Dearest friend, Mike Busch -- example taken from the RSpec Book: http://media.pragprog.com/titles/achbd/code/cb/42/spec/codebreaker/game_spec.rb

game_spec_gimme.rb

#compare to RSpec Book: http://media.pragprog.com/titles/achbd/code/cb/42/spec/codebreaker/game_spec.rb
require 'spec_helper'

module Codebreaker
  describe Codebreaker::Game do
    let(:output) { gimme(IO) }
    let(:game) { Game.new(output) }
    
    describe '#start' do
      before do
        game.start('1234')
      end

      it 'sends a welcome message' do
        #the `!` is necessary b/c puts is a private method on IO
        verify!(output).puts('Welcome to Codebreaker!')
      end
      
      it 'prompts for the first guess' do
        verify!(output).puts('Enter guess:')        
      end
    end

    # ... #
  end
end