public void GetAdjacentPosition_ShouldThrowWhenNullIsPassedIn()
{
var position = new Position(2, 3);
Action call = () => position.GetAdjacentPosition(null);
call.ShouldThrow<ArgumentNullException>();
}
public void GetAdjacentPosition_ShouldReturnCorrectPosition()
{
var position = new Position(2, 3);
var adjacentPosition =
position.GetAdjacentPosition(Direction.North);
adjacentPosition.X.Should().Be(2);
adjacentPosition.Y.Should().Be(4);
}
public LawnMowerState GetStateAfterMoveForward()
{
return(new LawnMowerState(
Position.GetAdjacentPosition(Direction),
Direction));
}
