Bug 251219 – [ macOS ] fast/images/animated-avif.html is broken

• Status: NEW
• Component: Images

[Robert Jenner]

fast/images/animated-avif.html

is broken in multiple ways on macOS. 


For Ventura WK2 it is a constant timeout, and a flaky crash, but the flaky crash is being investigated on another bug. 

For Ventura WK1 it is a constant Imagefailure.

It is a constant ImageOnlyFailure on Monterey WK2, but only on systems running on Apple Silicon, so I wonder if we just need to adjust the pixel tolerances on that platform for apple silicon in order to fix that? 

HISTORY:
https://results.webkit.org/?suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&test=fast%2Fimages%2Favif-as-image.html&test=fast%2Fimages%2Favif-heif-container-as-image.html&test=fast%2Fimages%2Favif-image-decoding.html&test=fast%2Fimages%2Favif-image-document.html


Image Diff link for Ventura WK1:
https://build.webkit.org/results/Apple-Ventura-Release-WK1-Tests/259363@main%20(1141)/fast/images/animated-avif-diffs.html

Image Diff link for Monterey WK2 Apple Silicon:
https://build.webkit.org/results/Apple-Monterey-Release-AppleSilicon-WK2-Tests/259363@main%20(7172)/fast/images/animated-avif-diffs.html

Expectations have already been set properly for this test.

[Radar WebKit Bug Importer]

<rdar://problem/104706388>

[Robert Jenner]

I can't reproduce the Timeout on Ventura WK2, but I am reproducing an ImageFailure. I believe this points to a test-list order issue, and I am investigating.

[Robert Jenner]

I cannot reproduce the timeout on Mac Ventura WK2, only an ImageOnly Failure. However, that does match what is occurring on Ventura wk1, and Monterey wk2 apple silicon. I reproduced the ImageOnlyFailure on my MacBookPro 18,3 at Ventura Debug ToT running the test as follows:


run-webkit-tests fast/images/animated-avif.html --force

[Robert Jenner]

According to the history the timeouts on Mac, and the timeouts on iOS for this test started occurring at or after 256665@main:

https://commits.webkit.org/256665@main


The difficulty here is that I can't reproduce the timeouts on Mac. But I can reproduce an ImageFailure.

[Ryan Haddad]

Link to result history for fast/images/animated-avif.html: https://results.webkit.org/?suite=layout-tests&test=fast%2Fimages%2Fanimated-avif.html