[Webkit-unassigned] [Bug 228189] New: [Mac wk2] http/tests/media/hls/hls-webvtt-seek-backwards.html is a flaky timeout.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=228189

            Bug ID: 228189
           Summary: [Mac wk2]
                    http/tests/media/hls/hls-webvtt-seek-backwards.html is
                    a flaky timeout.
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Media
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ehutchison at apple.com

http/tests/media/hls/hls-webvtt-seek-backwards.html

is a flaky timeout on Mac wk2 and Catalina Debug GPUProcess since r279169.

History: https://results.webkit.org/?suite=layout-tests&test=http%2Ftests%2Fmedia%2Fhls%2Fhls-webvtt-seek-backwards.html&platform=ios&platform=mac

Diff:

--- /Volumes/Data/worker/bigsur-debug-tests-wk2/build/layout-test-results/http/tests/media/hls/hls-webvtt-seek-backwards-expected.txt
+++ /Volumes/Data/worker/bigsur-debug-tests-wk2/build/layout-test-results/http/tests/media/hls/hls-webvtt-seek-backwards-actual.txt
@@ -1,17 +1,5 @@
+#PID UNRESPONSIVE - WebKitTestRunner (pid 82587)
+FAIL: Timed out waiting for notifyDone to be called

-RUN(video.play())
-EVENT(addtrack)
-EXPECTED (video.textTracks.length == '1') OK
-RUN(video.textTracks[0].mode = 'showing')
-EVENT(cuechange)
-EXPECTED (video.textTracks[0].activeCues.length == '1') OK
-EXPECTED (video.textTracks[0].activeCues[0].text == 'Subtitle Test') OK
-RUN(video.currentTime = 9.5)
-EVENT(ended)
-RUN(video.currentTime = 0)
-RUN(video.play())
-EVENT(cuechange)
-EXPECTED (video.textTracks[0].activeCues.length == '1') OK
-EXPECTED (video.textTracks[0].activeCues[0].text == 'Subtitle Test') OK
-END OF TEST
-
+#EOF
+#EOF

Reproduced timeout on r280173, r279193 with run-webkit-tests --debug -f
 --clobber-old-results --exit-after-n-crashes-or-timeouts 1 --exit-after-n-failures 2 --iterations 500 http/tests/media/hls/hls-webvtt-seek-backwards.html.

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