Closed Bug 1720929 Opened 11 months ago Closed 11 months ago

[wpt-sync] Sync PR 29693 - Fix flaky test layout-instability/input-timestamp.html

Categories

(Testing :: web-platform-tests, task, P4)

task

Tracking

(firefox92 fixed)

RESOLVED FIXED
92 Branch
Tracking Status
firefox92 --- fixed

People

(Reporter: mozilla.org, Unassigned)

References

()

Details

(Whiteboard: [wptsync downstream])

Sync web-platform-tests PR 29693 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/29693
Details from upstream follow.

b'Lan Wei <lanwei@chromium.org>' wrote:

Fix flaky test layout-instability/input-timestamp.html

layout-instability/input-timestamp.html test is flaky because we are
waiting for 500ms to change the layout after a click event. The click
event should report a layout shift entry to PerformanceObserver with
hadRecentInput to be true, the layout shift of the div will report
another layout shift entry to PerformanceObserver with hadRecentInput to
be false. 500ms is the interval of the excluding input window, so if we
just set the timeout to be 500ms, the test is flaky, because the click
event may not executed right away. I change the time delay to be 600ms
to reduce the flakiness.

Bug:1221422
Change-Id: Ib960d98fe7ac7d0806a7152052465e9188afb2a9
Reviewed-on: https://chromium-review.googlesource.com/3032268
WPT-Export-Revision: 3dffc3e3bf94478fd5744ef3a093b8a887620959

CI Results

Ran 0 Firefox configurations based on mozilla-central, and Firefox, Chrome, and Safari on GitHub CI

Total 1 tests and 1 subtests

Status Summary

Firefox

OK : 1
FAIL: 1

Chrome

OK : 1
PASS: 1

Safari

OK : 1
FAIL: 1

Links

GitHub PR Head
GitHub PR Base

Details

New Tests That Don't Pass

/layout-instability/input-timestamp.html
Layout shift right after user input is observable via PerformanceObserver.: FAIL (Chrome: PASS, Safari: FAIL)

Pushed by wptsync@mozilla.com:
https://hg.mozilla.org/integration/autoland/rev/7eee71d2d713
[wpt PR 29693] - Fix flaky test layout-instability/input-timestamp.html, a=testonly
Pushed by wptsync@mozilla.com:
https://hg.mozilla.org/integration/autoland/rev/431043fdc266
[wpt PR 29693] - Fix flaky test layout-instability/input-timestamp.html, a=testonly
Status: NEW → RESOLVED
Closed: 11 months ago
Resolution: --- → FIXED
Target Milestone: --- → 92 Branch
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