Fix cmd tests
Fixes issue #9 (closed) by refactoring cmd tests in a way that we are certain they work, yet we support both OSX and linux as a valid output for the ls command
cc/ @ahmadsherif @eReGeBe
Fixes issue #9 (closed) by refactoring cmd tests in a way that we are certain they work, yet we support both OSX and linux as a valid output for the ls command
cc/ @ahmadsherif @eReGeBe