测试包含HttpContext.Current的代码

虽说直接测试这样的代码有违设计的原则，但用下面的方法可以对已有这样的代码进行单元测试

[TestMethod]

public void Test_CreateHttpSessionTest()

{

    HttpContext.Current = new HttpContext(new HttpRequest(string.Empty,"http://localhost/",string.Empty),

                                          new HttpResponse(new StringWriter()));



    SessionStateItemCollection sessions = new SessionStateItemCollection();



    sessions["PartnerAlias"] = "devtest1";



    IHttpSessionState iSessState = new HttpSessionStateContainer

                                        (string.Empty,sessions,

                                         new HttpStaticObjectsCollection(),20000,true,

                                         HttpCookieMode.UseCookies,SessionStateMode.Off,false);



    SessionStateUtility.AddHttpSessionStateToContext(HttpContext.Current,iSessState);



    Assert.IsNotNull(HttpContext.Current.Session);



    Assert.AreEqual(HttpContext.Current.Session["partnerAlias"].ToString(), "devtest1");

    Assert.IsNotNull(HttpContext.Current.Cache);

}