Bug 218370

Summary:	[GTK][WPE] test imported/w3c/web-platform-tests/webaudio/the-audio-api/the-mediaelementaudiosourcenode-interface/no-cors.https.html is flaky
Product:	WebKit	Reporter:	Carlos Alberto Lopez Perez <clopez>
Component:	Web Audio	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	bugs-noreply, cdumez, lmoura, pnormand
Priority:	P2
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified
See Also:	https://bugs.webkit.org/show_bug.cgi?id=213331 https://bugs.webkit.org/show_bug.cgi?id=219603 https://bugs.webkit.org/show_bug.cgi?id=218010

Description Carlos Alberto Lopez Perez 2020-10-29 19:45:07 PDT

The test imported/w3c/web-platform-tests/webaudio/the-audio-api/the-mediaelementaudiosourcenode-interface/no-cors.https.html added in r262405 is flaky on GTK and WPE.

When it fails it gives this diff

--- /home/buildbot/worker/gtk-linux-64-release-tests/build/layout-test-results/imported/w3c/web-platform-tests/webaudio/the-audio-api/the-mediaelementaudiosourcenode-interface/no-cors.https-expected.txt
+++ /home/buildbot/worker/gtk-linux-64-release-tests/build/layout-test-results/imported/w3c/web-platform-tests/webaudio/the-audio-api/the-mediaelementaudiosourcenode-interface/no-cors.https-actual.txt
@@ -1,15 +1,11 @@
+
+Harness Error (TIMEOUT), message = null
 
 PASS # AUDIT TASK RUNNER STARTED.
 PASS Executing "setting-up-graph"
-PASS Executing "start-playback-and-capture"
-PASS Audit report
+TIMEOUT Executing "start-playback-and-capture" Test timed out
+NOTRUN Audit report
 PASS > [setting-up-graph]
 PASS < [setting-up-graph] All assertions passed. (total 0 assertions)
 PASS > [start-playback-and-capture]
-PASS   Recorded channel #0 contains only the constant 0.
-PASS   Recorded channel #1 contains only the constant 0.
-PASS   Recorded channel #2 contains only the constant 0.
-PASS   Recorded channel #3 contains only the constant 0.
-PASS < [start-playback-and-capture] All assertions passed. (total 4 assertions)
-PASS # AUDIT TASK RUNNER FINISHED: 2 tasks ran successfully.
 

On the interval [r265175-r269175] the flaky statistics for this tests are:
 - gtk-release: failed 25 of 773 runs 
 - wpe-release: failed 6 of 721 runs

Comment 1 Carlos Alberto Lopez Perez 2020-10-29 20:28:23 PDT

Updated expectations on r269178

Comment 2 Diego Pino 2021-06-04 19:35:55 PDT

This test, or group of tests, has been passing for the last 4000 revisions. Closing bug. Gardened in r278519.