import pytest

from games import *

# Creating the game instances

f52 = Fig52Game()

ttt = TicTacToe()

random.seed("aima-python")

def gen_state(to_move='X', x_positions=[], o_positions=[], h=3, v=3):

"""Given whose turn it is to move, the positions of X's on the board, the

positions of O's on the board, and, (optionally) number of rows, columns

and how many consecutive X's or O's required to win, return the corresponding

game state"""

moves = set([(x, y) for x in range(1, h + 1) for y in range(1, v + 1)]) - set(x_positions) - set(o_positions)

moves = list(moves)

board = {}

for pos in x_positions:

board[pos] = 'X'

for pos in o_positions:

board[pos] = 'O'

return GameState(to_move=to_move, utility=0, board=board, moves=moves)

def test_minmax_decision():

assert minmax_decision('A', f52) == 'a1'

assert minmax_decision('B', f52) == 'b1'

assert minmax_decision('C', f52) == 'c1'

assert minmax_decision('D', f52) == 'd3'

def test_alpha_beta_search():

assert alpha_beta_search('A', f52) == 'a1'

assert alpha_beta_search('B', f52) == 'b1'

assert alpha_beta_search('C', f52) == 'c1'

assert alpha_beta_search('D', f52) == 'd3'

state = gen_state(to_move='X', x_positions=[(1, 1), (3, 3)],

o_positions=[(1, 2), (3, 2)])

assert alpha_beta_search(state, ttt) == (2, 2)

state = gen_state(to_move='O', x_positions=[(1, 1), (3, 1), (3, 3)],

o_positions=[(1, 2), (3, 2)])

assert alpha_beta_search(state, ttt) == (2, 2)

state = gen_state(to_move='O', x_positions=[(1, 1)],

o_positions=[])

assert alpha_beta_search(state, ttt) == (2, 2)

state = gen_state(to_move='X', x_positions=[(1, 1), (3, 1)],

o_positions=[(2, 2), (3, 1)])

assert alpha_beta_search(state, ttt) == (1, 3)

def test_random_tests():

assert Fig52Game().play_game(alpha_beta_player, alpha_beta_player) == 3

# The player 'X' (one who plays first) in TicTacToe never loses:

assert ttt.play_game(alpha_beta_player, alpha_beta_player) >= 0

# The player 'X' (one who plays first) in TicTacToe never loses:

assert ttt.play_game(alpha_beta_player, random_player) >= 0

if __name__ == "__main__":

pytest.main()