def test_could_collapse_error():
tiles = []
for _ in range(9):
tiles.append(Tile())
board = Board(tiles)
with pytest.raises(InvalidCollapseError):
board.could_collapse(1, 'x1')
def test_could_collapse():
tiles = []
for _ in range(9):
tiles.append(Tile())
board = Board(tiles)
board.add_entangl_tile(1)
board.add_entangl_tile(2)
board.tiles()[1].set_move_on_tile('x1')
board.tiles()[2].set_move_on_tile('x1')
assert board.could_collapse(1, 'x1') is True