Intermittent UI test failure - audioPlaybackSystemNotificationTest, mediaSystemNotificationInPrivateModeTest

[sv-ohorvath]

Firebase Test Run:

mediaSystemNotificationInPrivateModeTest flaky 1x on Master 6/25: Firebase link

audioPlaybackSystemNotificationTest flaky 1x on Master 7/7: Firebase link

Stacktrace:

androidx.test.espresso.AmbiguousViewMatcherException: 'with id: org.mozilla.fenix.debug:id/mozac_browser_tabstray_close' matches multiple views in the hierarchy.

Build:

┆Issue is synchronized with this Jira Task

[sv-ohorvath]

audioPlaybackSystemNotificationTest flaky again on 7/13: link

[sv-ohorvath]

From the logs it seems the same as #20296, the cause indicates there are two identical tabs visible. I will see if I can reproduce it manually.

[sv-ohorvath]

Cannot reproduce it manually, or by running the test locally.

[AndiAJ]

mediaSystemNotificationInPrivateModeTest flaky 1x on Master 7/20 Firebase link

[sv-ohorvath]

Last report of this issue was July 23. I think it may have been something fixed in the meantime. I'll close these issues (related ones as well) until it comes up again.

[sv-ohorvath]

Ok, the problem persists, #15624 has the same error.

[AndiAJ]

Flaky 1x on 9/30 Main Firebase link

androidx.test.espresso.AmbiguousViewMatcherException: 'with id is org.mozilla.fenix.debug:id/mozac_browser_tabstray_close' matches multiple views in the hierarchy.
Problem views are marked with 'MATCHES' below.
View Hierarchy:
+>DecorView{id=-1, visibility=VISIBLE, width=1080, height=1920, has-focus=false, has-focusable=true, has-window-focus=true, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, layout-params={(0,0)(fillxfill) gr=CENTER sim={adjust=pan} ty=APPLICATION fmt=TRANSPARENT wanim=0x7f140009
fl=DIM_BEHIND LAYOUT_IN_SCREEN SECURE LAYOUT_INSET_DECOR HARDWARE_ACCELERATED DRAWS_SYSTEM_BAR_BACKGROUNDS
pfl=FORCE_DRAW_STATUS_BAR_BACKGROUND
vsysui=LIGHT_NAVIGATION_BAR}, tag=null, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0, child-count=2}
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[sv-ohorvath]

This issue appears to be related to multiple tests (duplicate tabs title, close button or tab item):
https://github.com/mozilla-mobile/fenix/issues?q=is%3Aissue+is%3Aopen+androidx.test.espresso.AmbiguousViewMatcherException%3A

[sv-ohorvath]

Flaky on 10/1: logs

[AndiAJ]

Fixed with #21704