public void Create_SimpleValues_AddedToPhoneBook()
        {
            FakePhoneBookRepository repository = new FakePhoneBookRepository();
            PhoneBookService service = new PhoneBookService(repository) { GetUserId = () => 1 };

            service.Create(new CreatePhoneBookRequest { FirstName = "Adam", LastName = "Kowalski", Number = "123456", PhoneTypeId = 1});

            Assert.AreEqual(1, repository.phoneBook.Count());
            Assert.AreEqual("Adam", repository.phoneBook.First().FirstName);
            Assert.AreEqual("Kowalski", repository.phoneBook.First().LastName);
            Assert.AreEqual("123456", repository.phoneBook.First().Number);
            Assert.AreEqual(1, repository.phoneBook.First().PhoneTypeId);
            Assert.AreEqual(service.GetUserId(), repository.phoneBook.First().UserId);
        }