def test_chess_player_3x3_solutions():
"""Should give four solutions when giving 2 Kings and 1 Rook for 3x3"""
chess_player = ChessPlayer(3, 3, {'K': 2, 'Q': 0, 'B': 0, 'R': 1, 'N': 0})
chess_player.run()
chess_player.draw_boards()
expected_solutions = [
('* * * * *\n'
'* K - - *\n'
'* - - R *\n'
'* K - - *\n'
'* * * * *\n'),
('* * * * *\n'
'* K - K *\n'
'* - - - *\n'
'* - R - *\n'
'* * * * *\n'),
('* * * * *\n'
'* - R - *\n'
'* - - - *\n'
'* K - K *\n'
'* * * * *\n'),
('* * * * *\n'
'* - - K *\n'
'* R - - *\n'
'* - - K *\n'
'* * * * *\n')]
assert len(chess_player.solutions) == len(expected_solutions)
for expected_solution in expected_solutions:
assert expected_solution in chess_player.solutions
def play():
"""
Asks interactively for user chess parameters and calculates all possible
chess boards where none of the placed pieces can take any of the others
"""
width = click.prompt("Please enter board width",
type=custom_types.BoardDimension())
height = click.prompt("Please enter board height",
type=custom_types.BoardDimension())
pieces = {}
pieces['K'] = click.prompt("Please enter number of Kings",
type=custom_types.PieceNumber())
pieces['Q'] = click.prompt("Please enter number of Queens",
type=custom_types.PieceNumber())
pieces['B'] = click.prompt("Please enter number of Bishops",
type=custom_types.PieceNumber())
pieces['R'] = click.prompt("Please enter number of Rooks",
type=custom_types.PieceNumber())
pieces['N'] = click.prompt("Please enter number of Knights",
type=custom_types.PieceNumber())
chess_player = ChessPlayer(height, width, pieces)
chess_player.run()
click.echo(chess_player.draw_boards())
def test_chess_player_4x4_solutions():
"""Should give eight solutions when giving 2 Rooks and 4 Knights for 4x4"""
chess_player = ChessPlayer(4, 4, {'K': 0, 'Q': 0, 'B': 0, 'R': 2, 'N': 4})
chess_player.run()
chess_player.draw_boards()
expected_solutions = [
('* * * * * *\n'
'* R - - - *\n'
'* - N - N *\n'
'* - - R - *\n'
'* - N - N *\n'
'* * * * * *\n'),
('* * * * * *\n'
'* N - N - *\n'
'* - R - - *\n'
'* N - N - *\n'
'* - - - R *\n'
'* * * * * *\n'),
('* * * * * *\n'
'* - - - R *\n'
'* N - N - *\n'
'* - R - - *\n'
'* N - N - *\n'
'* * * * * *\n'),
('* * * * * *\n'
'* - R - - *\n'
'* N - N - *\n'
'* - - - R *\n'
'* N - N - *\n'
'* * * * * *\n'),
('* * * * * *\n'
'* - N - N *\n'
'* - - R - *\n'
'* - N - N *\n'
'* R - - - *\n'
'* * * * * *\n'),
('* * * * * *\n'
'* N - N - *\n'
'* - - - R *\n'
'* N - N - *\n'
'* - R - - *\n'
'* * * * * *\n'),
('* * * * * *\n'
'* - N - N *\n'
'* R - - - *\n'
'* - N - N *\n'
'* - - R - *\n'
'* * * * * *\n'),
('* * * * * *\n'
'* - - R - *\n'
'* - N - N *\n'
'* R - - - *\n'
'* - N - N *\n'
'* * * * * *\n')]
assert len(chess_player.solutions) == len(expected_solutions)
for expected_solution in expected_solutions:
assert expected_solution in chess_player.solutions
def test_chess_player_1x3_solutions():
"""Should give 1 solution when giving 2 Kings and 1x3"""
chess_player = ChessPlayer(1, 3, {'K': 2, 'Q': 0, 'B': 0, 'R': 0, 'N': 0})
chess_player.run()
chess_player.draw_boards()
expected_solutions = [
('* * * * *\n'
'* K - K *\n'
'* * * * *\n')]
assert chess_player.solutions == expected_solutions
def test_chess_player_6_queens():
"""Should solve the 6 queens problem with a 6x6 board"""
chess_player = ChessPlayer(6, 6, {'K': 0, 'Q': 6, 'B': 0, 'R': 0, 'N': 0})
chess_player.run()
chess_player.draw_boards()
expected_solutions = [
('* * * * * * * *\n'
'* - Q - - - - *\n'
'* - - - Q - - *\n'
'* - - - - - Q *\n'
'* Q - - - - - *\n'
'* - - Q - - - *\n'
'* - - - - Q - *\n'
'* * * * * * * *\n'),
('* * * * * * * *\n'
'* - - Q - - - *\n'
'* - - - - - Q *\n'
'* - Q - - - - *\n'
'* - - - - Q - *\n'
'* Q - - - - - *\n'
'* - - - Q - - *\n'
'* * * * * * * *\n'),
('* * * * * * * *\n'
'* - - - Q - - *\n'
'* Q - - - - - *\n'
'* - - - - Q - *\n'
'* - Q - - - - *\n'
'* - - - - - Q *\n'
'* - - Q - - - *\n'
'* * * * * * * *\n'),
('* * * * * * * *\n'
'* - - - - Q - *\n'
'* - - Q - - - *\n'
'* Q - - - - - *\n'
'* - - - - - Q *\n'
'* - - - Q - - *\n'
'* - Q - - - - *\n'
'* * * * * * * *\n')]
assert len(chess_player.solutions) == len(expected_solutions)
for expected_solution in expected_solutions:
assert expected_solution in chess_player.solutions
def test_draw_boards():
"""Should pretty print the board with the expected format"""
chess_player = ChessPlayer(2, 2, {'K': 0, 'Q': 0, 'B': 0, 'R': 2, 'N': 0})
chess_player.run()
chess_player.elapsed_time = 0.000379
expected_output = (
'\nSolutions:\n\n'
'* * * *\n'
'* R - *\n'
'* - R *\n'
'* * * *\n\n'
'* * * *\n'
'* - R *\n'
'* R - *\n'
'* * * *\n\n'
'2 solutions found in 0.000379 seconds\n'
)
assert chess_player.draw_boards() == expected_output