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// Copyright 2012 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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var punycodeTestCases = [...]struct {
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{"bücher", "bcher-kva"},
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{"Hello世界", "Hello-ck1hg65u"},
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// The test cases below come from RFC 3492 section 7.1 with Errata 3026.
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// (A) Arabic (Egyptian).
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"\u0644\u064A\u0647\u0645\u0627\u0628\u062A\u0643\u0644" +
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"\u0645\u0648\u0634\u0639\u0631\u0628\u064A\u061F",
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"egbpdaj6bu4bxfgehfvwxn",
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// (B) Chinese (simplified).
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"\u4ED6\u4EEC\u4E3A\u4EC0\u4E48\u4E0D\u8BF4\u4E2D\u6587",
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"ihqwcrb4cv8a8dqg056pqjye",
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// (C) Chinese (traditional).
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"\u4ED6\u5011\u7232\u4EC0\u9EBD\u4E0D\u8AAA\u4E2D\u6587",
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"ihqwctvzc91f659drss3x8bo0yb",
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"\u0050\u0072\u006F\u010D\u0070\u0072\u006F\u0073\u0074" +
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"\u011B\u006E\u0065\u006D\u006C\u0075\u0076\u00ED\u010D" +
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"\u0065\u0073\u006B\u0079",
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"Proprostnemluvesky-uyb24dma41a",
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"\u05DC\u05DE\u05D4\u05D4\u05DD\u05E4\u05E9\u05D5\u05D8" +
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"\u05DC\u05D0\u05DE\u05D3\u05D1\u05E8\u05D9\u05DD\u05E2" +
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"\u05D1\u05E8\u05D9\u05EA",
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"4dbcagdahymbxekheh6e0a7fei0b",
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// (F) Hindi (Devanagari).
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"\u092F\u0939\u0932\u094B\u0917\u0939\u093F\u0928\u094D" +
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"\u0926\u0940\u0915\u094D\u092F\u094B\u0902\u0928\u0939" +
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"\u0940\u0902\u092C\u094B\u0932\u0938\u0915\u0924\u0947" +
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"i1baa7eci9glrd9b2ae1bj0hfcgg6iyaf8o0a1dig0cd",
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// (G) Japanese (kanji and hiragana).
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"\u306A\u305C\u307F\u3093\u306A\u65E5\u672C\u8A9E\u3092" +
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"\u8A71\u3057\u3066\u304F\u308C\u306A\u3044\u306E\u304B",
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"n8jok5ay5dzabd5bym9f0cm5685rrjetr6pdxa",
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// (H) Korean (Hangul syllables).
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"\uC138\uACC4\uC758\uBAA8\uB4E0\uC0AC\uB78C\uB4E4\uC774" +
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"\uD55C\uAD6D\uC5B4\uB97C\uC774\uD574\uD55C\uB2E4\uBA74" +
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"\uC5BC\uB9C8\uB098\uC88B\uC744\uAE4C",
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"989aomsvi5e83db1d2a355cv1e0vak1dwrv93d5xbh15a0dt30a5j" +
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// (I) Russian (Cyrillic).
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"\u043F\u043E\u0447\u0435\u043C\u0443\u0436\u0435\u043E" +
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"\u043D\u0438\u043D\u0435\u0433\u043E\u0432\u043E\u0440" +
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"\u044F\u0442\u043F\u043E\u0440\u0443\u0441\u0441\u043A" +
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"b1abfaaepdrnnbgefbadotcwatmq2g4l",
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"\u0050\u006F\u0072\u0071\u0075\u00E9\u006E\u006F\u0070" +
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"\u0075\u0065\u0064\u0065\u006E\u0073\u0069\u006D\u0070" +
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"\u006C\u0065\u006D\u0065\u006E\u0074\u0065\u0068\u0061" +
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"\u0062\u006C\u0061\u0072\u0065\u006E\u0045\u0073\u0070" +
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"\u0061\u00F1\u006F\u006C",
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"PorqunopuedensimplementehablarenEspaol-fmd56a",
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"\u0054\u1EA1\u0069\u0073\u0061\u006F\u0068\u1ECD\u006B" +
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"\u0068\u00F4\u006E\u0067\u0074\u0068\u1EC3\u0063\u0068" +
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"\u1EC9\u006E\u00F3\u0069\u0074\u0069\u1EBF\u006E\u0067" +
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"\u0056\u0069\u1EC7\u0074",
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"TisaohkhngthchnitingVit-kjcr8268qyxafd2f1b9g",
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// (L) 3<nen>B<gumi><kinpachi><sensei>.
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"\u0033\u5E74\u0042\u7D44\u91D1\u516B\u5148\u751F",
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"3B-ww4c5e180e575a65lsy2b",
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// (M) <amuro><namie>-with-SUPER-MONKEYS.
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"\u5B89\u5BA4\u5948\u7F8E\u6075\u002D\u0077\u0069\u0074" +
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"\u0068\u002D\u0053\u0055\u0050\u0045\u0052\u002D\u004D" +
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"\u004F\u004E\u004B\u0045\u0059\u0053",
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"-with-SUPER-MONKEYS-pc58ag80a8qai00g7n9n",
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// (N) Hello-Another-Way-<sorezore><no><basho>.
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"\u0048\u0065\u006C\u006C\u006F\u002D\u0041\u006E\u006F" +
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"\u0074\u0068\u0065\u0072\u002D\u0057\u0061\u0079\u002D" +
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"\u305D\u308C\u305E\u308C\u306E\u5834\u6240",
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"Hello-Another-Way--fc4qua05auwb3674vfr0b",
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// (O) <hitotsu><yane><no><shita>2.
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"\u3072\u3068\u3064\u5C4B\u6839\u306E\u4E0B\u0032",
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"2-u9tlzr9756bt3uc0v",
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// (P) Maji<de>Koi<suru>5<byou><mae>
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"\u004D\u0061\u006A\u0069\u3067\u004B\u006F\u0069\u3059" +
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"\u308B\u0035\u79D2\u524D",
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"MajiKoi5-783gue6qz075azm5e",
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// (Q) <pafii>de<runba>
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"\u30D1\u30D5\u30A3\u30FC\u0064\u0065\u30EB\u30F3\u30D0",
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// (R) <sono><supiido><de>
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"\u305D\u306E\u30B9\u30D4\u30FC\u30C9\u3067",
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"\u002D\u003E\u0020\u0024\u0031\u002E\u0030\u0030\u0020" +
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func TestPunycode(t *testing.T) {
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for _, tc := range punycodeTestCases {
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if got, err := decode(tc.encoded); err != nil {
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t.Errorf("decode(%q): %v", tc.encoded, err)
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} else if got != tc.s {
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t.Errorf("decode(%q): got %q, want %q", tc.encoded, got, tc.s)
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if got, err := encode("", tc.s); err != nil {
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t.Errorf(`encode("", %q): %v`, tc.s, err)
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} else if got != tc.encoded {
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t.Errorf(`encode("", %q): got %q, want %q`, tc.s, got, tc.encoded)
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var punycodeErrorTestCases = [...]string{
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"decode -", // A sole '-' is invalid.
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"decode foo\x00bar", // '\x00' is not in [0-9A-Za-z].
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"decode foo#bar", // '#' is not in [0-9A-Za-z].
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"decode foo\u00A3bar", // '\u00A3' is not in [0-9A-Za-z].
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"decode 9", // "9a" decodes to codepoint \u00A3; "9" is truncated.
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"decode 99999a", // "99999a" decodes to codepoint \U0048A3C1, which is > \U0010FFFF.
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"decode 9999999999a", // "9999999999a" overflows the int32 calculation.
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"encode " + strings.Repeat("x", 65536) + "\uff00", // int32 overflow.
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func TestPunycodeErrors(t *testing.T) {
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for _, tc := range punycodeErrorTestCases {
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case strings.HasPrefix(tc, "decode "):
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_, err = decode(tc[7:])
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case strings.HasPrefix(tc, "encode "):
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_, err = encode("", tc[7:])
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tc = tc[:100] + "..." + tc[len(tc)-100:]
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t.Errorf("no error for %s", tc)
added
removed
src/golang.org/x/net/idna/punycode_test.go
