[Webkit-unassigned] [Bug 230510] New: Regression (r282768): [ macOS Release ] TestWebKitAPI.FontManagerTests.ChangeAttributesWithFontEffectsBox is failing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=230510

            Bug ID: 230510
           Summary: Regression (r282768): [ macOS Release ]
                    TestWebKitAPI.FontManagerTests.ChangeAttributesWithFon
                    tEffectsBox is failing
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Mac (Intel)
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ayumi_kojima at apple.com

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

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