unicode = "他们为什么不说中文",
      punycode = "xn--ihqwcrb4cv8a8dqg056pqjye",
    )

    // (C) Chinese (traditional)
    testEncodeDecode(
      unicode = "他們爲什麽不說中文",
      punycode = "xn--ihqwctvzc91f659drss3x8bo0yb",
    )

    // (D) Czech
    testEncodeDecode(
      unicode = "Pročprostěnemluvíčesky",
      punycode = "xn--Proprostnemluvesky-uyb24dma41a",
    )

    // (E) Hebrew:
    testEncodeDecode(

		"\u4ED6\u4EEC\u4E3A\u4EC0\u4E48\u4E0D\u8BF4\u4E2D\u6587",
		"ihqwcrb4cv8a8dqg056pqjye",
	},
	{
		// (C) Chinese (traditional).
		"\u4ED6\u5011\u7232\u4EC0\u9EBD\u4E0D\u8AAA\u4E2D\u6587",
		"ihqwctvzc91f659drss3x8bo0yb",
	},
	{
		// (D) Czech.
		"\u0050\u0072\u006F\u010D\u0070\u0072\u006F\u0073\u0074" +
			"\u011B\u006E\u0065\u006D\u006C\u0075\u0076\u00ED\u010D" +
			"\u0065\u0073\u006B\u0079",