Bug 212667

Summary: [ Mojave wk2 Debug ] fast/scrolling/mac/scrollbars/select-overlay-scrollbar-hovered.html is flaky failing and flaky timing out.
Product: WebKit Reporter: Jason Lawrence <Lawrence.j>
Component: ScrollingAssignee: Simon Fraser (smfr) <simon.fraser>
Status: RESOLVED FIXED    
Severity: Normal CC: simon.fraser, webkit-bot-watchers-bugzilla, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Mac   
OS: macOS 10.14   
Attachments:
Description Flags
Patch none

Description Jason Lawrence 2020-06-02 15:55:28 PDT 
fast/scrolling/mac/scrollbars/select-overlay-scrollbar-hovered.html

Description:
This test is flaky timing out and failing on Mojave wk2 Debug. The flakiness is apparent throughout the visible history.

History:
https://results.webkit.org/?suite=layout-tests&test=fast%2Fscrolling%2Fmac%2Fscrollbars%2Fselect-overlay-scrollbar-hovered.html&limit=50000&platform=mac&version_name=Mojave&style=debug

Failure Diff:
--- /Volumes/Data/slave/mojave-debug-tests-wk2/build/layout-test-results/fast/scrolling/mac/scrollbars/select-overlay-scrollbar-hovered-expected.txt
+++ /Volumes/Data/slave/mojave-debug-tests-wk2/build/layout-test-results/fast/scrolling/mac/scrollbars/select-overlay-scrollbar-hovered-actual.txt
@@ -7,7 +7,7 @@
 Initial state
 enabled
 Hovering vertical scrollbar should show expanded scrollbar
-PASS Scrollbar state: enabled,expanded,visible_track,visible_thumb
+PASS Scrollbar state: enabled,expanded
 Unhovering vertical scrollbar should hide it
 PASS Thumb and track hidden
 PASS successfullyParsed is true



Timeout Diff:
--- /Volumes/Data/slave/mojave-debug-tests-wk2/build/layout-test-results/fast/scrolling/mac/scrollbars/select-overlay-scrollbar-hovered-expected.txt
+++ /Volumes/Data/slave/mojave-debug-tests-wk2/build/layout-test-results/fast/scrolling/mac/scrollbars/select-overlay-scrollbar-hovered-actual.txt
@@ -1,16 +1,5 @@
+#PID UNRESPONSIVE - WebKitTestRunner (pid 99986)
+FAIL: Timed out waiting for notifyDone to be called
 
-Test hover over the overlay scrollbar of a scrolling list
-
-On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
-
-
-Initial state
-enabled
-Hovering vertical scrollbar should show expanded scrollbar
-PASS Scrollbar state: enabled,expanded,visible_track,visible_thumb
-Unhovering vertical scrollbar should hide it
-PASS Thumb and track hidden
-PASS successfullyParsed is true
-
-TEST COMPLETE
-
+#EOF
+#EOF
Comment 1 Radar WebKit Bug Importer 2020-06-02 15:55:55 PDT 
<rdar://problem/63896649>
Comment 2 Jason Lawrence 2020-06-02 16:11:07 PDT 
I have marked this test as flaky failing and flaky timing out while this issue is investigated.
https://trac.webkit.org/changeset/262459/webkit
Comment 3 Simon Fraser (smfr) 2020-06-04 16:51:57 PDT 
Created attachment 401094 [details]
Patch
Comment 4 EWS 2020-06-04 17:19:18 PDT 
Committed r262590: <https://trac.webkit.org/changeset/262590>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 401094 [details].