Question

I am Using Moq package for testing a Controller. HomeController.cs

public class HomeController : Controller
{  readonly IPermitRepository _repository;
    public HomeController(IPermitRepository rep)
    {            this._repository = rep;        }

    public ViewResult Index()
    {
        ViewBag.Message = "Hello World";
        PermitModel model = _repository.GetPermitDetails();
        return View(model);
    }
}

家庭主控测试中 ccs

 [TestClass]
 Public class HomeControllerTest
{
    [TestMethod]
    public void Index()
    {       
        var messagingService = new Mock<IPermitRepository>();
        var controller = new HomeController(messagingService.Object);

        var result = controller.Index() as ViewResult;
       Assert.IsInstanceOfType(result.Model, typeof(PermitModel));
    }
}

But its giving error. Assert.IsInstanceOfType failed. Expected type:. Actual type:<(null)>.

Can some one provide solution and also some inf about Moq package in MVC3. Thanks in advance

Answer 1

Moq 返回每个非无效方法调用时默认返回 null 。

所以当您在控制器中调用 reposititory. GetPermitDetails (); 它返回 null ,这就是测试失败的原因。

您需要调用 < code> setup 的方法返回某种东西 :

var messagingService = new Mock<IPermitRepository>();
messagingService.Setup(m => m.GetPermitDetails()).Returns(new PermitModel());
var controller = new HomeController(messagingService.Object);

您可以在 < a href=> http://code.google.com/p/moq/wiki/QuickStart" rel = "nofol" 中找到更多关于如何定制模拟行为的信息。 > Moq 快速启动

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