require 'rubygems'
  require 'bitly4r' 

  access_token = ENV['TOKEN']
  long_url = 'http://rubyforge.org/' 

  client = Bitly4R::Client.new(:token => access_token) 

  # shorten
  short_url = client.shorten(long_url).to_s
  puts "short_url = #{short_url}" 

  # re-expand
  raise 'aww, cmon!' unless (long_url == client.expand(short_url).to_s)