def test_block_two_in_diagonals(self):
X, O, e = self.X_O_e()
self.board.update_from_tuple(((O, e, X),
(e, X, e),
(e, e, e)))
score = computer(self.board, O, O)
self.assertTrue(score.move == Move(2, 0))
self.board.update_from_tuple(((e, e, e),
(e, X, e),
(O, e, X)))
score = computer(self.board, O, O)
self.assertTrue(score.move == Move(0, 0))
self.board.update_from_tuple(((e, e, e),
(e, X, e),
(X, e, O)))
score = computer(self.board, O, O)
self.assertTrue(score.move == Move(0, 2))
self.board.update_from_tuple(((X, e, O),
(e, X, e),
(e, e, e)))
score = computer(self.board, O, O)
self.assertTrue(score.move == Move(2, 2))
def test_take_win_over_block_rows(self):
X, O, e = self.X_O_e()
self.board.update_from_tuple(((X, X, e),
(O, O, e),
(e, e, e)))
self.assertTrue(computer(self.board, X, X).move == Move(0, 2))
self.board.update_from_tuple(((e, e, e),
(O, O, e),
(X, X, e)))
score = computer(self.board, X, X)
self.assertTrue(score.move == Move(2, 2))
def test_take_center(self):
X, O, e = self.X_O_e()
self.board.update_from_tuple(((e, e, e),
(e, e, e),
(e, e, e)))
score = computer(self.board, X, X)
self.assertTrue(score.move == self.board.center)
self.board.update_from_tuple(((X, e, e),
(e, e, e),
(e, e, e)))
score = computer(self.board, O, O)
self.assertTrue(score.move == self.board.center)
def test_block_two_in_col(self):
X, O, e = self.X_O_e()
self.board.update_from_tuple(((X, e, e),
(X, O, e),
(e, e, e)))
score = computer(self.board, O, O)
self.assertTrue(score.move == Move(2, 0))
def test_confirm_opponent_win_score(self):
X, O, e = self.X_O_e()
self.board.update_from_tuple(((X, X, O),
(O, X, e),
(X, O, O)))
score = computer(self.board, O, X)
self.assertTrue(score.value == -500)
def test_confirm_tie_score(self):
X, O, e = self.X_O_e()
self.board.update_from_tuple(((X, X, O),
(O, O, X),
(X, O, e)))
score = computer(self.board, O, O)
self.assertTrue(score.value == 0)
def test_prefer_corners(self):
X, O, e = self.X_O_e()
self.board.update_from_tuple(((e, e, e),
(e, X, e),
(e, e, e)))
score = computer(self.board, O, O)
self.assertTrue(score.move in (Move(2, 0), Move(0, 0), Move(0, 2), Move(2, 2)))
