public void RoverControlSignal_Should_Be_Created_From_Letter(char controlLetter,
RoverControlSignal expectedControlSignal)
{
var roverControlSignal = controlLetter.RoverControlSignalFromControlLetter();
roverControlSignal.ShouldBe(expectedControlSignal);
}
public void RoverPosition_Should_Be_Changed_By_Control_Signal(RoverPosition position,
RoverControlSignal controlSignal, RoverPosition expectedPosition)
{
var newPosition = position.CalculateNewPosition(controlSignal);
newPosition.X.ShouldBe(expectedPosition.X);
newPosition.Y.ShouldBe(expectedPosition.Y);
newPosition.Heading.ShouldBe(expectedPosition.Heading);
}
public RoverPosition CalculateNewPosition(RoverControlSignal controlSignal)
{
return controlSignal switch
{
RoverControlSignal.Left => Heading switch
{
CardinalCompassPoint.North => new RoverPosition(X, Y, CardinalCompassPoint.West),
CardinalCompassPoint.East => new RoverPosition(X, Y, CardinalCompassPoint.North),
CardinalCompassPoint.South => new RoverPosition(X, Y, CardinalCompassPoint.East),
CardinalCompassPoint.West => new RoverPosition(X, Y, CardinalCompassPoint.South),
_ => throw new ArgumentOutOfRangeException()
},
