Test-driving a rails script/runner script

How to write test cases for rails scripts!.

and if we are expecting user input in command line

http://guides.rubyonrails.org/testing.html
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Thanks for the link, I already have gone through the guide but could not find any relevant information about writing test cases for script/runner scripts having user interaction!!!

check out Aruba

Or check out ‘expects’ unix construct I think there is a gem. Expects output and then inputs data