Bug 295720

Summary: REGRESSION (297118@main): [ iPadOS ] 17x fast/page-color-sampling (layout-tests) are constant text failures
Product: WebKit Reporter: Bryan Medina <bmedina2>
Component: New BugsAssignee: Wenson Hsieh <wenson_hsieh>
Status: RESOLVED FIXED    
Severity: Normal CC: jenner, webkit-bot-watchers-bugzilla, webkit-bug-importer, wenson_hsieh
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
See Also: https://bugs.webkit.org/show_bug.cgi?id=295569

Bryan Medina
Reported 2025-07-10 10:47:34 PDT
17 fast/page-color-sampling (layout-tests) are constant text failures on iPadOS HISTORY: https://results.webkit.org/?suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&test=fast%2Fpage-color-sampling%2Fcolor-sampling-fixed-ancestor-with-relative-container.html&test=fast%2Fpage-color-sampling%2Fcolor-sampling-fixed-container-under-subscroller.html&test=fast%2Fpage-color-sampling%2Fcolor-sampling-fixed-descendant-in-relative-container.html&test=fast%2Fpage-color-sampling%2Fcolor-sampling-fixed-popup.html&test=fast%2Fpage-color-sampling%2Fcolor-sampling-ignores-backdrop-filters.html&test=fast%2Fpage-color-sampling%2Fcolor-sampling-ignores-images.html&test=fast%2Fpage-color-sampling%2Fcolor-sampling-ignores-non-fixed-content.html&test=fast%2Fpage-color-sampling%2Fcolor-sampling-ignores-text.html&test=fast%2Fpage-color-sampling%2Fcolor-sampling-ignores-transparent-pointer-events-none-container.html&test=fast%2Fpage-color-sampling%2Fcolor-sampling-in-position-sticky.html&test=fast%2Fpage-color-sampling%2Fcolor-sampling-includes-sides-that-had-insets.html&test=fast%2Fpage-color-sampling%2Fcolor-sampling-includes-subframes.html&test=fast%2Fpage-color-sampling%2Fcolor-sampling-modal-popup.html&test=fast%2Fpage-color-sampling%2Fcolor-sampling-stability-for-same-element.html&test=fast%2Fpage-color-sampling%2Fcolor-sampling-while-rubber-banding.html&test=fast%2Fpage-color-sampling%2Fmaintain-sampled-color-when-scrolled-to-top.html&test=fast%2Fpage-color-sampling%2Fpage-color-sampling-skips-border-top.html TEXT DIFFS CAN BE FOUND AT THE FOLLOWING LINK: https://build.webkit.org/results/Apple-iPadOS-18-Simulator-Release-WK2-Tests/297197%40main%20(1440)/results.html TEXT DIFF: * This is not the text diff for every single test, but this is the most common found in all tests (of type string). Was null (of type object).
Attachments
Bryan Medina
Comment 1 2025-07-10 11:12:32 PDT
I was able to reproduce all these test failures on iPad iOS ToT running the test as follows: run-webkit-tests --iPad-simulator <insert_test_name_here>
Radar WebKit Bug Importer
Comment 2 2025-07-10 11:13:04 PDT
Bryan Medina
Comment 3 2025-07-10 11:14:16 PDT
I was able to bisect the regression point by testing 297118@main and it failed, but it passed at 297117@main. Therefore, I have concluded that 297118@main is the regression point.
EWS
Comment 4 2025-07-10 11:31:27 PDT
Test gardening commit 297213@main (5f825e86152a): <https://commits.webkit.org/297213@main> Reviewed commits have been landed. Closing PR #47834 and removing active labels.
Wenson Hsieh
Comment 5 2025-07-10 14:27:03 PDT
EWS
Comment 6 2025-07-10 18:32:15 PDT
Committed 297238@main (e73bac5a990a): <https://commits.webkit.org/297238@main> Reviewed commits have been landed. Closing PR #47845 and removing active labels.
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