Bug 261919 – NEW TEST(247465@main): [ macOS wk2 ] webanimations/frame-rate/animation-frame-rate-alignment-started-with-one-frame-separation.html is a flaky failure.

• Status: NEW
• Component: Animations

[Ben Schwartz]

webanimations/frame-rate/animation-frame-rate-alignment-started-with-one-frame-separation.html

This test has been a flaky failure on macOS wk2 since its introduction at 247465@main.

HISTORY:

https://results.webkit.org/?suite=layout-tests&test=webanimations%2Fframe-rate%2Fanimation-frame-rate-alignment-started-with-one-frame-separation.html&recent=false

TEXT DIFF:

-PASS Animations with the same frameRate started separately fire at the same timeline time
+FAIL Animations with the same frameRate started separately fire at the same timeline time assert_equals: The second timestamp was for animation "two" expected "two" but got "one"
 
DIFF URL:

https://build.webkit.org/results/Apple-Ventura-Release-AppleSilicon-WK2-Tests/268273%40main%20(5054)/webanimations/frame-rate/animation-frame-rate-alignment-started-with-one-frame-separation-pretty-diff.html

REPRODUCIBILITY:

I was able to reproduce this issue on macOS Ventura (13.5, 22G74/arm64) ToT using the following command:

run-webkit-tests --clobber-old-results --verbose --iterations 100 --exit-after-n-failures 1 --child-processes 10 -f webanimations/frame-rate/animation-frame-rate-alignment-started-with-one-frame-separation.html

REGRESSION:

This test has been flaky since it was introduced at 247465@main.

[Radar WebKit Bug Importer]

<rdar://problem/115867501>

[EWS]

Test gardening commit 268285@main (63a48f8d2b4b): <https://commits.webkit.org/268285@main>

Reviewed commits have been landed. Closing PR #18055 and removing active labels.

[Dawn Morningstar]

This is flaky on iOS as well since it was introduced.

[Dawn Morningstar]

Pull request: https://github.com/WebKit/WebKit/pull/31986

[EWS]

Test gardening commit 282075@main (c90b32d7e885): <https://commits.webkit.org/282075@main>

Reviewed commits have been landed. Closing PR #31986 and removing active labels.