def test_reduce_puzzle_fail() -> None: """Given an empty board reduce will fail and return none""" board_string = '.' * SB.num_boxes() board = SB.grid_values(board_string) sbrd = SB() solution = sbrd.reduce_puzzle(board) assert solution is None
def test_validate_fail() -> None: """Validation function correctly fails on incomplete board""" board_string = ('4.....8.5.3..........7......2.....6.....8.4......1.......' '6.3.7.5..2.....1.4......') board = SB.grid_values(board_string) sbrd = SB() solution = sbrd.reduce_puzzle(board) valid = sbrd.validate(solution) assert valid is False
def test_validate() -> None: """Validation function correctly validates complete board""" board_string = ('..3.2.6..9..3.5..1..18.64....81.29..7.......8..67.82..' '..26.95..8..2.3..9..5.1.3..') board = SB.grid_values(board_string) sbrd = SB() solution = sbrd.reduce_puzzle(board) valid = sbrd.validate(solution) assert valid is True
def test_reduce_puzzle() -> None: """Ensure board state after recursive reduce is correct""" board_string = ('..3.2.6..9..3.5..1..18.64....81.29..7.......8..67.82..' '..26.95..8..2.3..9..5.1.3..') expected_string = ('4,8,3,9,2,1,6,5,7,9,6,7,3,4,5,8,2,1,2,5,1,8,7,6,4,9,3,' '5,4,8,1,3,2,9,7,6,7,2,9,5,6,4,1,3,8,1,3,6,7,9,8,2,4,5,' '3,7,2,6,8,9,5,1,4,8,1,4,2,5,3,7,6,9,6,9,5,4,1,7,3,8,2') board = SB.grid_values(board_string) sbrd = SB() solution = sbrd.reduce_puzzle(board) solution_string = sbrd.board_to_str(solution) assert solution_string == expected_string
def test_sorted_box_possibilities() -> None: """Ensure order of sorted box possibilities with given reduced board""" board_string = ('4.....8.5.3..........7......2.....6.....8.4......1.......' '6.3.7.5..2.....1.4......') expected_sort = ['G2', 'H7', 'A4', 'A6', 'E4', 'F4', 'G1', 'G3', 'G5', 'H5', 'H8', 'I4', 'I5', 'A2', 'A5', 'A8', 'B8', 'C1', 'D1', 'D4', 'D6', 'E1', 'G7', 'H2', 'H9', 'I2', 'I6', 'A3', 'B1', 'B4', 'B5', 'B7', 'C2', 'C7', 'C8', 'D3', 'D5', 'D7', 'D9', 'E2', 'E3', 'E6', 'E8', 'E9', 'F1', 'F3', 'F6', 'F7', 'F8', 'F9', 'G9', 'I7', 'I8', 'I9', 'B6', 'B9', 'C3', 'C5', 'C6', 'C9', 'B3'] board = SB.grid_values(board_string) sbrd = SB() reduced = sbrd.reduce_puzzle(board) SB.display(reduced) sorted_boxes = SB.sorted_box_possibilities(reduced) assert sorted_boxes == expected_sort
def test_reduce_puzzle_incomplete() -> None: """Ensure given a more complex puzzle reduce terminates incomplete""" board_string = ('4.....8.5.3..........7......2.....6.....8.4......1.......' '6.3.7.5..2.....1.4......') expected_string = ('4,1679,12679,139,2369,269,8,1239,5,26789,3,1256789,' '14589,24569,245689,12679,1249,124679,2689,15689,' '125689,7,234569,245689,12369,12349,123469,3789,2,' '15789,3459,34579,4579,13579,6,13789,3679,15679,15679,' '359,8,25679,4,12359,12379,36789,4,56789,359,1,25679,' '23579,23589,23789,289,89,289,6,459,3,1259,7,12489,5,' '6789,3,2,479,1,69,489,4689,1,6789,4,589,579,5789,' '23569,23589,23689') board = SB.grid_values(board_string) sbrd = SB() solution = sbrd.reduce_puzzle(board) solution_string = sbrd.board_to_str(solution) assert solution_string == expected_string