My completed project code for the Tuts+ tutorial, Gang of Four Design Patterns in Ruby by José Mota. It probably doesn't differ too much from the code in the official Tuts+ repo. Instead of symlinking to the Rakefile and test_helper.rb in the root directory, I've duplicated them locally in their respective subfolders: i.e., pattern/Rakefile and pattern/test/test_helper.rb.