title: Hartl's RoR Chapter 8.2.5 - UsersController sign_in undefined
body: <p>I'm going through Hartl's RoR Tutorial, Chapter 8.2.5 (<a href="http://ruby.railstutorial.org/chapters/sign-in-sign-out#sec-signin_upon_signup" rel="nofollow">http://ruby.railstutorial.org/chapters/sign-in-sign-out#sec-signin_upon_signup</a>) and I couldn't get the "User Pages signup with valid information should create a user" test to past, receiving the following error messages:</p>
  
  <pre><code>1) User Pages signup with valid information should create a user
   Failure/Error: expect {click_button submit}.to change(User, :count).by(1)
   NoMethodError:
     undefined method `sign_in' for #&lt;UsersController:0x007fcdb3b066d8&gt;
  </code></pre>
  
  <p>I was able to find a work-around this by using</p>
  
  <pre><code>include SessionsHelper
  </code></pre>
  
  <p>in the users_controller.rb. Did anybody else experience the same things (and this was a implied step in the tutorial) or did I miss a step?</p>
  
  <p>EDIT: As per Sevenseacat's comment, I missed step 8.2.1 where he included it in his ApplicationController. </p>