Better user specs for joining tables

app/controllers/admin/users_controller.rb

@@ -1,6 +1,7 @@
 module Admin
   class UsersController < Admin::ApplicationController
     skip_before_filter :authenticate_administrator!, only: :test_login
+    skip_before_filter :set_locale, only: :test_login
     # GET /users
     # GET /users.json
     def index
@@ -27,8 +28,10 @@ module Admin
     def test_login
       if Rails.env.test? and user = User.find_by_email(params[:email])
         sign_in user
+        render layout: false
+      else
+        render nothing: true
       end
-      render nothing: true
     end
 
     # GET /users/new