gistfile1.txt

def new
    #send .nil? then you can stub that on @billing_information
    if !user.billing_information.nil?
      user.build_billing_information
      user.billing_information.first_name = user.first_name
      user.billing_information.last_name = user.last_name
      user.billing_information.postal_code = user.profile.postal_code
    end
    define_subscription_details
  end




describe "a GET to new without a subscription and without billing information" do   
      before do
        #as_null_object will catch #first_name=, etc so you don't have to stub them all
        @billing_information = mock(BillingInformation, :nil? => true).as_null_object
        @user.stub!(:subscription).and_return(nil)
        # like this
        @user.stub!(:billing_information).and_return(@billing_information)
      end
      it "should get the new subscription page" do
        get :new
        response.should be_success
      end      
    end