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Add a test for container-query parent and slotted child host styles

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Add a test for container-query parent and slotted child host styles #56899

Add a test for container-query parent and slotted child host styles
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Community-TC Integration / wpt-firefox-nightly-results succeeded Dec 22, 2025 in 5m 32s

Community-TC (pull_request)

Collect results for all tests affected by a pull request in firefox.

Details

View task in Taskcluster | View logs in Taskcluster | View task group in Taskcluster

Task Status

Started: 2025-12-22T19:29:50.294Z
Resolved: 2025-12-22T19:32:53.802Z
Task Execution Time: 3 minutes, 3 seconds, 508 milliseconds
Task Status: completed
Reason Resolved: completed
RunId: 0

Artifacts

- public/logs/live_backing.log
- public/logs/live.log
- public/results/checkrun.md
- public/results/wpt_report.json.gz
- public/results/wpt_screenshot.txt.gz

WPT Command: python3 ./wpt run --channel=nightly --no-fail-on-unexpected --log-wptreport=../artifacts/wpt_report.json --log-wptscreenshot=../artifacts/wpt_screenshot.txt --affected base_head --log-mach-level=info --log-mach=- -y --no-pause --no-restart-on-unexpected --install-fonts --verify-log-full --no-headless --binary=/home/test/build/firefox/firefox firefox

[taskcluster 2025-12-22 19:29:50.491Z] Task ID: QGoBwyfrRXqEm4qv-GqiaQ
[taskcluster 2025-12-22 19:29:50.492Z] Worker ID: 5065596985900540653
[taskcluster 2025-12-22 19:29:50.492Z] Worker Group: us-east1-c
[taskcluster 2025-12-22 19:29:50.492Z] Worker Node Type: projects/757942385826/machineTypes/n2-standard-4
[taskcluster 2025-12-22 19:29:50.492Z] Worker Pool: proj-wpt/ci
[taskcluster 2025-12-22 19:29:50.492Z] Worker Version: 46.1.0
[taskcluster 2025-12-22 19:29:50.492Z] Public IP: 34.139.184.51
[taskcluster 2025-12-22 19:29:50.492Z] Hostname: proj-wpt-ci-vrq-vabjtda-y--u-tqcmg

ac811f28856d - Started downloading
8f84a9f2102e - Started downloading
ac811f28856d - Downloaded in 0.037 seconds
40516d781e70 - Started downloading
44ebbf800033 - Started downloading
44ebbf800033 - Downloaded in 0.05 seconds
8f84a9f2102e - Downloaded in 0.204 seconds
4f4fb700ef54 - Started downloading
4f4fb700ef54 - Downloaded in 0.002 seconds
a8884b21e40e - Started downloading
79c347416ee8 - Started downloading

...(311 lines hidden)...

Setting default value
Failed to read: session.screen0.edgeSnapThreshold
Setting default value
Failed to read: session.screen0.window.focus.alpha
Setting default value
Failed to read: session.screen0.window.unfocus.alpha
Setting default value
Failed to read: session.screen0.menu.alpha
Setting default value
Failed to read: session.screen0.menuDelay
Setting default value
Failed to read: session.screen0.tab.width
Setting default value
Failed to read: session.screen0.tooltipDelay
Setting default value
Failed to read: session.screen0.allowRemoteActions
Setting default value
Failed to read: session.screen0.clientMenu.usePixmap
Setting default value
Failed to read: session.screen0.tabs.usePixmap
Setting default value
Failed to read: session.screen0.tabs.maxOver
Setting default value
Failed to read: session.screen0.tabs.intitlebar
Setting default value
Failed to read: session.screen0.focusModel
Setting default value
Failed to read: session.screen0.tabFocusModel
Setting default value
Failed to read: session.screen0.focusNewWindows
Setting default value
Failed to read: session.screen0.focusSameHead
Setting default value
Failed to read: session.screen0.rowPlacementDirection
Setting default value
Failed to read: session.screen0.colPlacementDirection
Setting default value
Failed to read: session.screen0.windowPlacement
Setting default value
Failed to read: session.screen0.slit.acceptKdeDockapps
Setting default value
Failed to read: session.screen0.slit.autoHide
Setting default value
Failed to read: session.screen0.slit.maxOver
Setting default value
Failed to read: session.screen0.slit.placement
Setting default value
Failed to read: session.screen0.slit.alpha
Setting default value
Failed to read: session.screen0.slit.onhead
Setting default value
Failed to read: session.screen0.slit.layer
Setting default value
Failed to read: session.screen0.toolbar.autoHide
Setting default value
Failed to read: session.screen0.toolbar.maxOver
Setting default value
Failed to read: session.screen0.toolbar.visible
Setting default value
Failed to read: session.screen0.toolbar.alpha
Setting default value
Failed to read: session.screen0.toolbar.layer
Setting default value
Failed to read: session.screen0.toolbar.onhead
Setting default value
Failed to read: session.screen0.toolbar.placement
Setting default value
Failed to read: session.screen0.toolbar.height
Setting default value
Failed to read: session.screen0.iconbar.mode
Setting default value
Failed to read: session.screen0.iconbar.alignment
Setting default value
Failed to read: session.screen0.iconbar.iconWidth
Setting default value
Failed to read: session.screen0.iconbar.iconTextPadding
Setting default value
Failed to read: session.screen0.iconbar.usePixmap
Setting default value
 0:00.00 INFO Set tests_root to /home/test/web-platform-tests
 0:00.00 INFO Set metadata_root to /home/test/web-platform-tests
 0:00.00 INFO Set manifest_update to True
 0:00.00 INFO Set manifest_download to True
 0:11.38 INFO Identified 2 affected tests
 0:11.38 INFO Using certutil /usr/bin/certutil
 0:11.38 INFO Downloading geckodriver
 0:11.38 INFO Attempting to install webdriver from nightly
 0:11.84 INFO Extracted geckodriver to /home/test/web-platform-tests/_venv3/bin/geckodriver
 0:11.84 INFO Installed b'geckodriver 0.36.0 (7c6e6dc03dc0 2025-12-09 16:28 +0200)'
 0:15.97 INFO Getting profile data from git ref 989057eec3a07ce68a15c2bf2eb1e137dd19d5f3
 0:16.24 INFO Test prefs downloaded to /home/test/web-platform-tests/_venv3/profiles/989057eec3a07ce68a15c2bf2eb1e137dd19d5f3/148.0a1
[1321] Sandbox: CanCreateUserNamespace() clone() failure: EPERM
 0:16.35 mozversion INFO application_buildid: 20251222091524
 0:16.35 mozversion INFO application_changeset: 1393f3da1e83a14f16cb9f63880ee3e532982a7b
 0:16.35 mozversion INFO application_display_name: Firefox Nightly
 0:16.35 mozversion INFO application_id: {ec8030f7-c20a-464f-9b0e-13a3a9e97384}
 0:16.35 mozversion INFO application_name: Firefox
 0:16.35 mozversion INFO application_remotingname: firefox-nightly
 0:16.35 mozversion INFO application_repository: https://hg.mozilla.org/mozilla-central
 0:16.35 mozversion INFO application_vendor: Mozilla
 0:16.35 mozversion INFO application_version: 148.0a1
 0:16.35 mozversion INFO platform_buildid: 20251222091524
 0:16.35 mozversion INFO platform_changeset: 1393f3da1e83a14f16cb9f63880ee3e532982a7b
 0:16.35 mozversion INFO platform_repository: https://hg.mozilla.org/mozilla-central
 0:16.35 mozversion INFO platform_version: 148.0a1
 0:21.71 INFO Installed font: Ahem.ttf
 0:22.61 wptserve INFO Starting http server on http://127.0.0.1:8001
 0:22.61 wptserve INFO Starting http server on http://127.0.0.1:8002
 0:22.64 wptserve INFO Starting http server on http://127.0.0.1:8003
 0:22.65 wptserve INFO Starting http server on http://127.0.0.1:8000
 0:22.66 wptserve INFO Starting https server on https://127.0.0.1:8444
 0:22.69 wptserve INFO Starting https server on https://127.0.0.1:8445
 0:22.69 wptserve INFO Starting https server on https://127.0.0.1:8443
 0:22.72 wptserve INFO Starting https server on https://127.0.0.1:8446
 0:22.72 wptserve INFO Create socket on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 0:22.72 wptserve INFO Create socket on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 0:22.72 wptserve INFO Bind on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 0:22.72 wptserve INFO Listen on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 0:22.73 wptserve INFO Bind on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 0:22.73 wptserve INFO Listen on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 0:22.73 wptserve INFO Starting http2 server on https://127.0.0.1:9000
 0:22.81 wptserve INFO Starting WebTransport over HTTP/3 server on 127.0.0.1:11000
 0:23.17 SUITE_START: web-platform-test - running 2 tests
mem avail: 14396 of 15806 MiB (91.08%), swap free:    0 of    0 MiB ( 0.00%)
 0:53.67 INFO Using 1 child processes
 0:53.68 INFO Setting up ssl
 0:53.70 certutil Full command: /usr/bin/certutil -N -d /tmp/tmpt6xr7kef.mozrunner -f /tmp/tmpt6xr7kef.mozrunner/.crtdbpw
certutil b''
 0:53.72 certutil b''
 0:53.73 certutil b'\nCertificate Nickname                                         Trust Attributes\n                                                             SSL,S/MIME,JAR/XPI\n\nweb-platform-tests                                           CT,, \n'
 0:53.73 INFO Application command: /home/test/build/firefox/firefox --marionette --remote-allow-system-access about:blank -profile /tmp/tmp869imjn4
 0:53.74 INFO Starting runner
 0:53.74 pid:1425 Full command: /home/test/build/firefox/firefox --marionette --remote-allow-system-access about:blank
pid:1425 [1425] Sandbox: CanCreateUserNamespace() clone() failure: EPERM
 0:54.29 pid:1425 1766431965118	Marionette	INFO	Marionette enabled
 0:54.38 pid:1425 1766431965214	Marionette	INFO	Listening on port 50543
Failed to read: session.screen0.titlebar.left
Setting default value
Failed to read: session.screen0.titlebar.right
Setting default value
 0:56.97 pid:1425 console.error: services.settings:
 0:56.97 pid:1425   Message: EmptyDatabaseError: "main/nimbus-desktop-experiments" has not been synced yet
 0:56.97 pid:1425   Stack:
 0:56.97 pid:1425     EmptyDatabaseError@resource://services-settings/Database.sys.mjs:19:5
 0:56.97 pid:1425 list@resource://services-settings/Database.sys.mjs:96:13
 0:57.14 pid:1425 console.warn: BackupService: "There was an error while trying to get the Document's directory" [Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIProperties.get]"  nsresult: "0x80004005 (NS_ERROR_FAILURE)"  location: "JS frame :: resource:///modules/backup/BackupService.sys.mjs :: get docsDirFolderPath :: line 1245"  data: no]
 0:57.35 TEST_START: /css/css-conditional/container-queries/container-for-shadow-dom.html
 0:57.98 TEST_END: Test OK. Subtests passed 22/22. Unexpected 0
 0:57.98 TEST_START: /css/css-conditional/container-queries/style-container-for-shadow-dom.html
 0:57.98 INFO Closing window 1ae60f22-84c1-46a9-84e6-313cd62ffdb4
 0:58.20 TEST_END: ERROR, expected OK - Error: assert_implements: Basic support for style container queries required undefined
assert_implements_style_container_queries@http://web-platform.test:8000/css/css-conditional/container-queries/support/cq-testcommon.js:21:20
@http://web-platform.test:8000/css/css-conditional/container-queries/style-container-for-shadow-dom.html:216:5
Tests.prototype.setup@http://web-platform.test:8000/resources/testharness.js:3773:17
setup@http://web-platform.test:8000/resources/testharness.js:1126:15
@http://web-platform.test:8000/css/css-conditional/container-queries/style-container-for-shadow-dom.html:215:8

 0:58.20 INFO No more tests
 0:58.20 pid:1425 1766431969031	Marionette	INFO	Stopped listening on port 50543
 0:58.85 INFO Browser exited with return code -15
 0:58.73 INFO Closing logging queue
 0:58.73 INFO queue closed
 0:58.86 SUITE_END

web-platform-test
~~~~~~~~~~~~~~~~~
Ran 24 checks (22 subtests, 2 tests)
Expected results: 23
Unexpected results: 1
  test: 1 (1 error)

Unexpected Results
------------------
/css/css-conditional/container-queries/style-container-for-shadow-dom.html
  ERROR /css/css-conditional/container-queries/style-container-for-shadow-dom.html - Error: assert_implements: Basic support for style container queries required undefined
assert_implements_style_container_queries@http://web-platform.test:8000/css/css-conditional/container-queries/support/cq-testcommon.js:21:20
@http://web-platform.test:8000/css/css-conditional/container-queries/style-container-for-shadow-dom.html:216:5
Tests.prototype.setup@http://web-platform.test:8000/resources/testharness.js:3773:17
setup@http://web-platform.test:8000/resources/testharness.js:1126:15
@http://web-platform.test:8000/css/css-conditional/container-queries/style-container-for-shadow-dom.html:215:8
 0:58.86 INFO Got 1 unexpected results, with 0 unexpected passes
 0:58.86 wptserve INFO Stopped http server on 127.0.0.1:8000
 0:58.86 wptserve INFO Stopped http server on 127.0.0.1:8001
 0:58.86 wptserve INFO Stopped http server on 127.0.0.1:8002
 0:58.86 wptserve INFO Stopped http server on 127.0.0.1:8003
 0:58.87 wptserve INFO Stopped http server on 127.0.0.1:8444
 0:58.87 wptserve INFO Stopped http server on 127.0.0.1:8443
 0:58.87 wptserve INFO Stopped http server on 127.0.0.1:8445
 0:58.88 wptserve INFO Stopped http server on 127.0.0.1:8446
 0:58.88 wptserve INFO Stopped http server on 127.0.0.1:9000
 0:58.88 wptserve INFO Stopped WebTransport over HTTP/3 server on 127.0.0.1:11000
 0:59.21 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 0:59.21 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 0:59.25 INFO Removed font: Ahem.ttf
 0:59.27 INFO Closing logging queue
 0:59.27 INFO queue closed
 0:59.27 INFO Tolerating 1 unexpected results
[taskcluster 2025-12-22 19:32:51.870Z] === Task Finished ===
[taskcluster 2025-12-22 19:32:52.953Z] Successful task run with exit code: 0 completed in 182.464 seconds
View more details on Community-TC Integration