Test projects give you a way to exercise your code to see if it works but they're also part of your project's "permanent record." If all you want to do is try something out with some throwaway code, C ...

I am using a robocopy script to backup a lot of files to an external HDD, some small and some quite large (>1GB). Sometimes robocopy will hang on a larger file...until I press ctrl-c which rather than ...