208059 2020-02-21 08:34:33 -0800 [ Mac wk1 Debug ] legacy-animation-engine/compositing/transitions/add-remove-transition.html is flaky failing. 2020-03-09 12:55:34 -0700 1 1 1 Unclassified WebKit Animations WebKit Nightly Build Mac macOS 10.14 RESOLVED CONFIGURATION CHANGED InRadar P2 Normal --- 1 Lawrence.j webkit-unassigned dino graouts webkit-bot-watchers-bugzilla webkit-bug-importer oldest_to_newest 1621657 0 391402 Lawrence.j 2020-02-21 08:34:33 -0800 Created attachment 391402 add-remove-transition-diff legacy-animation-engine/compositing/transitions/add-remove-transition.html Description: This test is flaky failing on Mac wk1 Debug. The failures seem to be throughout the visible history, with the oldest matching diff that Im able to locate appearing on r254416. History: https://results.webkit.org/?suite=layout-tests&test=legacy-animation-engine%2Fcompositing%2Ftransitions%2Fadd-remove-transition.html&flavor=wk1&platform=mac&limit=50000&style=debug Diff: https://build.webkit.org/results/Apple-Catalina-Debug-WK1-Tests/r257132%20(2626)/legacy-animation-engine/compositing/transitions/add-remove-transition-diff.png 1621658 1 webkit-bug-importer 2020-02-21 08:34:52 -0800 <rdar://problem/59669125> 1621662 2 Lawrence.j 2020-02-21 08:47:44 -0800 I have marked this test as failing while this issue is occurring. https://trac.webkit.org/changeset/257136/webkit 1621691 3 Lawrence.j 2020-02-21 10:16:11 -0800 I am able to reproduce the issue using r257133 with the command below. run-webkit-tests legacy-animation-engine/compositing/transitions/add-remove-transition.html --iterations 4000 --exit-after-n-failures 5 -f --force --debug -1 [17/4000] legacy-animation-engine/compositing/transitions/add-remove-transition.html failed unexpectedly (reference mismatch) [85/4000] legacy-animation-engine/compositing/transitions/add-remove-transition.html failed unexpectedly (reference mismatch) [542/4000] legacy-animation-engine/compositing/transitions/add-remove-transition.html failed unexpectedly (reference mismatch) [603/4000] legacy-animation-engine/compositing/transitions/add-remove-transition.html failed unexpectedly (reference mismatch) [888/4000] legacy-animation-engine/compositing/transitions/add-remove-transition.html failed unexpectedly (reference mismatch) Exiting early after 5 failures. 885 tests run. 880 tests ran as expected, 5 didn't (3115 didn't run): 1627886 4 graouts 2020-03-09 12:55:34 -0700 This test is gone as of r258150, see bug 208815. 391402 2020-02-21 08:34:33 -0800 2020-02-21 08:34:33 -0800 add-remove-transition-diff add-remove-transition-diff.png image/png 2578 Lawrence.j iVBORw0KGgoAAAANSUhEUgAAAyAAAAJYCAAAAAC/Hd2sAAAAOGVYSWZNTQAqAAAACAABh2kABAAA AAEAAAAaAAAAAAACoAIABAAAAAEAAAMgoAMABAAAAAEAAAJYAAAAAOGil64AAAmVSURBVHgB7dNB 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