201509 2019-09-05 11:27:10 -0700 [iOS] Layout Test imported/w3c/web-platform-tests/html/semantics/embedded-content/the-video-element/video_timeupdate_on_seek.html is failing 2019-09-06 05:39:30 -0700 1 1 1 Unclassified WebKit New Bugs Other Unspecified Unspecified NEW P2 Normal --- 1 ryanhaddad webkit-unassigned aboya webkit-bot-watchers-bugzilla oldest_to_newest 1568186 0 ryanhaddad 2019-09-05 11:27:10 -0700 The following layout test is failing on iOS Simulator imported/w3c/web-platform-tests/html/semantics/embedded-content/the-video-element/video_timeupdate_on_seek.html Probable cause: This test was a consistent timeout when it was added in r249205. The test stopped timing out and became a consistent failure with/around r249350. Flakiness Dashboard: https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=imported%2Fw3c%2Fweb-platform-tests%2Fhtml%2Fsemantics%2Fembedded-content%2Fthe-video-element%2Fvideo_timeupdate_on_seek.html --- /Volumes/Data/slave/ios-simulator-12-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/html/semantics/embedded-content/the-video-element/video_timeupdate_on_seek-expected.txt +++ /Volumes/Data/slave/ios-simulator-12-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/html/semantics/embedded-content/the-video-element/video_timeupdate_on_seek-actual.txt @@ -1,4 +1,3 @@ PASS timeupdate is emitted after a seek before the data is received: mp4. -PASS timeupdate is emitted after a seek before the data is received: ogv. 1568188 1 ryanhaddad 2019-09-05 11:29:33 -0700 Updated test expectations in https://trac.webkit.org/changeset/249537/webkit. 1568485 2 aboya 2019-09-06 05:39:30 -0700 As far as I could test back then, the test timeouts in Mac (and now in iOS) because the HTMLMediaElement keeps trying to load the source URL even after the "src" property has been changed or the element has been removed from DOM, and the test framework keeps waiting for that, which never happens because the HTTP endpoint used in the test times out on purpose.