如何将会话添加到模拟 httpcontext？

Question

根据 scott hanselman 的模拟示例 http://www.hanselman.com/blog/ASPNETMVCSessionAtMix08TDDAndMvcMockHelpers.aspx，我尝试使用 MockHelpers 作为下面的代码 sn-p 来模拟 httpcontext

controller = GetAccountController();

ActionResult result = controller.ChangePassword();

HttpContextBase hb = MvcMockHelpers.FakeHttpContext("~/Account/ChangePassword");
hb.Session.Add("id", 5);

// Assert Assert.AreEqual(5, (int)hb.Session["id"]);

我注意到没有添加会话，也没有收到任何错误。会话对象的属性值低于

Count = 0, CodePage = 0, Content = null, IsCookieLess = null, IsNewSession = null, IsReadOnly = null, IsSynchronized = null, Keys = null, LCID = 0, Mode = off, SessionId = null, 静态对象 = null, SynRoot = null, TimeOut = 0

对于 Rhino mock 和 Moq，我得到了相同的结果。

请告诉我如何将会话添加到模拟 httpcontext。

提前致谢。

Answer 1

这不仅是我用来模拟会话的东西，而且是你需要的大多数其他对象（请求、响应等），这段代码是 Steve Sanderson 和其他人以及我自己的代码的集合，请注意会话是使用字典伪造的

using System.Collections.Generic;
using System.Collections.Specialized;
using System.Web;
using System.Web.Routing;
using System.Web.Mvc;

namespace ECWeb2.UnitTests {
    public class ContextMocks {
        public Moq.Mock<HttpContextBase> HttpContext { get; private set; }
        public Moq.Mock<HttpRequestBase> Request { get; private set; }
        public Moq.Mock<HttpResponseBase> Response { get; private set; }
        public RouteData RouteData { get; private set; }
    public ContextMocks(Controller onController) {
        // Define all the common context objects, plus relationships between them
        HttpContext = new Moq.Mock<HttpContextBase>();
        Request = new Moq.Mock<HttpRequestBase>();
        Response = new Moq.Mock<HttpResponseBase>();
        HttpContext.Setup(x => x.Request).Returns(Request.Object);
        HttpContext.Setup(x => x.Response).Returns(Response.Object);
        HttpContext.Setup(x => x.Session).Returns(new FakeSessionState());
        Request.Setup(x => x.Cookies).Returns(new HttpCookieCollection());
        Response.Setup(x => x.Cookies).Returns(new HttpCookieCollection());
        Request.Setup(x => x.QueryString).Returns(new NameValueCollection());
        Request.Setup(x => x.Form).Returns(new NameValueCollection());

        // Apply the mock context to the supplied controller instance
        RequestContext rc = new RequestContext(HttpContext.Object, new RouteData());
        onController.ControllerContext = new ControllerContext(rc, onController);
        onController.Url = new UrlHelper(rc);
    }

    ContextMocks() {
    }

    // Use a fake HttpSessionStateBase, because it's hard to mock it with Moq
    private class FakeSessionState : HttpSessionStateBase {
        Dictionary<string, object> items = new Dictionary<string, object>();
        public override object this[string name] {
            get { return items.ContainsKey(name) ? items[name] : null; }
            set { items[name] = value; }
        }
    }
}

}

Answer 2

您引用的代码解释了如何伪造 httpcontext - 当您调用“hb.Session.Add”时它实际上并没有做任何事情 - 由于对 HttpContext 的依赖，它只是阻止测试失败。

Answer 3

您可以使用 Outercurve Foundation 提供的 MVC Contrib 库来模拟会话状态和在处理正常请求（HttpRequest、HttpResponse...等）期间可用的其他对象。

http://mvccontrib.codeplex.com/（或使用 NuGet 下载）

它包含一个TestHelper library，它可以帮助您快速创建单元测试。

例如：

[TestMethod]
public void TestSomething()
{
    TestControllerBuilder builder = new TestControllerBuilder();

    // Arrange
    HomeController controller = new HomeController();

    builder.InitializeController(controller);

    // Act
    ViewResult result = controller.About() as ViewResult;

    // Assert
    Assert.IsNotNull(result);
}

使用 MVC Contrib TestHelper 库提供的 TestControllerBuilder 类型，您可以快速初始化控制器并初始化其内部数据成员（HttpContext、HttpSession、TempData...）。

当然，HttpSessionState 本身也是这样模拟的，所以向它添加一些东西（Session.Add）实际上不会做任何事情。正如预期的那样，我们模拟了它。

似乎您想模拟 HttpContext，但仍将其设置为工作会话状态。听起来您想按照此处所述进行操作：

http://jasonbock.net/jb/Default.aspx?blog=entry.161daabc728842aca6f329d87c81cfcb

Answer 4

这是我经常做的事情

//Mock The Sesssion
_session = MockRepository.GenerateStrictMock<httpsessionstatebase>();
_session.Stub(s => s["Connectionstring"]).Return(Connectionstring);

//Mock The Context 
_context = MockRepository.GenerateStrictMock<httpcontextbase>();
_context.Stub(c => c.Session).Return(_session);

var databaseExplorerController = new DatabaseExplorerController(repository);

//Assign COntext to controller
databaseExplorerController.ControllerContext = new ControllerContext(_context, new RouteData(),
                                                                     _databaseExplorer);

我已经写了一篇关于这个的小文章

http://www.gigawebsolution.com/Posts/Details/66/Mock-Session-in-MVC3-using-Rhino-Mock

希望对你有帮助

Answer 5

有点晚了，但这是有用的。

我正在使用 https://code.google.com/p/moq/ 的 MoQ 框架

现在会话可以在控制器实现中使用。

    private class MockHttpSession : HttpSessionStateBase
    {
        readonly Dictionary<string, object> _sessionDictionary = new Dictionary<string, object>();
        public override object this[string name]
        {
            get
            {
                object obj = null;
                _sessionDictionary.TryGetValue(name, out obj);
                return obj;
            }
            set { _sessionDictionary[name] = value; }
        }
    }

    private ControllerContext CreateMockedControllerContext()
    {
        var session = new MockHttpSession();
        var controllerContext = new Mock<ControllerContext>();
        controllerContext.Setup(m => m.HttpContext.Session).Returns(session);

        return controllerContext.Object;
    }

    [TestMethod]
    public void Index()
    {
        // Arrange
        MyController controller = new MyController();
        controller.ControllerContext = CreateMockedControllerContext(); 

        // Act
        ViewResult result = controller.Index() as ViewResult;

        ....
    }