ruby-on-rails - cucumber 在没有 spork 的情况下工作正常，但是 spork 给了我 "uninitialized constant Cucumber::Rails"

Question

我现有的 rspecs 和 Cucumber 功能都运行良好。

我正在安装 spork(实际上是 spork-rails)以提高重新运行速度。

我有 spork 的 rspec 运行良好。

我刚刚按照说明修改了 env.rb(与 spec_helper.rb 的 mod 非常相似)，但我得到了 uninitialized constant Cucumber::Rails当我尝试运行时 bundle exec cucubmer --drb .

顺便说一下，R​​ails 3.2

有任何想法吗？

这是我的 env.rb:

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


if Spork.using_spork?
  Spork.prefork do

    require 'rails'
    require 'cucumber/rails'

    Capybara.default_selector = :css

    begin
      DatabaseCleaner.strategy = :transaction
    rescue NameError
      raise "You need to add database_cleaner to your Gemfile (in the :test group) if you wish to use it."
    end    

  end

  Spork.each_run do
    # This code will be run each time you run your specs.
    require 'cucumber/rails'
    Cucumber::Rails::Database.javascript_strategy = :truncation

    ActionController::Base.allow_rescue = false


    module NavigationHelpers
      def path_to(page_name)
        case page_name

        when /the home page/
          root_path
        # Add more page name => path mappings here
        else
          if path = match_rails_path_for(page_name)
            path
          else
            raise "Can't find mapping from \"#{page_name}\" to a path.\n" +
            "Now, go and add a mapping in features/support/paths.rb"
          end
        end
      end

      def match_rails_path_for(page_name)
        if page_name.match(/the (.*) page/)
          return send "#{$1.gsub(" ", "_")}_path" rescue nil
        end
      end
    end

    World(NavigationHelpers)  
  end
else

  #omitted
end

Answer 1

记下我为解决此问题所做的工作，以供将来引用。最后，我认为在 Gemfile 中稍微错误地引用了 cucumber rails 是一个奇怪的症状。

我也收到错误说:

WARNING: Cucumber-rails required outside of env.rb. 
The rest of loading is being defered until env.rb is called. 
To avoid this warning, move 'gem cucumber-rails' under only
group :test in your Gemfile 

按照 https://github.com/cucumber/cucumber/issues/249 中的说明进行操作，我通过在我的 Gemfile 中添加 require: false 来解决这个问题，如下所示:

group :test do
  gem 'cucumber-rails', require:false
  #....
end