vendor/golang.org/x/text/internal/export/idna/punycode_test.go

   1 // Copyright 2016 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 package idna
   6
   7 import (
   8         "strings"
   9         "testing"
  10 )
  11
  12 var punycodeTestCases = [...]struct {
  13         s, encoded string
  14 }{
  15         {"", ""},
  16         {"-", "--"},
  17         {"-a", "-a-"},
  18         {"-a-", "-a--"},
  19         {"a", "a-"},
  20         {"a-", "a--"},
  21         {"a-b", "a-b-"},
  22         {"books", "books-"},
  23         {"bücher", "bcher-kva"},
  24         {"Hello世界", "Hello-ck1hg65u"},
  25         {"ü", "tda"},
  26         {"üý", "tdac"},
  27
  28         // The test cases below come from RFC 3492 section 7.1 with Errata 3026.
  29         {
  30                 // (A) Arabic (Egyptian).
  31                 "\u0644\u064A\u0647\u0645\u0627\u0628\u062A\u0643\u0644" +
  32                         "\u0645\u0648\u0634\u0639\u0631\u0628\u064A\u061F",
  33                 "egbpdaj6bu4bxfgehfvwxn",
  34         },
  35         {
  36                 // (B) Chinese (simplified).
  37                 "\u4ED6\u4EEC\u4E3A\u4EC0\u4E48\u4E0D\u8BF4\u4E2D\u6587",
  38                 "ihqwcrb4cv8a8dqg056pqjye",
  39         },
  40         {
  41                 // (C) Chinese (traditional).
  42                 "\u4ED6\u5011\u7232\u4EC0\u9EBD\u4E0D\u8AAA\u4E2D\u6587",
  43                 "ihqwctvzc91f659drss3x8bo0yb",
  44         },
  45         {
  46                 // (D) Czech.
  47                 "\u0050\u0072\u006F\u010D\u0070\u0072\u006F\u0073\u0074" +
  48                         "\u011B\u006E\u0065\u006D\u006C\u0075\u0076\u00ED\u010D" +
  49                         "\u0065\u0073\u006B\u0079",
  50                 "Proprostnemluvesky-uyb24dma41a",
  51         },
  52         {
  53                 // (E) Hebrew.
  54                 "\u05DC\u05DE\u05D4\u05D4\u05DD\u05E4\u05E9\u05D5\u05D8" +
  55                         "\u05DC\u05D0\u05DE\u05D3\u05D1\u05E8\u05D9\u05DD\u05E2" +
  56                         "\u05D1\u05E8\u05D9\u05EA",
  57                 "4dbcagdahymbxekheh6e0a7fei0b",
  58         },
  59         {
  60                 // (F) Hindi (Devanagari).
  61                 "\u092F\u0939\u0932\u094B\u0917\u0939\u093F\u0928\u094D" +
  62                         "\u0926\u0940\u0915\u094D\u092F\u094B\u0902\u0928\u0939" +
  63                         "\u0940\u0902\u092C\u094B\u0932\u0938\u0915\u0924\u0947" +
  64                         "\u0939\u0948\u0902",
  65                 "i1baa7eci9glrd9b2ae1bj0hfcgg6iyaf8o0a1dig0cd",
  66         },
  67         {
  68                 // (G) Japanese (kanji and hiragana).
  69                 "\u306A\u305C\u307F\u3093\u306A\u65E5\u672C\u8A9E\u3092" +
  70                         "\u8A71\u3057\u3066\u304F\u308C\u306A\u3044\u306E\u304B",
  71                 "n8jok5ay5dzabd5bym9f0cm5685rrjetr6pdxa",
  72         },
  73         {
  74                 // (H) Korean (Hangul syllables).
  75                 "\uC138\uACC4\uC758\uBAA8\uB4E0\uC0AC\uB78C\uB4E4\uC774" +
  76                         "\uD55C\uAD6D\uC5B4\uB97C\uC774\uD574\uD55C\uB2E4\uBA74" +
  77                         "\uC5BC\uB9C8\uB098\uC88B\uC744\uAE4C",
  78                 "989aomsvi5e83db1d2a355cv1e0vak1dwrv93d5xbh15a0dt30a5j" +
  79                         "psd879ccm6fea98c",
  80         },
  81         {
  82                 // (I) Russian (Cyrillic).
  83                 "\u043F\u043E\u0447\u0435\u043C\u0443\u0436\u0435\u043E" +
  84                         "\u043D\u0438\u043D\u0435\u0433\u043E\u0432\u043E\u0440" +
  85                         "\u044F\u0442\u043F\u043E\u0440\u0443\u0441\u0441\u043A" +
  86                         "\u0438",
  87                 "b1abfaaepdrnnbgefbadotcwatmq2g4l",
  88         },
  89         {
  90                 // (J) Spanish.
  91                 "\u0050\u006F\u0072\u0071\u0075\u00E9\u006E\u006F\u0070" +
  92                         "\u0075\u0065\u0064\u0065\u006E\u0073\u0069\u006D\u0070" +
  93                         "\u006C\u0065\u006D\u0065\u006E\u0074\u0065\u0068\u0061" +
  94                         "\u0062\u006C\u0061\u0072\u0065\u006E\u0045\u0073\u0070" +
  95                         "\u0061\u00F1\u006F\u006C",
  96                 "PorqunopuedensimplementehablarenEspaol-fmd56a",
  97         },
  98         {
  99                 // (K) Vietnamese.
 100                 "\u0054\u1EA1\u0069\u0073\u0061\u006F\u0068\u1ECD\u006B" +
 101                         "\u0068\u00F4\u006E\u0067\u0074\u0068\u1EC3\u0063\u0068" +
 102                         "\u1EC9\u006E\u00F3\u0069\u0074\u0069\u1EBF\u006E\u0067" +
 103                         "\u0056\u0069\u1EC7\u0074",
 104                 "TisaohkhngthchnitingVit-kjcr8268qyxafd2f1b9g",
 105         },
 106         {
 107                 // (L) 3<nen>B<gumi><kinpachi><sensei>.
 108                 "\u0033\u5E74\u0042\u7D44\u91D1\u516B\u5148\u751F",
 109                 "3B-ww4c5e180e575a65lsy2b",
 110         },
 111         {
 112                 // (M) <amuro><namie>-with-SUPER-MONKEYS.
 113                 "\u5B89\u5BA4\u5948\u7F8E\u6075\u002D\u0077\u0069\u0074" +
 114                         "\u0068\u002D\u0053\u0055\u0050\u0045\u0052\u002D\u004D" +
 115                         "\u004F\u004E\u004B\u0045\u0059\u0053",
 116                 "-with-SUPER-MONKEYS-pc58ag80a8qai00g7n9n",
 117         },
 118         {
 119                 // (N) Hello-Another-Way-<sorezore><no><basho>.
 120                 "\u0048\u0065\u006C\u006C\u006F\u002D\u0041\u006E\u006F" +
 121                         "\u0074\u0068\u0065\u0072\u002D\u0057\u0061\u0079\u002D" +
 122                         "\u305D\u308C\u305E\u308C\u306E\u5834\u6240",
 123                 "Hello-Another-Way--fc4qua05auwb3674vfr0b",
 124         },
 125         {
 126                 // (O) <hitotsu><yane><no><shita>2.
 127                 "\u3072\u3068\u3064\u5C4B\u6839\u306E\u4E0B\u0032",
 128                 "2-u9tlzr9756bt3uc0v",
 129         },
 130         {
 131                 // (P) Maji<de>Koi<suru>5<byou><mae>
 132                 "\u004D\u0061\u006A\u0069\u3067\u004B\u006F\u0069\u3059" +
 133                         "\u308B\u0035\u79D2\u524D",
 134                 "MajiKoi5-783gue6qz075azm5e",
 135         },
 136         {
 137                 // (Q) <pafii>de<runba>
 138                 "\u30D1\u30D5\u30A3\u30FC\u0064\u0065\u30EB\u30F3\u30D0",
 139                 "de-jg4avhby1noc0d",
 140         },
 141         {
 142                 // (R) <sono><supiido><de>
 143                 "\u305D\u306E\u30B9\u30D4\u30FC\u30C9\u3067",
 144                 "d9juau41awczczp",
 145         },
 146         {
 147                 // (S) -> $1.00 <-
 148                 "\u002D\u003E\u0020\u0024\u0031\u002E\u0030\u0030\u0020" +
 149                         "\u003C\u002D",
 150                 "-> $1.00 <--",
 151         },
 152 }
 153
 154 func TestPunycode(t *testing.T) {
 155         for _, tc := range punycodeTestCases {
 156                 if got, err := decode(tc.encoded); err != nil {
 157                         t.Errorf("decode(%q): %v", tc.encoded, err)
 158                 } else if got != tc.s {
 159                         t.Errorf("decode(%q): got %q, want %q", tc.encoded, got, tc.s)
 160                 }
 161
 162                 if got, err := encode("", tc.s); err != nil {
 163                         t.Errorf(`encode("", %q): %v`, tc.s, err)
 164                 } else if got != tc.encoded {
 165                         t.Errorf(`encode("", %q): got %q, want %q`, tc.s, got, tc.encoded)
 166                 }
 167         }
 168 }
 169
 170 var punycodeErrorTestCases = [...]string{
 171         "decode -",            // A sole '-' is invalid.
 172         "decode foo\x00bar",   // '\x00' is not in [0-9A-Za-z].
 173         "decode foo#bar",      // '#' is not in [0-9A-Za-z].
 174         "decode foo\u00A3bar", // '\u00A3' is not in [0-9A-Za-z].
 175         "decode 9",            // "9a" decodes to codepoint \u00A3; "9" is truncated.
 176         "decode 99999a",       // "99999a" decodes to codepoint \U0048A3C1, which is > \U0010FFFF.
 177         "decode 9999999999a",  // "9999999999a" overflows the int32 calculation.
 178
 179         "encode " + strings.Repeat("x", 65536) + "\uff00", // int32 overflow.
 180 }
 181
 182 func TestPunycodeErrors(t *testing.T) {
 183         for _, tc := range punycodeErrorTestCases {
 184                 var err error
 185                 switch {
 186                 case strings.HasPrefix(tc, "decode "):
 187                         _, err = decode(tc[7:])
 188                 case strings.HasPrefix(tc, "encode "):
 189                         _, err = encode("", tc[7:])
 190                 }
 191                 if err == nil {
 192                         if len(tc) > 256 {
 193                                 tc = tc[:100] + "..." + tc[len(tc)-100:]
 194                         }
 195                         t.Errorf("no error for %s", tc)
 196                 }
 197         }
 198 }