[ BigSur WK1] media/video-multiple-concurrent-playback.html is flakey text failing

[Robert Jenner]

media/video-multiple-concurrent-playback.html

Is flakey failing only on Big Sur in WK1.

HISTORY URL:
https://results.webkit.org/?suite=layout-tests&test=media%2Fvideo-multiple-concurrent-playback.html

Bug Reported in r272344.

DIFF URL:
https://build.webkit.org/results/Apple-BigSur-Release-WK1-Tests/r272344%20(1408)/media/video-multiple-concurrent-playback-pretty-diff.html

DIFF TEXT:
--- /Volumes/Data/slave/bigsur-release-tests-wk1/build/layout-test-results/media/video-multiple-concurrent-playback-expected.txt
+++ /Volumes/Data/slave/bigsur-release-tests-wk1/build/layout-test-results/media/video-multiple-concurrent-playback-actual.txt
@@ -34,8 +34,8 @@
 RUN(videos[3].play())
 EVENT(pause)
 
-EXPECTED (videos[0].paused == 'false') OK
-EXPECTED (videos[1].paused == 'false') OK
+EXPECTED (videos[0].paused == 'false'), OBSERVED 'true' FAIL
+EXPECTED (videos[1].paused == 'false'), OBSERVED 'true' FAIL
 EXPECTED (videos[2].paused == 'true') OK
 EXPECTED (videos[3].paused == 'false') OK
 END OF TEST


Flakey failure first reported in history at r271063, which is close to when this test started running on Big Sur in WK1.

This test has only failed in Big Sur on WK1. It does not flakey fail on Catalina WK1, or in WK2.

[Radar WebKit Bug Importer]

<rdar://problem/73957433>

[Robert Jenner]

Created attachment 420173 [details]
Patch

[Robert Jenner]

Created attachment 420744 [details]
Patch

[Truitt Savell]

Comment on attachment 420744 [details]
Patch

Clearing flags on attachment: 420744

Committed r273043 (234244@main): <https://commits.webkit.org/234244@main>