hello_world_spec.rb

gistfile1.rb

require 'rspec'
require 'rack/test'
require 'hello_world'
require 'repository'

describe 'Hello World application' do
  include Rack::Test::Methods

  def app
    HelloWorld
  end

  it 'should return Hello, world at root URL' do
    mock_repo = mock('repository')
    mock_repo.stub(:get).with('foo').and_return('bar')
    
    Repository.stub(:new).and_return(mock_repo)    
    
    get '/'
    last_response.body.should == 'bar'
  end
end