如何在ASP.Net MVC中模拟控制器上的请求？
我在使用ASP.Net MVC框架的C#中有一个控制器。
public class HomeController:Controller{
public ActionResult Index()
{
if (Request.IsAjaxRequest())
{
//do some ajaxy stuff
}
return View("Index");
}
}我得到了一些关于模拟的技巧，并希望用下面的代码和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);然而，我一直收到这个错误：
异常值: System.ArgumentNullException: System.ArgumentNullException不能为空。参数名称: System.Web.Mvc.AjaxRequestExtensions.IsAjaxRequest(HttpRequestBase请求时的请求)
因为控制器上的Request对象没有设置器。我试着通过使用下面答案中的推荐代码来让这个测试正常工作。
这使用了Moq而不是RhinoMocks，在使用Moq时，我使用以下代码进行相同的测试：
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);但会得到以下错误：
Exception System.ArgumentException: System.ArgumentException :在不可重写的成员上的设置无效:x => x.Headers"X-Requested-With“at Moq.Mock.ThrowIfCantOverride(Expression setup，MethodInfo methodInfo)
同样，我似乎不能设置请求头。如何在RhinoMocks或Moq中设置此值？
回答 10
Stack Overflow用户
发布于 2009-06-09 14:05:57
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);更新：
模拟Request.Headers["X-Requested-With"]或Request["X-Requested-With"]而不是Request.IsAjaxRequest()。
Stack Overflow用户
发布于 2012-06-29 07:29:01
对于任何使用NSubstitute的人，我可以修改上面的答案，并这样做……(其中Details是控制器上的Action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);Stack Overflow用户
发布于 2010-07-15 03:07:36
这是一个使用RhinoMocks的有效解决方案。我基于我在http://thegrayzone.co.uk/blog/2010/03/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);
}https://stackoverflow.com/questions/970198
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