guess_spec.rb

require File.expand_path('../../../spec_helper', __FILE__)
require 'nkf'

describe "NKF.guess" do
  it "guesses encoding of a String in JIS" do
    NKF.guess("\e$B$^$D$b$H$f$-$R$m\e(B").should == NKF::JIS
  end
  it "guesses encoding of a String in EUC" do
    NKF.guess("\244\336\244\304\244\342\244\310\244\346\244\255\244\322\244\355").should == NKF::EUC
  end

  it "guesses encoding of a String in Shift-JIS" do
    NKF.guess("\202\334\202\302\202\340\202\306\202\344\202\253\202\320\202\353").should == NKF::SJIS
  end

  it "guesses encoding of a String in UTF-8" do
    NKF.guess("\xE3\x81\xBE\xE3\x81\xA4\xE3\x82\x82\xE3\x81\xA8\xE3\x82\x86\xE3\x81\x8D\xE3\x81\xB2\xE3\x82\x8D").should == NKF::UTF8
  end

  it "guesses encoding of a String in UTF-16(LE)" do
    NKF.guess("\xFF\xFE\x7E\x30\x64\x30\x82\x30\x68\x30\x86\x30\x4d\x30\x72\x30\x8d\x30").should == NKF::UTF16
  end
end


# Skip UTF-32 for now

nkf_spec.rb

require File.expand_path('../../../spec_helper', __FILE__)
require 'nkf'

describe "NKF.nkf" do
  it "encodes a String to JIS" do
    NKF.nkf('--jis','まつもとゆきひろ').should == "\e$B$^$D$b$H$f$-$R$m\e(B"
  end

  it "encodes a String to EUC" do
    NKF.nkf('--euc','まつもとゆきひろ').should == "\244\336\244\304\244\342\244\310\244\346\244\255\244\322\244\355"
  end

  it "encodes a String to Shift-JIS" do
    NKF.nkf('--sjis','まつもとゆきひろ').should == "\202\334\202\302\202\340\202\306\202\344\202\253\202\320\202\353"
  end

  it "encodes a String to UTF-8 (without BOM)" do
    NKF.nkf('--oc=UTF-8','まつもとゆきひろ').should == "\xE3\x81\xBE\xE3\x81\xA4\xE3\x82\x82\xE3\x81\xA8\xE3\x82\x86\xE3\x81\x8D\xE3\x81\xB2\xE3\x82\x8D"
  end

  it "encodes a String to UTF-16LE (with BOM)" do
    NKF.nkf('--oc=UTF-16LE-BOM','まつもとゆきひろ').should == "\xFF\xFE\x7E\x30\x64\x30\x82\x30\x68\x30\x86\x30\x4d\x30\x72\x30\x8d\x30"
  end

  it "encodes a String to UTF-16 (without BOM)" do
    NKF.nkf('--oc=UTF-16BE','まつもとゆきひろ').should == "\x30\x7E\x30\x64\x30\x82\x30\x68\x30\x86\x30\x4D\x30\x72\x30\x8D"
  end

end