Bug 267439 – REGRESSION(267516@main?): [ Monterey Ventura wk2 ] 2 compositing/hidpi-image-backing-store tests are constantly failing.

• Component: Compositing
• Status: RESOLVED FIXED

[Ben Schwartz]

The following two tests are constantly failing on macOS Monterey and Ventura, wk2:

compositing/hidpi-image-backing-store.html
compositing/hidpi-image-backing-store-scaled.html

HISTORY:

https://results.webkit.org/?suite=layout-tests&suite=layout-tests&test=compositing%2Fhidpi-image-backing-store.html&test=compositing%2Fhidpi-image-backing-store-scaled.html&platform=mac&flavor=wk2&recent=false

TEXT DIFF (compositing/hidpi-image-backing-store.html):

         (GraphicsLayer
           (position 8.00 50.00)
           (bounds 150.00 150.00)
-          (drawsContent 1)
-          (device scale 1.00)
+          (device scale 2.00)
         )
       )
     )
DIFF URL: https://build.webkit.org/results/Apple-Ventura-Release-AppleSilicon-WK2-Tests/272944@main%20(6938)/compositing/hidpi-image-backing-store-pretty-diff.html


TEXT DIFF (compositing/hidpi-image-backing-store-scaled.html):

         (GraphicsLayer
           (position 8.00 50.00)
           (bounds 200.00 150.00)
-          (drawsContent 1)
           (device scale 2.00)
         )
       )
DIFF URL: https://build.webkit.org/results/Apple-Ventura-Release-AppleSilicon-WK2-Tests/272944@main%20(6938)/compositing/hidpi-image-backing-store-scaled-pretty-diff.html


REPRODUCIBILITY:

I was able to reproduce this issue on macOS Monterey (12.7, 21G816/x86_64) ToT using the following command:

run-webkit-tests -v compositing/hidpi-image-backing-store.html compositing/hidpi-image-backing-store-scaled.html --force

REGRESSION:

This issue appears to have started with the migration of Sonoma test expectations to OpenSource at 267516@main.

[Radar WebKit Bug Importer]

<rdar://problem/120878646>

[Ben Schwartz]

Note: while these tests began failing at 267516@main, expectations were set. The tests started unexpectedly failing on down-levels at 271850@main, when the expectations were removed.

[EWS]

Committed 272950@main (bd9291027b99): <https://commits.webkit.org/272950@main>

Reviewed commits have been landed. Closing PR #22689 and removing active labels.

[Ben Schwartz]

Re-opening for pull request https://github.com/WebKit/WebKit/pull/22718

[EWS]

Committed 272984@main (ef56380d0f0a): <https://commits.webkit.org/272984@main>

Reviewed commits have been landed. Closing PR #22718 and removing active labels.