Rails + Rspec + Capybara + Selenium

gemfile

group :development, :test do
  # RSpec
  gem "rspec-rails"
  gem "factory_girl_rails"
  gem "database_cleaner"
  gem "shoulda-matchers", :git => "https://github.com/thoughtbot/shoulda-matchers.git"
  gem "capybara"

  # Spork
  gem "spork-rails"#, "> 0.9.0.rc"

  # Yard documentation
  gem "yard"
  gem "yard-rails"
  gem "rdiscount" # MarkDown dependency

  # Rcov / SimpleCov
  gem 'simplecov', :require => false, :group => :test
end

output.txt

rspec spec/integration/registration_spec.rb

Registration
home
  Should be possible to register
  Should be possible to fill the register form (FAILED - 1)

Failures:

  1) Registration Should be possible to fill the register form
     Failure/Error: find("header > p.buttons > a[data-dialogtype = 'register']").click
     Errno::EADDRNOTAVAIL:
       Can't assign requested address - bind(2)
     # (eval):2:in `find'
     # ./spec/integration/registration_spec.rb:9:in `block (2 levels) in <top (required)>'

Finished in 2.85 seconds
2 examples, 1 failure

Failed examples:

rspec ./spec/integration/registration_spec.rb:8 # Registration Should be possible to fill the register form

registration_spec.rb

require 'spec_helper'

describe "Registration" do
  it "Should be possible to register", :js => false do
    visit root_url
  end

  # This next line will fail
  it "Should be possible to fill the register form", :js => true do
      find("header > p.buttons > a[data-dialogtype = 'register']").click

      within "form#new_user" do
        fill_in "user_pseudo", :with => "a pseudo"
      end
  end
end

spec_helper.rb

require 'rubygems'
require 'spork'

Spork.prefork do
  # Configuration for code coverage
  require 'simplecov'
  SimpleCov.start do
    add_filter "/spec/"
    add_filter "/lib/tasks"
    add_filter "/config/environments"
    add_filter "/config/initializers/backtrace_silencers.rb"
    add_filter "/config/initializers/inflections.rb"
    add_filter "/config/initializers/mime_types.rb"
    add_filter "/config/initializers/secret_token.rb"
    add_filter "/config/initializers/session_store.rb"
    add_filter "/config/initializers/squeel_config.rb"
    add_filter "/config/initializers/wrap_parameters.rb"
    add_filter "/config/application.rb"
    add_filter "/config/boot.rb"
    add_filter "/config/boot.rb"
    add_filter "/config/environment.rb"
    add_filter "/config/routes.rb"
    add_filter "/db/"
    add_filter "/vendor/"

    add_group "Controllers", "app/controllers"
    add_group "Helpers", "app/helpers"
    add_group "Mailers", "app/mailers"
    add_group "Models", "app/models"
    add_group "Validators", "app/validators"
    add_group "Utils", "lib/utils"
  end

  # 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.
  ENV["RAILS_ENV"] ||= 'test'
  require File.expand_path("../../config/environment", __FILE__)
  require 'rspec/rails'
  require 'rspec/autorun'
  require 'database_cleaner'
  require 'factory_girl'
  require 'shoulda-matchers'
  require 'capybara/rspec'

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

  RSpec.configure do |config|
    config.include(MailerMacros)

    # Database cleaner configuration
    config.before(:suite) do
      DatabaseCleaner.strategy = :transaction
      DatabaseCleaner.clean_with(:truncation)
    end

    config.before(:each) do
      DatabaseCleaner.start
      reset_email
    end

    config.after(:each) do
      DatabaseCleaner.clean
    end

    # == Mock Framework
    #
    # If you prefer to use mocha, flexmock or RR, uncomment the appropriate line:
    #
    # config.mock_with :mocha
    # config.mock_with :flexmock
    # config.mock_with :rr
    config.mock_with :rspec

    # Factory girl configuration (enable shortcut syntax)
    # config.include Factory::Syntax::Methods

    # If you're not using ActiveRecord, or you'd prefer not to run each of your
    # examples within a transaction, remove the following line or assign false
    # instead of true.
    config.use_transactional_fixtures = false

    # 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
  end
end

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

  DatabaseCleaner.strategy = :truncation
  DatabaseCleaner.clean
end

trace_output.txt

rspec -b spec/integration/registration_spec.rb
No DRb server is running. Running in local process instead ...

Registration
home
  Should be possible to register
  Should be possible to fill the register form (FAILED - 1)

Failures:

  1) Registration Should be possible to fill the register form
     Failure/Error: find("header > p.buttons > a[data-dialogtype = 'register']").click
     Errno::EADDRNOTAVAIL:
       Can't assign requested address - bind(2)
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/selenium-webdriver-2.20.0/lib/selenium/webdriver/firefox/socket_lock.rb:45:in `initialize'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/selenium-webdriver-2.20.0/lib/selenium/webdriver/firefox/socket_lock.rb:45:in `new'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/selenium-webdriver-2.20.0/lib/selenium/webdriver/firefox/socket_lock.rb:45:in `can_lock?'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/selenium-webdriver-2.20.0/lib/selenium/webdriver/firefox/socket_lock.rb:31:in `lock'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/selenium-webdriver-2.20.0/lib/selenium/webdriver/firefox/socket_lock.rb:17:in `locked'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/selenium-webdriver-2.20.0/lib/selenium/webdriver/firefox/launcher.rb:32:in `launch'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/selenium-webdriver-2.20.0/lib/selenium/webdriver/firefox/bridge.rb:19:in `initialize'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/selenium-webdriver-2.20.0/lib/selenium/webdriver/common/driver.rb:31:in `new'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/selenium-webdriver-2.20.0/lib/selenium/webdriver/common/driver.rb:31:in `for'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/selenium-webdriver-2.20.0/lib/selenium/webdriver.rb:61:in `for'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/capybara-1.1.2/lib/capybara/selenium/driver.rb:15:in `browser'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/capybara-1.1.2/lib/capybara/selenium/driver.rb:52:in `find'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/capybara-1.1.2/lib/capybara/node/finders.rb:158:in `find_in_base'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/capybara-1.1.2/lib/capybara/node/finders.rb:137:in `block in first'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/capybara-1.1.2/lib/capybara/node/finders.rb:136:in `each'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/capybara-1.1.2/lib/capybara/node/finders.rb:136:in `first'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/capybara-1.1.2/lib/capybara/node/finders.rb:27:in `block in find'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/capybara-1.1.2/lib/capybara/node/base.rb:46:in `wait_until'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/capybara-1.1.2/lib/capybara/node/finders.rb:27:in `find'
     # (eval):2:in `find'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/capybara-1.1.2/lib/capybara/dsl.rb:161:in `find'
     # ./spec/integration/registration_spec.rb:9:in `block (2 levels) in <top (required)>'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/rspec-core-2.8.0/lib/rspec/core/example.rb:80:in `instance_eval'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/rspec-core-2.8.0/lib/rspec/core/example.rb:80:in `block in run'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/rspec-core-2.8.0/lib/rspec/core/example.rb:173:in `with_around_hooks'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/rspec-core-2.8.0/lib/rspec/core/example.rb:77:in `run'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/rspec-core-2.8.0/lib/rspec/core/example_group.rb:355:in `block in run_examples'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/rspec-core-2.8.0/lib/rspec/core/example_group.rb:351:in `map'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/rspec-core-2.8.0/lib/rspec/core/example_group.rb:351:in `run_examples'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/rspec-core-2.8.0/lib/rspec/core/example_group.rb:337:in `run'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/rspec-core-2.8.0/lib/rspec/core/command_line.rb:28:in `block (2 levels) in run'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/rspec-core-2.8.0/lib/rspec/core/command_line.rb:28:in `map'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/rspec-core-2.8.0/lib/rspec/core/command_line.rb:28:in `block in run'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/rspec-core-2.8.0/lib/rspec/core/reporter.rb:34:in `report'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/rspec-core-2.8.0/lib/rspec/core/command_line.rb:25:in `run'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/rspec-core-2.8.0/lib/rspec/core/runner.rb:80:in `run_in_process'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/rspec-core-2.8.0/lib/rspec/core/runner.rb:66:in `rescue in run'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/rspec-core-2.8.0/lib/rspec/core/runner.rb:62:in `run'
     # /Users/prevole/.rvm/gems/ruby-1.9.2-p290@rails31/gems/rspec-core-2.8.0/lib/rspec/core/runner.rb:10:in `block in autorun'

Finished in 2.81 seconds
2 examples, 1 failure

Failed examples:

rspec ./spec/integration/registration_spec.rb:8 # Registration Should be possible to fill the register form