public void AddAndRemoveContactTypeTest() { ContactsRepository repo = new ContactsRepository(); int i = repo.GetContactTypes().Count; string name = "It's a contact type"; repo.AddContactType(name); Assert.AreEqual(i + 1, repo.GetContactTypes().Count); repo.RemoveContactType(repo.GetContactIDByName(name)); Assert.AreEqual(i, repo.GetContactTypes().Count); }