// A test that a room can be added to an empty map.
 @Test
 public void addToEmptyMap() {
   Map m = new Map();
   Room firstroom = Mockito.mock(Room.class);
   m.addRoom(firstroom);
   assertSame(firstroom, m.getLocation());
 }
 // Testing to getter functions. These return a member variable so they should
 // always be equal to the value of the member.
 @Test
 public void setLocationTest() {
   Map m = new Map();
   Room room = Mockito.mock(Room.class);
   m.setLocation(room);
   assertSame(room, m.getLocation());
 }
 // A test that a room can be added to a map with one room in it.
 @Test
 public void addToOneRoomTest() {
   Map m = new Map();
   Room firstroom = Mockito.mock(Room.class);
   Room secondroom = Mockito.mock(Room.class);
   m.addRoom(firstroom);
   m.addRoom(secondroom);
   assertSame(secondroom, m.getLocation().northRoom);
 }
 // A test that a move north doesn't do anything if there is not a room.
 @Test
 public void illegalMoveNorthNoRoomTest() {
   Map map = new Map();
   Room loc = Mockito.mock(Room.class);
   Door door = Mockito.mock(Door.class);
   Mockito.when(loc.getNorthRoom()).thenReturn(null);
   Mockito.when(loc.getNorthDoor()).thenReturn(door);
   map.setLocation(loc);
   map.moveNorth(loc);
   assertEquals(loc, map.getLocation());
 }
 // A test that a move south doesn't do anything if there is not a door there.
 @Test
 public void illegalMoveSouthNoDoorTest() {
   Map map = new Map();
   Room loc = Mockito.mock(Room.class);
   Room loc2 = Mockito.mock(Room.class);
   Mockito.when(loc.getSouthRoom()).thenReturn(loc2);
   Mockito.when(loc.getSouthDoor()).thenReturn(null);
   map.setLocation(loc);
   map.moveSouth(loc);
   assertEquals(loc, map.getLocation());
 }
 // A test if a move south works if there is a door and room to the south.
 @Test
 public void legalMoveSouthTest() {
   Map map = new Map();
   Room loc = Mockito.mock(Room.class);
   Room loc2 = Mockito.mock(Room.class);
   Door door = Mockito.mock(Door.class);
   Mockito.when(loc.getSouthRoom()).thenReturn(loc2);
   Mockito.when(loc.getSouthDoor()).thenReturn(door);
   map.setLocation(loc);
   map.moveSouth(loc);
   assertEquals(loc2, map.getLocation());
 }
 // The constructor should take an input and assign it to the
 // object. The member should be set to this value.
 @Test
 public void contructorTest() {
   Map m = new Map();
   assertEquals(null, m.getLocation());
 }