public void Destroy_WithEntryId_CallsDestroyFeedbackOnRepository() { // arrange var feedback = new FeedbackItem(FeedbackType.Comment) { Id = 123, Author = "Calvin" }; var service = new Mock <ICommentService>(); service.Setup(s => s.Get(123)).Returns(feedback); service.Setup(s => s.Destroy(123)); var controller = new CommentController(service.Object); // act var result = controller.Destroy(123) as JsonResult; // assert service.Verify(c => c.Destroy(123)); var data = new RouteValueDictionary(result.Data); Assert.AreEqual("Comment by Calvin", data["subject"]); Assert.AreEqual("was destroyed (there is no undo)", data["predicate"]); }