app_builder.rb

class AppBuilder < Rails::AppBuilder
  include Thor::Actions
  include Thor::Shell

  def test
    append_test_gems
    rspec_install
    spork_init
    guard_init
  end

  def rspec_install
    say("Installing rspec from generator", :yellow)
    `rails generate rspec:install`

    create_file 'spec/lib/example_spec.rb', <<-RUBY, __FILE__, __LINE__ + 1
      require File.expand_path(File.join(File.dirname(__FILE__), '..', 'spec_helper'))

      describe "example_spec" do
        pending
      end
    RUBY
  end
  
  def spork_init
    `spork rspec --bootstrap`
  end
  
  def guard_init
    `guard init`
  end

  def append_test_gems
    @generator.append_file 'Gemfile',  <<-RUBY, __FILE__, __LINE__ + 1
      group :test do
        gem 'rspec-rails', '~> 2.12.2'
        gem 'guard-rspec', '~> 2.4.0'
        gem 'guard-spork', '~> 1.4.2'
        gem 'database_cleaner', '0.5.2'
        gem 'spork', '0.8.4'
      end
    RUBY
  end
end