*scratch*

  def i_sign_in(user, password='secret')
    if user.is_a?(User)
      visit new_user_session_path
      within('#user_new') do
        fill_in('Email', :with => user.email)
        fill_in('Password', :with => password)
        click_button('Sign in')
      end
    elsif user.is_a?(Admin)
      visit new_admin_session_path
      within('#admin_new') do
        fill_in('Email', :with => user.email)
        fill_in('Password', :with => password)
        click_button('Sign in')
      end
    end
  end