Bug 231601 – [ iOS Release ] fast/mediastream/mediaElement-gc.html is a flaky failure

• Status: RESOLVED
• Resolution: FIXED
• Component: Media

fast/mediastream/mediaElement-gc.html

Is a flaky failure on iOS 15 Release.

History: https://results.webkit.org/?suite=layout-tests&test=fast%2Fmediastream%2FmediaElement-gc.html

Result page: https://build.webkit.org/results/Apple-iOS-15-Simulator-Release-WK2-Tests/r283979%20(142)/results.html#

Diff:

--- /Volumes/Data/worker/ios-simulator-15-release-tests-wk2/build/layout-test-results/fast/mediastream/mediaElement-gc-expected.txt
+++ /Volumes/Data/worker/ios-simulator-15-release-tests-wk2/build/layout-test-results/fast/mediastream/mediaElement-gc-actual.txt
@@ -1,4 +1,4 @@
 
 PASS Keep alive a video element with a live srcObject
-PASS GC a video element with a live srcObject, then srcObject set to null
+FAIL GC a video element with a live srcObject, then srcObject set to null assert_true: expected true got false

[Radar WebKit Bug Importer]

<rdar://problem/84158942>

Marked test expectations https://trac.webkit.org/changeset/283996/webkit

I was not able to reproduce the failure locally on iOS 15 simulator using run-webkit-tests --force --ios-simulator --iterations 500 --exit-after-n-failures 1 fast/mediastream/mediaElement-gc.html

It looks like the same diff as this Bug 226991.

[youenn fablet]

Looking at the last failure:
- PASS Keep alive a video element with a live srcObject
- PASS GC a video element with a live srcObject, then srcObject set to null
+ FAIL Keep alive a video element with a live srcObject assert_equals: expected 1 but got 2
+ FAIL GC a video element with a live srcObject, then srcObject set to null assert_true: expected true got false

It seems there might be remaining media elements from the previous test.
We can update mediaElementCount to only count elements of a given document.

[youenn fablet]

Created attachment 449803 [details]
Patch

[EWS]

Committed r288462 (246348@main): <https://commits.webkit.org/246348@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 449803 [details].