If you write code against the GitHub API you have to mock it somehow. Otherwise it can be tricky to test it. Here is how I did it. I found this great GEM FakeWeb. With this GEM you can fake Web Requests. It allows you to register URLs with fix responses. Her is an example:
FakeWeb.register_uri(:get, "https://github.com/", :body => "Awesome")
If you do now a HTTP request to github.com you will get “Awesome” as response.
Net::HTTP.get(URI.parse("http://github.com"))
=> "Awesome"
Here is how I mocked the GitHub OAuth login precess. I just registered this 2 URLs:
FakeWeb.register_uri(:get, "https://github.com/login/oauth/access_token?client_id=#{Settings.github_client_id}&client_secret=#{Settings.github_client_secret}&code=123", :body => "token=token_123")
FakeWeb.register_uri(:get, "https://api.github.com/user?access_token=token_123", :body => "{\"id\": 1, \"email\": \"test@test.de\"}")
And that’s it. With that you can now test your callback.
get "/auth/github/callback?code=123" assert_response :success
I am using RSpec for testing. Let me know if you have questions.
Robert Reiz 