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Test overflow-clip-margin keywords, negative offsets, and effect on scrollers #59009

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Merged
tabatkins merged 1 commit into from
Apr 6, 2026

Test overflow-clip-margin keywords, negative offsets, and effect on s…

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Merged

Test overflow-clip-margin keywords, negative offsets, and effect on scrollers #59009

Test overflow-clip-margin keywords, negative offsets, and effect on s…
b5c0a67
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Community-TC Integration / wpt-firefox-nightly-stability succeeded Apr 6, 2026 in 7m 37s

Community-TC (pull_request)

Verify that all tests affected by a pull request are stable when executed in firefox.

Details

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

Task Status

Started: 2026-04-06T23:05:38.154Z
Resolved: 2026-04-06T23:10:41.117Z
Task Execution Time: 5 minutes, 2 seconds, 963 milliseconds
Task Status: completed
Reason Resolved: completed
TaskId: WKmeRmMQRIap8rvDZrd3-Q
RunId: 0

Artifacts

- public/logs/live_backing.log
- public/logs/live.log
- public/results/checkrun.md

WPT Command: python3 ./wpt run --channel=nightly --verify --verify-no-chaos-mode --verify-repeat-loop=0 --verify-repeat-restart=10 --github-checks-text-file=/home/test/artifacts/checkrun.md --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 2026-04-06 23:05:38.222Z] Task ID: WKmeRmMQRIap8rvDZrd3-Q
[taskcluster 2026-04-06 23:05:38.222Z] Worker ID: 4524606109335001659
[taskcluster 2026-04-06 23:05:38.222Z] Worker Group: us-east1-d
[taskcluster 2026-04-06 23:05:38.222Z] Worker Node Type: projects/757942385826/machineTypes/n2-standard-4
[taskcluster 2026-04-06 23:05:38.222Z] Worker Pool: proj-wpt/ci
[taskcluster 2026-04-06 23:05:38.222Z] Worker Version: 46.1.0
[taskcluster 2026-04-06 23:05:38.222Z] Public IP: 35.196.174.49
[taskcluster 2026-04-06 23:05:38.222Z] Hostname: proj-wpt-ci-vju53ghbthor6coinil2na

[taskcluster 2026-04-06 23:05:39.248Z] === Task Starting ===
+ '[' '' ']'
+ '[' -d /etc/profile.d ']'
+ for i in /etc/profile.d/*.sh
+ '[' -r /etc/profile.d/01-locale-fix.sh ']'
+ . /etc/profile.d/01-locale-fix.sh
+++ /usr/bin/locale-check C.UTF-8
++ eval
+ for i in /etc/profile.d/*.sh
+ '[' -r /etc/profile.d/apps-bin-path.sh ']'
+ . /etc/profile.d/apps-bin-path.sh

...(2215 lines hidden)...


 1:14.11 TEST_START: /css/css-overflow/overflow-clip-margin-021.html
 1:14.12 pid:4567 1775517036566	Marionette	INFO	Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-021.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
 1:14.17 pid:4567 1775517036625	Marionette	INFO	No differences allowed
 1:14.18 TEST_END: PASS
 1:14.18 TEST_START: /css/css-overflow/overflow-clip-margin-022.html
 1:14.18 pid:4567 1775517036627	Marionette	INFO	Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-022.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
 1:14.24 pid:4567 1775517036693	Marionette	INFO	No differences allowed
 1:14.24 TEST_END: PASS
 1:14.25 INFO No more tests
 1:14.28 pid:4567 1775517036724	Marionette	INFO	Stopped listening on port 54361
 1:14.67 INFO Browser exited with return code -15
 1:14.53 INFO Closing logging queue
 1:14.53 INFO queue closed
 1:14.68 SUITE_END

web-platform-test
~~~~~~~~~~~~~~~~~
Ran 100 checks (100 tests)
Expected results: 50
Unexpected results: 50
  test: 50 (50 fail)

Error Summary
-------------
FAIL /css/css-overflow/overflow-clip-margin-016.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-016.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-016.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-016.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-016.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-016.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-016.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-016.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-016.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-016.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-016.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-016.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-016.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-016.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-016.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-016.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-016.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-016.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-016.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-016.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-017.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-017.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-017.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-017.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-017.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-017.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-017.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-017.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-017.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-017.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-017.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-017.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-017.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-017.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-017.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-017.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-017.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-017.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-017.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-017.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-018.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-018.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-018.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-018.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-018.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-018.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-018.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-018.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-018.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-018.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-018.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-018.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-018.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-018.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-018.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-018.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-018.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-018.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-018.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-018.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-019.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-019.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-019.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-019.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-019.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-019.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-019.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-019.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-019.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-019.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-019.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-019.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-019.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-019.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-019.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-019.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-019.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-019.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-019.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-019.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-020.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-020.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-020.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-020.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-020.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-020.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-020.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-020.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-020.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-020.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-020.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-020.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-020.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-020.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-020.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-020.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-020.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-020.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
FAIL /css/css-overflow/overflow-clip-margin-020.html - Testing http://web-platform.test:8000/css/css-overflow/overflow-clip-margin-020.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
Found 4160 pixels different, maximum difference per channel 255
 1:14.68 INFO Got 50 unexpected results, with 0 unexpected passes
 1:14.68 wptserve INFO Stopped http server on 127.0.0.1:8000
 1:14.68 wptserve INFO Stopped http server on 127.0.0.1:8001
 1:14.68 wptserve INFO Stopped http server on 127.0.0.1:8002
 1:14.68 wptserve INFO Stopped http server on 127.0.0.1:8003
 1:14.69 wptserve INFO Stopped http server on 127.0.0.1:8443
 1:14.70 wptserve INFO Stopped http server on 127.0.0.1:8444
 1:14.70 wptserve INFO Stopped http server on 127.0.0.1:8445
 1:14.70 wptserve INFO Stopped http server on 127.0.0.1:8446
 1:14.71 wptserve INFO Stopped http server on 127.0.0.1:9000
 1:14.71 wptserve INFO Stopped WebTransport over HTTP/3 server on 127.0.0.1:11000
 1:15.05 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 1:15.05 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 1:15.10 INFO Removed font: Ahem.ttf
 1:15.12 INFO Closing logging queue
 1:15.12 INFO queue closed
 1:15.14 INFO ::: Ran 10 of expected 10 iterations.
 1:15.14 INFO ## All results ##

 1:15.14 INFO ### /css/css-overflow/overflow-clip-margin-013.html ###
 1:15.14 INFO | Subtest | Results | Messages |
 1:15.14 INFO |---------|---------|----------|
 1:15.14 INFO |         | PASS    |          |
 1:15.14 INFO 
 1:15.14 INFO ### /css/css-overflow/overflow-clip-margin-014.html ###
 1:15.14 INFO | Subtest | Results | Messages |
 1:15.14 INFO |---------|---------|----------|
 1:15.14 INFO |         | PASS    |          |
 1:15.14 INFO 
 1:15.14 INFO ### /css/css-overflow/overflow-clip-margin-015.html ###
 1:15.14 INFO | Subtest | Results | Messages |
 1:15.14 INFO |---------|---------|----------|
 1:15.14 INFO |         | PASS    |          |
 1:15.14 INFO 
 1:15.14 INFO ### /css/css-overflow/overflow-clip-margin-016.html ###
 1:15.14 INFO | Subtest | Results | Messages |
 1:15.14 INFO |---------|---------|----------|
 1:15.14 INFO |         | FAIL    |          |
 1:15.14 INFO 
 1:15.14 INFO ### /css/css-overflow/overflow-clip-margin-017.html ###
 1:15.14 INFO | Subtest | Results | Messages |
 1:15.14 INFO |---------|---------|----------|
 1:15.14 INFO |         | FAIL    |          |
 1:15.14 INFO 
 1:15.14 INFO ### /css/css-overflow/overflow-clip-margin-018.html ###
 1:15.14 INFO | Subtest | Results | Messages |
 1:15.14 INFO |---------|---------|----------|
 1:15.14 INFO |         | FAIL    |          |
 1:15.14 INFO 
 1:15.14 INFO ### /css/css-overflow/overflow-clip-margin-019.html ###
 1:15.14 INFO | Subtest | Results | Messages |
 1:15.14 INFO |---------|---------|----------|
 1:15.14 INFO |         | FAIL    |          |
 1:15.14 INFO 
 1:15.14 INFO ### /css/css-overflow/overflow-clip-margin-020.html ###
 1:15.14 INFO | Subtest | Results | Messages |
 1:15.14 INFO |---------|---------|----------|
 1:15.14 INFO |         | FAIL    |          |
 1:15.14 INFO 
 1:15.14 INFO ### /css/css-overflow/overflow-clip-margin-021.html ###
 1:15.14 INFO | Subtest | Results | Messages |
 1:15.14 INFO |---------|---------|----------|
 1:15.14 INFO |         | PASS    |          |
 1:15.14 INFO 
 1:15.14 INFO ### /css/css-overflow/overflow-clip-margin-022.html ###
 1:15.14 INFO | Subtest | Results | Messages |
 1:15.14 INFO |---------|---------|----------|
 1:15.14 INFO |         | PASS    |          |
 1:15.14 INFO 
 1:15.14 INFO ::: Running tests in a loop with restarts 10 times : PASS
 1:15.14 INFO :::
 1:15.14 INFO ::: Test verification PASS
 1:15.14 INFO :::
[taskcluster 2026-04-06 23:10:39.530Z] === Task Finished ===
[taskcluster 2026-04-06 23:10:39.960Z] Successful task run with exit code: 0 completed in 301.738 seconds
View more details on Community-TC Integration