[Webkit-unassigned] [Bug 198195] New: REGRESSION (r244353) [Mac WK2] Layout Test fast/css/sticky/sticky-left-percentage.html is a flaky ImageOnlyFailure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=198195

            Bug ID: 198195
           Summary: REGRESSION (r244353) [Mac WK2] Layout Test
                    fast/css/sticky/sticky-left-percentage.html is a flaky
                    ImageOnlyFailure
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: sroberts at apple.com

The following layout test is flaky on Mac Release WK2

fast/css/sticky/sticky-left-percentage.html

Probable cause:

Test wad modified in https://trac.webkit.org/changeset/244353/webkit and started to become a flaky failure

Reproduced locally with:

run-webkit-tests fast/css/sticky/sticky-left-percentage.html --iter 100 -f --exit-after-n-failures=2

Usually hits 2 failures within 10 iterations. 

stdio shows:

Error: test and reference images have different sizes. Test image is 800x700, reference image is 800x600
ImageDiff crashed

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=fast%2Fcss%2Fsticky%2Fsticky-left-percentage.html

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20190523/3b7607a4/attachment.html>