Тест интеграции Rails с устройством gem

Я хочу написать тест интеграции rails (с ActionDispatch :: IntegrationTest ). Я использую устройство для аутентификации и машинист для тестовых моделей. Я не могу войти в систему.

Вот простой пример:

class UserFlowsTest < ActionDispatch::IntegrationTest
  setup do
    User.make
  end
  test "sign in to the site" 
    # sign in
    post_via_redirect 'users/sign_in', :email => 'foo@bar.com', :password => 'qwerty'    
    p flash
    p User.all
end

Вот результат отладки:

Loaded suite test/integration/user_flows_test
Started
{:alert=>"Invalid email or password."}
[#<User id: 980190962, email: "", encrypted_password: "", password_salt: "", reset_password_token: nil, remember_token: nil, remember_created_at: nil, sign_in_count: 0, current_sign_in_at: nil, last_sign_in_at: nil, current_sign_in_ip: nil, last_sign_in_ip: nil, created_at: "2010-11-27 16:44:10", updated_at: "2010-11-27 16:44:10">, #<User id: 980190963, email: "foo@bar.com", encrypted_password: "$2a$10$vYSpjIfAd.Irl6eFvhJL0uAwp4qniv5gVl4O.Hnw/BUR...", password_salt: "$2a$10$vYSpjIfAd.Irl6eFvhJL0u", reset_password_token: nil, remember_token: nil, remember_created_at: nil, sign_in_count: 0, current_sign_in_at: nil, last_sign_in_at: nil, current_sign_in_ip: nil, last_sign_in_ip: nil, created_at: "2010-11-27 17:09:13", updated_at: "2010-11-27 17:09:13">]
"/unauthenticated"
F

Вот мой blueprints.rb:

require 'machinist/active_record'
require 'sham'

User.blueprint do
  email {"foo@bar.com"}
  password {"qwerty"}
end