Bug 244538

Summary:	Test addition (247271@main): [ macOS wk1 Debug ] imported/w3c/web-platform-tests/css/css-scroll-snap/scroll-target-margin-003.html is a flaky image failure
Product:	WebKit	Reporter:	Karl Rackler <rackler>
Component:	New Bugs	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	simon.fraser, webkit-bot-watchers-bugzilla, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Karl Rackler 2022-08-30 08:10:41 PDT

Description:
imported/w3c/web-platform-tests/css/css-scroll-snap/scroll-target-margin-003.html

This test was added at 230283@main and was a consistent image failure until, at 247271@main, it began to flaky image fail.

REPRODUCTION STEPS
I can reproduce this on 253939@main ToT.

Command: 
run-webkit-tests --debug -1 --exit-after-n-failures 1 --exit-after-n-crashes-or-timeouts 1 --iterations 50 -f --no-retry imported/w3c/web-platform-tests/css/css-scroll-snap/scroll-target-margin-003.html

Result: 
Unexpected flakiness: image-only failures (1)
  imported/w3c/web-platform-tests/css/css-scroll-snap/scroll-target-margin-003.html [ Pass ImageOnlyFailure ]

History:
https://results.webkit.org/?limit=50000&suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-scroll-snap%2Fscroll-target-margin-003.html&platform=mac&style=debug&flavor=wk1&recent=false

Image Diff:
https://build.webkit.org/results/Apple-Monterey-Debug-WK1-Tests/253917@main%20(3371)/imported/w3c/web-platform-tests/css/css-scroll-snap/scroll-target-margin-003-diffs.html

Comment 1 Radar WebKit Bug Importer 2022-08-30 08:11:03 PDT

<rdar://problem/99331640>

Comment 2 Karl Rackler 2022-08-30 08:24:31 PDT

I have marked this test as a flaky image failure while this issue is investigated.

Comment 3 EWS 2022-08-30 08:29:43 PDT

Test gardening commit 253944@main (383176abb289): <https://commits.webkit.org/253944@main>

Reviewed commits have been landed. Closing PR #3808 and removing active labels.