def test_board(self):
# tests all of Board's methods
board = Board()
lst = []
possible_choices = ['x', 'o']
self.assertFalse(bool(board), msg="The board should be empty")
for x in range(9):
num = random.randint(0, len(possible_choices)-1)
board[x] = possible_choices[num]
lst.append(possible_choices[num])
for place, testitem in zip(board, lst):
self.assertEqual(place, testitem, msg="Improper iteration or improper __getitem__")
self.assertEqual(board.as_list(), lst, msg="Board not properly converting to list")
self.assertTrue(bool(board), msg="The board has a value in it and should be True")
board.clear()
self.assertFalse(board.check_win(), msg="When the board is empty, a win should be impossible")
idx = random.randint(0, len(possible_choices)-1)
board[6] = board[7] = board[8] = possible_choices[idx]
self.assertEqual(board.check_win(), possible_choices[idx], msg="This should be a win")
board.clear()
board[0] = board[3] = board[6] = possible_choices[idx]
self.assertEqual(board.check_win(), possible_choices[idx], msg="This should be a win")
board.clear()
board[1] = board[4] = possible_choices[idx]
self.assertFalse(board.check_win(), msg="This should not be a win")
board.clear()
board[0] = board[4] = board[8] = possible_choices[idx]
self.assertEqual(board.check_win(), possible_choices[idx], msg="This should be a win")
board.clear()
board[2] = board[4] = board[6] = possible_choices[idx]
self.assertEqual(board.check_win(), possible_choices[idx], msg="This should be a win")
board.clear()
self.assertEqual(board.get_all_openings(), [(x,y) for x in range(3) for y in range(3)], msg="This board is entirely clear = all spaces should be open.")
board[2] = board[5] = board[8] = possible_choices[idx]
self.assertEqual(board.get_all_openings(), [(x,y) for x in range(3) for y in range(2)], msg="The third column should be occupied")
board.clear()
board[1] = 'x'
with self.assertRaises(ValueError):
board[1] = 'o'
