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                """Chess Board unit test module."""  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                import unittest  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                from chess.board import ChessBoard  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                starting_fen_board = "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class TestBoard(unittest.TestCase):  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    """Chess unit test class."""  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    def setUp(self):  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        self.chess_board = ChessBoard()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    @staticmethod  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    def convert_default_white_spaces_to_black(white_positions):  | 
            
                            
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                        return [(7 - row, column) for row, column in white_positions]  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    def verify_pieces_at_locations_are_correct_piece_and_color(self, white_positions, piece):  | 
            
                            
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                        for location in white_positions:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            assert self.chess_board[location].kind == piece  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            assert self.chess_board[location].color == "white"  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        black_positions = self.convert_default_white_spaces_to_black(white_positions)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        for location in black_positions:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            assert self.chess_board[location].kind == piece  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            assert self.chess_board[location].color == "black"  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    def test_init(self):  | 
            
                            
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                        assert len(self.chess_board) == 64  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    def test_has_pawn_at_1_3(self):  | 
            
                            
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                        piece = self.chess_board[(1, 3)]  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        assert len(piece.moves) > 0  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    def test_initial_pawn_positions(self):  | 
            
                            
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                        expected_white_pawn_positions = [(1, 0), (1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (1, 6), (1, 7)]  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        self.verify_pieces_at_locations_are_correct_piece_and_color(expected_white_pawn_positions, "pawn")  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    def test_initial_knight_positions(self):  | 
            
                            
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                        self.verify_pieces_at_locations_are_correct_piece_and_color([(0, 1), (0, 6)], "knight")  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    def test_initial_rook_positions(self):  | 
            
                            
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                        self.verify_pieces_at_locations_are_correct_piece_and_color([(0, 0), (0, 7)], "rook")  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    def test_initial_bishop_positions(self):  | 
            
                            
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                        self.verify_pieces_at_locations_are_correct_piece_and_color([(0, 2), (0, 5)], 'bishop')  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    def test_initial_queen_positions(self):  | 
            
                            
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                        self.verify_pieces_at_locations_are_correct_piece_and_color([(0, 3)], "queen")  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    def test_initial_king_positions(self):  | 
            
                            
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                        self.verify_pieces_at_locations_are_correct_piece_and_color([(0, 4)], "king")  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    def test_starting_board_fen_export(self):  | 
            
                            
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                        assert self.chess_board.generate_fen() == starting_fen_board  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    def test_one_move_fen_export(self):  | 
            
                            
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                        self.chess_board[(6, 0)] = None  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        expected_fen = "rnbqkbnr/1ppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        assert expected_fen == self.chess_board.generate_fen()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    def test_clear_board_removes_all_pieces(self):  | 
            
                            
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                        self.chess_board.clear_board()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        for location in self.chess_board.board:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            assert self.chess_board[location] is None  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    def test_starting_board_fen_import(self):  | 
            
                            
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                        self.chess_board.clear_board()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        self.chess_board.import_fen_board(starting_fen_board)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        expected_white_pawn_positions = [(1, 0), (1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (1, 6), (1, 7)]  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        self.verify_pieces_at_locations_are_correct_piece_and_color(expected_white_pawn_positions, "pawn")  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        self.verify_pieces_at_locations_are_correct_piece_and_color([(0, 1), (0, 6)], "knight")  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        self.verify_pieces_at_locations_are_correct_piece_and_color([(0, 0), (0, 7)], "rook")  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        self.verify_pieces_at_locations_are_correct_piece_and_color([(0, 2), (0, 5)], 'bishop')  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        self.verify_pieces_at_locations_are_correct_piece_and_color([(0, 3)], "queen")  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        self.verify_pieces_at_locations_are_correct_piece_and_color([(0, 4)], "king")  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    def test_starting_board_custom_export(self):  | 
            
                            
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                        expected_json = self.chess_board.load_json()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        exported_json = self.chess_board.export()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        self.compare_boards(exported_json['board'], expected_json['board'])  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        exported_json.pop('board') | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        for key, value in exported_json.items():  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            assert expected_json[key] == value  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        assert len(expected_json) == len(exported_json) + 1  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    @staticmethod  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    def compare_boards(board1, board2):  | 
            
                            
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                    93
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                        for player in board1:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            assert player in board2  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            for piece in board1[player]:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    96
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                                assert piece in board2[player]  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    97
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                                piece_locations1 = board1[player][piece]  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    98
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                                piece_locations2 = board2[player][piece]  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    99
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                                assert len(piece_locations1) == len(piece_locations2)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    100
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                                for location in piece_locations1:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    101
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                                    assert location in piece_locations2  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    102
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                    103
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                    104
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                class TestValidateKnightMoves(unittest.TestCase):  | 
            
                            
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                | 
                    105
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                    106
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                    def setUp(self):  | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    107
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                        self.chess_board = ChessBoard()  | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    108
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                | 
                    109
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                    def test_move_knight(self):  | 
            
                            
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                | 
                    110
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                 | 
                        result = self.chess_board.move((0, 1), (2, 0))  | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    111
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                | 
                    112
                 | 
                                    
                                                     | 
                
                 | 
                        assert result is True  | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    113
                 | 
                                    
                                                     | 
                
                 | 
                        assert self.chess_board[(2, 0)].kind == 'knight'  | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    114
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    115
                 | 
                                    
                                                     | 
                
                 | 
                    def test_move_knight_on_top_of_a_pawn(self):  | 
            
                            
                    | 
                        
                     | 
                     | 
                     | 
                    
                                                                                                    
                        
                         
                                                                                        
                                                                                     
                     | 
                
            
                                                                        
                            
            
                                    
            
            
                | 
                    116
                 | 
                                    
                                                     | 
                
                 | 
                        result = self.chess_board.move((1, 0), (3, 1))  | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    117
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    118
                 | 
                                    
                                                     | 
                
                 | 
                        assert result is False  | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    119
                 | 
                                    
                                                     | 
                
                 | 
                        assert self.chess_board[(1, 3)].kind == 'pawn'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    120
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    121
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    122
                 | 
                                    
                                                     | 
                
                 | 
                class TestValidatePawnMoves(unittest.TestCase):  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    123
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    124
                 | 
                                    
                                                     | 
                
                 | 
                    """Chess movement unit tests."""  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    125
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    126
                 | 
                                    
                                                     | 
                
                 | 
                    def setUp(self):  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    127
                 | 
                                    
                                                     | 
                
                 | 
                        self.chess_board = ChessBoard()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    128
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    129
                 | 
                                    
                                                     | 
                
                 | 
                    def test_pawn_can_move_forward(self):  | 
            
                            
                    | 
                        
                     | 
                     | 
                     | 
                    
                                                                                                    
                        
                         
                                                                                        
                                                                                     
                     | 
                
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    130
                 | 
                                    
                                                     | 
                
                 | 
                        assert self.chess_board[(2, 3)] is None  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    131
                 | 
                                    
                                                     | 
                
                 | 
                        ends = self.chess_board.end_locations_for_piece_at_location((1, 3))  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    132
                 | 
                                    
                                                     | 
                
                 | 
                        assert ends == [(2, 3), (3, 3)]  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    133
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    134
                 | 
                                    
                                                     | 
                
                 | 
                    def test_pawn_cant_move_forward_twice_if_not_first_move(self):  | 
            
                            
                    | 
                        
                     | 
                     | 
                     | 
                    
                                                                                                    
                        
                         
                                                                                        
                                                                                     
                     | 
                
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    135
                 | 
                                    
                                                     | 
                
                 | 
                        assert self.chess_board[(2, 3)] is None  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    136
                 | 
                                    
                                                     | 
                
                 | 
                        assert self.chess_board[(3, 3)] is None  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    137
                 | 
                                    
                                                     | 
                
                 | 
                        self.chess_board[(1, 3)].move_count = 1  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    138
                 | 
                                    
                                                     | 
                
                 | 
                        ends = self.chess_board.end_locations_for_piece_at_location((1, 3))  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    139
                 | 
                                    
                                                     | 
                
                 | 
                        assert ends == [(2, 3)]  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    140
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    141
                 | 
                                    
                                                     | 
                
                 | 
                    def test_move_white_pawn(self):  | 
            
                            
                    | 
                        
                     | 
                     | 
                     | 
                    
                                                                                                    
                        
                         
                                                                                        
                                                                                     
                     | 
                
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    142
                 | 
                                    
                                                     | 
                
                 | 
                        pass  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    143
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    144
                 | 
                                    
                                                     | 
                
                 | 
                    def test_move_black_pawn(self):  | 
            
                            
                    | 
                        
                     | 
                     | 
                     | 
                    
                                                                                                    
                        
                         
                                                                                        
                                                                                     
                     | 
                
            
                                                                                                            
                                                                
            
                                    
            
            
                | 
                    145
                 | 
                                    
                                                     | 
                
                 | 
                        pass  | 
            
            
                                                        
            
                                    
            
            
                | 
                    146
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                        
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