Bug 197283

Summary:	[Mac WK2] Layout Test fast/css-custom-paint/animate-repaint.html is a flaky failure
Product:	WebKit	Reporter:	Shawn Roberts <sroberts>
Component:	Tools / Tests	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	dino, jlewis3, lforschler, ryanhaddad, tsavell, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified
See Also:	https://bugs.webkit.org/show_bug.cgi?id=192335 https://bugs.webkit.org/show_bug.cgi?id=191443

Description Shawn Roberts 2019-04-25 09:22:04 PDT

The following layout test is flaky on Mac WK2 Release and Debug

fast/css-custom-paint/animate-repaint.html

Probable cause:

Unable to reproduce locally. Test has been flaky for its entire history on the dashboard

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=fast%2Fcss-custom-paint%2Fanimate-repaint.html

Diff:

--- /Volumes/Data/slave/mojave-debug-tests-wk2/build/layout-test-results/fast/css-custom-paint/animate-repaint-expected.txt
+++ /Volumes/Data/slave/mojave-debug-tests-wk2/build/layout-test-results/fast/css-custom-paint/animate-repaint-actual.txt
@@ -1,5 +1,15 @@
 (repaint rects
   (rect 0 0 800 600)
+  (rect 0 0 800 600)
+  (rect 8 8 150 150)
+  (rect 8 8 784 150)
+  (rect 0 0 800 166)
+  (rect 0 0 800 600)
+  (rect 0 0 800 600)
+  (rect 0 0 800 600)
+  (rect 8 8 150 150)
+  (rect 8 8 784 150)
+  (rect 0 0 800 166)
   (rect 8 8 150 150)
   (rect 8 8 150 150)
   (rect 8 8 150 150)

Comment 1 Shawn Roberts 2019-04-25 09:22:53 PDT

Test was added in https://trac.webkit.org/changeset/238686/webkit

Modified in https://trac.webkit.org/changeset/239067/webkit

Comment 2 Radar WebKit Bug Importer 2019-04-25 09:26:17 PDT

<rdar://problem/50207795>

Comment 3 Shawn Roberts 2019-04-25 09:29:44 PDT

Marked flaky in https://trac.webkit.org/changeset/244646/webkit