Bug 263925

Summary:	REGRESSION (269897@main): [ Sonoma wk2 ] 2 tests in imported/w3c/web-platform-tests/css/cssom-view/ are a constant failure
Product:	WebKit	Reporter:	Marta Darbinyan <darbinyan>
Component:	New Bugs	Assignee:	Simon Fraser (smfr) <simon.fraser>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	richard_robinson2, simon.fraser, webkit-bot-watchers-bugzilla, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Marta Darbinyan 2023-10-30 14:53:48 PDT

Description:
The following tests are constantly failing on ToT started from 269897@main.

imported/w3c/web-platform-tests/css/cssom-view/scroll-behavior-main-frame-window.html
imported/w3c/web-platform-tests/css/cssom-view/scroll-behavior-main-frame-root.html

This issue can be bisected to 269897@main by using the command: 
run-webkit-tests --release --iterations=10 imported/w3c/web-platform-tests/css/cssom-view/scroll-behavior-main-frame-window.html

269897@main - FAILED 10 out of 10
269896@main - PASSED 10 out of 10

History:
https://results.webkit.org/?suite=layout-tests&suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcssom-view%2Fscroll-behavior-main-frame-root.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcssom-view%2Fscroll-behavior-main-frame-window.html&flavor=wk2&version_name=Sonoma

Error:
 23FAIL Main frame with auto scroll-behavior ; scrollBy() with smooth behavior assert_equals: Final value of scrollLeft expected 2430 but got 3265
 24FAIL Main frame with smooth scroll-behavior ; scrollBy() with default behavior assert_equals: Final value of scrollLeft expected 2430 but got 3265
 25FAIL Main frame with smooth scroll-behavior ; scrollBy() with auto behavior assert_equals: Final value of scrollLeft expected 2430 but got 3265
2626PASS Main frame with smooth scroll-behavior ; scrollBy() with instant behavior
27 PASS Main frame with smooth scroll-behavior ; scrollBy() with smooth behavior
 27FAIL Main frame with smooth scroll-behavior ; scrollBy() with smooth behavior assert_equals: Final value of scrollLeft expected 2430 but got 3265

Link:
https://build.webkit.org/results/Apple-Sonoma-Release-WK2-Tests/269935@main%20(409)/imported/w3c/web-platform-tests/css/cssom-view/scroll-behavior-main-frame-root-pretty-diff.html

Comment 1 Radar WebKit Bug Importer 2023-10-30 14:54:40 PDT

<rdar://problem/117706782>

Comment 2 EWS 2023-10-30 15:59:28 PDT

Test gardening commit 269979@main (a27156599b32): <https://commits.webkit.org/269979@main>

Reviewed commits have been landed. Closing PR #19743 and removing active labels.

Comment 3 Simon Fraser (smfr) 2023-11-03 14:20:33 PDT

Pull request: https://github.com/WebKit/WebKit/pull/19973

Comment 4 EWS 2023-11-05 07:33:16 PST

Committed 270243@main (a53d9e00eb65): <https://commits.webkit.org/270243@main>

Reviewed commits have been landed. Closing PR #19973 and removing active labels.