public void AddTetriminoAt_TakenSpot_ThrowException()
{
Block[] blocks = { new Block(), new Block() };
Tetrimino tetrimino = new Tetrimino(Direction.UP, blocks);
Point point = new Point(2, 2);
_tetrisBoard.AddBlockAt(new Block(), new Point(2, 2));
Assert.Throws <Exceptions.NoOverwriteBlockException>(
() => _tetrisBoard.AddTetriminoAt(tetrimino, point)
);
}