REGRESSION: (r260822): [ iOS and Mac ] media/track/track-in-band-metadata-display-order.html

[Jason Lawrence]

media/track/track-in-band-metadata-display-order.html

Description:
This test is failing consistently on iOS and Mac.This test was previously identified as flaky failing here: https://bugs.webkit.org/show_bug.cgi?id=206226. The test regressed on r260822, when it started failing consistently.

History:
https://results.webkit.org/?suite=layout-tests&test=media%2Ftrack%2Ftrack-in-band-metadata-display-order.html&platform=ios&platform=mac&limit=50000

Diff:
--- /Volumes/Data/slave/catalina-release-tests-wk1/build/layout-test-results/media/track/track-in-band-metadata-display-order-expected.txt
+++ /Volumes/Data/slave/catalina-release-tests-wk1/build/layout-test-results/media/track/track-in-band-metadata-display-order-actual.txt
@@ -15,7 +15,7 @@
 RUN(metadataTrack.addCue(new DataCue(2.25, video.duration, "second data cue")))
 RUN(video.currentTime = 3)
 EVENT(seeked)
-EXPECTED (textTrackDisplayElement(video, "display", 0).textContent == 'I am later') OK
-EXPECTED (textTrackDisplayElement(video, "display", 1).textContent == 'I am earlier') OK
+EXPECTED (textTrackDisplayElement(video, "display", 0).textContent == 'I am later'), OBSERVED 'I am later ::cue{background-color:rgba(0, 0, 0, 0) !important;color:#ffffff;font-family: "Helvetica";} ::-webkit-media-text-track-display-backdrop{background-color:rgba(0, 0, 0, 0.498) !important;padding: .4em !important;border-radius:8px !important;}' FAIL
+EXPECTED (textTrackDisplayElement(video, "display", 1).textContent == 'I am earlier'), OBSERVED 'I am earlier ::cue{background-color:rgba(0, 0, 0, 0) !important;color:#ffffff;font-family: "Helvetica";} ::-webkit-media-text-track-display-backdrop{background-color:rgba(0, 0, 0, 0.498) !important;padding: .4em !important;border-radius:8px !important;}' FAIL
 END OF TEST

[Radar WebKit Bug Importer]

<rdar://problem/62523974>

[Jason Lawrence]

I can reproduce this issue on r260823, but cannot reproduce it on r26082. 

Command:
run-webkit-tests --iterations 99 --exit-after-n-failures 3 --force -f media/track/track-in-band-metadata-display-order.html

[Philippe Normand]

*** This bug has been marked as a duplicate of bug 211133 ***