# File lib/more/facets/module/attr_tester.rb, line 14
  def attr_tester(*args)
    code, made = '', []
    args.each do |a|
      code << %{
        def #{a}?(truth=nil)
          @#{a} ? truth || @#{a} : @#{a}
        end
      }
      made << "#{a}?".to_sym
    end
    module_eval code
    made
  end