Bug 207859 – [ macOS ] fast/images/slower-decoding-than-animation-image.html is flaky failing

• Status: RESOLVED
• Resolution: FIXED
• Component: Images

[Jacob Uphoff]

fast/images/slower-decoding-than-animation-image.html

This test has been failing for all visible history. 

I was able to reproduce the failing by running it in iterations. Here is the command I used: 'run-webkit-tests --root debug-256764 fast/images/slower-decoding-than-animation-image.html -1 -f --iterations 5000 --debug' and it failed 32 times.

History:

https://results.webkit.org/?suite=layout-tests&test=fast%2Fimages%2Fslower-decoding-than-animation-image.html&limit=50000

Diff:

--- /Volumes/Data/slave/mojave-release-tests-wk2/build/layout-test-results/fast/images/slower-decoding-than-animation-image-expected.txt
+++ /Volumes/Data/slave/mojave-release-tests-wk2/build/layout-test-results/fast/images/slower-decoding-than-animation-image-actual.txt
@@ -3,7 +3,7 @@
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
 
 
-PASS internals.imageFrameIndex(image) is 1
+FAIL internals.imageFrameIndex(image) should be 1. Was 0.
 PASS successfullyParsed is true
 
 TEST COMPLETE

[Jacob Uphoff]

Set expectations here: https://trac.webkit.org/changeset/256771/webkit

[Radar WebKit Bug Importer]

<rdar://problem/59525103>

[Said Abou-Hallawa]

*** Bug 172666 has been marked as a duplicate of this bug. ***

[Said Abou-Hallawa]

Created attachment 394349 [details]
Patch

[EWS]

Committed r258930: <https://trac.webkit.org/changeset/258930>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 394349 [details].

[Said Abou-Hallawa]

A follow up patch which makes the test reliable on the slow bots: 

Committed r258960: <https://trac.webkit.org/changeset/258960>