[Webkit-unassigned] [Bug 228309] New: REGRESSION (r279855): TestWebKitAPI.AppleLanguagesTest.UpdateAppleLanguages is failing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=228309

            Bug ID: 228309
           Summary: REGRESSION (r279855):
                    TestWebKitAPI.AppleLanguagesTest.UpdateAppleLanguages
                    is failing
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Accessibility
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: tsavell at apple.com
                CC: andresg_22 at apple.com,
                    webkit-bug-importer at group.apple.com

It looks like the changes in https://trac.webkit.org/changeset/279855/webkit

broke TestWebKitAPI.AppleLanguagesTest.UpdateAppleLanguages on Big Sur

history:
https://results.webkit.org/?suite=api-tests&test=TestWebKitAPI.AppleLanguagesTest.UpdateAppleLanguages

Diff:
TestWebKitAPI.AppleLanguagesTest.UpdateAppleLanguages

        /Volumes/Data/worker/bigsur-release/build/Tools/TestWebKitAPI/Tests/WebKit/OverrideAppleLanguagesPreference.mm:179
        Value of: didChangeLanguage
          Actual: false
        Expected: true


        /Volumes/Data/worker/bigsur-release/build/Tools/TestWebKitAPI/Tests/WebKit/OverrideAppleLanguagesPreference.mm:180
        Value of: preferenceObserverPreferenceDidChangeCalled
          Actual: false
        Expected: true


        /Volumes/Data/worker/bigsur-release/build/Tools/TestWebKitAPI/Tests/WebKit/OverrideAppleLanguagesPreference.mm:181
        Expected equality of these values:
          @"en-US"
            Which is: "en-US"
          preferredLanguage()
            Which is: "en-GB"

I am able to reproduce this with command:
run-api-tests TestWebKitAPI.AppleLanguagesTest.UpdateAppleLanguages

I bisected this and was able to reproduce it on r279855 but no r279854

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