def logged_in?
    unless current_user
      redirect_to root_path
    end
  end

  private
  def current_user_session
    return @current_user_session if defined?(@current_user_session)
    @current_user_session = UserSession.find
  end

  def current_user
    return @current_user if defined?(@current_user)
    @current_user = current_user_session && current_user_session.record
  end

class ActionController::TestCase
  setup :activate_authlogic
end

class PostsControllerTest < ActionController::TestCase
  setup do
    UserSession.create(:username => "dmix", :password => "12345")
  end

  test "should get new" do
    get :new
    assert_response :success
  end

u = users(:dmix)
UserSession.create(u)

setup :activate_authlogic

def login_user(options = {})
  user = User.make(options)
  @controller.stub!(:current_user).and_return(user)
end

class ActionController::TestCase
  def self.inherited(subclass)
    subclass.instance_eval do
      setup :activate_authlogic
    end
  end
end