def test_encrypt_decrypt(self):
text = 'abcd123'
encrypt = Utility.encrypt(text)
self.assertTrue(isinstance(encrypt, str))
decrypt = Utility.decrypt(encrypt)
self.assertTrue(isinstance(decrypt, str))
self.assertEqual(decrypt, text)
def test_encrypt_decrypt_empty(self):
self.assertEqual(Utility.encrypt(''), '')
self.assertEqual(Utility.decrypt(''), '')
def test_encrypt_decrypt_space(self):
self.assertEqual(Utility.encrypt(' \t '), '')
self.assertEqual(Utility.decrypt(' \t \t'), '')
def test_encrypt_decrypt_none(self):
self.assertEqual(Utility.encrypt(None), '')
self.assertEqual(Utility.decrypt(None), '')