Creating new integration test simulating sign in and sign out with user and admin at same time.

app/controllers/sessions_controller.rb

@@ -1,6 +1,6 @@
 class SessionsController < ApplicationController
   before_filter :authenticate!, :only => :destroy
-  before_filter :require_no_authentication, :except => :destroy
+  #before_filter :require_no_authentication, :except => :destroy
 
   # GET /session/new
   #

lib/devise/controllers/filters.rb

@@ -32,7 +32,9 @@ module Devise
         redirect_to new_session_path(scope) unless authenticated?(scope)
       end
 
-      # Helper for use in before_filters where no authentication is required:
+      # Helper for use in before_filters where no authentication is required.
+      # Please note that all scopes will be tested within this filter, and if
+      # one of then is authenticated the filter will redirect.
       # Example:
       #   before_filter :require_no_authentication, :only => :new
       #

test/integration/admins/authentication_test.rb

@@ -2,12 +2,6 @@ require 'test/test_helper'
 
 class AdminsAuthenticationTest < ActionController::IntegrationTest
 
-  test 'home should be accessible without signed in admins' do
-    visit '/'
-    assert_response :success
-    assert_template 'home/index'
-  end
-
   test 'not signed in as admin should not be able to access admins actions' do
     get admins_path
 

test/integration/authentication_test.rb

@@ -0,0 +1,50 @@
+require 'test/test_helper'
+
+class AuthenticationTest < ActionController::IntegrationTest
+
+  test 'home should be accessible without signed in admins' do
+    visit '/'
+    assert_response :success
+    assert_template 'home/index'
+  end
+
+  test 'sign in as user should not authenticate admin scope' do
+    sign_in_as_user
+
+    assert warden.authenticated?(:user)
+    assert_not warden.authenticated?(:admin)
+  end
+
+  test 'sign in as admin should not authenticate user scope' do
+    sign_in_as_admin
+
+    assert warden.authenticated?(:admin)
+    assert_not warden.authenticated?(:user)
+  end
+
+  test 'sign in as both user and admin at same time' do
+    sign_in_as_user
+    sign_in_as_admin
+
+    assert warden.authenticated?(:user)
+    assert warden.authenticated?(:admin)
+  end
+
+  test 'sign out as user should not touch admin authentication' do
+    sign_in_as_user
+    sign_in_as_admin
+
+    delete user_session_path
+    assert_not warden.authenticated?(:user)
+    assert warden.authenticated?(:admin)
+  end
+
+  test 'sign out as admin should not touch user authentication' do
+    sign_in_as_user
+    sign_in_as_admin
+
+    delete admin_session_path
+    assert_not warden.authenticated?(:admin)
+    assert warden.authenticated?(:user)
+  end
+end

test/integration/users/authentication_test.rb

@@ -2,12 +2,6 @@ require 'test/test_helper'
 
 class UsersAuthenticationTest < ActionController::IntegrationTest
 
-  test 'home should be accessible without signed in users' do
-    visit '/'
-    assert_response :success
-    assert_template 'home/index'
-  end
-
   test 'not signed in as user should not be able to access users actions' do
     get users_path