Commit fe27547

@@ -1,4 +1,4 @@
-namespace mars.rover.presentation
+namespace mars.rover.presentation.model
 {
     public class CommandLineArgument
     {

@@ -2,7 +2,7 @@ using System;
 using mars.rover.common;
 using mars.rover.domain;
 
-namespace mars.rover.presentation
+namespace mars.rover.presentation.model
 {
     public class HeadingFactory : Specification<string>
     {

@@ -2,7 +2,7 @@ using System;
 using mars.rover.common;
 using mars.rover.domain;
 
-namespace mars.rover.presentation
+namespace mars.rover.presentation.model
 {
     public class Navigation : Specification<char>, ParameterizedCommand<Rover>
     {

@@ -0,0 +1,59 @@
+using mars.rover.domain;
+
+namespace mars.rover.presentation.model
+{
+    internal class UnknownHeadingFactory : HeadingFactory
+    {
+        public UnknownHeadingFactory() : base(null, null)
+        {
+        }
+
+        public override bool is_satisfied_by(string item)
+        {
+            return true;
+        }
+
+        public override Heading create(Plateau plateau)
+        {
+            return new UnknownHeading();
+        }
+
+        class UnknownHeading : Heading
+        {
+            public bool Equals(Heading other)
+            {
+                if (null == other) return false;
+                return other is UnknownHeading;
+            }
+
+            public Heading turn_left()
+            {
+                return this;
+            }
+
+            public Heading turn_right()
+            {
+                return this;
+            }
+
+            public void move_forward_from(Coordinate x, Coordinate y)
+            {
+            }
+
+            public override string ToString()
+            {
+                return "Unknown";
+            }
+
+            public override bool Equals(object obj)
+            {
+                return Equals(obj as Heading);
+            }
+
+            public override int GetHashCode()
+            {
+                return ToString().GetHashCode();
+            }
+        }
+    }
+}
\ No newline at end of file

@@ -0,0 +1,20 @@
+using mars.rover.domain;
+
+namespace mars.rover.presentation.model
+{
+    internal class UnknownNavigation : Navigation
+    {
+        public UnknownNavigation() : base('a', null)
+        {
+        }
+
+        public override void run_against(Rover rover)
+        {
+        }
+
+        public override bool is_satisfied_by(char item)
+        {
+            return true;
+        }
+    }
+}
\ No newline at end of file

@@ -18,7 +18,7 @@ namespace mars.rover.presentation
             writer.WriteLine("Enter upper right coordinates:");
             presenter.provide_upper_right_coordinates(reader.ReadLine());
 
-            for (int i = 0; i < 2; i++)
+            for (var i = 0; i < 2; i++)
             {
                 writer.WriteLine("enter coordinates to deploy a rover to:");
                 presenter.deploy_rover_to(reader.ReadLine());

@@ -2,6 +2,7 @@ using System;
 using System.Linq;
 using mars.rover.common;
 using mars.rover.domain;
+using mars.rover.presentation.model;
 
 namespace mars.rover.presentation
 {

@@ -4,6 +4,7 @@ using System.Linq;
 using mars.rover.common;
 using mars.rover.domain;
 using mars.rover.presentation;
+using mars.rover.presentation.model;
 
 namespace mars.rover
 {
@@ -32,12 +33,14 @@ namespace mars.rover
                             new HeadingFactory("E", x => new East(x)),
                             new HeadingFactory("W", x => new West(x)),
                             new HeadingFactory("S", x => new South(x)),
+                            new UnknownHeadingFactory(),
                         },
                     new DefaultRegistry<Navigation>
                         {
                             new Navigation('L', x => x.turn_left()),
                             new Navigation('R', x => x.turn_right()),
                             new Navigation('M', x => x.move_forward()),
+                            new UnknownNavigation(),
                         }
                     ));
             program.run_against(args.Select(x => (CommandLineArgument) x));

@@ -48,12 +48,12 @@
     <Compile Include="common\DefaultRegistry.cs" />
     <Compile Include="common\EnumerableExtensions.cs" />
     <Compile Include="common\Registry.cs" />
-    <Compile Include="presentation\HeadingFactory.cs" />
+    <Compile Include="presentation\model\HeadingFactory.cs" />
     <Compile Include="common\CallbackCommand.cs" />
     <Compile Include="presentation\CaptureUserInstructionsConsoleView.cs" />
     <Compile Include="presentation\CaptureUserInstructionsView.cs" />
     <Compile Include="common\Command.cs" />
-    <Compile Include="presentation\CommandLineArgument.cs" />
+    <Compile Include="presentation\model\CommandLineArgument.cs" />
     <Compile Include="presentation\infrastructure\CommandProcessor.cs" />
     <Compile Include="domain\Coordinate.cs" />
     <Compile Include="domain\East.cs" />
@@ -64,7 +64,7 @@
     <Compile Include="common\ParameterizedCommand.cs" />
     <Compile Include="domain\Mars.cs" />
     <Compile Include="domain\Plateau.cs" />
-    <Compile Include="presentation\Navigation.cs" />
+    <Compile Include="presentation\model\Navigation.cs" />
     <Compile Include="presentation\Presenter.cs" />
     <Compile Include="presentation\CaptureUserInstructionsPresenter.cs" />
     <Compile Include="common\Specification.cs" />
@@ -73,6 +73,8 @@
     <Compile Include="domain\Rover.cs" />
     <Compile Include="domain\South.cs" />
     <Compile Include="domain\West.cs" />
+    <Compile Include="presentation\model\UnknownHeadingFactory.cs" />
+    <Compile Include="presentation\model\UnknownNavigation.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 

@@ -5,6 +5,7 @@ using developwithpassion.bdd.mbunit.standard.observations;
 using mars.rover;
 using mars.rover.common;
 using mars.rover.presentation;
+using mars.rover.presentation.model;
 
 namespace specifications
 {