def test_find_top_with_col_filled(board_size, up_to):
b = Board(*board_size)
for i in range(up_to):
row_to_populate = b.height - i - 1
b.cells[0, row_to_populate] = Cell.BLACK
row = b.find_top(0)
expected = b.height - up_to - 1
assert row == expected
def test_find_top_empty_board(boardsize, col):
b = Board(*boardsize)
row = b.find_top(col)
expected = b.height - 1
assert row == expected