Bug 277908 – [ iOS macOS Debug wk2 ] imported/w3c/web-platform-tests/mediacapture-insertable-streams/VideoTrackGenerator-with-window-tracks.https.html is a flaky text failure

• Component: WebRTC
• Status: RESOLVED FIXED

[Dawn Morningstar]

imported/w3c/web-platform-tests/mediacapture-insertable-streams/VideoTrackGenerator-with-window-tracks.https.html
is a flaky text failure on iOS, this has been a flaky text failure since it was added at 273497@main

History:
https://results.webkit.org/?platform=ios&recent=false&limit=50000&suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fmediacapture-insertable-streams%2FVideoTrackGenerator-with-window-tracks.https.html

Diff:
--- /Volumes/Data/worker/Apple-iOS-17-Simulator-Release-WK2-Tests/build/layout-test-results/imported/w3c/web-platform-tests/mediacapture-insertable-streams/VideoTrackGenerator-with-window-tracks.https-expected.txt
+++ /Volumes/Data/worker/Apple-iOS-17-Simulator-Release-WK2-Tests/build/layout-test-results/imported/w3c/web-platform-tests/mediacapture-insertable-streams/VideoTrackGenerator-with-window-tracks.https-actual.txt
@@ -5,5 +5,5 @@
 
 PASS Tests that frames are actually rendered correctly in a stream used for a video element.
 PASS Tests that frames are actually rendered correctly in a stream sent over a peer connection.
-PASS Tests that frames are sent correctly with RTCRtpEncodingParameters.scaleResolutionDownBy.
+FAIL Tests that frames are sent correctly with RTCRtpEncodingParameters.scaleResolutionDownBy. assert_less_than: Mismatched pixel expected a number less than 5 but got 25
 
Diff-url:
https://build.webkit.org/results/Apple-iOS-17-Simulator-Release-WK2-Tests/282073@main%20(4770)/imported/w3c/web-platform-tests/mediacapture-insertable-streams/VideoTrackGenerator-with-window-tracks.https-diff.txt

Test-run:
https://build.webkit.org/results/Apple-iOS-17-Simulator-Release-WK2-Tests/282073@main%20(4770)/results.html

[Radar WebKit Bug Importer]

<rdar://problem/133593781>

[Dawn Morningstar]

Pull request: https://github.com/WebKit/WebKit/pull/31992

[EWS]

Test gardening commit 282081@main (1eecd97d11e9): <https://commits.webkit.org/282081@main>

Reviewed commits have been landed. Closing PR #31992 and removing active labels.

[Marta Darbinyan]

Observing the flakiness in macOS queues as well that also appears as false positive failures in EWS. Modifying  test expectation to reflect the update in macOS too.

Log output:
PASS Tests that frames are sent correctly with RTCRtpEncodingParameters.scaleResolutionDownBy.
 8FAIL Tests that frames are sent correctly with RTCRtpEncodingParameters.scaleResolutionDownBy. promise_test: Unhandled rejection with value: object "DataCloneError: The object can not be cloned."

Link:
https://build.webkit.org/results/Apple-Sequoia-Debug-AppleSilicon-WK2-Tests/285188@main%20(68)/results.html

[EWS]

Test gardening commit 285208@main (43f48ff8a032): <https://commits.webkit.org/285208@main>

Reviewed commits have been landed. Closing PR #35226 and removing active labels.

[youenn fablet]

(In reply to Marta Darbinyan from comment #4)
> Observing the flakiness in macOS queues as well that also appears as false
> positive failures in EWS. Modifying  test expectation to reflect the update
> in macOS too.
> 
> Log output:
> PASS Tests that frames are sent correctly with
> RTCRtpEncodingParameters.scaleResolutionDownBy.
>  8FAIL Tests that frames are sent correctly with
> RTCRtpEncodingParameters.scaleResolutionDownBy. promise_test: Unhandled
> rejection with value: object "DataCloneError: The object can not be cloned."
> 
> Link:
> https://build.webkit.org/results/Apple-Sequoia-Debug-AppleSilicon-WK2-Tests/
> 285188@main%20(68)/results.html

This failure here seems related to `worker.postMessage({type:"getVideoFrame", track: e.track}, [e.track]);`
We should clone the track before transferring it,

[youenn fablet]

Submitted web-platform-tests pull request: https://github.com/web-platform-tests/wpt/pull/51324

[EWS]

Committed 292152@main (276a55cb1ea3): <https://commits.webkit.org/292152@main>

Reviewed commits have been landed. Closing PR #42397 and removing active labels.