node/test/parallel/test-punycode.js

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'use strict';
require('../common');
const punycode = require('punycode');
const assert = require('assert');

assert.strictEqual(punycode.encode('ü'), 'tda');
assert.strictEqual(punycode.encode('Goethe'), 'Goethe-');
assert.strictEqual(punycode.encode('Bücher'), 'Bcher-kva');
assert.strictEqual(
  punycode.encode(
    'Willst du die Blüthe des frühen, die Früchte des späteren Jahres'
  ),
  'Willst du die Blthe des frhen, die Frchte des spteren Jahres-x9e96lkal'
);
assert.strictEqual(punycode.encode('日本語'), 'wgv71a119e');

assert.strictEqual(punycode.decode('tda'), 'ü');
assert.strictEqual(punycode.decode('Goethe-'), 'Goethe');
assert.strictEqual(punycode.decode('Bcher-kva'), 'Bücher');
assert.strictEqual(
  punycode.decode(
    'Willst du die Blthe des frhen, die Frchte des spteren Jahres-x9e96lkal'
  ),
  'Willst du die Blüthe des frühen, die Früchte des späteren Jahres'
);
assert.strictEqual(punycode.decode('wgv71a119e'), '日本語');
assert.throws(() => {
  punycode.decode(' ');
}, /^RangeError: Invalid input$/);
assert.throws(() => {
  punycode.decode('α-');
}, /^RangeError: Illegal input >= 0x80 \(not a basic code point\)$/);
assert.throws(() => {
  punycode.decode('あ');
}, /^RangeError: Overflow: input needs wider integers to process$/);

// http://tools.ietf.org/html/rfc3492#section-7.1
const tests = [
  // (A) Arabic (Egyptian)
  {
    encoded: 'egbpdaj6bu4bxfgehfvwxn',
    decoded: '\u0644\u064A\u0647\u0645\u0627\u0628\u062A\u0643\u0644\u0645' +
      '\u0648\u0634\u0639\u0631\u0628\u064A\u061F'
  },

  // (B) Chinese (simplified)
  {
    encoded: 'ihqwcrb4cv8a8dqg056pqjye',
    decoded: '\u4ED6\u4EEC\u4E3A\u4EC0\u4E48\u4E0D\u8BF4\u4E2D\u6587'
  },

  // (C) Chinese (traditional)
  {
    encoded: 'ihqwctvzc91f659drss3x8bo0yb',
    decoded: '\u4ED6\u5011\u7232\u4EC0\u9EBD\u4E0D\u8AAA\u4E2D\u6587'
  },

  // (D) Czech: Pro<ccaron>prost<ecaron>nemluv<iacute><ccaron>esky
  {
    encoded: 'Proprostnemluvesky-uyb24dma41a',
    decoded: '\u0050\u0072\u006F\u010D\u0070\u0072\u006F\u0073\u0074\u011B' +
      '\u006E\u0065\u006D\u006C\u0075\u0076\u00ED\u010D\u0065\u0073\u006B\u0079'
  },

  // (E) Hebrew
  {
    encoded: '4dbcagdahymbxekheh6e0a7fei0b',
    decoded: '\u05DC\u05DE\u05D4\u05D4\u05DD\u05E4\u05E9\u05D5\u05D8\u05DC' +
      '\u05D0\u05DE\u05D3\u05D1\u05E8\u05D9\u05DD\u05E2\u05D1\u05E8\u05D9\u05EA'
  },

  // (F) Hindi (Devanagari)
  {
    encoded: 'i1baa7eci9glrd9b2ae1bj0hfcgg6iyaf8o0a1dig0cd',
    decoded: '\u092F\u0939\u0932\u094B\u0917\u0939\u093F\u0928\u094D\u0926' +
      '\u0940\u0915\u094D\u092F\u094B\u0902\u0928\u0939\u0940\u0902\u092C' +
      '\u094B\u0932\u0938\u0915\u0924\u0947\u0939\u0948\u0902'
  },

  // (G) Japanese (kanji and hiragana)
  {
    encoded: 'n8jok5ay5dzabd5bym9f0cm5685rrjetr6pdxa',
    decoded: '\u306A\u305C\u307F\u3093\u306A\u65E5\u672C\u8A9E\u3092\u8A71' +
      '\u3057\u3066\u304F\u308C\u306A\u3044\u306E\u304B'
  },

  // (H) Korean (Hangul syllables)
  {
    encoded: '989aomsvi5e83db1d2a355cv1e0vak1dwrv93d5xbh15a0dt30a5jpsd879' +
      'ccm6fea98c',
    decoded: '\uC138\uACC4\uC758\uBAA8\uB4E0\uC0AC\uB78C\uB4E4\uC774\uD55C' +
      '\uAD6D\uC5B4\uB97C\uC774\uD574\uD55C\uB2E4\uBA74\uC5BC\uB9C8\uB098' +
      '\uC88B\uC744\uAE4C'
  },

  // (I) Russian (Cyrillic)
  {
    encoded: 'b1abfaaepdrnnbgefbadotcwatmq2g4l',
    decoded: '\u043F\u043E\u0447\u0435\u043C\u0443\u0436\u0435\u043E\u043D' +
      '\u0438\u043D\u0435\u0433\u043E\u0432\u043E\u0440\u044F\u0442\u043F' +
      '\u043E\u0440\u0443\u0441\u0441\u043A\u0438'
  },

  // (J) Spanish: Porqu<eacute>nopuedensimplementehablarenEspa<ntilde>ol
  {
    encoded: 'PorqunopuedensimplementehablarenEspaol-fmd56a',
    decoded: '\u0050\u006F\u0072\u0071\u0075\u00E9\u006E\u006F\u0070\u0075' +
      '\u0065\u0064\u0065\u006E\u0073\u0069\u006D\u0070\u006C\u0065\u006D' +
      '\u0065\u006E\u0074\u0065\u0068\u0061\u0062\u006C\u0061\u0072\u0065' +
      '\u006E\u0045\u0073\u0070\u0061\u00F1\u006F\u006C'
  },

  // (K) Vietnamese: T<adotbelow>isaoh<odotbelow>kh<ocirc>ngth
  // <ecirchookabove>ch<ihookabove>n<oacute>iti<ecircacute>ngVi<ecircdotbelow>t
  {
    encoded: 'TisaohkhngthchnitingVit-kjcr8268qyxafd2f1b9g',
    decoded: '\u0054\u1EA1\u0069\u0073\u0061\u006F\u0068\u1ECD\u006B\u0068' +
      '\u00F4\u006E\u0067\u0074\u0068\u1EC3\u0063\u0068\u1EC9\u006E\u00F3' +
      '\u0069\u0074\u0069\u1EBF\u006E\u0067\u0056\u0069\u1EC7\u0074'
  },

  // (L) 3<nen>B<gumi><kinpachi><sensei>
  {
    encoded: '3B-ww4c5e180e575a65lsy2b',
    decoded: '\u0033\u5E74\u0042\u7D44\u91D1\u516B\u5148\u751F'
  },

  // (M) <amuro><namie>-with-SUPER-MONKEYS
  {
    encoded: '-with-SUPER-MONKEYS-pc58ag80a8qai00g7n9n',
    decoded: '\u5B89\u5BA4\u5948\u7F8E\u6075\u002D\u0077\u0069\u0074\u0068' +
      '\u002D\u0053\u0055\u0050\u0045\u0052\u002D\u004D\u004F\u004E\u004B' +
      '\u0045\u0059\u0053'
  },

  // (N) Hello-Another-Way-<sorezore><no><basho>
  {
    encoded: 'Hello-Another-Way--fc4qua05auwb3674vfr0b',
    decoded: '\u0048\u0065\u006C\u006C\u006F\u002D\u0041\u006E\u006F\u0074' +
      '\u0068\u0065\u0072\u002D\u0057\u0061\u0079\u002D\u305D\u308C\u305E' +
      '\u308C\u306E\u5834\u6240'
  },

  // (O) <hitotsu><yane><no><shita>2
  {
    encoded: '2-u9tlzr9756bt3uc0v',
    decoded: '\u3072\u3068\u3064\u5C4B\u6839\u306E\u4E0B\u0032'
  },

  // (P) Maji<de>Koi<suru>5<byou><mae>
  {
    encoded: 'MajiKoi5-783gue6qz075azm5e',
    decoded: '\u004D\u0061\u006A\u0069\u3067\u004B\u006F\u0069\u3059\u308B' +
      '\u0035\u79D2\u524D'
  },

  // (Q) <pafii>de<runba>
  {
    encoded: 'de-jg4avhby1noc0d',
    decoded: '\u30D1\u30D5\u30A3\u30FC\u0064\u0065\u30EB\u30F3\u30D0'
  },

  // (R) <sono><supiido><de>
  {
    encoded: 'd9juau41awczczp',
    decoded: '\u305D\u306E\u30B9\u30D4\u30FC\u30C9\u3067'
  },

  // (S) -> $1.00 <-
  {
    encoded: '-> $1.00 <--',
    decoded: '\u002D\u003E\u0020\u0024\u0031\u002E\u0030\u0030\u0020\u003C' +
      '\u002D'
  }
];

let errors = 0;
const handleError = (error, name) => {
  console.error(
    'FAIL: %s expected %j, got %j',
    name,
    error.expected,
    error.actual
  );
  errors++;
};

const regexNonASCII = /[^\x20-\x7E]/;
const testBattery = {
  encode: (test) => assert.strictEqual(
    punycode.encode(test.decoded),
    test.encoded
  ),
  decode: (test) => assert.strictEqual(
    punycode.decode(test.encoded),
    test.decoded
  ),
  toASCII: (test) => assert.strictEqual(
    punycode.toASCII(test.decoded),
    regexNonASCII.test(test.decoded) ?
      `xn--${test.encoded}` :
      test.decoded
  ),
  toUnicode: (test) => assert.strictEqual(
    punycode.toUnicode(
      regexNonASCII.test(test.decoded) ?
        `xn--${test.encoded}` :
        test.decoded
    ),
    regexNonASCII.test(test.decoded) ?
      test.decoded.toLowerCase() :
      test.decoded
  )
};

tests.forEach((testCase) => {
  Object.keys(testBattery).forEach((key) => {
    try {
      testBattery[key](testCase);
    } catch (error) {
      handleError(error, key);
    }
  });
});

// BMP code point
assert.strictEqual(punycode.ucs2.encode([0x61]), 'a');
// supplementary code point (surrogate pair)
assert.strictEqual(punycode.ucs2.encode([0x1D306]), '\uD834\uDF06');
// high surrogate
assert.strictEqual(punycode.ucs2.encode([0xD800]), '\uD800');
// high surrogate followed by non-surrogates
assert.strictEqual(punycode.ucs2.encode([0xD800, 0x61, 0x62]), '\uD800ab');
// low surrogate
assert.strictEqual(punycode.ucs2.encode([0xDC00]), '\uDC00');
// low surrogate followed by non-surrogates
assert.strictEqual(punycode.ucs2.encode([0xDC00, 0x61, 0x62]), '\uDC00ab');

assert.strictEqual(errors, 0);

// test map domain
assert.strictEqual(punycode.toASCII('Bücher@日本語.com'),
                   'Bücher@xn--wgv71a119e.com');
assert.strictEqual(punycode.toUnicode('Bücher@xn--wgv71a119e.com'),
                   'Bücher@日本語.com');