public async Task GetOrder_ShouldReturnOrderDetails() { // Arrange var context = new TestBookStoreAPIContext(); var order = DemoData.GetDemoOrder(); context.Orders.Add(order); OrderItem orderItem = new OrderItem { Id = Util.Util.GetNewId(), OrderId = order.Id, BookId = "xta", SellingPrice = 499, Quantity = 1, ShippingStatus = 0, CreatedAt = new System.DateTime() }; context.OrderItems.Add(orderItem); // Act var controller = new OrdersController(context); var result = await controller.GetOrder("XyZ") as IHttpActionResult; var contentResult = result as OkNegotiatedContentResult <ApiResponse>; var orderDetails = contentResult.Content.Data as OrderDetailsDTO; // Assert Assert.IsNotNull(result); Assert.IsTrue(!contentResult.Content.Error); Assert.AreEqual("XyZ", orderDetails.Id); Assert.AreEqual(499, orderDetails.TotalAmount); }