Question

我们正在尝试将rails build从本地网络服务器迁移到运行Ubuntu的AWS EC2实例。测试套件适用于所有开发人员机器（mac和ubuntu的组合）和旧的构建服务器（linux），但拒绝传递亚马逊实例。

症状是：

An error occurred in an after hook
   Errno::ECONNREFUSED: Connection refused - connect(2)
   occurred at /home/ubuntu/.rvm/rubies/ruby-2.0.0-p481/lib/ruby/2.0.0/net/http.rb:878:in 'initialize'

重复了很多次。在此之前没有记录错误。

然而，只有在同时运行多个测试时才会出现此问题（例如，捆绑exec rspec） - 当我单独运行每个测试时，它们都会通过。在本地，开发团队之前都没有看过这个问题。我们的测试使用Selenium和Firefox，它们应该使用Xvfb在ubuntu上无头运行。我们还使用WebMock进行一些测试。

我已经研究了这个问题一两天了，并尝试了我能想到的一切，但无济于事。我检查了firefox的版本，所有安装的gems在aws上和本地一样。

我的gemfile和spec_helper如下。我已经调查了firefox和xvfb的安装，但是由于每个测试都能够单独通过，我觉得系统通常都没问题......但显然有些事情并不开心。

版本详情

ruby 2.0.0p481
rails 3.2.16
rspec 2.14.8
firefox 29
ubuntu 14.04

的Gemfile

source 'https://rubygems.org'
#Base gems
gem 'rails', '~> 3.2.16'
gem 'sass-rails'
gem 'bcrypt-ruby', '~> 3.0.0'
gem 'faker', '~> 1.2.0'
gem 'jquery-rails', '~> 3.0.0'
#gem 'jquery-rails', '~> 2.1.4'
gem 'jquery-migrate-rails'

# threading gem
gem 'sucker_punch', '~> 1.0'
gem 'mixpanel-ruby'

# Mongo gems
gem 'mongoid', '~> 3.1.6'
gem 'bson_ext', '~> 1.9.2'
gem 'origin', '~> 1.1.0'
gem 'mongoid-enum' , '~> 0.1.1'

#filemaker gem
#gem 'ginjo-rfm', '~> 2.1.7'

# data gird gem
gem 'datagrid', '1.0.5'


# New Relic and Engine Yard Gems
gem 'ey_config', '~> 0.0.6'
gem 'newrelic_rpm'


#Authorsiation
gem 'cancan', '~> 1.6.10'

#paging
gem 'kaminari', '~> 0.15'

#client side validation
gem 'jquery-validation-rails'

#file upload
gem 'carrierwave-mongoid', :require => 'carrierwave/mongoid'
gem 'rmagick', '~> 2.13.2'
gem 'fog' , '~> 1.19.0'
gem 'unf', '~> 0.1.3'
gem 'remotipart', '~> 1.2'

gem 'listen', '2.7.6'

# reports for jenkins - see if having it here allows engineyard to deploy
gem 'ci_reporter', '1.9.1'

#NOTE YOU MUST INSTALL IMG MAGIC IF bundle install fails
#http://www.imagemagick.org/script/binary-releases.php#unix
#sudo apt-get install libmagickwand-dev imagemagick

gem 'timecop', '~> 0.7.1'

#file upload
gem 'jquery-fileupload-rails', '~> 0.4.1'

gem 'jquery-cookie-rails', '~> 1.3.1'

#configuring Rails
gem 'figaro'

#History tracking
gem 'mongoid-history'

gem 'nav_lynx'

#modal window requirements
gem 'jquery-ui-rails'
gem 'jquery-modal-rails'

gem 'itree'
gem 'lumberjack'

gem 'newrelic_moped'

group :development, :test do
  gem 'rspec-rails', '~> 2.14.0'
  gem 'guard-rspec', '~> 4.2.0'
  gem 'guard-spork', '~> 1.5.1'
  gem 'childprocess', '0.3.9'
  gem 'spork', '~> 1.0.0rc4'
  gem 'spork-rails', '~> 4.0.0'
  gem 'bullet'
end

group :development, :staging do
  gem 'rack-mini-profiler'
end

#Used to annotate model files generated
group :development do
  gem 'annotate', '~> 2.6.0'
  gem 'letter_opener', '~> 1.1.2'

end

# Gems used only for assets and not required
# in production environments by default.
group :assets do
  gem 'coffee-rails', '~> 3.2.2'
  gem 'uglifier', '~> 2.3.2'
end

group :test do
  gem 'capybara', '~> 2.2.1'
  gem 'selenium-webdriver', '2.39.0'
  gem 'database_cleaner', '~> 1.2.0'

  #needs sudo apt-get install xvfb
  gem 'headless'

  #static security analysis tool
  gem 'brakeman', :require => false

  #generating mock objects in tests
  gem 'factory_girl_rails', '~> 4.3.0'
  gem 'webmock', '~> 1.16.0'

  #for windows
  gem 'rb-fchange' if /win32/ =~ RUBY_PLATFORM
  gem 'rb-notifu' if /win32/ =~ RUBY_PLATFORM
  gem 'win32console' if /win32/ =~ RUBY_PLATFORM

  #for linux
  gem 'rb-inotify', '~> 0.9.2' if /linux/ =~ RUBY_PLATFORM
  gem 'libnotify', '~> 0.8.2' if /linux/ =~ RUBY_PLATFORM

  #for macosx
  gem 'growl', '~> 1.0.3' if /darwin/ =~ RUBY_PLATFORM
  gem 'rb-fsevent', '~> 0.9.3' if /darwin/ =~ RUBY_PLATFORM

  # for rcov in Jenkins
  gem 'simplecov'
  gem 'simplecov-rcov'

  #additional matches for rspect
  gem 'shoulda-matchers', '~> 2.5.0'

  #open browser on demand to debug tests
  gem 'launchy'

  #http  rest client
  gem 'rest-client', '~> 1.6.7'

  gem 'show_me_the_cookies'


end

spec_helper.rb

require 'rubygems'
require 'spork'
require 'webmock/rspec'
require 'sucker_punch'
require 'sucker_punch/testing/inline'

Spork.prefork do

  if ENV["RUBYMINE_HOME"]
    $:.unshift(File.expand_path("rb/testing/patch/common", ENV["RUBYMINE_HOME"]))
    $:.unshift(File.expand_path("rb/testing/patch/bdd", ENV["RUBYMINE_HOME"]))
  end

  # setup simple cov for Jenkins
  require 'simplecov'
  require 'simplecov-rcov'
  SimpleCov.formatter = SimpleCov::Formatter::RcovFormatter
  SimpleCov.start 'rails'

  ENV["RAILS_ENV"] ||= 'test'
  require File.expand_path("../../config/environment", __FILE__)
  require 'rspec/rails'
  require 'rspec/autorun'

  # Requires supporting ruby files with custom matchers and macros, etc,
  # in spec/support/ and its subdirectories.
  Dir[Rails.root.join("spec/support/**/*.rb")].each {|f| require f}

  RSpec.configure do |config|

    config.include ShowMeTheCookies

    # Include Factory Girl syntax to simplify calls to factories
    config.include FactoryGirl::Syntax::Methods

    #Don't run any tests that contain :skip_test => true
    config.filter_run_excluding :skip_test => true

    # If true, the base class of anonymous controllers will be inferred
    # automatically. This will be the default behavior in future versions of
    # rspec-rails.
    config.infer_base_class_for_anonymous_controllers = false

    # Run specs in random order to surface order dependencies. If you find an
    # order dependency and want to debug it, you can fix the order by providing
    # the seed, which is printed after each run.
    #     --seed 1234
    config.order = "random"
    config.include Capybara::DSL

    config.before(:suite) do
      Headless.new.start
    end

    config.before(:all) do

      #manually clear database
      YearDates.destroy_all
      CoursePlan.destroy_all
      Topic.destroy_all
      FactoryGirl.create(:stub_year_dates)
    end

    config.after(:all) do
      Timecop.return
    end

    #Mongoid database cleaner
    config.before(:suite) do
      DatabaseCleaner[:mongoid, {:connection => :unit_test}].clean_with(:truncation)
      DatabaseCleaner[:mongoid, {:connection => :unit_test}].strategy = :truncation
    end

    config.before(:each) do
      new_time = Time.local(2014, 1, 20) #week two of the year
      Timecop.travel(new_time)
      Timecop.baseline = new_time
      DatabaseCleaner[:mongoid, {:connection => :unit_test}].start
      FactoryGirl.create(:stub_year_dates) #recreate this on each test as it is needed all the time, but edited sometimes
      #need to ensure these exist before the other factories are called
      FactoryGirl.create(:english_subject)
      FactoryGirl.create(:chemistry_subject)
      FactoryGirl.create(:maths_ext_2_subject)
      FactoryGirl.create(:maths_ext_1_tutorials_only_subject)
    end

    config.after(:each) do
      Timecop.return_to_baseline
      DatabaseCleaner[:mongoid, {:connection => :unit_test}].clean
    end

    Capybara.default_wait_time = 5 #wait longer for ajax requests
  end
end

Spork.each_run do
  # This code will be run each time you run your specs.
  FactoryGirl.reload

end

WebMock.allow_net_connect!

我非常感谢任何帮助！

更新

我已确定测试运行之间的结果不一致。起初我认为每次都是相同的，但每次运行的测试失败次数各不相同。我认为我已经解决了所有测试通过除了一个以外的问题，但是下一次测试又回到了一百多次失败。

更新2

经过仔细检查（哎呀），我发现有些测试失败，大多数人都有不同的错误。他们报告的是“文件结束时间”，而不是ECONNREFUSED。当我禁用这些测试（总共5个）时，剩余的测试可靠地通过。我怀疑xvfb遇到了一些javascript或ajax相关的错误，这会阻止以下任何测试通过。我们现在正在努力诊断导致失败的这些测试中发生的事情。

Answer 1

在“不确定”下提交此内容。我们最终运行了一个新的AWS服务器并从头开始重新设置它，这次它工作正常。有些人怀疑javascript驱动程序存在问题，可能与权限有关，但是我们不值得花时间调查。

Rspec套件无法在带有ECONNREFUSED的AWS Ubuntu上运行 - 但每个测试都单独通过

版本详情

的Gemfile

spec_helper.rb

更新

更新2

1 个答案: