def test_DoesNotMutateBoard(self):
board = Board(['o', 1, 2, 3, 'x', 5, 6, 7, 8])
board.next_boards()
new_board = Board(['o', 1, 2, 3, 'x', 5, 6, 7, 8])
self.assertEqual(board, new_board)
def test_OnFullBoardReturnsNoBoards(self):
board = Board(['o', 'x', 'x', 'x', 'x', 'o', 'o', 'o', 'x'])
result = board.next_boards()
self.assertEqual(result, [])
def test_OnBoardWithTwoOptionsReturnsListOfBothResultingBoards(self):
board = Board([0, 1, 'x', 'o', 'x', 'o', 'x', 'o', 'x'])
result = board.next_boards()
expected1 = Board(['o', 1, 'x', 'o', 'x', 'o', 'x', 'o', 'x'])
expected2 = Board([0, 'o', 'x', 'o', 'x', 'o', 'x', 'o', 'x'])
self.assertEqual(sorted([expected1, expected2]), sorted(result))
def test_OnEmptyBoardReturns9Boards(self):
board = Board()
result = board.next_boards()
self.assertEqual(len(result), 9)
def test_DoesNotMutateBoard(self):
board = Board(['o', 1, 2, 3, 'x', 5, 6, 7, 8])
board.next_boards()
new_board = Board(['o', 1, 2, 3, 'x', 5, 6, 7, 8])
self.assertEqual(board, new_board)
def test_OnBoardWithTwoOptionsReturnsListOfBothResultingBoards(self):
board = Board([0, 1, 'x', 'o', 'x', 'o', 'x', 'o', 'x'])
result = board.next_boards()
expected1 = Board(['o', 1, 'x', 'o', 'x', 'o', 'x', 'o', 'x'])
expected2 = Board([0, 'o', 'x', 'o', 'x', 'o', 'x', 'o', 'x'])
self.assertEqual(sorted([expected1, expected2]), sorted(result))
def test_OnFullBoardReturnsNoBoards(self):
board = Board(['o', 'x', 'x', 'x', 'x', 'o', 'o', 'o', 'x'])
result = board.next_boards()
self.assertEqual(result, [])
def test_OnEmptyBoardReturns9Boards(self):
board = Board()
result = board.next_boards()
self.assertEqual(len(result), 9)