Bug 192879

Summary: [ Mojave WK1 ] Layout Test webgl/webgl-* is flaky
Product: WebKit Reporter: Truitt Savell <tsavell>
Component: Tools / TestsAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: ap, dino, jlewis3, justin_fan, lforschler, ryanhaddad
Priority: P2    
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
See Also: https://bugs.webkit.org/show_bug.cgi?id=192881
Bug Depends on:    
Bug Blocks: 239640    

Description Truitt Savell 2018-12-19 14:13:41 PST
The following layout tests are flaky on MacOS Mojave

webgl/webgl-backing-store-size-update.html 
webgl/webgl-border.html 
webgl/webgl-box-shadow.html 
webgl/webgl-padding.html

Probable cause:

These four tests are image failures that fail in tandem. All of these tests are failing to draw a square of some variety.

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=webgl%2Fwebgl-backing-store-size-update.html%20webgl%2Fwebgl-border.html%20webgl%2Fwebgl-box-shadow.html%20webgl%2Fwebgl-padding.html

Link to failures:
https://build.webkit.org/results/Apple%20Mojave%20Debug%20WK1%20(Tests)/r239381%20(1250)/results.html