will-change generated tests
#58487
+153
−8
Draft
will-change generated tests
#58487
Community-TC Integration / wpt-firefox-nightly-stability
succeeded
Mar 16, 2026 in 6m 40s
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: 2026-03-16T17:15:50.605Z
Resolved: 2026-03-16T17:20:06.712Z
Task Execution Time: 4 minutes, 16 seconds, 107 milliseconds
Task Status: completed
Reason Resolved: completed
TaskId: KzVaE8DASDmdSga5O8AdSw
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 2026-03-16 17:15:50.688Z] Task ID: KzVaE8DASDmdSga5O8AdSw
[taskcluster 2026-03-16 17:15:50.688Z] Worker ID: 1623999499298245716
[taskcluster 2026-03-16 17:15:50.688Z] Worker Group: us-east1-b
[taskcluster 2026-03-16 17:15:50.688Z] Worker Node Type: projects/757942385826/machineTypes/n2-standard-4
[taskcluster 2026-03-16 17:15:50.688Z] Worker Pool: proj-wpt/ci
[taskcluster 2026-03-16 17:15:50.688Z] Worker Version: 46.1.0
[taskcluster 2026-03-16 17:15:50.688Z] Public IP: 35.196.131.232
[taskcluster 2026-03-16 17:15:50.688Z] Hostname: proj-wpt-ci-stpktpipsyuwog73bgz-ha
[taskcluster 2026-03-16 17:15:51.877Z] === 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
...(6626 lines hidden)...
1:56.13 INFO | `e.style['will-change'] = "ALL, Auto" should not set the property value` | PASS | |
1:56.13 INFO | `e.style['will-change'] = "transform, All" should not set the property value` | PASS | |
1:56.13 INFO | `e.style['will-change'] = "All, transform" should not set the property value` | PASS | |
1:56.13 INFO | `e.style['will-change'] = "All, initial" should not set the property value` | PASS | |
1:56.13 INFO | `e.style['will-change'] = "All, INITIAL" should not set the property value` | PASS | |
1:56.13 INFO | `e.style['will-change'] = "All, Initial" should not set the property value` | PASS | |
1:56.13 INFO | `e.style['will-change'] = "All, inherit" should not set the property value` | PASS | |
1:56.13 INFO | `e.style['will-change'] = "All, INHERIT" should not set the property value` | PASS | |
1:56.13 INFO | `e.style['will-change'] = "All, Inherit" should not set the property value` | PASS | |
1:56.13 INFO | `e.style['will-change'] = "All, unset" should not set the property value` | PASS | |
1:56.13 INFO | `e.style['will-change'] = "All, UNSET" should not set the property value` | PASS | |
1:56.13 INFO | `e.style['will-change'] = "All, Unset" should not set the property value` | PASS | |
1:56.13 INFO | `e.style['will-change'] = "All, revert" should not set the property value` | PASS | |
1:56.13 INFO | `e.style['will-change'] = "All, REVERT" should not set the property value` | PASS | |
1:56.13 INFO | `e.style['will-change'] = "All, Revert" should not set the property value` | PASS | |
1:56.13 INFO | `e.style['will-change'] = "All, revert-layer" should not set the property value` | PASS | |
1:56.13 INFO | `e.style['will-change'] = "All, REVERT-LAYER" should not set the property value` | PASS | |
1:56.13 INFO | `e.style['will-change'] = "All, Revert-layer" should not set the property value` | PASS | |
1:56.13 INFO | `e.style['will-change'] = "All, revert-rule" should not set the property value` | PASS | |
1:56.13 INFO | `e.style['will-change'] = "All, REVERT-RULE" should not set the property value` | PASS | |
1:56.13 INFO | `e.style['will-change'] = "All, Revert-rule" should not set the property value` | PASS | |
1:56.13 INFO | `e.style['will-change'] = "All, default" should not set the property value` | PASS | |
1:56.13 INFO | `e.style['will-change'] = "All, DEFAULT" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "All, Default" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "All, will-change" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "All, WILL-CHANGE" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "All, Will-change" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "All, none" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "All, NONE" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "All, None" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "All, all" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "All, ALL" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "All, All" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "All, auto" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "All, AUTO" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "All, Auto" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "transform, auto" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, transform" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, initial" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, INITIAL" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, Initial" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, inherit" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, INHERIT" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, Inherit" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, unset" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, UNSET" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, Unset" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, revert" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, REVERT" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, Revert" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, revert-layer" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, REVERT-LAYER" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, Revert-layer" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, revert-rule" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, REVERT-RULE" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, Revert-rule" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, default" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, DEFAULT" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, Default" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, will-change" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, WILL-CHANGE" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, Will-change" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, none" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, NONE" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, None" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, all" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, ALL" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, All" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, auto" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, AUTO" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "auto, Auto" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "transform, AUTO" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, transform" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, initial" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, INITIAL" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, Initial" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, inherit" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, INHERIT" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, Inherit" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, unset" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, UNSET" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, Unset" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, revert" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, REVERT" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, Revert" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, revert-layer" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, REVERT-LAYER" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, Revert-layer" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, revert-rule" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, REVERT-RULE" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, Revert-rule" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, default" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, DEFAULT" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, Default" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, will-change" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, WILL-CHANGE" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, Will-change" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, none" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, NONE" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, None" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, all" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, ALL" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, All" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, auto" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, AUTO" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO, Auto" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "transform, Auto" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, transform" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, initial" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, INITIAL" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, Initial" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, inherit" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, INHERIT" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, Inherit" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, unset" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, UNSET" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, Unset" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, revert" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, REVERT" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, Revert" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, revert-layer" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, REVERT-LAYER" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, Revert-layer" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, revert-rule" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, REVERT-RULE" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, Revert-rule" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, default" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, DEFAULT" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, Default" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, will-change" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, WILL-CHANGE" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, Will-change" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, none" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, NONE" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, None" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, all" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, ALL" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, All" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, auto" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, AUTO" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto, Auto" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "will-change" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "WILL-CHANGE" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Will-change" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "none" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "NONE" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "None" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "all" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "ALL" should not set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "All" should not set the property value` | PASS | |
1:56.14 INFO
1:56.14 INFO ### /css/css-will-change/parsing/will-change-valid.html ###
1:56.14 INFO | Subtest | Results | Messages |
1:56.14 INFO |-------------------------------------------------------------------------------------------|---------|-------------------------------------------------------------------------------------------------------------------------------|
1:56.14 INFO | | OK | |
1:56.14 INFO | `e.style['will-change'] = "auto" should set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "AUTO" should set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Auto" should set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "scroll-position" should set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "SCROLL-POSITION" should set the property value` | FAIL | `assert_equals: serialization should be canonical expected "scroll-position" but got "SCROLL-POSITION"` |
1:56.14 INFO | `e.style['will-change'] = "Scroll-Position" should set the property value` | FAIL | `assert_equals: serialization should be canonical expected "scroll-position" but got "Scroll-Position"` |
1:56.14 INFO | `e.style['will-change'] = "contents" should set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "CONTENTS" should set the property value` | FAIL | `assert_equals: serialization should be canonical expected "contents" but got "CONTENTS"` |
1:56.14 INFO | `e.style['will-change'] = "Contents" should set the property value` | FAIL | `assert_equals: serialization should be canonical expected "contents" but got "Contents"` |
1:56.14 INFO | `e.style['will-change'] = "transform" should set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "background-color" should set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "TRANSFORM" should set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Not-A-Property" should set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "scroll-position, contents" should set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "SCROLL-POSITION, CONTENTS" should set the property value` | FAIL | `assert_equals: serialization should be canonical expected "scroll-position, contents" but got "SCROLL-POSITION, CONTENTS"` |
1:56.14 INFO | `e.style['will-change'] = "scroll-position, transform" should set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "SCROLL-POSITION, transform" should set the property value` | FAIL | `assert_equals: serialization should be canonical expected "scroll-position, transform" but got "SCROLL-POSITION, transform"` |
1:56.14 INFO | `e.style['will-change'] = "contents, transform" should set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "CONTENTS, transform" should set the property value` | FAIL | `assert_equals: serialization should be canonical expected "contents, transform" but got "CONTENTS, transform"` |
1:56.14 INFO | `e.style['will-change'] = "transform, background-color" should set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "transform, transform" should set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "TRANSFORM, transform" should set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "transform, TRANSFORM" should set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "TRANSFORM, TRANSFORM" should set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Not-A-Property, transform" should set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "transform, Not-A-Property" should set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "Not-A-Property, Not-A-Property" should set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "transform, --var" should set the property value` | PASS | |
1:56.14 INFO | `e.style['will-change'] = "--var, transform" should set the property value` | PASS | |
1:56.14 INFO
1:56.14 INFO ### /css/css-will-change/will-change-custom-property-no-effect.html ###
1:56.14 INFO | Subtest | Results | Messages |
1:56.14 INFO |----------------------------------------------------------------------------------------------------|---------|----------|
1:56.14 INFO | | OK | |
1:56.14 INFO | `will-change: custom property does not create a stacking context` | PASS | |
1:56.14 INFO | `will-change: custom property does not create a containing block for absolute positioned elements` | PASS | |
1:56.14 INFO | `will-change: custom property does not create a containing block for fixed positioned elements` | PASS | |
1:56.14 INFO
1:56.14 INFO ::: Running tests in a loop with restarts 10 times : PASS
1:56.14 INFO :::
1:56.14 INFO ::: Test verification PASS
1:56.14 INFO :::
[taskcluster 2026-03-16 17:20:05.465Z] === Task Finished ===
[taskcluster 2026-03-16 17:20:05.901Z] Successful task run with exit code: 0 completed in 255.213 seconds
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