def test_get_box_from_cell_with_valid():
sudoku_board = Sudoku(boards.unsolved_easy)
box1 = sudoku_board.get_box_from_cell(0, 0)
expected_box1 = array([[5, 3, 0], [6, 0, 0], [0, 9, 8]])
assert (box1 == expected_box1).all()
box2 = sudoku_board.get_box_from_cell(1, 3)
expected_box2 = array([[0, 7, 0], [1, 9, 5], [0, 0, 0]])
assert (box2 == expected_box2).all()
box6 = sudoku_board.get_box_from_cell(3, 8)
expected_box6 = array([[0, 0, 3], [0, 0, 1], [0, 0, 6]])
assert (box6 == expected_box6).all()
box7 = sudoku_board.get_box_from_cell(8, 2)
expected_box7 = array([[0, 6, 0], [0, 0, 0], [0, 0, 0]])
assert (box7 == expected_box7).all()
box9 = sudoku_board.get_box_from_cell(6, 6)
expected_box9 = array([[2, 8, 0], [0, 0, 5], [0, 7, 9]])
assert (box9 == expected_box9).all()
def get_possible_cell_values(sudoku: sudoku_board.Sudoku, row: int,
column: int) -> List[int]:
all_values = [1, 2, 3, 4, 5, 6, 7, 8, 9]
possible_values = []
if sudoku.board_numbers[row][column] != 0:
possible_values.append(sudoku.board_numbers[row][column])
else:
row_values = sudoku.board_numbers[row, :].flatten()
column_values = sudoku.board_numbers[:, column].flatten()
box_values = sudoku.get_box_from_cell(row, column).flatten()
used_values = unique(
list(filter(non_zero, chain(row_values, column_values,
box_values))))
for value in all_values:
if value not in used_values:
possible_values.append(value)
return possible_values