New test: [Mac-wk2] fast/scrolling/mac/wheel-event-deltas-are-not-filtered.html is a flaky failure

• Component: Scrolling
• Status: RESOLVED CONFIGURATION CHANGED

[Ryan Haddad]

fast/scrolling/mac/wheel-event-deltas-are-not-filtered.html is a flaky failure on macOS WK2 bots. This is seen on Monterey, Big Sur, and Catalina.

--- /Volumes/Data/worker/bigsur-release-tests-wk2/build/layout-test-results/fast/scrolling/mac/wheel-event-deltas-are-not-filtered-expected.txt
+++ /Volumes/Data/worker/bigsur-release-tests-wk2/build/layout-test-results/fast/scrolling/mac/wheel-event-deltas-are-not-filtered-actual.txt
@@ -1,8 +1,7 @@
 -10 10
 -10 20
 -10 10
--10 20
--20 30
+-30 50
 PASS successfullyParsed is true
 
 TEST COMPLETE

https://results.webkit.org/?suite=layout-tests&test=fast%2Fscrolling%2Fmac%2Fwheel-event-deltas-are-not-filtered.html

[Radar WebKit Bug Importer]

<rdar://problem/85188058>

[Ryan Haddad]

I was able to reproduce locally with:
run-webkit-tests --debug --no-build fast/scrolling/mac/wheel-event-deltas-are-not-filtered.html --iterations 50 --exit-after-n-failures 1

[Simon Fraser (smfr)]

This is about wheel event coalescing.

[Simon Fraser (smfr)]

This is about wheel event coalescing.

[Simon Fraser (smfr)]

Did I land the test with:
                    viewX : 101, // Defeat coalescing
??

[Simon Fraser (smfr)]

Should be fixed by https://trac.webkit.org/changeset/285498/webkit

[Alexey Proskuryakov]

The dashboard agrees.