public void ShouldMoveRight()
        {
            var mower = new Mower(0, 0, 0);

            mower.MoveRight();
            Assert.That(mower.Direction, Is.EqualTo(1));
            mower.MoveRight();
            Assert.That(mower.Direction, Is.EqualTo(2));
            mower.MoveRight();
            Assert.That(mower.Direction, Is.EqualTo(3));
            mower.MoveRight();
            Assert.That(mower.Direction, Is.EqualTo(0));
        }
        public void ShouldMoveEast()
        {
            var mower = new Mower(0, 0, 0);
            mower.MoveRight();
            mower.MoveForward();

            Assert.That(mower.Position.Y, Is.EqualTo(0));
            Assert.That(mower.Position.X, Is.EqualTo(1));
        }