tests/test-mbrtowc.c

   1 /* Test of conversion of multibyte character to wide character.
   2    Copyright (C) 2008-2017 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  16
  17 /* Written by Bruno Haible <bruno@clisp.org>, 2008.  */
  18
  19 #include <config.h>
  20
  21 #include <wchar.h>
  22
  23 #include "signature.h"
  24 SIGNATURE_CHECK (mbrtowc, size_t, (wchar_t *, char const *, size_t,
  25                                    mbstate_t *));
  26
  27 #include <locale.h>
  28 #include <stdio.h>
  29 #include <string.h>
  30
  31 #include "macros.h"
  32
  33 int
  34 main (int argc, char *argv[])
  35 {
  36   mbstate_t state;
  37   wchar_t wc;
  38   size_t ret;
  39
  40   /* configure should already have checked that the locale is supported.  */
  41   if (setlocale (LC_ALL, "") == NULL)
  42     return 1;
  43
  44   /* Test zero-length input.  */
  45   {
  46     memset (&state, '\0', sizeof (mbstate_t));
  47     wc = (wchar_t) 0xBADFACE;
  48     ret = mbrtowc (&wc, "x", 0, &state);
  49     ASSERT (ret == (size_t)(-2));
  50     ASSERT (mbsinit (&state));
  51   }
  52
  53   /* Test NUL byte input.  */
  54   {
  55     memset (&state, '\0', sizeof (mbstate_t));
  56     wc = (wchar_t) 0xBADFACE;
  57     ret = mbrtowc (&wc, "", 1, &state);
  58     ASSERT (ret == 0);
  59     ASSERT (wc == 0);
  60     ASSERT (mbsinit (&state));
  61     ret = mbrtowc (NULL, "", 1, &state);
  62     ASSERT (ret == 0);
  63     ASSERT (mbsinit (&state));
  64   }
  65
  66   /* Test single-byte input.  */
  67   {
  68     int c;
  69     char buf[1];
  70
  71     memset (&state, '\0', sizeof (mbstate_t));
  72     for (c = 0; c < 0x100; c++)
  73       switch (c)
  74         {
  75         default:
  76           if (! (c && 1 < argc && argv[1][0] == '5'))
  77             break;
  78           /* Fall through.  */
  79         case '\t': case '\v': case '\f':
  80         case ' ': case '!': case '"': case '#': case '%':
  81         case '&': case '\'': case '(': case ')': case '*':
  82         case '+': case ',': case '-': case '.': case '/':
  83         case '0': case '1': case '2': case '3': case '4':
  84         case '5': case '6': case '7': case '8': case '9':
  85         case ':': case ';': case '<': case '=': case '>':
  86         case '?':
  87         case 'A': case 'B': case 'C': case 'D': case 'E':
  88         case 'F': case 'G': case 'H': case 'I': case 'J':
  89         case 'K': case 'L': case 'M': case 'N': case 'O':
  90         case 'P': case 'Q': case 'R': case 'S': case 'T':
  91         case 'U': case 'V': case 'W': case 'X': case 'Y':
  92         case 'Z':
  93         case '[': case '\\': case ']': case '^': case '_':
  94         case 'a': case 'b': case 'c': case 'd': case 'e':
  95         case 'f': case 'g': case 'h': case 'i': case 'j':
  96         case 'k': case 'l': case 'm': case 'n': case 'o':
  97         case 'p': case 'q': case 'r': case 's': case 't':
  98         case 'u': case 'v': case 'w': case 'x': case 'y':
  99         case 'z': case '{': case '|': case '}': case '~':
 100           /* c is in the ISO C "basic character set", or argv[1] starts
 101              with '5' so we are testing all nonnull bytes.  */
 102           buf[0] = c;
 103           wc = (wchar_t) 0xBADFACE;
 104           ret = mbrtowc (&wc, buf, 1, &state);
 105           ASSERT (ret == 1);
 106           ASSERT (wc == c);
 107           ASSERT (mbsinit (&state));
 108           ret = mbrtowc (NULL, buf, 1, &state);
 109           ASSERT (ret == 1);
 110           ASSERT (mbsinit (&state));
 111           break;
 112         }
 113   }
 114
 115   /* Test special calling convention, passing a NULL pointer.  */
 116   {
 117     memset (&state, '\0', sizeof (mbstate_t));
 118     wc = (wchar_t) 0xBADFACE;
 119     ret = mbrtowc (&wc, NULL, 5, &state);
 120     ASSERT (ret == 0);
 121     ASSERT (wc == (wchar_t) 0xBADFACE);
 122     ASSERT (mbsinit (&state));
 123   }
 124
 125   if (argc > 1)
 126     switch (argv[1][0])
 127       {
 128       case '1':
 129         /* Locale encoding is ISO-8859-1 or ISO-8859-15.  */
 130         {
 131           char input[] = "B\374\337er"; /* "Büßer" */
 132           memset (&state, '\0', sizeof (mbstate_t));
 133
 134           wc = (wchar_t) 0xBADFACE;
 135           ret = mbrtowc (&wc, input, 1, &state);
 136           ASSERT (ret == 1);
 137           ASSERT (wc == 'B');
 138           ASSERT (mbsinit (&state));
 139           input[0] = '\0';
 140
 141           wc = (wchar_t) 0xBADFACE;
 142           ret = mbrtowc (&wc, input + 1, 1, &state);
 143           ASSERT (ret == 1);
 144           ASSERT (wctob (wc) == (unsigned char) '\374');
 145           ASSERT (mbsinit (&state));
 146           input[1] = '\0';
 147
 148           /* Test support of NULL first argument.  */
 149           ret = mbrtowc (NULL, input + 2, 3, &state);
 150           ASSERT (ret == 1);
 151           ASSERT (mbsinit (&state));
 152
 153           wc = (wchar_t) 0xBADFACE;
 154           ret = mbrtowc (&wc, input + 2, 3, &state);
 155           ASSERT (ret == 1);
 156           ASSERT (wctob (wc) == (unsigned char) '\337');
 157           ASSERT (mbsinit (&state));
 158           input[2] = '\0';
 159
 160           wc = (wchar_t) 0xBADFACE;
 161           ret = mbrtowc (&wc, input + 3, 2, &state);
 162           ASSERT (ret == 1);
 163           ASSERT (wc == 'e');
 164           ASSERT (mbsinit (&state));
 165           input[3] = '\0';
 166
 167           wc = (wchar_t) 0xBADFACE;
 168           ret = mbrtowc (&wc, input + 4, 1, &state);
 169           ASSERT (ret == 1);
 170           ASSERT (wc == 'r');
 171           ASSERT (mbsinit (&state));
 172         }
 173         return 0;
 174
 175       case '2':
 176         /* Locale encoding is UTF-8.  */
 177         {
 178           char input[] = "B\303\274\303\237er"; /* "Büßer" */
 179           memset (&state, '\0', sizeof (mbstate_t));
 180
 181           wc = (wchar_t) 0xBADFACE;
 182           ret = mbrtowc (&wc, input, 1, &state);
 183           ASSERT (ret == 1);
 184           ASSERT (wc == 'B');
 185           ASSERT (mbsinit (&state));
 186           input[0] = '\0';
 187
 188           wc = (wchar_t) 0xBADFACE;
 189           ret = mbrtowc (&wc, input + 1, 1, &state);
 190           ASSERT (ret == (size_t)(-2));
 191           ASSERT (wc == (wchar_t) 0xBADFACE);
 192           ASSERT (!mbsinit (&state));
 193           input[1] = '\0';
 194
 195           wc = (wchar_t) 0xBADFACE;
 196           ret = mbrtowc (&wc, input + 2, 5, &state);
 197           ASSERT (ret == 1);
 198           ASSERT (wctob (wc) == EOF);
 199           ASSERT (mbsinit (&state));
 200           input[2] = '\0';
 201
 202           /* Test support of NULL first argument.  */
 203           ret = mbrtowc (NULL, input + 3, 4, &state);
 204           ASSERT (ret == 2);
 205           ASSERT (mbsinit (&state));
 206
 207           wc = (wchar_t) 0xBADFACE;
 208           ret = mbrtowc (&wc, input + 3, 4, &state);
 209           ASSERT (ret == 2);
 210           ASSERT (wctob (wc) == EOF);
 211           ASSERT (mbsinit (&state));
 212           input[3] = '\0';
 213           input[4] = '\0';
 214
 215           wc = (wchar_t) 0xBADFACE;
 216           ret = mbrtowc (&wc, input + 5, 2, &state);
 217           ASSERT (ret == 1);
 218           ASSERT (wc == 'e');
 219           ASSERT (mbsinit (&state));
 220           input[5] = '\0';
 221
 222           wc = (wchar_t) 0xBADFACE;
 223           ret = mbrtowc (&wc, input + 6, 1, &state);
 224           ASSERT (ret == 1);
 225           ASSERT (wc == 'r');
 226           ASSERT (mbsinit (&state));
 227         }
 228         return 0;
 229
 230       case '3':
 231         /* Locale encoding is EUC-JP.  */
 232         {
 233           char input[] = "<\306\374\313\334\270\354>"; /* "<日本語>" */
 234           memset (&state, '\0', sizeof (mbstate_t));
 235
 236           wc = (wchar_t) 0xBADFACE;
 237           ret = mbrtowc (&wc, input, 1, &state);
 238           ASSERT (ret == 1);
 239           ASSERT (wc == '<');
 240           ASSERT (mbsinit (&state));
 241           input[0] = '\0';
 242
 243           wc = (wchar_t) 0xBADFACE;
 244           ret = mbrtowc (&wc, input + 1, 2, &state);
 245           ASSERT (ret == 2);
 246           ASSERT (wctob (wc) == EOF);
 247           ASSERT (mbsinit (&state));
 248           input[1] = '\0';
 249           input[2] = '\0';
 250
 251           wc = (wchar_t) 0xBADFACE;
 252           ret = mbrtowc (&wc, input + 3, 1, &state);
 253           ASSERT (ret == (size_t)(-2));
 254           ASSERT (wc == (wchar_t) 0xBADFACE);
 255           ASSERT (!mbsinit (&state));
 256           input[3] = '\0';
 257
 258           wc = (wchar_t) 0xBADFACE;
 259           ret = mbrtowc (&wc, input + 4, 4, &state);
 260           ASSERT (ret == 1);
 261           ASSERT (wctob (wc) == EOF);
 262           ASSERT (mbsinit (&state));
 263           input[4] = '\0';
 264
 265           /* Test support of NULL first argument.  */
 266           ret = mbrtowc (NULL, input + 5, 3, &state);
 267           ASSERT (ret == 2);
 268           ASSERT (mbsinit (&state));
 269
 270           wc = (wchar_t) 0xBADFACE;
 271           ret = mbrtowc (&wc, input + 5, 3, &state);
 272           ASSERT (ret == 2);
 273           ASSERT (wctob (wc) == EOF);
 274           ASSERT (mbsinit (&state));
 275           input[5] = '\0';
 276           input[6] = '\0';
 277
 278           wc = (wchar_t) 0xBADFACE;
 279           ret = mbrtowc (&wc, input + 7, 1, &state);
 280           ASSERT (ret == 1);
 281           ASSERT (wc == '>');
 282           ASSERT (mbsinit (&state));
 283         }
 284         return 0;
 285
 286       case '4':
 287         /* Locale encoding is GB18030.  */
 288         {
 289           char input[] = "B\250\271\201\060\211\070er"; /* "Büßer" */
 290           memset (&state, '\0', sizeof (mbstate_t));
 291
 292           wc = (wchar_t) 0xBADFACE;
 293           ret = mbrtowc (&wc, input, 1, &state);
 294           ASSERT (ret == 1);
 295           ASSERT (wc == 'B');
 296           ASSERT (mbsinit (&state));
 297           input[0] = '\0';
 298
 299           wc = (wchar_t) 0xBADFACE;
 300           ret = mbrtowc (&wc, input + 1, 1, &state);
 301           ASSERT (ret == (size_t)(-2));
 302           ASSERT (wc == (wchar_t) 0xBADFACE);
 303           ASSERT (!mbsinit (&state));
 304           input[1] = '\0';
 305
 306           wc = (wchar_t) 0xBADFACE;
 307           ret = mbrtowc (&wc, input + 2, 7, &state);
 308           ASSERT (ret == 1);
 309           ASSERT (wctob (wc) == EOF);
 310           ASSERT (mbsinit (&state));
 311           input[2] = '\0';
 312
 313           /* Test support of NULL first argument.  */
 314           ret = mbrtowc (NULL, input + 3, 6, &state);
 315           ASSERT (ret == 4);
 316           ASSERT (mbsinit (&state));
 317
 318           wc = (wchar_t) 0xBADFACE;
 319           ret = mbrtowc (&wc, input + 3, 6, &state);
 320           ASSERT (ret == 4);
 321           ASSERT (wctob (wc) == EOF);
 322           ASSERT (mbsinit (&state));
 323           input[3] = '\0';
 324           input[4] = '\0';
 325           input[5] = '\0';
 326           input[6] = '\0';
 327
 328           wc = (wchar_t) 0xBADFACE;
 329           ret = mbrtowc (&wc, input + 7, 2, &state);
 330           ASSERT (ret == 1);
 331           ASSERT (wc == 'e');
 332           ASSERT (mbsinit (&state));
 333           input[5] = '\0';
 334
 335           wc = (wchar_t) 0xBADFACE;
 336           ret = mbrtowc (&wc, input + 8, 1, &state);
 337           ASSERT (ret == 1);
 338           ASSERT (wc == 'r');
 339           ASSERT (mbsinit (&state));
 340         }
 341         return 0;
 342
 343       case '5':
 344         /* C locale; tested above.  */
 345         return 0;
 346       }
 347
 348   return 1;
 349 }