gistfile1.rb

require 'kconv'
require 'iconv'
require 'nkf'
require 'test/unit'

class GuessEncoding < Test::Unit::TestCase
  def setup
    @euc = "うまく表示してね！".kconv(Kconv::EUC, Kconv::SJIS)
  end

  def test_guess_encoding
    tmp = NKF.guess(@euc)
    # enc = NKF.constants.find { |c| NKF.const_get(c) == tmp }
    assert_equal NKF::EUC, tmp
  end
end