Bug 215324

Summary: [ iOS wk2 ] compositing/clipping/border-radius-on-webgl.html is a flaky failure (2 pixel diff)
Product: WebKit Reporter: Hector Lopez <hector_i_lopez>
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: ap, bfulgham, simon.fraser, webkit-bot-watchers-bugzilla, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on: 149828    
Bug Blocks:    
Attachments:
Description Flags
Expected image
none
Actual image
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Diff image none

Description Hector Lopez 2020-08-10 09:51:31 PDT 
compositing/clipping/border-radius-on-webgl.html

This test is a flaky failure on iOS wk2 according to history. First occurrence of failure that can be seen going back to 50000 revisions was at r260863.

History:
https://results.webkit.org/?suite=layout-tests&test=compositing%2Fclipping%2Fborder-radius-on-webgl.html&platform=ios&limit=50000

Diff:
https://build.webkit.org/results/Apple%20iPadOS%2013%20Simulator%20Debug%20WK2%20(Tests)/r265422%20(3077)/compositing/clipping/border-radius-on-webgl-diffs.html

or see attachments
Comment 1 Hector Lopez 2020-08-10 09:52:07 PDT 
Created attachment 406304 [details]
Expected image
Comment 2 Hector Lopez 2020-08-10 09:52:48 PDT 
Created attachment 406305 [details]
Actual image
Comment 3 Hector Lopez 2020-08-10 09:53:33 PDT 
Created attachment 406306 [details]
Diff image

Difference is two pixels
Comment 4 Hector Lopez 2020-08-10 10:06:00 PDT 
Test expectation while investigated:

https://trac.webkit.org/changeset/265435/webkit
Comment 5 Radar WebKit Bug Importer 2020-08-10 10:56:54 PDT 
<rdar://problem/66789004>
Comment 6 Hector Lopez 2020-10-05 18:23:07 PDT 
Test is now a flaky timeout on iOS since switch to iOS 14.

Test expectation changed for timeout:

https://trac.webkit.org/changeset/268024/webkit
Comment 7 Hector Lopez 2020-10-20 09:53:46 PDT 
Test expectation adjustment for ImageOnlyFailure

https://bugs.webkit.org/show_bug.cgi?id=215324