How to Mock IHttpSessionState Vlue

Can someone help....

We are using WCSF (Web Client Software Factory - MVP).

I am writing unit test and I need to mock IHttpSessionState value. How to do that?

Here is a partial code I am using to create MockRequest, MockContext etc.

Thanks in advance.....

In my presenter code some I am using something like:

string queryStringParam1 = _controller.Current.Context.QueryString["QueryStringParam1"];
string queryStringParam2 = _controller.Current.Context.QueryString["QueryStringParam2"];
string sessionParam = _controller.Context.Session["SessionParam1"];

----------------------

For this presenter I am writing Test and I am mocking as follows:

However I am not able to mock (or I don't know.....how to mock)
_controller.Context.Session["SessionParam1"]

Sample Code:

IHttpContextLocatorService _httpContextService = RecorderManager.CreateMockedObject<IHttpContextLocatorService>();

MockProcessController_controller = new MockProcessController(_httpContextService);

PresenterABC _presenter = new PresenterABC(_controller);

IHttpContext mockContext = (IHttpContext)MockManager.MockObject(typeof(IHttpContext)).Object;

MockObject<HttpRequest> mockRequest = MockManager.MockObject<HttpRequest>(Constructor.Mocked);

NameValueCollection mockQueryString = (NameValueCollection)RecorderManager.CreateMockedObject(typeof(NameValueCollection), Constructor.NotMocked);

mockQueryString.Add("QueryStringParam1", "Value1");
mockQueryString.Add("QueryStringParam2", "Value2");

using (RecordExpectations recorder = RecorderManager.StartRecording())
{
recorder.ExpectAndReturn(_controller.Context, mockContext).Repeat(3);
recorder.ExpectAndReturn(mockContext.Request.QueryString, mockQueryString).Repeat(2);
recorder.ExpectAndReturn(mockRequest, mockContext.Request).Repeat(2);

recorder.ExpectAndReturn(_httpContextService.GetCurrentContext(), mockContext);
}