Tests

Fix unused ExitStatus import #96

Job	Run time
format	17s
build (macos-latest)	36s
build (ubuntu-latest)	38s
integration (windows-latest, latest)	4m 46s
build (windows-latest)	1m 3s
integration (ubuntu-latest, latest)	1m 5s
integration (macos-latest, latest)	2m 45s
	11m 10s

Provide feedback