Unit testing a controller

Controller.cs

// Version 0: Nope.
public class SomeController
{
  public object Get(string story, string view)
  {
    // Unit test blows up on the following line because there
    // is no Request (NullReferenceException) from within a 
    // unit test.
    var queryString = Request.RequestUri.ParseQueryString();
    // snip
  }
}

// Version 1: This can be unit tested now, so it's better insofar as my tests
// can pass.
public class SomeController
{
  public bool HasRequestUri
  {
    get { return Request != null && Request.RequestUri != null; }
  }
  
  public object Get(string story, string view)
  {
    // No exception thrown if the Request is null.
    var queryString = GetQueryString();
    // snip
  }
  
  private static NameValueCollection GetQueryString()
  {
    return HasRequestUri ? Request.RequestUri.ParseQueryString() : new NameValueCollection();
  }
}

// Version 2: I stil can't test that different things should happen based on values
// that might be in the query string, so I need to expose the query string.
public class SomeController
{
  private NameValueCollection queryString;
  
  public bool HasRequestUri
  {
    get { return Request != null && Request.RequestUri != null; }
  }
  
  public NameValueCollection QueryString
  {
    get
    {
      if (queryString != null)
        return queryString;
      
      queryString = HasRequestUri ? Request.RequestUri.ParseQueryString() : new NameValueCollection();
      return queryString;
    }
    set { queryString = value; }
  }
  
  public object Get(string story, string view)
  {
    // Now use QueryString instead of queryString everywhere in this method.
    
    // snip
  }
}