public async void AddBookRoute_Test() { // Arrange var newBook = CreateBook(); SetupMockBookRepo(newBook); var bookController = new BookController(_bookRepository.Object, _genreRepository.Object, _mapper); // Act var result = await bookController.AddUpdateBookAsync(newBook); var okResult = result as OkResult; // Assert Assert.True(okResult != null); Assert.Equal(200, okResult.StatusCode); }