def test_get_tile():
board = Board(empty_tiles(4))
board = set_tile(board, 1, 2, 3)
assert get_tile(board, 1, 2) == 3
def test_get_tile_should_error_on_negative_col():
board = Board(empty_tiles(4))
with raises(AttributeError):
get_tile(board, -1, 1)
def test_get_tile_should_error_on_col_too_high():
board = Board(empty_tiles(4))
with raises(AttributeError):
get_tile(board, 4, 1)