when facing west and turning left and right.

2 files changed, 22 insertions, 0 deletions

diff --git a/lib/rover.rb b/lib/rover.rb
index 591ec5a..ad4042d 100644
--- a/lib/rover.rb
+++ b/lib/rover.rb
@@ -11,6 +11,8 @@ class Rover
       @heading = :south
     elsif @heading == :south
       @heading = :west
+    elsif @heading == :west
+      @heading = :north
     end
   end
   def turn_left
@@ -20,6 +22,8 @@ class Rover
       @heading = :north
     elsif @heading == :south
       @heading = :east
+    elsif @heading == :west
+      @heading = :south
     end
   end
 end
diff --git a/spec/rover_specs.rb b/spec/rover_specs.rb
index 7bef598..318590f 100644
--- a/spec/rover_specs.rb
+++ b/spec/rover_specs.rb
@@ -59,4 +59,22 @@ describe Rover do
     end
   end
 
+  describe "when facing west" do
+    before do
+      @sut.heading= :west
+    end
+    describe "when turning right" do
+      it "should face north" do
+        @sut.turn_right
+        @sut.heading.must_equal :north
+      end
+    end
+    describe "when turning left" do
+      it "should face south" do
+        @sut.turn_left
+        @sut.heading.must_equal :south
+      end
+    end
+  end
+
 end