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);
}

王德水