TestWebKitAPI.FontManagerTests.ChangeAttributesWithFontEffectsBox Is failing on BigSur Release and Catalina Release. History: https://results.webkit.org/?suite=api-tests&test=TestWebKitAPI.FontManagerTests.ChangeAttributesWithFontEffectsBox The history indicates that the failure seems to have started at https://trac.webkit.org/changeset/282768/webkit /Volumes/Data/worker/catalina-release/build/Tools/TestWebKitAPI/Tests/mac/FontManagerTests.mm:288 Expected equality of these values: "rgb(0, 0, 0) 0px 1.25px 8px" textShadowAroundSelection() Which is: "rgb(0, 0, 0) 7.654042497785054e-17px 1.25px 8px" /Volumes/Data/worker/catalina-release/build/Tools/TestWebKitAPI/Tests/mac/FontManagerTests.mm:291 Expected equality of these values: shadow.shadowOffset.width Which is: 7.65404e-17 0 /Volumes/Data/worker/catalina-release/build/Tools/TestWebKitAPI/Tests/mac/FontManagerTests.mm:309 Expected equality of these values: "rgba(0, 0, 0, 0.2) 0px 1.25px 5px" textShadowAroundSelection() Which is: "rgba(0, 0, 0, 0.2) 7.654042497785054e-17px 1.25px 5px" /Volumes/Data/worker/catalina-release/build/Tools/TestWebKitAPI/Tests/mac/FontManagerTests.mm:317 Expected equality of these values: shadow.shadowOffset.width Which is: 7.65404e-17 0
<rdar://problem/83323950>
The test is failing on Debug as well.
r282768 was reverted in r282826.