1623457 - Intermittent media-elements/track/track-element/track-cues-missed.html.ini WPT FAIL with Fission

Status: RESOLVED WORKSFORME

(Core :: Audio/Video: Playback, defect, P3)

Description

[Chris Peterson [:cpeterson]]

https://searchfox.org/mozilla-central/source/testing/web-platform/meta/html/semantics/embedded-content/media-elements/track/track-element/track-cues-missed.html.ini

if (processor == "x86") and fission and not debug: ["PASS", "FAIL"]

If this test fails only when Fission is enabled without WebRender, then we can WONTFIX this bug. We don't support Fission without WebRender.

Comment 1

[Chris Peterson [:cpeterson]]

The DOM Fission team is relying on feature teams to debug and fix Fission failures in their tests. If the failure looks like a bug in Fission's DOM or IPC changes, you can send the bug back to me.

We're hoping to enable Fission for a subset of Nightly users in early Q3, so we would like WPT tests to be green for Fission by end of Q2. Whether a particular test failure actually blocks shipping Fission is up to the discretion of the feature team. You all would know better than the DOM Fission which test failures are most important.

You can enable Fission when running WPT tests locally using mach wpt --enable-fission.

Comment 2

[Alastor Wu [:alwu]]

I'll check this issue.

Comment 3

[Alastor Wu [:alwu]]

This test doesn't mention that it would fail when Fission is enabled [1]

[1] https://searchfox.org/mozilla-central/source/testing/web-platform/meta/html/semantics/embedded-content/media-elements/track/track-element/track-cues-missed.html.ini

Comment 4

[Chris Peterson [:cpeterson]]

(In reply to Alastor Wu [:alwu] from comment #3)

This test doesn't mention that it would fail when Fission is enabled [1]

[1] https://searchfox.org/mozilla-central/source/testing/web-platform/meta/html/semantics/embedded-content/media-elements/track/track-element/track-cues-missed.html.ini

Looks like the test's expectation was changed (by the wpt sync bot) on 2020-03-18:

https://hg.mozilla.org/mozilla-central/rev/bce0bdab8c42f018c13f4d071dc03cf713d14847#l25.9

-    expected:
-      if (processor == "x86") and fission and not debug: ["PASS", "FAIL"]

I'll closed this bug as WORKSFORME.