ASP.NET MVC：使用UrlHelper单元测试控制器

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我的一个控制器的动作，一个是被称为在一个Ajax请求，则返回一个URL到客户端，以便它可以做一个重定向。我使用 Url.RouteUrl（..），并在我的单元测试失败，因为 Controller.Url 参数是不是pre-填写。

One of my controllers actions, one that is being called in an Ajax request, is returning an URL to the client side so it can do a redirection. I'm using Url.RouteUrl(..) and during my unit tests this fails since the Controller.Url parameter is not pre-filled.

我尝试了很多东西，其中包括试图存根 UrlHelper （这失败），手动创建一个 UrlHelper 与 RequestContext的具有存根 HttpContextBase （它未能在 RouteCollection.GetUrlWithApplicationPath 调用）。

I tried a lot of things, among others attempting to stub UrlHelper (which failed), manually creating a UrlHelper with a RequestContext that has a stubbed HttpContextBase (which failed on a RouteCollection.GetUrlWithApplicationPath call).

我已经搜索谷歌，但发现关于这个问题几乎没有。我做使用 Url.RouteUrl 在我的控制器动作令人难以置信的东西愚蠢？是否有更简单的方法？

I have searched Google but found virtually nothing on the subject. Am I doing something incredibly stupid using Url.RouteUrl in my Controller action? Is there an easier way?

为了让事情变得更糟，我希望能在我的单元测试，以测试返回的URL - 其实我只知道它重定向到正确的路线感兴趣，但因为我返回一个网址而不是一个路线，我想控制解决的URL（例如，通过使用存根 RouteCollection ） - 但我会很乐意让我的测试传递给开始的时候。

To make it even worse, I'd like to be able to test the returned URL in my unit test - in fact I'm only interested in knowing it's redirecting to the right route, but since I'm returning an URL instead of a route, I would like to control the URL that is resolved (eg. by using a stubbed RouteCollection) - but I'll be happy to get my test passing to begin with.

推荐答案

下面是我的测试（+的xUnit MOQ）只是类似的情况下（控制器使用Url.RouteUrl）

Here is one of my tests (xUnit + Moq) just for similar case (using Url.RouteUrl in controller)

希望这有助于：

var routes = new RouteCollection(); MvcApplication.RegisterRoutes(routes); var request = new Mock<HttpRequestBase>(MockBehavior.Strict); request.SetupGet(x => x.ApplicationPath).Returns("/"); request.SetupGet(x => x.Url).Returns(new Uri("localhost/a", UriKind.Absolute)); request.SetupGet(x => x.ServerVariables).Returns(new System.Collections.Specialized.NameValueCollection()); var response = new Mock<HttpResponseBase>(MockBehavior.Strict); response.Setup(x => x.ApplyAppPathModifier("/post1")).Returns("localhost/post1"); var context = new Mock<HttpContextBase>(MockBehavior.Strict); context.SetupGet(x => x.Request).Returns(request.Object); context.SetupGet(x => x.Response).Returns(response.Object); var controller = new LinkbackController(dbF.Object); controller.ControllerContext = new ControllerContext(context.Object, new RouteData(), controller); controller.Url = new UrlHelper(new RequestContext(context.Object, new RouteData()), routes);