229584 2021-08-26 13:32:03 -0700 REGRESSION: animations/fill-mode-forwards.html is a flaky failure 2026-01-12 09:02:50 -0800 1 1 1 Unclassified WebKit Animations WebKit Nightly Build Unspecified Unspecified NEW InRadar P2 Normal --- 1 ehutchison webkit-unassigned ahmad.saleem792 dino ehutchison fujii graouts webkit-bot-watchers-bugzilla webkit-bug-importer wenson_hsieh oldest_to_newest 1787774 0 ehutchison 2021-08-26 13:32:03 -0700 animations/fill-mode-forwards.html is a flaky failure on BigSur wk2 Release and iOS15. History: https://results.webkit.org/?suite=layout-tests&test=animations%2Ffill-mode-forwards.html Results: https://build.webkit.org/results/Apple-BigSur-Release-WK2-Tests/r281633%20(4747)/results.html Diff: --- /Volumes/Data/worker/bigsur-release-tests-wk2/build/layout-test-results/animations/fill-mode-forwards-expected.txt +++ /Volumes/Data/worker/bigsur-release-tests-wk2/build/layout-test-results/animations/fill-mode-forwards-actual.txt @@ -1 +1 @@ -PASS - Test working +FAIL - pop animation should not be finished after pulse animation 1787775 1 webkit-bug-importer 2021-08-26 13:32:42 -0700 <rdar://problem/82404950> 1787776 2 wenson_hsieh 2021-08-26 13:34:03 -0700 http://trac.webkit.org/changeset/281633/webkit is clearly unrelated. 1787787 3 ehutchison 2021-08-26 13:51:39 -0700 Unable to reproduce locally. Updated test expectations at https://trac.webkit.org/changeset/281651/webkit. 1997558 4 fujii 2023-12-06 16:58:47 -0800 Still failing. https://results.webkit.org/?suite=layout-tests&test=animations%2Ffill-mode-forwards.html But, not only flaky text failure, but also flaky timeout. Not only Release, but also Debug. Not only wk2, but also wk1. I think we should move the marker to the top TestExpectations. > webkit.org/b/229584 animations/fill-mode-forwards.html [ Pass Failure Timeout ] 2044571 5 ahmad.saleem792 2024-07-03 15:27:56 -0700 This test was removed from Blink here - https://codereview.chromium.org/29363005 ***** This test relies on receiving a specific number of animationiteration events. However, in both the legacy and Web Animations implementations, we do not guarantee that the correct number of these events is fired. See crbug.com/275263. We have no immediate plans to fix this and the flakiness dashboard shows timeouts for this test with both implementations. The test was added to test a particular bug fix in the legacy animations implementation (http://trac.webkit.org/changeset/117216) and has little to do with forwards fill. Most cases of forwards-fill testing (excluding play-state and events) is covered by timing-model.html This test therefore adds little value and should be removed. We can consider reinstating it if and when the underlying bug is fixed. ****