Cucumber and WebRat in Selenium mode: Can't start mongrel_rails when using gem bundle

I'm using gem bundler (v.0.9.6) and Rails 2.3.5, rubygems 1.3.6 and ruby 1.8.7 (On Snow Leopard). My Gemfile looks like this:

source :rubyforge
source "http://gems.github.com"

gem "rails", "2.3.5"
gem "ruby-debug"
gem "activemerchant", :require => 'active_merchant'
gem "hpricot"
gem "nokogiri"
gem "state_machine"
gem "fastercsv"
gem "yubikey"
gem "httparty"
gem "ruby-openid"
gem "mongrel" 

group :development do 
  gem 'mongrel'
end

#teste
group :test do
  gem 'rspec'  
  gem 'rspec-rails'
  gem 'cucumber' 
  gem 'cucumber-rails'
  gem "mechanize"
  gem 'notahat-machinist', :require => 'machinist'
  gem 'faker'
  gem 'webrat'
  gem 'selenium-client'
  gem 'database_cleaner'
  gem 'fakeweb'
  gem 'mongrel' #Selenium needs this
end

So far so good. I've been using bundler successfully for a couple of weeks already. However, I started using Cucumber and WebRat in the Selenium mode to test some ajaxy features of the site, and whenever I was running the feature, WebRat was telling me that the Rails server was started, but I always got a XHR_ERROR, where Selenium couldn't find the URL. Well, it happened the server was not being started.

Then, I opened the webrat/lib/webrat/selenium/application_servers/rails.rb file and put a debugger statement in start method. Ran the feature again, when the debugger triggered, I printed the return of the start_command def, which was:

mongrel_rails start -d --chdir='/Users/fullofcaffeine/Projetos/myproject' --port=3001 --environment=test --pid /Users/fullofcaffeine/Projetos/myproject/tmp/pids/mongrel_selenium.pid 

I copied and pasted it in the console, removed the -d and & from the end, and here's the output I got:

** Rails loaded.
** Loading any Rails specific GemPlugins
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require': no such file to load -- /Users/fullofcaffeine/.bundle/ruby/1.8/gems/mongrel-1.1.5/lib/mongrel/init.rb (MissingSourceFile)
 from /Library/Ruby/Gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
 from /Library/Ruby/Gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in `new_constants_in'
 from /Library/Ruby/Gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
 from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/gem_plugin-0.2.3/lib/gem_plugin.rb:134:in `load'
 from /Library/Ruby/Site/1.8/rubygems/source_index.rb:241:in `each'
 from /Library/Ruby/Site/1.8/rubygems/source_index.rb:241:in `each'
 from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/gem_plugin-0.2.3/lib/gem_plugin.rb:112:in `load'
 from /Library/Ruby/Gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/configurator.rb:231:in `load_plugins'
 from /Library/Ruby/Gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:117:in `cloaker_'
 from /Library/Ruby/Gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/configurator.rb:149:in `call'
 from /Library/Ruby/Gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/configurator.rb:149:in `listener'
 from /Library/Ruby/Gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:99:in `cloaker_'
 from /Library/Ruby/Gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/configurator.rb:50:in `call'
 from /Library/Ruby/Gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/configurator.rb:50:in `initialize'
 from /Library/Ruby/Gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:84:in `new'
 from /Li开发者_开发技巧brary/Ruby/Gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:84:in `run'
 from /Library/Ruby/Gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/command.rb:212:in `run'
 from /Library/Ruby/Gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:281
 from /usr/bin/mongrel_rails:19:in `load'
 from /usr/bin/mongrel_rails:19

Check the path it is trying to load mongrel from: "~/.bundle/...", but mongrel is installed as a system gem. Bundle handles the loading of system gems fine for in other context, but in this particular case, I have no idea why it is failing :(.

I've tried to run "bundle install" again, and it always says:

Installing mongrel (1.1.5) from system gems

I've tried uninstalling mongrel from the system to try to make bundle to install it on ~/.bundle (as this seems the source of the error, since mongrel is being searched in this path I start mongrel_rails like above), but I just couldn't do it.

gem uninstall mongrel
ERROR:  While executing gem ... (Gem::InstallError)
    cannot uninstall, check `gem list -d mongrel`

And when I run "gem list | grep mongrel", I get:

mongrel (1.1.5)

Weird.

I just want to be able to run Cucumber and WebRat + Selenium successfully while using gem bundler, but this is driving me nuts.

Could anyone enlighten me ?

Well, I found an workaround, kind of fishy, but works:

 cp  /Library/Ruby/Gems/1.8/gems/mongrel-1.1.5/ mongrel-1.1.5

Now, if you try to:

mongrel_rails start --chdir='/Users/fullofcaffeine/Projetos/myproject' --port=3001 --environment=test --pid /Users/fullofcaffeine/Projetos/myproject/tmp/pids/mongrel_selenium.pid

It will find mongrel and start the server, you can then run the Cucumber feature that uses Selenium and it will work :)

If someone else finds out or knows anything else about this issue, please share, this might end up being a bug somewhere.

I had a similar problem, but it turned out to be mismatching versions of gems between what was in my /Users/{account}/.gems/ and what was installed in either /Library/Ruby/Gems/ (default install) or in /opt/local/lib/ruby/gems/ (the Mac Ports install). As soon as I deleted the /Users/{account}/.gems/ it all worked.

I encountered this same problem, and spent a while trying to debug it. It appears that there's some kind of interaction between Mongrel, GemPlugin and Bundler. Possible solutions include:

1. Fix GemPlugin to play nicely with Bundler 0.9.
2. Modify Mongrel to no longer use GemPlugin.
3. Modify Webrat to support a web server other than Mongrel.

Since both GemPlugin and Mongrel are looking somewhat obsolete and abandoned these days, I decided to add Thin support to Webrat based on this patch.

You can find the new patch on github, or add the following to your Gemfile:

gem 'webrat', :git => 'git://github.com/emk/webrat.git'

...and update your features/support/env.rb file accordingly:

Webrat.configure do |config|
  # Add this line.
  config.application_framework = :rails_thin

  # Your previous configuration here...
end

bundle exec mongrel_rails start ... ?

The point here is to load the rails gems from the bundle as well not from the system gemenv.

We have a similar scenario which was written up here: How to get mongrel working with bundler?

Try to locate the gems directory which the current gem executable is using and delete any residue from cache or specifications directories, that should work.