config/application.rb for include rspec, factory_girl and haml (in rails 3.1)

Gemfile

group :test do
  gem 'rspec-rails'
  gem 'database_cleaner'
  gem 'factory_girl_rails', '~> 1.2'
  gem 'capybara'
end

# For support simple_form 2 use:
gem 'simple_form', :git => 'git://github.com/plataformatec/simple_form.git'

gistfile1.rb

config.generators do |g|
  g.test_framework      :rspec, :view_specs=> false, :fixture => true
  g.fixture_replacement :factory_girl, :dir => 'spec/factories'
  #g.form_builder        :simple_form
  g.template_engine     :haml
end