def test_bogus_string(self):
     self.assertEqual(rps.is_better_than("PAPER", "rock"), None)
     self.assertEqual(rps.is_better_than("scissors", "giraffe"), None)
     self.assertEqual(rps.is_better_than("", ""), None)
 def test_tie(self):
     self.assertEqual(rps.is_better_than("paper", "paper"), None)
     self.assertEqual(rps.is_better_than("scissors", "scissors"), None)
     self.assertEqual(rps.is_better_than("rock", "rock"), None)
 def test_player1_win(self):
     self.assertEqual(rps.is_better_than("rock", "paper"), False)
     self.assertEqual(rps.is_better_than("scissors", "rock"), False)
     self.assertEqual(rps.is_better_than("paper", "scissors"), False)