如何在ASP中模拟对控制器的请求。净MVC吗?

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

我在c#中有一个使用ASP的控制器。净MVC框架

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

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

我得到了一些关于mock的提示，希望用以下代码和RhinoMocks测试代码

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);

However I keep getting this error:

然而，我不断地得到这个错误:

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

系统异常。ArgumentNullException:系统。ArgumentNullException:值不能为空。参数名称:对System.Web.Mvc.AjaxRequestExtensions请求。IsAjaxRequest(HttpRequestBase请求)

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.

因为控制器上的请求对象没有setter。我试图通过使用下面的答案的推荐代码来让这个测试正常工作。

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

这个测试使用的是Moq而不是RhinoMocks，在使用Moq时，我使用了下面的测试:

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);

but get the following error:

但有以下错误:

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)

系统异常。ArgumentException:系统。ArgumentException:不可重写成员的无效设置:x => x。在Moq.Mock标题(“X-Requested-With”)。ThrowIfCantOverride(表达式设置,MethodInfo MethodInfo)

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

同样，似乎我无法设置请求头。如何在犀牛角或Moq中设置这个值?

7 个解决方案

#1

191

Using Moq:

使用Moq:

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);

UPDATED:

更新:

Mock Request.Headers["X-Requested-With"] or Request["X-Requested-With"] instead of Request.IsAjaxRequest().

模拟的要求。header [" x - requ斯特劳- with "]或Request[" x - requ斯特劳- with "]代替Request. isajaxrequest()。

#2

Here is a working solution using RhinoMocks. I've based it on a Moq solution I found at http://thegrayzone.co.uk/blog/2010/03/mocking-request-isajaxrequest/

这是一个使用犀牛角的有效解决方案。我基于我在http://thegrayzone.co.uk/blog/03/mocking-request-isajaxrequest/找到的Moq解决方案

public static void MakeAjaxRequest(this Controller controller)
{
        MockRepository mocks = new MockRepository();

        // Create mocks
        var mockedhttpContext = mocks.DynamicMock<HttpContextBase>();
        var mockedHttpRequest = mocks.DynamicMock<HttpRequestBase>();

        // Set headers to pretend it's an Ajax request
        SetupResult.For(mockedHttpRequest.Headers)
            .Return(new WebHeaderCollection() {
                {"X-Requested-With", "XMLHttpRequest"}
            });

        // Tell the mocked context to return the mocked request
        SetupResult.For(mockedhttpContext.Request).Return(mockedHttpRequest);

        mocks.ReplayAll();

        // Set controllerContext
        controller.ControllerContext = new ControllerContext(mockedhttpContext, new RouteData(), controller);
}

#3

For anyone using NSubstitute I was able to modify the above answers and do something like this... (where Details is the Action method name on the controller)

对于任何使用NSubstitute的人，我可以修改上面的答案，然后做如下的事情……(细节是控制器上的操作方法名称)

 var fakeRequest = Substitute.For<HttpRequestBase>();
        var fakeContext = Substitute.For<HttpContextBase>();
        fakeRequest.Headers.Returns(new WebHeaderCollection { {"X-Requested-With", "XMLHttpRequest"}});
        fakeContext.Request.Returns(fakeRequest);
        controller.ControllerContext = new ControllerContext(fakeContext, new RouteData(), controller);
        var model = new EntityTypeMaintenanceModel();

        var result = controller.Details(model) as PartialViewResult;

        Assert.IsNotNull(result);
        Assert.AreEqual("EntityType", result.ViewName);

#4

Is AjaxRequest is an extension method. So you can do it the following way using Rhino:

是一个扩展方法。所以你可以用Rhino软件进行如下操作:

    protected HttpContextBase BuildHttpContextStub(bool isAjaxRequest)
    {
        var httpRequestBase = MockRepository.GenerateStub<HttpRequestBase>();   
        if (isAjaxRequest)
        {
            httpRequestBase.Stub(r => r["X-Requested-With"]).Return("XMLHttpRequest");
        }

        var httpContextBase = MockRepository.GenerateStub<HttpContextBase>();
        httpContextBase.Stub(c => c.Request).Return(httpRequestBase);

        return httpContextBase;
    }

    // Build controller
    ....
    controller.ControllerContext = new ControllerContext(BuildHttpContextStub(true), new RouteData(), controller);

#5

Looks like you are looking for this,

看起来你在找这个，

 var requestMock = new Mock<HttpRequestBase>();
 requestMock.SetupGet(rq => rq["Age"]).Returns("2001");

Usage in Controller :

使用控制器:

 public ActionResult Index()
 {
        var age = Request["Age"]; //This will return 2001
 }

#6

You need to mock HttpContextBase and put it into your ControllerContext property, like that:

您需要模拟HttpContextBase并将其放入ControllerContext属性，如下所示:

controller.ControllerContext = 
new ControllerContext(mockedHttpContext, new RouteData(), controller);

#7

To make IsAjaxRequest() to return false during Unit test you need to setup Request Headers as well as request collection value both in your test method as given below:

要使IsAjaxRequest()在单元测试期间返回false，您需要在测试方法中设置请求头和请求集合值，如下所示:

_request.SetupGet(x => x.Headers).Returns(new System.Net.WebHeaderCollection { { "X-Requested-With", "NotAjaxRequest" } });
_request.SetupGet(x=>x["X-Requested-With"]).Returns("NotAjaxRequest");

The reason for setting up both is hidden in implementation of IsAjaxRequest() which is given below:

在IsAjaxRequest()的实现中隐藏了设置两者的原因，如下所示:

public static bool IsAjaxRequest(this HttpRequestBase request)<br/>
{ 
    if (request == null)
    {
        throw new ArgumentNullException("request");
    }
    return ((request["X-Requested-With"] == "XMLHttpRequest") || ((request.Headers != null) && (request.Headers["X-Requested-With"] == "XMLHttpRequest")));
}

It uses both request Collection and header this is why we need to create setup for both Header and Request Collection.

它同时使用请求集合和header这就是为什么我们需要为header和request集合创建setup。

this will make the request to return false when it is not a ajax request. to make it return true you can do the following:

这将使请求在非ajax请求时返回false。要使它返回为真，您可以做以下工作:

_httpContext.SetupGet(x => x.Request["X-Requested-With"]).Returns("XMLHttpRequest");

#1

191