Bug 297276

Summary: New Test [ macOS ] 4x imported/w3c/web-platform-tests/css/css-text-decor/ (layout-tests) tests are constant image failures
Product: WebKit Reporter: Bryan Medina <bmedina2>
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal CC: bfulgham, simon.fraser, webkit-bot-watchers-bugzilla, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Diff for under-left-001
none
Diff for under-right-001
none
Diff for over-left-001
none
Diff for over-right-001 none

Bryan Medina
Reported 2025-08-12 10:07:06 PDT
imported/w3c/web-platform-tests/css/css-text-decor/text-emphasis-position-over-left-001.xht imported/w3c/web-platform-tests/css/css-text-decor/text-emphasis-position-over-right-001.xht imported/w3c/web-platform-tests/css/css-text-decor/text-emphasis-position-under-left-001.xht imported/w3c/web-platform-tests/css/css-text-decor/text-emphasis-position-under-right-001.xht are constant image failures on macOS HISTORY: https://results.webkit.org/?suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-text-decor%2Ftext-emphasis-position-over-left-001.xht&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-text-decor%2Ftext-emphasis-position-over-right-001.xht&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-text-decor%2Ftext-emphasis-position-under-right-001.xht&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-text-decor%2Ftext-emphasis-position-under-left-001.xht IMAGE DIFF URL: Diffs can be found at this url https://build.webkit.org/results/Apple-Sequoia-Release-WK2-Tests/298561%40main%20(3594)/results.html Image diffs for each test will be attached to bug
Attachments
Diff for under-left-001 (22.36 KB, application/zip)
2025-08-12 10:19 PDT, Bryan Medina 		no flags
Details
Diff for under-right-001 (22.37 KB, application/zip)
2025-08-12 10:19 PDT, Bryan Medina 		no flags
Details
Diff for over-left-001 (22.09 KB, application/zip)
2025-08-12 10:20 PDT, Bryan Medina 		no flags
Details
Diff for over-right-001 (22.10 KB, application/zip)
2025-08-12 10:20 PDT, Bryan Medina 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2025-08-12 10:07:47 PDT
<rdar://problem/158141596>
Bryan Medina
Comment 2 2025-08-12 10:09:10 PDT
Image failure was reproduced at macOS Release ToT using the following command: run-webkit-tests <test_name_here>
Bryan Medina
Comment 3 2025-08-12 10:19:29 PDT
Created attachment 476372 [details] Diff for under-left-001
Bryan Medina
Comment 4 2025-08-12 10:19:58 PDT
Created attachment 476373 [details] Diff for under-right-001
Bryan Medina
Comment 5 2025-08-12 10:20:16 PDT
Created attachment 476374 [details] Diff for over-left-001
Bryan Medina
Comment 6 2025-08-12 10:20:29 PDT
Created attachment 476375 [details] Diff for over-right-001
EWS
Comment 7 2025-08-12 10:36:23 PDT
Test gardening commit 298572@main (6cd0e53bb99a): <https://commits.webkit.org/298572@main> Reviewed commits have been landed. Closing PR #49279 and removing active labels.
Alexey Proskuryakov
Comment 8 2025-08-12 16:01:55 PDT
I'm skeptical of 292044@main being the regression point.
alan
Comment 9 2025-08-12 16:28:16 PDT
292044@main looks like the first revision on Sonoma where we ran this set. Certainly not a regression point.
alan
Comment 10 2025-08-12 16:42:20 PDT
The 1px diff is caused by a difference in handing non-integral vertical values in ruby vs. regular inline content with emphasis.
Bryan Medina
Comment 11 2025-08-14 13:19:46 PDT
It looks like the re-sync of these tests from upstream at https://commits.webkit.org/281435@main turned them from a constant pass to a constant failure.
EWS
Comment 12 2026-02-23 16:33:01 PST
Test gardening commit 308086@main (fa3c94e29430): <https://commits.webkit.org/308086@main> Reviewed commits have been landed. Closing PR #59274 and removing active labels.
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