@Test
public void testGet() {
assertEquals(Integer.valueOf(5), coord.get(Dimension.X));
assertEquals(Integer.valueOf(5), coord.get(Dimension.Y));
}
@Test
public void testAdd() {
assertEquals(new Coordinate(8, 9), coord.add(new Coordinate(3, 4)));
assertEquals(new Coordinate(2, 1), coord.add(new Coordinate(-3, -4)));
}