Testing an ASMX Web Service Using NUnit and Session State Transfer

I have a test class NUnit that starts an ASP.NET web service (using Microsoft.VisualStudio.WebHost.Server) that is running at http: // localhost: 1070

The problem I am running into is that I want to create a session state in an NUnit test accessible by an ASP.NET web service at localhost: 1070.
I did the following and the session state can be successfully created inside NUnit Test but lost when calling a web service:

//Create a new HttpContext for NUnit Testing based on:
//http://blogs.imeta.co.uk/jallderidge/archive/2008/10/19/456.aspx
HttpContext.Current = new HttpContext(
    new HttpRequest("", "http://localhost:1070/", ""), new HttpResponse(
     new System.IO.StringWriter()));

//Create a new HttpContext.Current for NUnit Testing
System.Web.SessionState.SessionStateUtility.AddHttpSessionStateToContext(
 HttpContext.Current, new HttpSessionStateContainer("",
  new SessionStateItemCollection(),
  new HttpStaticObjectsCollection(), 20000, true,
  HttpCookieMode.UseCookies, SessionStateMode.Off, false));

HttpContext.Current.Session["UserName"] = "testUserName";
testwebService.testMethod(); 

      

        
        
        
      

    

I want to get session state generated in NUnit test for session ["UserName"] in ASP.NET Web Service:

[WebMethod(EnableSession=true)]
public int testMethod()
{
    string user; 

    if(Session["UserName"] != null)
    {
       user = (string)Session["UserName"];

      //Do some processing of the user
      //user is validated against with value stored in database
      return 1;
    }
    else
      return 0;
}

      

        
        
        
      

    

The web.config file has the following configuration for session state configuration and would like to continue to use InProc and not StateServer or SQLServer:

<sessionState mode="InProc" stateConnectionString="tcpip=127.0.0.1:42424" cookieless="false" timeout="20"/>