[Webkit-unassigned] [Bug 184609] New: REGRESSION: Layout Test platform/mac/media/audio-session-category-video-track-change.html is a flaky failure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=184609

            Bug ID: 184609
           Summary: REGRESSION: Layout Test
                    platform/mac/media/audio-session-category-video-track-
                    change.html is a flaky failure
           Product: WebKit
           Version: Other
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Media Elements
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ryanhaddad at apple.com

The following layout test is flaky on macOS

platform/mac/media/audio-session-category-video-track-change.html

Probable cause:

Unknown, this test became flaky within the last 7 days. The first failure on the dashboard blames https://trac.webkit.org/changeset/230365/webkit

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=platform%2Fmac%2Fmedia%2Faudio-session-category-video-track-change.html

--- /Volumes/Data/slave/highsierra-release-tests-wk1/build/layout-test-results/platform/mac/media/audio-session-category-video-track-change-expected.txt
+++ /Volumes/Data/slave/highsierra-release-tests-wk1/build/layout-test-results/platform/mac/media/audio-session-category-video-track-change-actual.txt
@@ -2,16 +2,16 @@
 RUN(internals.settings.setShouldManageAudioSessionCategory(true))
 RUN(video.src = findMediaFile("video", "../../../media/content/test"))
 EVENT(canplay)
-EXPECTED (internals.audioSessionCategory() == 'None') OK
+EXPECTED (internals.audioSessionCategory() == 'None'), OBSERVED 'AmbientSound' FAIL
 RUN(video.audioTracks[0].enabled = false)
 EVENT(change)
-EXPECTED (internals.audioSessionCategory() == 'None') OK
+EXPECTED (internals.audioSessionCategory() == 'None'), OBSERVED 'AmbientSound' FAIL
 RUN(video.muted = false)
 EVENT(volumechange)
-EXPECTED (internals.audioSessionCategory() == 'None') OK
+EXPECTED (internals.audioSessionCategory() == 'None'), OBSERVED 'AmbientSound' FAIL
 RUN(video.play())
 EVENT(playing)
-EXPECTED (internals.audioSessionCategory() == 'None') OK
+EXPECTED (internals.audioSessionCategory() == 'None'), OBSERVED 'AmbientSound' FAIL
 RUN(video.audioTracks[0].enabled = true)
 EVENT(change)
 EXPECTED (internals.audioSessionCategory() == 'MediaPlayback') OK

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