public void DeleteAutorServiceTest()
        {
            //Arrange
            Autor autor = null;

            //Fake do repositório
            var repositoryFake = new Mock<IAutorRepository>();

            repositoryFake.Setup(r => r.Delete(1)).Returns(autor);

            IAutorService service = new AutorService(repositoryFake.Object);

            //Action
            var autorFake = service.Remove(1);

            //Assert
            repositoryFake.Verify(r => r.Delete(1));

            Assert.IsNull(autorFake);
        }