[Webkit-unassigned] [Bug 228462] New: [ iOS Release ] imported/w3c/web-platform-tests/webrtc/RTCRtpReceiver-getContributingSources.https.html is a flaky failure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=228462

            Bug ID: 228462
           Summary: [ iOS Release ]
                    imported/w3c/web-platform-tests/webrtc/RTCRtpReceiver-
                    getContributingSources.https.html is a flaky failure
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: iPhone / iPad
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ayumi_kojima at apple.com

imported/w3c/web-platform-tests/webrtc/RTCRtpReceiver-getContributingSources.https.html

Is flaky failing on iOS 14 E Simulator wk2 Release.

History: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fwebrtc%2FRTCRtpReceiver-getContributingSources.https.html

Diff: 

==========================

--- /Volumes/Data/worker/ios-simulator-14-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/webrtc/RTCRtpReceiver-getContributingSources.https-expected.txt
+++ /Volumes/Data/worker/ios-simulator-14-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/webrtc/RTCRtpReceiver-getContributingSources.https-actual.txt
@@ -1,3 +1,5 @@
+
+Harness Error (FAIL), message = Unhandled rejection: The object is in an invalid state.

 PASS [audio] getContributingSources() returns an empty list in loopback call
 PASS [video] getContributingSources() returns an empty list in loopback call

==========================

This might be related to https://bugs.webkit.org/show_bug.cgi?id=213621

Unlike the failures on MacOS, the flaky failure on iOS seems to have started on around 6/30/21

I was not able to reproduce the failure on iOS 15 simulator on my local machine. The test timed out instead using:

run-webkit-tests --ios-simulator --exit-after-n-failures 2 --exit-after-n-crashes-or-timeouts 2 --iterations 500 imported/w3c/web-platform-tests/webrtc/RTCRtpReceiver-getContributingSources.https.html

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