[Webkit-unassigned] [Bug 187911] New: [macOS debug] Layout Test imported/w3c/web-platform-tests/media-source/SourceBuffer-abort-readyState.html is a flaky failure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=187911

            Bug ID: 187911
           Summary: [macOS debug] Layout Test
                    imported/w3c/web-platform-tests/media-source/SourceBuf
                    fer-abort-readyState.html is a flaky failure
           Product: WebKit
           Version: Other
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ryanhaddad at apple.com

The following layout test is flaky on macOS debug bots

imported/w3c/web-platform-tests/media-source/SourceBuffer-abort-readyState.html

Probable cause:

Unknown, this test has been flaky for a while.

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=imported%2Fw3c%2Fweb-platform-tests%2Fmedia-source%2FSourceBuffer-abort-readyState.html

The test usually completes less than 2 seconds, but intermittently times out after 135 seconds with the following diff:

--- /Volumes/Data/slave/sierra-debug-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/media-source/SourceBuffer-abort-readyState-expected.txt
+++ /Volumes/Data/slave/sierra-debug-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/media-source/SourceBuffer-abort-readyState-actual.txt
@@ -1,4 +1,7 @@
+CONSOLE MESSAGE: line 51: InvalidStateError: The object is in an invalid state.
+
+Harness Error (FAIL), message = InvalidStateError: The object is in an invalid state.

 FAIL SourceBuffer#abort() (video/webm; codecs="vorbis,vp8") : If the readyState attribute of the parent media source is not in the "open" state then throw an INVALID_STATE_ERR exception and abort these steps. assert_unreached: Browser doesn't support the MIME used in this test: video/webm; codecs="vorbis,vp8" Reached unreachable code
-PASS SourceBuffer#abort() (video/mp4) : If the readyState attribute of the parent media source is not in the "open" state then throw an INVALID_STATE_ERR exception and abort these steps. 
+TIMEOUT SourceBuffer#abort() (video/mp4) : If the readyState attribute of the parent media source is not in the "open" state then throw an INVALID_STATE_ERR exception and abort these steps. Test timed out

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20180723/44385e71/attachment.html>