asp.net-mvc - 最小起订量异常 : Verifying a method call that takes parameters

Question

我想测试我的 Controller 中 _eventManager 上的“Create”方法是否被调用。当我运行测试时，出现以下异常:

测试方法 Baigent.TheDoNation.Application.Tests.EventControllerTest.Create_Post_IfModelIsValidRedirectToSuccessfullyCreatedViewOccurs 抛出异常:System.ArgumentException:不可覆盖成员上的设置无效:m => m.CreateEvent(It.IsAny(), It.IsAny()).

Controller 的代码是:

    public ActionResult Create(Event eventObject, FormCollection collection)
    {
        if (ModelState.IsValid)
        {
            _eventManager.CreateEvent(eventObject, User.Identity.Name);

            return RedirectToAction("SuccessfullyCreated", new { });
        }

        // Invalid - redisplay form with errors
        return View(GetEventViewModel(eventObject));
    }

_eventManager 字段在构造函数中设置。我的测试是:

        var eventManagerMock = new Mock<EventManager>(new FakeEventsRepository());
        eventManagerMock.Setup(m => m.CreateEvent(It.IsAny<Event>(), It.IsAny<String>())).Verifiable("No call to CreateEvent on the EventManager was made");

        var eventController = new EventController(eventManagerMock.Object);

        var newEvent = new Event {Name = "Test Event", Date = DateTime.Now, Description = "Test description"};

        // Act
        var result = eventController.Create(newEvent, new FormCollection()) as RedirectToRouteResult;

        // Assert
        eventManagerMock.Verify(m => m.CreateEvent(It.IsAny<Event>(), It.IsAny<String>())); 

        Assert.IsNotNull(result, "RedirectToRouteResult should be returned");
        Assert.AreEqual("SuccessfullyCreated", result.RouteValues["action"], "Redirect should be to SuccessfullyCreated view");

请帮忙!

Answer 1

异常告诉您您正试图覆盖一个非虚拟成员，这是不可能的。

Moq(以及 Rhino Mocks 和 NMock)只能覆盖虚拟成员(包括纯接口(interface)成员)。

参见 here for a more detailed explanation .