Bug 298044 – REGRESSION(299205@main): [ macOS wk2 arm64 ] fast/scrolling/mac/scrollbars/overflow-in-iframe-overlay-scrollbar-reveal.html is a flaky text failure

• Component: Scrolling
• Status: RESOLVED FIXED

[Bryan Medina]

fast/scrolling/mac/scrollbars/overflow-in-iframe-overlay-scrollbar-reveal.html

is a flaky text failure occurring on macOS wk2 arm64.

HISTORY:
https://results.webkit.org/?suite=layout-tests&test=fast%2Fscrolling%2Fmac%2Fscrollbars%2Foverflow-in-iframe-overlay-scrollbar-reveal.html

TEXT DIFF:
--- /Volumes/Data/worker/Apple-Sequoia-Release-AppleSilicon-WK2-Tests/build/layout-test-results/fast/scrolling/mac/scrollbars/overflow-in-iframe-overlay-scrollbar-reveal-expected.txt
+++ /Volumes/Data/worker/Apple-Sequoia-Release-AppleSilicon-WK2-Tests/build/layout-test-results/fast/scrolling/mac/scrollbars/overflow-in-iframe-overlay-scrollbar-reveal-actual.txt
@@ -5,7 +5,7 @@
 
 
 Initial state
-enabled
+
 MayBegin should show the scrollbar
 PASS Scrollbar state: enabled,visible_thumb
 Cancelled should hide the scrollbar

TEXT DIFF URL:
https://build.webkit.org/results/Apple-Sequoia-Release-AppleSilicon-WK2-Tests/299252@main%20(4262)/fast/scrolling/mac/scrollbars/overflow-in-iframe-overlay-scrollbar-reveal-diff.txt

[Radar WebKit Bug Importer]

<rdar://problem/159376922>

[Bryan Medina]

I was able to reproduce the text failure locally on my device running macOS Sequoia Release ToT using the following command:

run-webkit-tests fast/scrolling/mac/scrollbars/overflow-in-iframe-overlay-scrollbar-reveal.html --iterations=25 -f

[EWS]

Test gardening commit 299267@main (14ef4397b43e): <https://commits.webkit.org/299267@main>

Reviewed commits have been landed. Closing PR #50014 and removing active labels.

[Bryan Medina]

By using the reproduction steps mentioned above, I was able to reproduce the first failure for this test at 299205@main and was not able to reproduce it at 299204@main. At this time I believe the regression point is at 299205@main.

[alan]

Created attachment 476637 [details]
[fast-cq]Patch

[EWS]

Committed 299578@main (742a4e98da34): <https://commits.webkit.org/299578@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 476637 [details].