2048959 - Perma TEST-UNEXPECTED-FAIL | layout/style/test/test_value_cloning.html | serialization should be nonempty for -webkit-clip-path: ellipse(closest-corner farthest-corner) - didn't expect "", but got it when Gecko 154 merges to Beta on 2026-07-20

Status: RESOLVED FIXED

(Core :: CSS Parsing and Computation, defect)

Description

[Atila Butkovits]

Central-as-beta-simulation

How to run these simulations

Failure log

[task 2026-06-19T10:57:06.839+00:00] 10:57:06     INFO - GECKO(19140) | ### XPCOM_MEM_BLOAT_LOG defined -- logging bloat/leaks to /tmp/tmpxo1wrrrb.mozrunner/runtests_leaks_tab_pid19497.log
[task 2026-06-19T10:57:06.892+00:00] 10:57:06     INFO - GECKO(19140) | -----------------------------------------------------
[task 2026-06-19T10:57:06.893+00:00] 10:57:06     INFO - GECKO(19140) | Suppressions used:
[task 2026-06-19T10:57:06.893+00:00] 10:57:06     INFO - GECKO(19140) |   count      bytes template
[task 2026-06-19T10:57:06.894+00:00] 10:57:06     INFO - GECKO(19140) |       3        320 libfontconfig.so
[task 2026-06-19T10:57:06.894+00:00] 10:57:06     INFO - GECKO(19140) |      31      16288 style::global_style_data
[task 2026-06-19T10:57:06.895+00:00] 10:57:06     INFO - GECKO(19140) |       1       9496 style::sharing::SHARING_CACHE_KEY
[task 2026-06-19T10:57:06.895+00:00] 10:57:06     INFO - GECKO(19140) |       1       4104 style::bloom::BLOOM_KEY
[task 2026-06-19T10:57:06.896+00:00] 10:57:06     INFO - GECKO(19140) | -----------------------------------------------------
[task 2026-06-19T10:57:10.688+00:00] 10:57:10     INFO - TEST-INFO | started process screentopng
[task 2026-06-19T10:57:10.896+00:00] 10:57:10     INFO - TEST-INFO | screentopng: exit 0
[task 2026-06-19T10:57:10.897+00:00] 10:57:10     INFO - TEST-UNEXPECTED-FAIL | layout/style/test/test_value_cloning.html | serialization should be nonempty for -webkit-clip-path: ellipse(closest-corner farthest-corner) - didn't expect "", but got it
[task 2026-06-19T10:57:10.897+00:00] 10:57:10     INFO -     SimpleTest.isnot@SimpleTest/SimpleTest.js:526:14
[task 2026-06-19T10:57:10.897+00:00] 10:57:10     INFO -     iframe_loaded@layout/style/test/test_value_cloning.html:124:12
[task 2026-06-19T10:57:11.667+00:00] 10:57:11     INFO - Not taking screenshot here: see the one that was previously logged
[task 2026-06-19T10:57:11.668+00:00] 10:57:11     INFO - TEST-UNEXPECTED-FAIL | layout/style/test/test_value_cloning.html | serialization should be nonempty for shape-outside: ellipse(closest-corner farthest-corner) - didn't expect "", but got it
[task 2026-06-19T10:57:11.668+00:00] 10:57:11     INFO -     SimpleTest.isnot@SimpleTest/SimpleTest.js:526:14
[task 2026-06-19T10:57:11.668+00:00] 10:57:11     INFO -     iframe_loaded@layout/style/test/test_value_cloning.html:124:12
[task 2026-06-19T10:57:11.830+00:00] 10:57:11     INFO - Not taking screenshot here: see the one that was previously logged
[task 2026-06-19T10:57:11.831+00:00] 10:57:11     INFO - TEST-UNEXPECTED-FAIL | layout/style/test/test_value_cloning.html | serialization should be nonempty for clip-path: ellipse(closest-corner farthest-corner) - didn't expect "", but got it
[task 2026-06-19T10:57:11.831+00:00] 10:57:11     INFO -     SimpleTest.isnot@SimpleTest/SimpleTest.js:526:14
[task 2026-06-19T10:57:11.831+00:00] 10:57:11     INFO -     iframe_loaded@layout/style/test/test_value_cloning.html:124:12
[task 2026-06-19T10:57:12.497+00:00] 10:57:12     INFO - Not taking screenshot here: see the one that was previously logged
[task 2026-06-19T10:57:12.497+00:00] 10:57:12     INFO - TEST-UNEXPECTED-FAIL | layout/style/test/test_value_cloning.html | serialization should be nonempty for offset-path: ellipse(closest-corner farthest-corner) - didn't expect "", but got it
[task 2026-06-19T10:57:12.497+00:00] 10:57:12     INFO -     SimpleTest.isnot@SimpleTest/SimpleTest.js:526:14
[task 2026-06-19T10:57:12.497+00:00] 10:57:12     INFO -     iframe_loaded@layout/style/test/test_value_cloning.html:124:12
[task 2026-06-19T10:57:16.349+00:00] 10:57:16     INFO - TEST-PASS | layout/style/test/test_value_cloning.html | serialization should match when cloning link-parameters: param(--foo), param(--bar)

Comment 1

[BugBot [:suhaib / :marco]]

:descalante, since you are the author of the regressor, bug 2045278, could you take a look? Also, could you set the severity field?

For more information, please visit BugBot documentation.

Comment 2

[Diego Ciudad Real Escalante [:descalante]]

Righttt, looks like I forgot to update the test prefs (sorry)

Comment 3

[Diego Ciudad Real Escalante [:descalante]]

Attachment: Bug 2048959 - Enable ellipse corner parsing and computation for layout mochitests. r=emilio,oriol

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://github.com/mozilla-firefox/firefox/commit/3853f3f0a8a9
https://hg.mozilla.org/integration/autoland/rev/5ebe17a367f8
Enable ellipse corner parsing and computation for layout mochitests. r=emilio,firefox-style-system-reviewers

Comment 5

[Serban Stanca [:SerbanS]]

Patch is working in today's central as beta simulation.

Comment 6

[Serban Stanca [:SerbanS]]

https://hg.mozilla.org/mozilla-central/rev/5ebe17a367f8

Comment 7

[Diego Ciudad Real Escalante [:descalante]]

Attachment: Bug 2048959 - Enable ellipse corner parsing and computation for layout mochitests.

Original Revision: https://phabricator.services.mozilla.com/D307878

Comment 8

[Phabricator Automation]

firefox-beta Uplift Approval Request

• User impact if declined/Reason for urgency: The feature landed in 153 bug 2037673 however, concerns about the spec surfaced and we decided to put it behind a nightly-only pref. We also need to uplift this patch as it fixes test metadata to include the pref that turns this on when relevant.
• Code covered by automated testing?: yes
• Fix verified in Nightly?: yes
• Needs manual QE testing?: no
• Steps to reproduce for manual QE testing:
• Risk associated with taking this patch: low
• Explanation of risk level: Automated tests already cover possible failures
• String changes made/needed?: N/A
• Is Android affected?: no

Comment 9

[Pulsebot]

https://github.com/mozilla-firefox/firefox/commit/391c9f9d63f0
https://hg.mozilla.org/releases/mozilla-beta/rev/7831b703c7e2