Process::EXIT_SUCCESS and Process::EXIT_FAILURE
I'd like to define Process::EXIT_SUCCESS and Process::EXIT_FAILURE.
I want to use them to test my command line application.
The test calls the main routine of the application and
I'd like to compare status of the exception and EXIT_SUCCESS/EXIT_FAILURE
but Ruby doesn't have constants for them.
Note that the test doesn't spawn a process.
So, there is no Process::Status object and Process::Status#success? is not usable.