Bug 201588

Summary:

Flaky Test: imported/w3c/web-platform-tests/html/semantics/embedded-content/media-elements/ready-states/autoplay-with-slow-text-tracks.html

Product:

WebKit

Reporter:

WebKit Commit Bot <commit-queue>

Component:

Tools / Tests

Assignee:

WebKit Commit Bot <commit-queue>

Status:

NEW ---

Severity:

Normal

CC:

eric.carlson, jer.noble, webkit-bot-watchers-bugzilla, youennf

Priority:

Version:

WebKit Nightly Build

Hardware:

Unspecified

OS:

Unspecified

See Also:

https://bugs.webkit.org/show_bug.cgi?id=176929

Bug Depends on:

Bug Blocks:

50856

Attachments:

Description	Flags
Archive of layout-test-results from webkit-cq-01	none

Description WebKit Commit Bot 2019-09-07 22:22:46 PDT

This is an automatically generated bug from the commit-queue.
imported/w3c/web-platform-tests/html/semantics/embedded-content/media-elements/ready-states/autoplay-with-slow-text-tracks.html has been flaky on the commit-queue.

imported/w3c/web-platform-tests/html/semantics/embedded-content/media-elements/ready-states/autoplay-with-slow-text-tracks.html was authored by youennf@gmail.com.
https://trac.webkit.org/browser/trunk/LayoutTests/imported/w3c/web-platform-tests/html/semantics/embedded-content/media-elements/ready-states/autoplay-with-slow-text-tracks.html

The commit-queue just saw imported/w3c/web-platform-tests/html/semantics/embedded-content/media-elements/ready-states/autoplay-with-slow-text-tracks.html flake (text diff) while processing attachment 378311 [details] on bug 201584.
Bot: webkit-cq-01  Port: <class 'webkitpy.common.config.ports.MacPort'>  Platform: Mac OS X 10.13.6

The bots will update this with information from each new failure.

If you believe this bug to be fixed or invalid, feel free to close.  The bots will re-open if the flake re-occurs.

If you would like to track this test fix with another bug, please close this bug as a duplicate.  The bots will follow the duplicate chain when making future comments.

Comment 1 WebKit Commit Bot 2019-09-07 22:22:48 PDT

Created attachment 378319 [details]
Archive of layout-test-results from webkit-cq-01

Comment 2 Alexey Proskuryakov 2019-09-10 08:58:36 PDT

This test has been very flaky on macOS Mojave for a long time, see bug 176929. Failures on High Sierra aren't new either, but post-commit bots only see them on WebKit1 or GuardMalloc bots, not on Release WebKit2 like here.

The diff appears to always be the same though.

@@ -1,4 +1,3 @@
-CONSOLE MESSAGE: line 31: TypeError: null is not an object (evaluating 'track.track.cues.length')
 CONSOLE MESSAGE: line 31: TypeError: null is not an object (evaluating 'track.track.cues.length')
 CONSOLE MESSAGE: line 31: TypeError: null is not an object (evaluating 'track.track.cues.length')
 CONSOLE MESSAGE: line 31: TypeError: null is not an object (evaluating 'track.track.cues.length')