警卫+斯波克慢速测试，没有收到--drb选项

Question

我正在通过Vagrant开发一个Rails项目(Ubuntu 32位，Rails 4.0.3，Ruby2.1.0p0)。

为了加快测试速度(使用RSpec，Capybara)，我刚刚尝试了在我的项目中添加Spork，现在看到的测试要慢得多。如果我只运行"rspec ."，我的所有测试都会在5.83秒内通过。但是，当我通过“-c -p”运行保护程序时，我保存了一个规范文件，时间为26.08秒。

注意:我必须运行“守护-p”才能真正获得保护，以便在文件中运行我的测试，通过Vagrant保存。

当守护程序开始运行测试时，它会显示args：

["--color", "--failure-exit-code", "2", "--format", "progress", "--format",   
"Guard::RSpec::Formatter", "--require", "/home/vagrant/.rvm/gems/ruby-2.1.0/  
gems/guard-rspec-4.2.7/lib/guard/rspec/formatter.rb", "spec"]...

我看到“--格式”列出了两次，而"--drb“根本没有出现。

这是我的守护文件

guard 'spork', :rspec_env => { 'RAILS_ENV' => 'test' }, :test_unit => false do
  watch('config/application.rb')
  watch('config/environment.rb')
  watch('config/environments/test.rb')
  watch(%r{^config/initializers/.+\.rb$})
  watch('Gemfile.lock')
  watch('spec/spec_helper.rb') { :rspec }
end

guard :rspec, :cmd => 'rspec --drb' do
  watch(%r{^spec/.+_spec\.rb$})
  watch(%r{^lib/(.+)\.rb$})     { |m| "spec/lib/#{m[1]}_spec.rb" }
  watch('spec/spec_helper.rb')  { "spec" }

  # Rails example
  watch(%r{^app/(.+)\.rb$})                           { |m| "spec/#{m[1]}_spec.rb" }
  watch(%r{^app/(.*)(\.erb|\.haml|\.slim)$})          { |m| "spec/#{m[1]}#{m[2]}_spec.rb" }
  watch(%r{^app/controllers/(.+)_(controller)\.rb$})  { |m| ["spec/routing/#{m[1]}_routing_spec.rb", "spec/#{m[2]}s/#{m[1]}_#{m[2]}_spec.rb", "spec/acceptance/#{m[1]}_spec.rb"] }
  watch(%r{^spec/support/(.+)\.rb$})                  { "spec" }
  watch('config/routes.rb')                           { "spec/routing" }
  watch('app/controllers/application_controller.rb')  { "spec/controllers" }
end


guard 'livereload' do
  watch(%r{app/views/.+\.(erb|haml|slim)$})
  watch(%r{app/helpers/.+\.rb})
  watch(%r{public/.+\.(css|js|html)})
  watch(%r{config/locales/.+\.yml})
  # Rails Assets Pipeline
  watch(%r{(app|vendor)(/assets/\w+/(.+\.(css|js|html|png|jpg))).*}) { |m| "/assets/#{m[3]}" }
end

这是我的spec_helper.rb

require 'rubygems'
require 'spork'
#uncomment the following line to use spork with the debugger
#require 'spork/ext/ruby-debug'

Spork.prefork do
  # Loading more in this block will cause your tests to run faster. However,
  # if you change any configuration or code from libraries loaded here, you'll
  # need to restart spork for it take effect.

  # This file is copied to spec/ when you run 'rails generate rspec:install'
  ENV["RAILS_ENV"] ||= 'test'
  require File.expand_path("../../config/environment", __FILE__)
  require 'rspec/rails'
  require 'rspec/autorun'
  require 'capybara/rspec'

  # 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 }

  # Checks for pending migrations before tests are run.
  # If you are not using ActiveRecord, you can remove this line.
  ActiveRecord::Migration.check_pending! if defined?(ActiveRecord::Migration)

  RSpec.configure do |config|

    config.use_transactional_fixtures = true
    config.infer_base_class_for_anonymous_controllers = false
    config.order = "random"

    #Devise
    config.include Devise::TestHelpers, type: :controller

    #Capybara
    config.include Capybara::DSL
  end

end

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

end

在我的.rspec中，唯一的东西是：

--color

我的Gemfile的相关部分

group :development, :test do
  gem 'rspec-rails', '~> 2.0'
  gem 'factory_girl_rails'
  gem 'guard-rspec'
  gem 'guard-livereload'
  gem 'spork-rails'
  gem 'guard-spork'
end

group :test do
  gem 'shoulda-matchers'
  gem 'capybara'
end

我注意到，如果我有守卫运行，那么保存一个文件，有时我会得到一个错误：

Could not start Spork server for rspec after 30 seconds. I will continue  
waiting for a further 60 seconds.

我不知道为什么在安装Spork之后要花这么长时间，特别是当rspec更快地通过相同的Vagrant时。有什么想法吗？

Answer 1

从Guid2.5开始有一个新的--listen-on选项：https://github.com/guard/guard/releases/tag/v2.5.0

来自警卫自述

使用Listen的网络功能从网络接收文件更改事件。这对于虚拟机(例如Vagrant)非常有用，因为虚拟机在客户操作系统上触发本机文件系统事件时有问题。 建议使用： 在主机操作系统上，您需要侦听文件系统事件，并使用侦听脚本将它们转发到VM： $ listen -f 127.0.0.1:4000 记住将VM配置为转发适当的端口，例如在Vagrantfile：config.vm.network :forwarded_port, guest: 4000, host: 4000中 然后，在客户操作系统上，侦听网络事件，但确保指定主机路径$ bundle exec guard -o '10.0.2.2:4000' -w '/projects/myproject'。