def test_winner(self):
board = Board()
self.assertIsNone(board.winner)
board = Board()
board.state = ['x'] * 9
self.assertEqual(board.winner, 'x')
def test_available_positions(self):
initial_state = [i for i in range(9)]
board = Board()
self.assertEqual(board.available_positions(), initial_state)
new_state = initial_state[:]
new_state[0] = 'x'
board.state = new_state
self.assertEqual(board.available_positions(), initial_state[1:])
def test_is_over(self):
board = Board()
patched_available_positions = MagicMock(return_value=[1, 2])
board.available_positions = patched_available_positions
self.assertFalse(board.is_over())
init_state = [i for i in range(9)]
state = ['x', 'x', 'x'] + [''] * 6
board.state = state
self.assertTrue(board.is_over())
state = [''] * 3 + ['x', 'x', 'x'] + [''] * 3
board.state = state
self.assertTrue(board.is_over())
state = [''] * 6 + ['x', 'x', 'x']
board.state = state
self.assertTrue(board.is_over())
state = init_state[:]
state[0] = state[3] = state[6] = 'x'
board.state = state
self.assertTrue(board.is_over())
state = init_state[:]
state[1] = state[4] = state[7] = 'x'
board.state = state
self.assertTrue(board.is_over())
state = init_state[:]
state[2] = state[5] = state[8] = 'x'
board.state = state
self.assertTrue(board.is_over())
state = init_state[:]
state[0] = state[4] = state[8] = 'x'
board.state = state
self.assertTrue(board.is_over())
state = init_state[:]
state[0] = state[4] = state[8] = 'x'
board.state = state
self.assertTrue(board.is_over())
board = Board()
patched_available_positions = MagicMock(return_value=[])
board.available_positions = patched_available_positions
self.assertTrue(board.is_over())
