MOQ-模拟MVC控制器'；s响应.Cookies.Clear()

本文关键字：Cookies 响应 Clear MVC 模拟 控制器 MOQ- | 更新日期: 2023-09-27 18:26:39

我是MOQ的新手，但我将它与NUnit一起用于单元测试。

我的控制器的所有部分都被嘲笑了，除了下面一行抛出"Object not set to a instance of a Object"错误消息。

Response.Cookies.Clear();

我有下面的扩展方法来模拟控制器上下文，它适用于我迄今为止遇到的其他一切（非常感谢这个论坛上的好人）。

public static int SetUpForTest(this System.Web.Mvc.Controller ctl, string username, TestingUtility.Roles role)
    {
        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("http://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(Moq.It.IsAny<String>())).Returns((String url) => url);
        // response.SetupGet(x => x.Cookies).Returns(new HttpCookieCollection()); // This also failed to work
        var context = new Mock<HttpContextBase>(MockBehavior.Strict);
        context.SetupGet(x => x.Request).Returns(request.Object);
        context.SetupGet(x => x.Response).Returns(response.Object);
        context.SetupGet(x => x.Response.Cookies).Returns(new HttpCookieCollection()); // still can't call the Clear() method
        //
        // Mock the controller context (using the objects mocked above)
        //
        var moqCtx = new Mock<ControllerContext>(context.Object, new RouteData(), ctl);
        moqCtx.SetupGet(p => p.HttpContext.User.Identity.Name).Returns(username);
        moqCtx.SetupGet(p => p.HttpContext.User.Identity.IsAuthenticated).Returns(true);
        if (!string.IsNullOrEmpty(role.ToString()))
            moqCtx.Setup(p => p.HttpContext.User.IsInRole(role.ToString())).Returns(true);
        //
        // Pass the mocked ControllerContext and create UrlHelper for the controller and return
        //
        ctl.ControllerContext = moqCtx.Object;
        ctl.Url = new UrlHelper(new RequestContext(context.Object, new RouteData()), routes);
        return 1;
    }

正如你在上面看到的，我试图嘲笑cookie集合的"get"，但这无济于事。

此外，不能模拟实际的Clear（）方法，因为它不是一个虚拟方法。

显然，我不想测试cookie是否被清除，我只想在测试中忽略它。

谢谢，

Greg

MOQ-模拟MVC控制器'；s响应.Cookies.Clear()

当我做cookie时，这对我很有用。清除（）

            var request = new Mock<HttpRequestBase>(MockBehavior.Strict);
        request.SetupGet(x => x.ApplicationPath).Returns("/");
        request.SetupGet(x => x.Url).Returns(new Uri("http://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(Moq.It.IsAny<String>())).Returns((String url) => url);
        // response.SetupGet(x => x.Cookies).Returns(new HttpCookieCollection()); // This also failed to work
        var context = new Mock<HttpContextBase>(MockBehavior.Strict);
        context.SetupGet(x => x.Request).Returns(request.Object);
        context.SetupGet(x => x.Response).Returns(response.Object);
        context.SetupGet(x => x.Response.Cookies).Returns(new HttpCookieCollection()); // still can't call the Clear() method
        context.SetupGet(p => p.User.Identity.Name).Returns("blah");
        context.SetupGet(p => p.User.Identity.IsAuthenticated).Returns(true);
        var rc = new RequestContext(context.Object, new RouteData());
        controller.ControllerContext = new ControllerContext(rc, controller);

参考以前的问题及其在不使用ActionContext的情况下的准确解决方案：如何在ASP.NET 5（MVC 6）中使用Response属性对Controller操作进行单元测试？[副本]

模仿HttpResponse和HttpContext是困难的，因为它们只是只读类型。因此，要模拟这些，请在HttpResponse和HttpContext上使用SetupGet，然后将HttpContext引用传递给ControllerContext。

    var headerDict = new HeaderDictionary();
    var httpResponse = new Mock<HttpResponse>();
    var httpContext = new Mock<HttpContext>();
    
    
    httpRespnse.SetupGet(=>c.Headers).Returns(headerDict);
    httpContext.SetupGet(=>c.Response).Returns(httpResponse.Object);
    var controllerContext = new ControllerContext()
   {
       HttpContext = httpContext.Object
   };
    var controllerInstance = new ValueController()
   {
       ControllerContext = controllerContext
   };

（这只是半个答案，但对于注释字段来说太大了…）

您对new HttpCookieCollection()的嘲讽是正确的。此代码在分离中工作：

var request = new Mock<HttpRequestBase>(MockBehavior.Strict);
request.SetupGet(x => x.ApplicationPath).Returns("/");
request.SetupGet(x => x.Url).Returns(new Uri("http://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(Moq.It.IsAny<String>())).Returns((String url) => url);
// response.SetupGet(x => x.Cookies).Returns(new HttpCookieCollection()); // This also failed to work
var context = new Mock<HttpContextBase>(MockBehavior.Strict);
context.SetupGet(x => x.Request).Returns(request.Object);
context.SetupGet(x => x.Response).Returns(response.Object);
context.SetupGet(x => x.Response.Cookies).Returns(new HttpCookieCollection()); // still can't call the Clear() method

// Here clearing the cookies works just fine:
var instance = context.Object;
instance.Response.Cookies.Clear();

所以错误不在那里，而是在其他地方。如果您在代码中注释掉了带有Response.Cookies.Clear()的行，会发生什么？那么其他的嘲笑都对吗？当您调试测试时，您能看到mock的其余部分如预期的那样吗？如果是的话，我会很惊讶（但我以前也很惊讶…）。

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