Few more tests

BattleShipMicro/BattleShipMicro.csproj

@@ -60,8 +60,11 @@
   <ItemGroup>
     <Compile Include="BattleShipTests.cs" />
     <Compile Include="IOrientation.cs" />
+    <Compile Include="IResult.cs" />
+    <Compile Include="IShip.cs" />
     <Compile Include="Orientation.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Result.cs" />
   </ItemGroup>
   <ItemGroup>
     <None Include="packages.config" />

BattleShipMicro/BattleShipTests.AircraftCarrierReturnsSpecifiedIndicatorForHorizontalHigherThanPoint.approved.txt

@@ -0,0 +1 @@
+

BattleShipMicro/BattleShipTests.AircraftCarrierReturnsSpecifiedIndicatorForHorizontalLessThanPoint.approved.txt

@@ -0,0 +1 @@
+

BattleShipMicro/BattleShipTests.AircraftCarrierReturnsSpecifiedIndicatorForNotBeingAtPoint.approved.txt

@@ -0,0 +1 @@
+

BattleShipMicro/BattleShipTests.cs

@@ -11,15 +11,13 @@ public class BattleShipTests
         [TestMethod]
         public void AircraftCarrierHorizontal()
         {
-            //Create an aircraft carrier at zero, zero horizontally
             IShip subject = new AircraftCarrier(0, 0, Orientation.Horizontal);
 
             Approvals.Verify(subject);
         }
         [TestMethod]
         public void AircraftCarrierVerical()
         {
-            //Create an aircraft carrier at zero, zero horizontally
             IShip subject = new AircraftCarrier(0, 0, Orientation.Vertical);
 
             Approvals.Verify(subject);
@@ -29,22 +27,45 @@ public void AircraftCarrierVerical()
         [TestMethod]
         public void AircraftCarrierReturnsSpecifiedIndicatorForBeingAtPoint()
         {
-            //Create an aircraft carrier at zero, zero horizontally
             IShip subject = new AircraftCarrier(0, 0, Orientation.Horizontal);
             IResult result = subject.At(0, 0);
             Approvals.Verify(result);
         }
+        [TestMethod]
+        public void AircraftCarrierReturnsSpecifiedIndicatorForNotBeingAtPoint()
+        {
+            IShip subject = new AircraftCarrier(0, 0, Orientation.Horizontal);
+            IResult result = subject.At(1, 1);
+            Approvals.Verify(result);
+        }
+        [TestMethod]
+        public void AircraftCarrierReturnsSpecifiedIndicatorForHorizontalLessThanPoint()
+        {
+            IShip subject = new AircraftCarrier(1, 0, Orientation.Horizontal);
+            IResult result = subject.At(0, 1);
+            Approvals.Verify(result);
+        }
+        [TestMethod]
+        public void AircraftCarrierReturnsSpecifiedIndicatorForHorizontalHigherThanPoint()
+        {
+            IShip subject = new AircraftCarrier(1, 0, Orientation.Horizontal);
+            IResult result = subject.At(10, 1);
+            Approvals.Verify(result);
+        }
 
     }
 
-    public interface IResult { }
-
     public class AircraftCarrier : IShip
     {
+        private const int _size = 5;
+        private readonly int _horzCoord;
+        private readonly int _vertCoord;
         private readonly IOrientation _orientation;
 
         public AircraftCarrier(int horzCoord, int vertCoord, IOrientation orientation)
         {
+            _horzCoord = horzCoord;
+            _vertCoord = vertCoord;
             _orientation = orientation;
         }
 
@@ -55,20 +76,16 @@ public override string ToString()
 
         public IResult At(int horzCoord, int vertCoord)
         {
+            if (_orientation.IsHorizontal())
+            {
+                if (horzCoord < _horzCoord)
+                    return new Result("");
+                if (_horzCoord + _size <= horzCoord)
+                    return new Result("");
+                if (vertCoord != _vertCoord)
+                    return new Result("");
+            }
             return new Result("A");
         }
     }
-
-    public class Result : IResult
-    {
-        private readonly string _result;
-
-        public Result(string result) => _result = result;
-        public override string ToString() => _result;
-    }
-
-    public interface IShip
-    {
-        IResult At(int horzCoord, int vertCoord);
-    }
 }

BattleShipMicro/IResult.cs

@@ -0,0 +1,3 @@
+namespace BattleShipMicro {
+    public interface IResult { }
+}

BattleShipMicro/IShip.cs

@@ -0,0 +1,6 @@
+namespace BattleShipMicro {
+    public interface IShip
+    {
+        IResult At(int horzCoord, int vertCoord);
+    }
+}

BattleShipMicro/Result.cs

@@ -0,0 +1,9 @@
+namespace BattleShipMicro {
+    public class Result : IResult
+    {
+        private readonly string _result;
+
+        public Result(string result) => _result = result;
+        public override string ToString() => _result;
+    }
+}