gistfile1.txt

require File.expand_path(File.join(File.dirname(__FILE__), '..', 'spec_helper'))

describe DataMapper::Associations do
  describe "#has" do
    before do
      class Car
        include DataMapper::Resource
        property :id, Serial

        has 1, :engine
      end

      class Engine
        include DataMapper::Resource
        property :id, Serial

        belongs_to :car
      end
    end
    
    it "should raise an error when has n..n is specified" do
      lambda do 
        class BadCar
          include DataMapper::Resource
          
          has n..n, :pistons
        end
      end.should raise_error(ArgumentError)
    end

    describe "1" do
      it "should create a new parent child relationship" do
        c = Car.new
        c.should respond_to(:engine)
        c.should respond_to(:engine=)
      end
    end
      
    describe "n" do
      before(:each) do
        class Car
          include DataMapper::Resource
          property :id, Serial

          has 4, :doors
        end
        
        class Door
          include DataMapper::Resource
          property :id, Serial

          belongs_to :car
        end
      end
      
      it "should create a new one to many relationship" do
        
      end
    end
  end
  
  describe "#belongs_to" do
    it "should create a new child parent relationship" do
      e = Engine.new
      e.should respond_to(:car)
      e.should respond_to(:car=)
    end
  end
end