I just started using tests. I try to test the login like this

require 'test_helper'

class UserFlowsTest < ActionController::IntegrationTest
  fixtures :all

  # Replace this with your real tests.
  test "login and browse" do
    https!
    get "/users/new"
    assert_response :success 
    post "/user_sessions", :email => '[email protected]', :password  => 'aaaa' 
    follow_redirect!
    assert_equal root_path, path 
  end
end

I use authlogic gem in my rails app. What is wrong with this test? It breaks at 'follow_redirect!' saying it is not a redirection but login through a browser works. Thx!