public void RotateLeft_FourTimesReturnsToBeginning()
{
List<Vector2> startPosition = new List<Vector2>() { new Vector2(3, 2), new Vector2(3, 1), new Vector2(3, 0) };
IBlock block = new LetterIBlock();
block.RotateLeft();
block.RotateLeft();
block.RotateLeft();
block.RotateLeft();
Assert.AreEqual(startPosition, (block.Shape(new Vector2(3, 2))));
}
public void RotateLeft_Once()
{
IBlock block = new LetterIBlock();
block.RotateLeft();
Assert.AreEqual(new List<Vector2>() { new Vector2(3, 2), new Vector2(4, 2), new Vector2(5, 2) },(block.Shape(new Vector2(3, 2))));
}