如何使用微软正版正货嘲笑User.Identity.Name [英] How can use Microsoft Fakes to mock User.Identity.Name

问题描述

我如何使用微软正版正货嘲笑User.Identity.Name时，单元测试MVC 4应用程序使用Visual Studio 2012。
我在写单元测试项目创建的操作方法。

How can I use Microsoft Fakes to mock User.Identity.Name when unit testing MVC 4 application with Visual Studio 2012. I'm writing unit test for item create action method.

[HttpPost]

    public ActionResult Create([Bind(Include = "Name")]Category category)
    {

        if (categoryService.IsNameExists(category.Name))
        {
            ModelState.AddModelError("Name", "Category name already exists!");
            return View(category);
        }
        try
        {
            if (ModelState.IsValid)
            {
                UserProfile p = new UserProfile();  
                p.UserName = User.Identity.Name;

                category.CreatedBy = p;
                category.CreatedDate = DateTime.Now;
                category.Active = true;
                category.DeletedBy =  null;

                category = categoryService.SaveCategory(category);
                return RedirectToAction("Index");
            }
            return View(category);
        }
        catch (DataException dex)
        {

        }
    }


[TestMethod]
    public void Create()
    {
        Category createdCategory = new Category();
        ICategoryService service = new StubICategoryService()
        {
            SaveCategoryCategory = (category) => { return category; }
        };
        CategoryController controller = new CategoryController(service);

        using (ShimsContext.Create())
        {
            System.Fakes.ShimDateTime.NowGet = () =>
            { return new DateTime(2000, 1, 1); };

            ViewResult result = controller.Create(createdCategory) as ViewResult;

            Assert.IsNotNull(result);
        }
    }

这是我写的操作方法和测试方法。如果有更好的办法比MS正版正货要做到这一点其他的，请告诉我，（不是另一个嘲弄框架）。

These are the action method and test method I have written. If there is better way to do this other than MS Fakes please tell me, (not another mocking framework).

推荐答案

假设你已经添加了正版正货参考的System.Web 和系统，你可以做这样的事情里面你的使用（ShimsContext.Create（））块：

Assuming you've added Fakes references for System.Web and System, you can do something like this inside your using (ShimsContext.Create()) block:

var context = new System.Web.Fakes.ShimHttpContext();
var user = new StubIPrincipal
{
    IdentityGet = () =>
    {
        var identity = new StubIIdentity {NameGet = () => "foo"};
        return identity;
    }
};

context.UserGet = () => principal;
System.Web.Fakes.ShimHttpContext.CurrentGet = () => { return context; };

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