public void should_return_one_author()
        {
            //arrange


            Author _existingAuthors = new Author()
            {
                Idauth      = 1,
                FirstName   = "Justin1",
                LastName    = "test1",
                PhoneNumber = "202020"
            };



            var authors = new Mock <IAuthorRepository>();

            authors.Setup(c => c.GetAuthorById(1)).ReturnsAsync(_existingAuthors);

            //act
            AuthorController home = new AuthorController(authors.Object);
            var result            = home.GetAuthorById(1);

            Console.WriteLine("Justin1" + result.FirstName);

            //assert
            Assert.AreEqual("Justin1", result.FirstName);
        }