Bug 228364

Summary:	[ Mac,iOS ] media/track/track-in-band-duplicate-tracks-when-source-changes.html is a flaky timeout
Product:	WebKit	Reporter:	ayumi_kojima
Component:	New Bugs	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	ehutchison, eric.carlson, hi, self, webkit-bot-watchers-bugzilla, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description ayumi_kojima 2021-07-27 14:25:10 PDT

media/track/track-in-band-duplicate-tracks-when-source-changes.html

Is a flaky timeout on iOS 14 E Simulator wk2.

History: https://results.webkit.org/?suite=layout-tests&test=media%2Ftrack%2Ftrack-in-band-duplicate-tracks-when-source-changes.html

Diff:

--- /Volumes/Data/worker/ipados-simulator-14-debug-tests-wk2/build/layout-test-results/media/track/track-in-band-duplicate-tracks-when-source-changes-expected.txt
+++ /Volumes/Data/worker/ipados-simulator-14-debug-tests-wk2/build/layout-test-results/media/track/track-in-band-duplicate-tracks-when-source-changes-actual.txt
@@ -1,14 +1,3 @@
+#PID UNRESPONSIVE - WebKitTestRunnerApp (pid 92674)
+FAIL: Timed out waiting for notifyDone to be called
 
-When changing the source for a video, we shouldn't get duplicate in-band tracks.
-
-EVENT(canplaythrough)
-
-** Storing number of tracks and reloading video
-EXPECTED (video.textTracks.length > '0') OK
-RUN(numTracks = video.textTracks.length)
-EVENT(canplaythrough)
-
-** Loaded video again, checking if tracks number is the same
-EXPECTED (video.textTracks.length == 'numTracks') OK
-END OF TEST

Comment 1 Radar WebKit Bug Importer 2021-07-27 14:25:46 PDT

<rdar://problem/81182216>

Comment 2 ayumi_kojima 2021-07-27 16:11:58 PDT

I was able to reproduce timeout (Didn’t get the diff) on iOS 15 simulator on my local machine using:
run-webkit-tests media/track/track-in-band-duplicate-tracks-when-source-changes.html --ios-simulator --exit-after-n-failures 2 --exit-after-n-crashes-or-timeouts 2 --iterations 500

I was able to reproduce timeout at TOT, r277101 (The oldest revision found in the history), r274810 (Revision the test is last modified), and r274808 (Before the test is last modified), but I am not sure if this is the same timeout as the bot is producing since I didn’t get the diff.

Comment 3 ayumi_kojima 2021-07-27 16:17:57 PDT

Updated test expectations https://trac.webkit.org/changeset/280357/webkit

Comment 4 Eric Hutchison 2021-08-24 16:47:43 PDT

Test also times out on Mac.

Comment 5 Eric Hutchison 2021-08-24 16:51:55 PDT

Updated test expectations at https://trac.webkit.org/changeset/281530/webkit.