Here's what we worked on today...

dogs_and_cats.rb

# gem install rspec

class Dog
  attr_reader :height, :distance
  
  def initialize(cat)
    @cat = cat
  end
  
  def jump!
    @height = 24
  end
  
  def land!
    @cat.jumped_over!
    @height = 0
    @distance = 36
  end
  
  def on_the_ground?
    @height == 0
  end  
end

class Cat
  def jumped_over?
    @jumped_over
  end
  
  def jumped_over!
    @jumped_over = true
  end
end


describe "a dog jumping over a cat" do
  context "a fake cat" do
    before(:each) do
      @cat = mock("cat")
    end
  
    it "jumps 2 feet high" do
      dog = Dog.new(@cat)
      dog.jump!
      dog.height.should == 24
    end
  
    it "lands 3 feet forward" do
      @cat.stub!(:jumped_over!)

      dog = Dog.new(@cat)
      dog.jump!
      dog.land!
      dog.should be_on_the_ground
      dog.distance.should == 36
    end
  end

  context "with a real cat" do
    it "doesn't hit the cat" do
      # pending('i like hitting cats')

      # cat = mock("cat")
      # cat.should_receive(:jumping_over_you)
    
      cat = Cat.new
    
      dog = Dog.new(cat)
      dog.jump!
      dog.land!
    
      cat.should be_jumped_over
    end
  end
  
  
  describe "when the cat is also jumping" do
    it "foo" do
      # [1, 2, 4].should include(3)
    end
  end
  
  describe "when the cat is dead" do
    
  end
  
end