[Webkit-unassigned] [Bug 115045] New: [Mac] Various media/track tests (e.g track-mode.html) sometimes trigger InvalidStateErrors

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=115045

           Summary: [Mac] Various media/track tests (e.g track-mode.html)
                    sometimes trigger InvalidStateErrors
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Keywords: NeedsRadar
          Severity: Normal
          Priority: P2
         Component: Media Elements
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jberlin at webkit.org
                CC: eric.carlson at apple.com, rniwa at webkit.org,
                    webkit-bug-importer at group.apple.com


I have seen this happen with a couple different media/track tests.

http://build.webkit.org/results/Apple%20MountainLion%20Debug%20WK2%20(Tests)/r148970%20(9125)/media/track/track-mode-diff.txt

--- /Volumes/Data/slave/mountainlion-debug-tests-wk2/build/layout-test-results/media/track/track-mode-expected.txt
+++ /Volumes/Data/slave/mountainlion-debug-tests-wk2/build/layout-test-results/media/track/track-mode-actual.txt
@@ -1,39 +1,3 @@
-Tests that the TextTrack mode attribute is appropriately set.
+CONSOLE MESSAGE: line 59: InvalidStateError: DOM Exception 11: An attempt was made to use an object that is not, or is no longer, usable.
+FAIL: Timed out waiting for notifyDone to be called

-
-++ Test default attribute value
-EXPECTED (textTrack.mode == 'showing') OK
-EXPECTED (video.textTracks[0].mode == 'showing') OK
-
-*** Set to bogus value, should return default
-RUN(textTrack.mode = 'bogus')
-EXPECTED (textTrack.mode == 'showing') OK
-EXPECTED (video.textTracks[0].mode == 'showing') OK
-
-*** Set to known values
-++ 'disabled'
-RUN(textTrack.mode = 'disabled')
-EXPECTED (textTrack.mode == 'disabled') OK
-EXPECTED (video.textTracks[0].mode == 'disabled') OK
-EXPECTED (textTrack.cues == 'null') OK
-
-++ 0 events expected while mode = disabled
-
-++ 'hidden'
-RUN(textTrack.mode = 'hidden')
-EXPECTED (textTrack.mode == 'hidden') OK
-EXPECTED (video.textTracks[0].mode == 'hidden') OK
-EXPECTED (textTrack.cues.length == '3') OK
-
-++ 'showing'
-RUN(textTrack.mode = 'showing')
-EXPECTED (textTrack.mode == 'showing') OK
-EXPECTED (video.textTracks[0].mode == 'showing') OK
-EXPECTED (textTrack.cues.length == '3') OK
-
-++ at least 3 events expected while mode = showing
-EVENT(cuechange)
-EVENT(cuechange)
-EVENT(cuechange)
-END OF TEST
-

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