class PhonebookEditTestCase(unittest.TestCase): def setUp(self): self.phonebook = Phonebook() self.contact = self.phonebook.add_contact("Redlion", "0715846586") def test_edit_contact_number(self): resp = self.phonebook.edit_contact("Redlion", "0754681222") self.assertNotEqual(resp, "0715846586") def test_edit_contact_name(self): resp = self.phonebook.edit_contact("Redlion", "Isaac") self.assertEqual(resp, None)