Fixed finish order

- Added test to check order is determined by velocity
- Modified Race class to allow for unit testing

#story[15]

src/test/java/seng302/Model/RaceTest.java

@@ -1,5 +1,8 @@
 package seng302.Model;
 
+import javafx.collections.FXCollections;
+import javafx.collections.ObservableList;
+import javafx.scene.paint.Color;
 import org.junit.Ignore;
 import org.junit.Test;
 import seng302.GPSCoordinate;
@@ -8,6 +11,8 @@ import seng302.Model.ConstantVelocityRace;
 import seng302.Model.Leg;
 
 import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Observable;
 
 import static org.junit.Assert.assertTrue;
 
@@ -41,4 +46,24 @@ public class RaceTest {
 //        ConstantVelocityRace race = new ConstantVelocityRace(boats, legs);
 //        race.run();
 //    }
+
+    @Test
+    public void finishOrderDeterminedByVelocity() {
+        BoatInRace[] boats = {
+                new BoatInRace("NZ", 2000, Color.BEIGE, "NZ"),
+                new BoatInRace("AU", 2800, Color.BEIGE, "AU")
+        };
+        ArrayList<Leg> legs = new ArrayList<>();
+        legs.add(new Leg("Start", new GPSCoordinate(32.296577, -64.854304),new GPSCoordinate(32.293039, -64.843983),0));
+        legs.add(new Leg("Start", new GPSCoordinate(32.293039, -64.843983),new GPSCoordinate(32.284680, -64.850045),1));
+        Race race = new ConstantVelocityRace(boats, legs);
+        race.disableTimer();
+
+        // Boats should finish in an order determined by their velocity
+        Arrays.sort(boats, (a,b) -> (int)(b.getVelocity()-a.getVelocity()));
+        race.run();
+
+        for(int i = 0; i < boats.length; i++)
+            assertTrue(boats[i].equals(race.getStartingBoats().get(i)));
+    }
 }