210549 2020-04-15 08:10:37 -0700 REGRESSION( r260114): [ Mac and iOS ] imported/w3c/web-platform-tests/web-animations/timing-model/timelines/document-timelines.html is failing. 2020-04-15 11:21:41 -0700 1 1 1 Unclassified WebKit Animations WebKit Nightly Build Mac macOS 10.15 RESOLVED FIXED InRadar P2 Normal --- 1 Lawrence.j webkit-unassigned dino webkit-bot-watchers-bugzilla webkit-bug-importer zalan oldest_to_newest 1641797 0 Lawrence.j 2020-04-15 08:10:37 -0700 imported/w3c/web-platform-tests/web-animations/timing-model/timelines/document-timelines.html Description: This test is flaky failing on iOS and Mac. The test appears to have regressed with r260114. History: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fweb-animations%2Ftiming-model%2Ftimelines%2Fdocument-timelines.html&platform=ios&platform=mac Diff: --- /Volumes/Data/slave/catalina-release-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/web-animations/timing-model/timelines/document-timelines-expected.txt +++ /Volumes/Data/slave/catalina-release-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/web-animations/timing-model/timelines/document-timelines-actual.txt @@ -1,4 +1,4 @@ -PASS Document timelines report current time relative to navigationStart +FAIL Document timelines report current time relative to navigationStart assert_equals: The current time matches requestAnimationFrame time expected 13.000000000000002 but got 13 PASS Child frames do not report negative initial times 1641798 1 webkit-bug-importer 2020-04-15 08:10:58 -0700 <rdar://problem/61828495> 1641799 2 Lawrence.j 2020-04-15 08:13:06 -0700 I was able to reproduce this issue with r260114, but cannot reproduce it with r260113. r260114: run-webkit-tests --iterations 99 --exit-after-n-failures 3 --force -f imported/w3c/web-platform-tests/web-animations/timing-model/timelines/document-timelines.html [30/99] imported/w3c/web-platform-tests/web-animations/timing-model/timelines/document-timelines.html failed unexpectedly (text diff) [46/99] imported/w3c/web-platform-tests/web-animations/timing-model/timelines/document-timelines.html failed unexpectedly (text diff) [48/99] imported/w3c/web-platform-tests/web-animations/timing-model/timelines/document-timelines.html failed unexpectedly (text diff) Exiting early after 3 failures. 45 tests run. 42 tests ran as expected, 3 didn't (54 didn't run): r260113: All 99 tests ran as expected. 1641881 3 zalan 2020-04-15 11:21:18 -0700 Committed r260140: <https://trac.webkit.org/changeset/260140> 1641882 4 zalan 2020-04-15 11:21:41 -0700 see also bug 210559