title: ASP .Net MVC 3 HTTPContext Wrapper
body: <p>In an effort to move to TDD and unit testable code I have read that I should be using an HttpContext wrapper. In my service layer as well as in my controllers I have to access the HttpContext Session for some data I have stored there.</p>
  
  <p>Can someone provide an example of an HttpContext Wrapper implementation for MVC 3</p>