Bug 313664 – REGRESSION(312034@main): [Tahoe] imported/w3c/web-platform-tests/css/filter-effects/filter-function/filter-function-linear-gradient.html is a constant IMAGE failure

• Component: CSS
• Status: NEW

[Karl Rackler]

Description:
imported/w3c/web-platform-tests/css/filter-effects/filter-function/filter-function-linear-gradient.html is a constant IMAGE failure on mac Tahoe

Regression = https://commits.webkit.org/compare/312033@main...312034@main

This issue can be bisected to 312034@main using the command:
run-webkit-tests --no-build --no-retry --no-show-results --exit-after-n-failures=1 --expect-pass --iterations=5 --force --release imported/w3c/web-platform-tests/css/filter-effects/filter-function/filter-function-linear-gradient.html

------------- BISECTION AUDIT TRAIL -------------
312033@main, 6c57254b34e5 --> Passed
312034@main, 6c57254b34e5 --> IMAGE
------------- BISECTION AUDIT TRAIL END -------------

History:
https://results.webkit.org/?version_name=Tahoe&suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Ffilter-effects%2Ffilter-function%2Ffilter-function-linear-gradient.html

Diff:
[Image diff - see attachment]

[Karl Rackler]

Created attachment 479375 [details]
Image: filter-function-linear-gradient-diff.png

[Karl Rackler]

Created attachment 479376 [details]
Image: filter-function-linear-gradient-actual.png

[Radar WebKit Bug Importer]

<rdar://problem/175867633>

[Karl Rackler]

Test Run: https://build.webkit.org/#/builders/1716/builds/3584
09:29:57.722 40158 [56448/91283] imported/w3c/web-platform-tests/css/filter-effects/filter-function/filter-function-linear-gradient.html failed unexpectedly (reference mismatch maxDifference=1; totalPixels=30375)
09:29:57.722 40158 worker/2 imported/w3c/web-platform-tests/css/filter-effects/filter-function/filter-function-linear-gradient.html failed:
09:29:57.722 40158 worker/2 reference mismatch maxDifference=1; totalPixels=30375

[Ahmad Saleem]

It is just gardening since I just synced test cases.

[Ahmad Saleem]

Additionally, we just add noise to gradients (linear, radial and conic), so we need to just add tolerance to garden this test.

[EWS]

Test gardening commit 312302@main (58a721c46f04): <https://commits.webkit.org/312302@main>

Reviewed commits have been landed. Closing PR #63905 and removing active labels.