test(storage): increase code coverage #864

Job	Run time
xcodebuild (15) (test, IOS, 15.4)	4m 17s
Examples	3m 39s
xcodebuild (16) (test, IOS, 16.2)	3m 27s
xcodebuild (16) (test, MACOS, 16.2)	2m 7s
xcodebuild (15) (test, MAC_CATALYST, 15.4)	6m 37s
xcodebuild (16) (IOS, 16.2)	4m 54s
xcodebuild (15) (test, MACOS, 15.4)	3m 32s
xcodebuild (16) (MACOS, 16.2)	3m 59s
xcodebuild (15) (test, TVOS, 15.4)	7m 34s
xcodebuild (15) (test, VISIONOS, 15.4)	7m 8s
xcodebuild (15) (IOS, 15.2)	8m 6s
xcodebuild (15) (IOS, 15.4)	4m 2s
xcodebuild (15) (MAC_CATALYST, 15.4)	7m 25s
xcodebuild (15) (MACOS, 15.2)	4m 25s
xcodebuild (15) (MACOS, 15.4)	4m 49s
xcodebuild (15) (TVOS, 15.4)	4m 21s
xcodebuild (15) (VISIONOS, 15.4)	3m 57s
xcodebuild (15) (WATCHOS, 15.4)	5m 32s
	1h 29m 51s

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