Bug 279096 – [ macOS wk2 arm64 debug ] animations/stop-animation-on-suspend.html is a flaky text failure.

• Status: NEW
• Component: Animations

[Anfernee Viduya]

animations/stop-animation-on-suspend.html
is a flaky text failure. 

HISTORY: 
https://results.webkit.org/?platform=mac&suite=layout-tests&test=animations%2Fstop-animation-on-suspend.html&style=debug

DIFF: 
 PASS - "webkitTransform" property for "box" element at 0.2s saw something close to: 1,0,0,1,100,0
-PASS - "webkitTransform" property for "iframe.subframe-box" element at 0.2s saw something close to: 1,0,0,1,100,0
+FAIL - "webkitTransform" property for "iframe.subframe-box" element at 0.2s expected: 1,0,0,1,100,0 but saw: matrix(1, 0, 0, 1, 67, 0)
 PASS - "webkitTransform" property for "box" element at 0.4s saw something close to: 1,0,0,1,400,0
-PASS - "webkitTransform" property for "iframe.subframe-box" element at 0.4s saw something close to: 1,0,0,1,400,0
+FAIL - "webkitTransform" property for "iframe.subframe-box" element at 0.4s expected: 1,0,0,1,400,0 but saw: matrix(1, 0, 0, 1, 367, 0)
 
LINK: 
https://build.webkit.org/results/Apple-Sonoma-Release-AppleSilicon-WK2-Tests/283116%40main%20(5417)/animations/stop-animation-on-suspend-diff.txt

REPRODUCIBILITY: 
I was able to reproduce on ToT using command
run-webkit-tests animations/stop-animation-on-suspend.html --debug --iterations=1000

DESCRIPTION:
The failure has been occurring for some time now, and does not have a clear regression point.

[Radar WebKit Bug Importer]

<rdar://problem/135234629>

[EWS]

Test gardening commit 283125@main (8ba6dc42e1db): <https://commits.webkit.org/283125@main>

Reviewed commits have been landed. Closing PR #33096 and removing active labels.