Bug 231641

Summary: [ iOS ] fast/scrolling/ios/scroll-snap-with-momentum-scroll-in-overflow-scroll-area.html is a flaky failure
Product: WebKit Reporter: ayumi_kojima
Component: ScrollingAssignee: 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: iPhone / iPad   
OS: Unspecified   

Description ayumi_kojima 2021-10-12 15:59:45 PDT
fast/scrolling/ios/scroll-snap-with-momentum-scroll-in-overflow-scroll-area.html

Is a flaky failure on iOS 15.

History: https://results.webkit.org/?suite=layout-tests&test=fast%2Fscrolling%2Fios%2Fscroll-snap-with-momentum-scroll-in-overflow-scroll-area.html

Result page: https://build.webkit.org/results/Apple-iOS-15-Simulator-Debug-WK2-Tests/r283980%20(140)/results.html#

Diff:

--- /Volumes/Data/worker/ios-simulator-15-debug-tests-wk2/build/layout-test-results/fast/scrolling/ios/scroll-snap-with-momentum-scroll-in-overflow-scroll-area-expected.txt
+++ /Volumes/Data/worker/ios-simulator-15-debug-tests-wk2/build/layout-test-results/fast/scrolling/ios/scroll-snap-with-momentum-scroll-in-overflow-scroll-area-actual.txt
@@ -3,10 +3,11 @@
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
 
 
-PASS scroller.scrollTop is 1000
-PASS scroller.scrollTop is 6500
-PASS scroller.scrollTop is 1000
+FAIL scroller.scrollTop should be 1000. Was 0.
+FAIL scroller.scrollTop should be 6500. Was 0.
+FAIL scroller.scrollTop should be 1000. Was 0.
 PASS successfullyParsed is true
+Some tests failed.
 
 TEST COMPLETE
Comment 1 Radar WebKit Bug Importer 2021-10-12 16:00:02 PDT
<rdar://problem/84170720>
Comment 2 ayumi_kojima 2021-10-12 16:05:28 PDT
Marked test expectations https://trac.webkit.org/changeset/284054/webkit
Comment 3 ayumi_kojima 2021-10-19 11:30:09 PDT
I was not able to reproduce the failure locally using run-webkit-tests  --force --ios-simulator --iterations 500 --exit-after-n-failures 1 fast/scrolling/ios/scroll-snap-with-momentum-scroll-in-overflow-scroll-area.html -f.