- Used nameof methods instead of random path to create test file names. - Bubbled IOException when trying to delete a test file and it fails so we know that the file is not deleted. Paired with @janssen git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@8412 5a3db67b-de53-47b5-99c8-a1c30a6650e2