public void TestGetNextPosition_CurrentDirectionSouth()
        {
            var robot = new ToyRobot { Direction = Direction.South, Position = new Position(0, 1) };
            var nextPosition = robot.GetNextPosition();

            Assert.AreEqual(0, nextPosition.X);
            Assert.AreEqual(0, nextPosition.Y);
        }
        public void TestGetNextPosition_CurrentDirectionEast()
        {
            var robot = new ToyRobot { Direction = Direction.East, Position = new Position(0, 0) };
            var nextPosition = robot.GetNextPosition();

            Assert.AreEqual(1, nextPosition.X);
            Assert.AreEqual(0, nextPosition.Y);
        }