1require "spec_helper"
 2
 3describe North do
 4  let(:sut) { North.new }
 5  context "when moving forward" do
 6    let(:plateau) { Plateau.new(5, 5) }
 7    it "should move to the next position" do
 8      @location.current(:y).should == 4
 9    end
10    before do
11      @location = Location.new(0, 3, sut)
12      sut.forward(@location, plateau)
13    end
14  end
15  context "when turning right" do
16    it "should face east" do
17      sut.turn_right.should be_an_instance_of(East)
18    end
19  end
20  context "when turning left" do
21    it "should face west" do
22      sut.turn_left.should be_an_instance_of(West)
23    end
24  end
25  context "when displayed" do
26    it "should display 'N'" do
27      sut.to_s.should == 'N'
28    end
29  end
30end