diff options
| -rw-r--r-- | lib/rover.rb | 6 | ||||
| -rw-r--r-- | spec/rover_specs.rb | 18 |
2 files changed, 23 insertions, 1 deletions
diff --git a/lib/rover.rb b/lib/rover.rb index 35ab1f9..90d7757 100644 --- a/lib/rover.rb +++ b/lib/rover.rb @@ -42,6 +42,9 @@ class East def turn_left North.new end + def forward(current_location) + current_location[:x] = current_location[:x]+1 + end end class West def direction @@ -53,6 +56,9 @@ class West def turn_left South.new end + def forward(current_location) + current_location[:x] = current_location[:x]-1 + end end class South def direction diff --git a/spec/rover_specs.rb b/spec/rover_specs.rb index c8e5ec8..a54e2c2 100644 --- a/spec/rover_specs.rb +++ b/spec/rover_specs.rb @@ -73,11 +73,19 @@ describe Rover do @sut.heading.must_equal :north end end + describe "when driving forward" do + before do + @sut.move_forward(@terrain) + end + it "should increment the x coordinate on the terrain" do + @sut.location.must_equal({:x => 1, :y => 0}) + end + end end describe "when facing west" do before do - @sut = create_sut :west + @sut = create_sut :west, 1, 0 end describe "when turning right" do it "should face north" do @@ -91,6 +99,14 @@ describe Rover do @sut.heading.must_equal :south end end + describe "when driving forward" do + before do + @sut.move_forward(@terrain) + end + it "should decrement the x coordinate on the terrain" do + @sut.location.must_equal({:x => 0, :y => 0}) + end + end end end |