public void TurnerByOrientation()
{
var turner = new TurnerClockwise();
var orientation = Orientation.North;
orientation = turner.TurnClockwise(orientation);
Assert.AreEqual(Orientation.West, orientation);
orientation = turner.TurnClockwise(orientation);
Assert.AreEqual(Orientation.South, orientation);
orientation = turner.TurnClockwise(orientation);
Assert.AreEqual(Orientation.East, orientation);
orientation = turner.TurnClockwise(orientation);
Assert.AreEqual(Orientation.North, orientation);
}
public void TurnerByDirection()
{
var turner = new TurnerClockwise();
var direction = new Point(0, 1);
turner.TurnClockwise(direction);
Assert.AreEqual(new Point(-1, 0), direction);
turner.TurnClockwise(direction);
Assert.AreEqual(new Point(0, -1), direction);
turner.TurnClockwise(direction);
Assert.AreEqual(new Point(1, 0), direction);
turner.TurnClockwise(direction);
Assert.AreEqual(new Point(0, 1), direction);
}