def test_equals_7(self): self.assertEqual(odd_one_out('Mama'), ['M', 'm'])
def test_equals(self): self.assertEqual(odd_one_out('Hello World'), ['H', 'e', ' ', 'W', 'r', 'l', 'd'])
def test_equals_6(self): self.assertEqual(odd_one_out('Mamma'), ['M'])
def test_equals_5(self): self.assertEqual(odd_one_out('racecar'), ['e'])
def test_equals_4(self): self.assertEqual(odd_one_out('wwoooowweeee'), [])
def test_equals_3(self): self.assertEqual(odd_one_out('woowee'), [])
def test_equals_2(self): self.assertEqual(odd_one_out('Codewars'), ['C', 'o', 'd', 'e', 'w', 'a', 'r', 's'])