public void When_Rover_At_1_2_South_And_Move_Should_Be_1_1()
        {
            var direction      = new South();
            var newCoordinates = direction.MoveForward(new Coordinates(1, 2));

            Assert.That(newCoordinates.XCoordinate, Is.EqualTo(1));
            Assert.That(newCoordinates.YCoordinate, Is.EqualTo(1));
        }