2773136f560f2739257c49b767ae8b66db1a0745
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1701959
Reviewed-by: Yoav Weiss <yoavweiss@chromium.org>
Commit-Queue: Nicolás Peña Moreno <npm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#678682}

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wpt-commits: 375e9b600f7e716fac71b6ae21e2a7318e544096
wpt-pr: 17837
2019-07-24 13:35:30 +01:00

28 lines
1.3 KiB
JavaScript

async_test(t => {
// First observer creates second in callback to ensure the entry has been dispatched by the time
// the second observer begins observing.
new PerformanceObserver(() => {
// Second observer requires 'buffered: true' to see an entry.
new PerformanceObserver(t.step_func_done(list => {
const entries = list.getEntries();
assert_equals(entries.length, 1, 'There should be 1 mark entry.');
assert_equals(entries[0].entryType, 'mark');
})).observe({type: 'mark', buffered: true});
}).observe({entryTypes: ['mark']});
performance.mark('foo');
}, 'PerformanceObserver with buffered flag sees previous marks');
async_test(t => {
// First observer creates second in callback to ensure the entry has been dispatched by the time
// the second observer begins observing.
new PerformanceObserver(() => {
// Second observer requires 'buffered: true' to see an entry.
new PerformanceObserver(t.step_func_done(list => {
const entries = list.getEntries();
assert_equals(entries.length, 1, 'There should be 1 measure entry.');
assert_equals(entries[0].entryType, 'measure');
})).observe({type: 'measure', buffered: true});
}).observe({entryTypes: ['measure']});
performance.measure('bar');
}, 'PerformanceObserver with buffered flag sees previous measures');