def check_done(self):
# Easy
puzzle = '280070309600104007745080006064830100102009800000201930006050701508090020070402050'
solution = '281576349693124587745983216964835172132749865857261934426358791518697423379412658'
puzzle, solution = str2grid(puzzle), str2grid(solution)
s = Sudoku(puzzle)
self.assertFalse(s.check_done())
s = Sudoku(solution)
self.assertTrue(s.check_done())
# Medium
puzzle = '100020400035040900704000001800000000091032080000100097070900600000000000000450000'
solution = '189327465235641978764895321827569143491732586653184297372918654546273819918456732'
puzzle, solution = str2grid(puzzle), str2grid(solution)
s = Sudoku(puzzle)
self.assertFalse(s.check_done())
s = Sudoku(solution)
self.assertTrue(s.check_done())
