Bug 207793

Summary:	[ Mac wk2 ] fast/html/marquee-child-wrap.html is flaky failing.
Product:	WebKit	Reporter:	Jason Lawrence <Lawrence.j>
Component:	New Bugs	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	tsavell, webkit-bot-watchers-bugzilla, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Mac
OS:	macOS 10.15
See Also:	https://bugs.webkit.org/show_bug.cgi?id=206704

Description Jason Lawrence 2020-02-14 14:49:11 PST

fast/html/marquee-child-wrap.html

Description:
This test is flaky failing throughout visible history. All of the diff percentages that I can see are the same.

History:
https://results.webkit.org/?suite=layout-tests&test=fast%2Fhtml%2Fmarquee-child-wrap.html&platform=mac&limit=50000&flavor=wk2

Diff:
https://build.webkit.org/results/Apple-Catalina-Debug-WK2-Tests/r256232%20(2242)/fast/html/marquee-child-wrap-diff.png

Comment 1 Radar WebKit Bug Importer 2020-02-14 14:50:19 PST

<rdar://problem/59473519>

Comment 2 Jason Lawrence 2020-02-14 15:06:11 PST

I have marked this test as failing while this issue is investigated.
https://trac.webkit.org/changeset/256650/webkit

Comment 3 Truitt Savell 2020-02-14 15:44:26 PST

This is failing in the same way as before. but just on Catalina wk2. I can reproduce this locally only on Catalina. History shows this test was passing for a time before failing again.

Comment 4 Truitt Savell 2020-02-14 15:45:02 PST

I am going to increase the scroll delay again to something much higher.

Comment 5 Truitt Savell 2020-02-14 15:52:11 PST

Landed a fix in: https://trac.webkit.org/changeset/256656/webkit