title: Getting Session Value from ScalatraTest-ScalaTest
body: <p>I am currently writing a number of Scalatra tests using the ScalaTest framework and the ScalatraSuite class.  </p>
  
  <pre><code>  test("when i try to go to the base url it shold redirect me "){
      get("/") {
        status should be(302) 
      }
    }
  </code></pre>
  
  <p>The next step requires me to check the existance of some session values but it is unclear how to do this?  Can anyone advise?  I am creating a SessionAccess trait that, for the purposes of the test, overriding witha  simple trait the stores session in an accessible HashMap but I am certain there is a simpler way?</p>