2009-02-07 95 views
40

我使用shanselmann's MvcMockHelper类来模拟一些使用Moq的HttpContext的东西,但我遇到的问题是能够将我的模拟会话对象分配给我的MVC控制器,然后能够在单元测试中读取相同的值以进行验证。你如何使用Moq模拟会话对象集合

我的问题是,如何将存储集合分配给模拟会话对象,以允许诸如session [“UserName”] =“foo”之类的代码保留“foo”值并使其在单元测试中可用。

回答

58

我从Scott Hanselman的MVCMockHelper开始,添加了一个小类,并进行了如下所示的修改,以允许控制器正常使用会话,单元测试验证由控制器设置的值。

/// <summary> 
/// A Class to allow simulation of SessionObject 
/// </summary> 
public class MockHttpSession : HttpSessionStateBase 
{ 
    Dictionary<string, object> m_SessionStorage = new Dictionary<string, object>(); 

    public override object this[string name] 
    { 
     get { return m_SessionStorage[name]; } 
     set { m_SessionStorage[name] = value; } 
    } 
} 

//In the MVCMockHelpers I modified the FakeHttpContext() method as shown below 
public static HttpContextBase FakeHttpContext() 
{ 
    var context = new Mock<HttpContextBase>(); 
    var request = new Mock<HttpRequestBase>(); 
    var response = new Mock<HttpResponseBase>(); 
    var session = new MockHttpSession(); 
    var server = new Mock<HttpServerUtilityBase>(); 

    context.Setup(ctx => ctx.Request).Returns(request.Object); 
    context.Setup(ctx => ctx.Response).Returns(response.Object); 
    context.Setup(ctx => ctx.Session).Returns(session); 
    context.Setup(ctx => ctx.Server).Returns(server.Object); 

    return context.Object; 
} 

//Now in the unit test i can do 
AccountController acct = new AccountController(); 
acct.SetFakeControllerContext(); 
acct.SetBusinessObject(mockBO.Object); 

RedirectResult results = (RedirectResult)acct.LogOn(userName, password, rememberMe, returnUrl); 
Assert.AreEqual(returnUrl, results.Url); 
Assert.AreEqual(userName, acct.Session["txtUserName"]); 
Assert.IsNotNull(acct.Session["SessionGUID"]); 

这不是完美的,但它足以用于测试。

0

我认为你可以设置一个具体值的模拟期望它应该返回任何。嘲笑不是作为实际的假货,而是你可以断言的行为。

这听起来像你实际上正在寻找一个适配器,你可以环绕会话,你可以在测试期间和运行时提供不同的实现它会返回HttpContext会话项?

这是否有意义?

2

我刚刚发现了一个很好的例子,说明Oxite团队如何伪造他们的HttpSessionState并在该假冒中维护一个SessionStateItemCollection集合。这应该和我的情况一样。

编辑:

URL这个例子是http://oxite.codeplex.com/sourcecontrol/changeset/view/33871?projectName=oxite#388065

+1

,以便其他人通过搜索查找此问题,可否请您发布一条指向您发现的信息的链接以回答问题。 – 2009-03-02 23:08:35

+0

+1链接获取更多信息。 – 2009-05-05 02:50:23

+0

我想他是在谈论这个课程: http://oxite.codeplex。com/sourcecontrol/changeset/view/33871?projectName = oxite#388065 – andrecarlucci 2009-07-01 14:30:28

31

使用起订量3.0.308.2这里是我的账户控制器设置在我的单元测试的例子:

private AccountController GetAccountController() 
    { 
     .. setup mocked services.. 

     var accountController = new AccountController (..mocked services..); 

     var controllerContext = new Mock<ControllerContext>(); 
     controllerContext.SetupGet(p => p.HttpContext.Session["test"]).Returns("Hello World"); 
     controllerContext.SetupGet(p => p.HttpContext.User.Identity.Name).Returns(_testEmail); 
     controllerContext.SetupGet(p => p.HttpContext.Request.IsAuthenticated).Returns(true); 
     controllerContext.SetupGet(p => p.HttpContext.Response.Cookies).Returns(new HttpCookieCollection()); 

     controllerContext.Setup (p => p.HttpContext.Request.Form.Get ("ReturnUrl")).Returns ("sample-return-url"); 
     controllerContext.Setup (p => p.HttpContext.Request.Params.Get ("q")).Returns ("sample-search-term"); 

     accountController.ControllerContext = controllerContext.Object; 

     return accountController; 
    } 

那么你的控制器内方法如下应返回“Hello World”

string test = Session["test"].ToString(); 
+0

很好的答案!这正是我所需要的单元测试数据 – Rob 2010-08-23 09:31:04

3

我做了一个稍微复杂莫克比@RonnBlack

public class HttpSessionStateDictionary : HttpSessionStateBase 
{ 
    private readonly NameValueCollection keyCollection = new NameValueCollection(); 

    private readonly Dictionary<string, object> _values = new Dictionary<string, object>(); 

    public override object this[string name] 
    { 
     get { return _values.ContainsKey(name) ? _values[name] : null; } 
     set { _values[name] = value; keyCollection[name] = null;} 
    } 

    public override int CodePage 
    { 
     get { throw new NotImplementedException(); } 
     set { throw new NotImplementedException(); } 
    } 

    public override HttpSessionStateBase Contents 
    { 
     get { throw new NotImplementedException(); } 
    } 

    public override HttpCookieMode CookieMode 
    { 
     get { throw new NotImplementedException(); } 
    } 

    public override int Count 
    { 
     get { return _values.Count; } 
    } 

    public override NameObjectCollectionBase.KeysCollection Keys 
{ 
    get { return keyCollection.Keys; } 
} 

    public Dictionary<string, object> UnderlyingStore 
    { 
     get { return _values; } 
    } 

    public override void Abandon() 
    { 
     _values.Clear(); 
    } 

    public override void Add(string name, object value) 
    { 
     _values.Add(name, value); 
    } 

    public override void Clear() 
    { 
     _values.Clear(); 
    } 

    public override void CopyTo(Array array, int index) 
    { 
     throw new NotImplementedException(); 
    } 

    public override bool Equals(object obj) 
    { 
     return _values.Equals(obj); 
    } 

    public override IEnumerator GetEnumerator() 
    { 
     return _values.GetEnumerator(); 
    } 

    public override int GetHashCode() 
    { 
     return (_values != null ? _values.GetHashCode() : 0); 
    } 

    public override void Remove(string name) 
    { 
     _values.Remove(name); 
    } 

    public override void RemoveAll() 
    { 
     _values.Clear(); 
    } 

    public override void RemoveAt(int index) 
    { 
     throw new NotImplementedException(); 
    } 

    public override string ToString() 
    { 
     return _values.ToString(); 
    } 

    public bool Equals(HttpSessionStateDictionary other) 
    { 
     if (ReferenceEquals(null, other)) return false; 
     if (ReferenceEquals(this, other)) return true; 
     return Equals(other._values, _values); 
    } 
} 
发布
0

谢谢你,@RonnBlack您的解决方案的答案!就我而言,我一直得到这个例外,因为Session.SessionID为空:

System.NotImplementedException was unhandled by user code 
    HResult=-2147467263 
    Message=The method or operation is not implemented. 
    Source=System.Web 
    StackTrace: 
     at System.Web.HttpSessionStateBase.get_SessionID() 

为了解决这个问题,我实现@ RonnBlack的代码中使用的起订量Mock<HttpSessionStateBase>这种方式,代替他的MockHttpSession:

private readonly MyController controller = new MyController(); 

    [TestFixtureSetUp] 
    public void Init() 
    { 
     var session = new Mock<HttpSessionStateBase>(); 
     session.Setup(s => s.SessionID).Returns(Guid.NewGuid().ToString()); 
     var request = new Mock<HttpRequestBase>(); 
     var response = new Mock<HttpResponseBase>(); 
     var server = new Mock<HttpServerUtilityBase>(); 
     // 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 
     context.Setup(ctx => ctx.Request).Returns(request.Object); 
     context.Setup(ctx => ctx.Response).Returns(response.Object); 
     context.Setup(ctx => ctx.Session).Returns(session.Object); 
     context.Setup(ctx => ctx.Server).Returns(server.Object); 
     context.SetupGet(x => x.Request).Returns(request.Object); 
     context.SetupGet(p => p.Request.Url).Returns(new Uri("http://www.mytesturl.com")); 
     var queryString = new NameValueCollection { { "code", "codeValue" } }; 
     context.SetupGet(r => r.Request.QueryString).Returns(queryString); 

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

有关详细信息,请参阅http://weblogs.asp.net/gunnarpeipman/using-moq-to-mock-asp-net-mvc-httpcontextbase

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