Payment_app_agile_ppp is a project mainly written in Ruby, it's free.
This is a complete version of Uncle Bob's Payment Application sample in Agile Software Development Principles, Patterns, Practices book with Ruby and RSpec
This is an equivalent and more complete version of Payment application in Uncle Bob's Agile Software Development Principles, Patterns, Practices in Ruby 1.9.2
/It's interesting to see implementation of same project in static-typed language like C++ or Java and a dynamic language like Ruby. differences are really absorbing/
I hope you enjoy it like I do
/any recommendations and contributions will be appreciated/