[Webkit-unassigned] [Bug 221426] New: [BigSur WK1] media/media-source/media-source-webm-init-inside-segment.html is consistently failing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=221426

            Bug ID: 221426
           Summary: [BigSur WK1]
                    media/media-source/media-source-webm-init-inside-segme
                    nt.html is consistently failing
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: amir_mark at apple.com

media/media-source/media-source-webm-init-inside-segment.html

Is consistently failing in BigSur wk1 starting on r272043

HISTORY:

https://results.webkit.org/?suite=layout-tests&test=media%2Fmedia-source%2Fmedia-source-webm-init-inside-segment.html

TEXT DIFF:

--- /Volumes/Data/slave/bigsur-release-tests-wk1/build/layout-test-results/media/media-source/media-source-webm-init-inside-segment-expected.txt
+++ /Volumes/Data/slave/bigsur-release-tests-wk1/build/layout-test-results/media/media-source/media-source-webm-init-inside-segment-actual.txt
@@ -4,16 +4,9 @@
 EVENT(sourceopen)
 RUN(source.duration = loader.duration())
 RUN(sourceBuffer = source.addSourceBuffer(loader.type()))
+NotSupportedError: The operation is not supported.
 RUN(sourceBuffer.appendBuffer(loader.initSegment()))
-EVENT(update)
-Append a media segment.
-RUN(sourceBuffer.appendBuffer(loader.mediaSegment(0)))
-EVENT(update)
-Append a new Initialization Segment.
-RUN(sourceBuffer.appendBuffer(loader.initSegment()))
-EVENT(update)
-Append a media segment.
-RUN(sourceBuffer.appendBuffer(loader.mediaSegment(1)))
-EVENT(update)
+TypeError: undefined is not an object (evaluating 'sourceBuffer.appendBuffer')
+Caught exception: "TypeError: undefined is not an object (evaluating 'element.addEventListener')" FAIL
 END OF TEST

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