def test_get_answer_out_of_bounds(self):
     from sudoku_board import SudokuBoard
     board = SudokuBoard()
     with self.assertRaises(IndexError):
         board.get_answer(0, 0)
     with self.assertRaises(IndexError):
         board.get_answer(10, 10)
 def test_get_answer(self):
     from sudoku_board import SudokuBoard
     board = SudokuBoard()
     board.add_answer(1, 2, 4)
     self.assertEqual(board.get_answer(1, 2), 4)
     with self.assertRaises(IndexError):
         board.get_answer(0, 0)