Add tests to repository

tests/java/ShipSquare.java

@@ -0,0 +1,40 @@
+import javax.swing.ImageIcon;
+
+/**
+ * A Ship square represents a square that contains a battle ship, but has not
+ * yet been bombed. Ship Squares can be either visible or invisible (depending
+ * on which side they are).
+ * 
+ * @author djp
+ */
+public class ShipSquare extends GridSquare {	
+	private BattleShip ship; 
+	private Type type;
+	
+	public enum Type {
+		VERTICAL_TOP_END,
+		HORIZONTAL_MIDDLE		
+	};
+	
+	/**
+     * Construct a ShipSquare representing part of a battle ship (either a
+     * middle or end piece).
+     * 
+     */
+	public ShipSquare(Type type, BattleShip ship) {
+		this.type = type;
+		this.ship = ship;		
+	}
+	
+	/**
+	 * Get the ship that this square is part of.
+	 * @return
+	 */
+	public BattleShip getShip() { return ship; }
+	
+	/**
+	 * Determine what part of the ship this piece represents.
+	 * @return
+	 */
+	public Type getType() { return type; }
+}