228309 2021-07-26 17:08:25 -0700 REGRESSION (r279855): TestWebKitAPI.AppleLanguagesTest.UpdateAppleLanguages is failing 2021-07-27 18:16:51 -0700 1 1 1 Unclassified WebKit Accessibility WebKit Nightly Build Unspecified Unspecified NEW InRadar P2 Normal --- 1 tsavell webkit-unassigned andresg_22 ap cdumez cfleizach pvollan sam webkit-bug-importer oldest_to_newest 1779639 0 tsavell 2021-07-26 17:08:25 -0700 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 1779640 1 webkit-bug-importer 2021-07-26 17:08:43 -0700 <rdar://problem/81137581>