ruby-on-rails – Capybara问题：@request必须是ActionDispatch

require 'integration_test_helper'

class UsersTest < ActionDispatch::IntegrationTest
  fixtures :all

  context "signup" do

    context "failure" do

      setup do
      @attr = { :name => "",:email => "",:password => "",:password_confirmation => "" }
      end

      should "not make a new user" do
        assert_no_difference 'User.count' do
          post_via_redirect "users",:user =>@attr  # enviem les dades d'un nou usuari via create (POST /users)
          assert_template 'users/new'     # ens retorna a users/new,que significa que no s'ha creat l'usuari
          assert_select "div#error_explanation" # comprovem que conte missatges d'error
        end
      end

      should "not make a new user (capybara)" do
        assert_no_difference 'User.count' do
          visit '/signup'
          fill_in 'Name',:with => @attr[:name]
          fill_in 'Email',:with => @attr[:email]
          fill_in 'Password',:with => @attr[:password]
          fill_in 'Confirmation',:with => @attr[:password_confirmation]
          click_button 'Sign Up!'
          assert_template 'users/new'     # ens retorna a users/new,que significa que no s'ha creat l'usuari
          assert_select "div#error_explanation" # comprovem que conte missatges d'error
        end
      end
    end
end

虽然第一个工作正常,但水豚之一会抛出此错误消息：

================================================================================
Error:
test: signup failure should not make a new user (capybara). (UsersTest):
ArgumentError: @request must be an ActionDispatch::Request
    test/integration/users_test.rb:30:in `block (4 levels) in <class:UsersTest>'
    test/integration/users_test.rb:23:in `block (3 levels) in <class:UsersTest>'
================================================================================

所需的* integration_test_helper.rb *文件是我发现的所有被解决的解决方案的累加器,这对我来说不起作用.

require 'test_helper'
require 'capybara/rails'
require 'database_cleaner'

# Transactional fixtures do not work with Selenium tests,because Capybara
# uses a separate server thread,which the transactions would be hidden
# from. We hence use DatabaseCleaner to truncate our test database.
DatabaseCleaner.strategy = :truncation

class ActionDispatch::IntegrationTest
  # Make the Capybara DSL available in all integration tests
  include Capybara::DSL

  # Stop ActiveRecord from wrapping tests in transactions
  self.use_transactional_fixtures = false

  teardown do
    DatabaseCleaner.clean       # Truncate the database
    Capybara.reset_sessions!    # Forget the (simulated) browser state
    Capybara.use_default_driver # Revert Capybara.current_driver to Capybara.default_driver
  end
end

有人有解决方案吗？我应该尝试另一个集成frmawork,如webrat？

我的设置是：

marcel@pua:~/Desenvolupament/Rails3Examples/ror_tutorial$rake about
About your application's environment
Ruby version              1.9.2 (x86_64-linux)
RubyGems version          1.8.15
Rack version              1.3
Rails version             3.1.3
JavaScript Runtime        therubyracer (V8)
Active Record version     3.1.3
Action Pack version       3.1.3
Active Resource version   3.1.3
Action Mailer version     3.1.3
Active Support version    3.1.3
Middleware                ActionDispatch::Static,Rack::Lock,#<ActiveSupport::Cache::Strategy::LocalCache::Middleware:0x00000002b9bac0>,Rack::Runtime,Rack::MethodOverride,Rails::Rack::Logger,ActionDispatch::ShowExceptions,ActionDispatch::RemoteIp,Rack::Sendfile,ActionDispatch::Reloader,ActionDispatch::Callbacks,ActiveRecord::ConnectionAdapters::ConnectionManagement,ActiveRecord::QueryCache,ActionDispatch::Cookies,ActionDispatch::Session::CookieStore,ActionDispatch::Flash,ActionDispatch::ParamsParser,ActionDispatch::Head,Rack::ConditionalGet,Rack::ETag,ActionDispatch::BestStandardsSupport
Application root          /mnt/dropbox/Dropbox/DESENVOLUPAMENT/Rails3Examples/ror_tutorial
Environment               development
Database adapter          sqlite3
Database schema version   20120127011330

也

shoulda-context (1.0.0)
capybara (1.1.2)

谢谢