test(auth): increase code coverage #859

Job	Run time
Examples	3m 42s
xcodebuild (16) (test, IOS, 16.2)	3m 12s
xcodebuild (15) (test, IOS, 15.4)	6m 36s
xcodebuild (16) (test, MACOS, 16.2)	2m 21s
xcodebuild (15) (test, MAC_CATALYST, 15.4)	3m 50s
xcodebuild (15) (test, MACOS, 15.4)	3m 59s
xcodebuild (16) (IOS, 16.2)	2m 38s
xcodebuild (15) (test, TVOS, 15.4)	3m 49s
xcodebuild (16) (MACOS, 16.2)	3m 14s
xcodebuild (15) (test, VISIONOS, 15.4)	6m 48s
xcodebuild (15) (IOS, 15.2)	5m 13s
xcodebuild (15) (IOS, 15.4)	3m 55s
xcodebuild (15) (MAC_CATALYST, 15.4)	4m 8s
xcodebuild (15) (MACOS, 15.2)	5m 5s
xcodebuild (15) (MACOS, 15.4)	5m 35s
xcodebuild (15) (TVOS, 15.4)	4m 8s
xcodebuild (15) (VISIONOS, 15.4)	5m 33s
xcodebuild (15) (WATCHOS, 15.4)	4m 37s
	1h 18m 23s

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