Added testing for the tack/gybe settings.

tags: #story[1105]

src/main/java/seng302/model/Yacht.java

@@ -131,9 +131,7 @@ public class Yacht {
             }
         }
 
-        if (isAuto) {
         runAutoPilot();
-        }
 
         //UPDATE BOAT LOCATION
         lastLocation = location;
@@ -353,17 +351,15 @@ public class Yacht {
      * Moves the boat towards the given heading when the auto pilot was set. Disables the auto pilot
      * in the event that the boat is within the range of 1 turn step of its goal.
      */
-    private void runAutoPilot() {
-        if (autoHeading == null) {
-            isAuto = false;
-            // TODO: 10/08/17 possibly throw some sort of exception here maybe? autopilot shouldn't be true if there's no heading.
-        }
+    public void runAutoPilot() {
+        if (isAuto) {
             turnTowardsHeading(autoHeading);
             if (Math.abs(heading - autoHeading)
                 <= TURN_STEP) { //Cancel when within 1 turn step of target.
                 isAuto = false;
             }
         }
+    }
 
     public void toggleSailIn() {
         sailIn = !sailIn;
@@ -438,8 +434,7 @@ public class Yacht {
 
             // Take optimal heading and turn into a boat heading rather than a wind heading.
             optimalHeading =
-                optimalHeading + (double) Math
-                    .floorMod(GameState.getWindDirection().longValue(), 360L);
+                optimalHeading + GameState.getWindDirection();
 
             setAutoPilot(optimalHeading);
         }

src/test/java/seng302/models/YachtTest.java

@@ -0,0 +1,53 @@
+package seng302.models;
+
+import static org.junit.Assert.assertEquals;
+
+import java.util.HashMap;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import seng302.gameServer.GameState;
+import seng302.model.Yacht;
+
+
+public class YachtTest {
+
+    private static Yacht y1;
+    //Yacht y2;
+    private static Double windDirection = 45d;
+    private static Double windSpeed = 20d;
+    private static GameState gs;
+
+    @BeforeClass
+    public static void setUp() {
+        y1 = new Yacht("Yacht", 101, "Y1", "Y1", "Yacht 1", "C1");
+        gs = new GameState("localhost");
+    }
+
+    @Test
+    public void tackGybeTest() {
+        HashMap<Double, Double> values = new HashMap<>();
+        values.put(280.0, 80.0);
+        values.put(270.0, 90.0);
+        values.put(359.0, 1.0);
+        values.put(180.0, 180.0);
+        values.put(75.0, 285.0);
+
+        for (Double begin : values.keySet()) {
+            y1.setHeading(begin);
+            y1.tackGybe(windDirection);
+            for (int i = 0; i < 50; i++) {
+                y1.runAutoPilot();
+            }
+            assertEquals(values.get(begin), y1.getHeading(), 5.0);
+        }
+
+    }
+
+
+    @AfterClass
+    public static void tearDown() {
+        y1 = null;
+    }
+
+}