rails--rails/railties/test/generators/generators_test_helper.rb

require 'abstract_unit'

module Rails
  def self.root
    @root ||= File.expand_path(File.join(File.dirname(__FILE__), '..', 'fixtures'))
  end
end
Rails.application.config.root = Rails.root
Rails.application.config.generators.templates = [File.join(Rails.root, "lib", "templates")]

require 'rails/generators'
require 'rails/generators/test_case'

require 'active_record'
require 'action_dispatch'

module GeneratorsTestHelper
  def self.included(base)
    base.class_eval do
      destination File.join(Rails.root, "tmp")
      setup :prepare_destination

      begin
        base.tests Rails::Generators.const_get(base.name.sub(/Test$/, ''))
      rescue
      end
    end
  end
end