def test_equal_3(self): self.assertEqual(encrypt('This is a test!', -1), 'This is a test!')
def test_equal_18(self): self.assertEqual(encrypt("This is a another test!", 14), " eTarh iatsne osittsh!")
def test_equal_14(self): self.assertEqual(encrypt("This is a another test!", 10), "nTohtihse ri st eas ta!")
def test_equal_16(self): self.assertEqual(encrypt("This is a another test!", 12), "hsi nte etTi saaohrts!")
def test_equal_11(self): self.assertEqual(encrypt("This is a another test!", 7), "oieitatnhh saTtsrse !")
def test_equal_13(self): self.assertEqual(encrypt("This is a another test!", 9), "in Tsoth teiahss et ar!")
def test_equal_15(self): self.assertEqual(encrypt("This is a another test!", 11), "This is a another test!")
def test_equal_12(self): self.assertEqual(encrypt("This is a another test!", 8), "iianh sTss oetth atre!")
def test_equal_10(self): self.assertEqual(encrypt("This is a another test!", 6), " o iseaiTttastrnsheh !")
def test_equal_9(self): self.assertEqual(encrypt("This is a another test!", 5), "a sot rinssehaeihT t t!")
def test_is_none_1(self): self.assertIsNone(encrypt(None, 0))
def test_equal_17(self): self.assertEqual(encrypt("This is a another test!", 13), "s neeT aorshi t tisaht!")
def test_equal_19(self): self.assertEqual(encrypt("This is a another test!", 15), "eah aseoith Tr itn sts!")
def test_equal_1(self): self.assertEqual(encrypt('', 0), '')