cucumber.yml

default: -r features/support/env.rb -r features/support/plain.rb -r features/step_definitions features/plain
selenium: -r features/support/env.rb -r features/support/enhanced.rb -r features/step_definitions features/enhanced

enhanced.rb

# see http://wiki.github.com/aslakhellesoy/cucumber/setting-up-selenium for help
require 'spec/expectations'
require 'selenium'
require 'webrat'

Webrat.configure do |config|
  config.mode = :selenium
  # Selenium defaults to using the selenium environment. Use the following to override this.
  config.application_environment = :test
end


require 'database_cleaner'
DatabaseCleaner.strategy = :truncation

Before do
  # truncating the database tables here, since transactional fixtures
  # can not be used with selenium
  DatabaseCleaner.clean
end

env.rb

ENV["RAILS_ENV"] = "test"

# Sets up the Rails environment for Cucumber
require File.expand_path(File.dirname(__FILE__) + '/../../config/environment')

require 'cucumber/rails/world'
require 'cucumber/formatters/unicode' # Comment out this line if you don't want Cucumber Unicode support
# Comment out the next two lines if you're not using RSpec's matchers (should / should_not) in your steps.
require 'cucumber/rails/rspec'
require 'webrat/rspec-rails'

require 'webrat'
Webrat.configure do |config|
  config.mode = :rails
end

require 'factory_girl'
require File.expand_path(File.dirname(__FILE__) + '../../../test/factories')

plain.rb

require 'database_cleaner'

# truncate your tables here if you are using the same database as selenium, since selenium doesn't use transactional fixtures
DatabaseCleaner.strategy = :truncation
DatabaseCleaner.clean
Cucumber::Rails.use_transactional_fixtures