def test_equals_2(self): self.assertEqual(encryptor(13, 'Caesar Cipher'), 'Pnrfne Pvcure')
def test_equals_4(self): self.assertEqual(encryptor(27, 'Whoopi Goldberg'), 'Xippqj Hpmecfsh')
def test_equals(self): self.assertEqual(encryptor(13, ''), '')
def test_equals_3(self): self.assertEqual(encryptor(-5, 'Hello World!'), 'Czggj Rjmgy!')