The following layout test is flaky on MacOS imported/w3c/web-platform-tests/media-source/mediasource-changetype-play.html Probable cause: Test was added in: https://trac.webkit.org/changeset/234940/webkit Test can be reproduced with: run-webkit-tests --root debug-236084 imported/w3c/web-platform-tests/media-source/mediasource-changetype-play.html --iterations 500 -f --debug The test will have a failure less than 1/100 times. Flakiness Dashboard: https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=imported%2Fw3c%2Fweb-platform-tests%2Fmedia-source%2Fmediasource-changetype-play.html Diff: --- /Volumes/Data/slave/highsierra-release-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/media-source/mediasource-changetype-play-expected.txt +++ /Volumes/Data/slave/highsierra-release-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/media-source/mediasource-changetype-play-actual.txt @@ -1,8 +1,10 @@ + +Harness Error (TIMEOUT), message = null FAIL Check if browser supports enough test media types assert_true: Browser doesn't support at least 2 types of video test media expected true got false PASS Test audio-only changeType for audio/mp4; codecs="mp4a.40.2" <-> audio/mp4; codecs="mp4a.40.2" PASS Test audio-only changeType for audio/mp4; codecs="mp4a.40.2" <-> audio/mpeg PASS Test audio-only changeType for audio/mpeg <-> audio/mp4; codecs="mp4a.40.2" -PASS Test audio-only changeType for audio/mpeg <-> audio/mpeg +TIMEOUT Test audio-only changeType for audio/mpeg <-> audio/mpeg Test timed out PASS Test video-only changeType for video/mp4; codecs="avc1.4D4001" <-> video/mp4; codecs="avc1.4D4001"
<rdar://problem/45602861>
Marked test as flaky in https://trac.webkit.org/r239382