如何模拟在ASP.Net MVC控制器上的要求？ [英] How to mock the Request on Controller in ASP.Net MVC?

问题描述

我必须使用ASP.Net MVC框架在C＃中的控制器

I have a controller in C# using the ASP.Net MVC framework

public class HomeController:Controller{
  public ActionResult Index()
    {
      if (Request.IsAjaxRequest())
        { 
          //do some ajaxy stuff
        }
      return View("Index");
    }
}

我得到了嘲笑一些技巧和希望用以下和RhinoMocks的

I got some tips on mocking and was hoping to test the code with the following and RhinoMocks

var mocks = new MockRepository();
var mockedhttpContext = mocks.DynamicMock<HttpContextBase>();
var mockedHttpRequest = mocks.DynamicMock<HttpRequestBase>();
SetupResult.For(mockedhttpContext.Request).Return(mockedHttpRequest);

var controller = new HomeController();
controller.ControllerContext = new ControllerContext(mockedhttpContext, new RouteData(), controller);
var result = controller.Index() as ViewResult;
Assert.AreEqual("About", result.ViewName);

不过，我不断收到此错误：

However I keep getting this error:

异常
    System.ArgumentNullException：
  System.ArgumentNullException：值
  不能为空。参数名：
  在要求
  System.Web.Mvc.AjaxRequestExtensions.IsAjaxRequest（HTT prequestBase
  请求）

Exception System.ArgumentNullException: System.ArgumentNullException : Value cannot be null. Parameter name: request at System.Web.Mvc.AjaxRequestExtensions.IsAjaxRequest(HttpRequestBase request)

由于请求对象没有制定者。我试图通过使用建议code从下面的答案让此测试正常工作。

Since the Request object on the controller has no setter. I tried to get this test working properly by using recommended code from an answer below.

这起订量使用，而不是RhinoMocks的，并使用起订量我使用了相同的测试如下：

This used Moq instead of RhinoMocks, and in using Moq I use the following for the same test:

var request = new Mock<HttpRequestBase>();
// Not working - IsAjaxRequest() is static extension method and cannot be mocked
// request.Setup(x => x.IsAjaxRequest()).Returns(true /* or false */);
// use this
request.SetupGet(x => x.Headers["X-Requested-With"]).Returns("XMLHttpRequest");

var context = new Mock<HttpContextBase>();
context.SetupGet(x => x.Request).Returns(request.Object);
var controller = new HomeController(Repository, LoginInfoProvider);
controller.ControllerContext = new ControllerContext(context.Object, new RouteData(), controller);
var result = controller.Index() as ViewResult;
Assert.AreEqual("About", result.ViewName);

但出现以下错误：

but get the following error:

异常System.ArgumentException：
  System.ArgumentException：无效
  设置一个非重写的成员：X
  => x.Headers [X-要求，以]在Moq.Mock.ThrowIfCantOverride（前pression
  设置，MethodInfo的MethodInfo的）

Exception System.ArgumentException: System.ArgumentException : Invalid setup on a non-overridable member: x => x.Headers["X-Requested-With"] at Moq.Mock.ThrowIfCantOverride(Expression setup, MethodInfo methodInfo)

再次好像我不能设置请求头。
如何设置这个值，RhinoMocks的起订量还是？

Again, it seems like I cannot set the request header. How do I set this value, in RhinoMocks or Moq?

推荐答案

使用起订量：

var request = new Mock<HttpRequestBase>();
// Not working - IsAjaxRequest() is static extension method and cannot be mocked
// request.Setup(x => x.IsAjaxRequest()).Returns(true /* or false */);
// use this
request.SetupGet(x => x.Headers).Returns(
    new System.Net.WebHeaderCollection {
        {"X-Requested-With", "XMLHttpRequest"}
    });

var context = new Mock<HttpContextBase>();
context.SetupGet(x => x.Request).Returns(request.Object);

var controller = new YourController();
controller.ControllerContext = new ControllerContext(context.Object, new RouteData(), controller);

更新：

模拟 Request.Headers [X-要求，随着] 或请求[X-要求，随着] 而不是 Request.IsAjaxRequest（）。

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