[Webkit-unassigned] [Bug 207566] New: [ macOS wk1 ] imported/w3c/web-platform-tests/web-animations/timing-model/animations/pausing-an-animation.html is flaky failing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=207566

            Bug ID: 207566
           Summary: [ macOS wk1 ]
                    imported/w3c/web-platform-tests/web-animations/timing-
                    model/animations/pausing-an-animation.html is flaky
                    failing
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Animations
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: jacob_uphoff at apple.com
                CC: dino at apple.com

imported/w3c/web-platform-tests/web-animations/timing-model/animations/pausing-an-animation.html

This test started flaky failing around r255875

the test fails on wk1 debug 

I was able to reproduce it with iteration test runs. In 5000 tests it failed 378 times.

History:

https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fweb-animations%2Ftiming-model%2Fanimations%2Fpausing-an-animation.html&limit=50000

Diff:

--- /Volumes/Data/slave/catalina-debug-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/web-animations/timing-model/animations/pausing-an-animation-expected.txt
+++ /Volumes/Data/slave/catalina-debug-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/web-animations/timing-model/animations/pausing-an-animation-actual.txt
@@ -1,6 +1,4 @@
 CONSOLE MESSAGE: Unhandled Promise Rejection: AbortError: The operation was aborted.
-
-Harness Error (FAIL), message = Unhandled rejection: The operation was aborted.

 PASS Pausing clears the start time 
 PASS Aborting a pause preserves the start time

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