public void FindByPriceOkResultTest() { var preco = 10.0m; var response = _controller.FindByPrice(preco).Result as OkObjectResult; Assert.IsNotNull(response); Assert.AreEqual(200, response.StatusCode); Assert.IsInstanceOfType(response.Value, typeof(IQueryable <BookDto>)); Assert.AreEqual("978-8573023510", ((IQueryable <BookDto>)response.Value).FirstOrDefault().Isbn); }