glib/tests/convert.c

   1 /* GLIB - Library of useful routines for C programming
   2  * Copyright (C) 1995-1997  Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library 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 GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 /*
  19  * Modified by the GLib Team and others 1997-2000.  See the AUTHORS
  20  * file for a list of people on the GLib Team.  See the ChangeLog
  21  * files for a list of changes.  These files are distributed with
  22  * GLib at ftp://ftp.gtk.org/pub/gtk/.
  23  */
  24
  25 #undef G_DISABLE_ASSERT
  26 #undef G_LOG_DOMAIN
  27
  28 #include <string.h>
  29
  30 #include <glib.h>
  31
  32 /* Bug 311337 */
  33 static void
  34 test_iconv_state (void)
  35 {
  36   gchar *in = "\xf4\xe5\xf8\xe5\xed";
  37   gchar *expected = "\xd7\xa4\xd7\x95\xd7\xa8\xd7\x95\xd7\x9d";
  38   gchar *out;
  39   gsize bytes_read = 0;
  40   gsize bytes_written = 0;
  41   GError *error = NULL;
  42
  43   out = g_convert (in, -1, "UTF-8", "CP1255",
  44                    &bytes_read, &bytes_written, &error);
  45
  46   if (error && error->code == G_CONVERT_ERROR_NO_CONVERSION)
  47     return; /* silently skip if CP1255 is not supported, see bug 467707 */
  48
  49   g_assert_no_error (error);
  50   g_assert_cmpint (bytes_read, ==, 5);
  51   g_assert_cmpint (bytes_written, ==, 10);
  52   g_assert_cmpstr (out, ==, expected);
  53   g_free (out);
  54 }
  55
  56 /* some tests involving "vulgar fraction one half" */
  57 static void
  58 test_one_half (void)
  59 {
  60   gchar *in = "\xc2\xbd";
  61   gchar *out;
  62   gsize bytes_read = 0;
  63   gsize bytes_written = 0;
  64   GError *error = NULL;
  65
  66   out = g_convert (in, -1,
  67                    "ISO-8859-1", "UTF-8",
  68                    &bytes_read, &bytes_written,
  69                    &error);
  70
  71   g_assert_no_error (error);
  72   g_assert_cmpint (bytes_read, ==, 2);
  73   g_assert_cmpint (bytes_written, ==, 1);
  74   g_assert_cmpstr (out, ==, "\xbd");
  75   g_free (out);
  76
  77   out = g_convert (in, -1,
  78                    "ISO-8859-15", "UTF-8",
  79                    &bytes_read, &bytes_written,
  80                    &error);
  81
  82   g_assert_error (error, G_CONVERT_ERROR, G_CONVERT_ERROR_ILLEGAL_SEQUENCE);
  83   g_assert_cmpint (bytes_read, ==, 0);
  84   g_assert_cmpint (bytes_written, ==, 0);
  85   g_assert_cmpstr (out, ==, NULL);
  86   g_clear_error (&error);
  87   g_free (out);
  88
  89   out = g_convert_with_fallback (in, -1,
  90                                  "ISO8859-15", "UTF-8",
  91                                  "a",
  92                                  &bytes_read, &bytes_written,
  93                                  &error);
  94
  95   g_assert_no_error (error);
  96   g_assert_cmpint (bytes_read, ==, 2);
  97   g_assert_cmpint (bytes_written, ==, 1);
  98   g_assert_cmpstr (out, ==, "a");
  99   g_free (out);
 100 }
 101
 102 static void
 103 test_byte_order (void)
 104 {
 105   gchar in_be[4] = { 0xfe, 0xff, 0x03, 0x93}; /* capital gamma */
 106   gchar in_le[4] = { 0xff, 0xfe, 0x93, 0x03};
 107   gchar *expected = "\xce\x93";
 108   gchar *out;
 109   gsize bytes_read = 0;
 110   gsize bytes_written = 0;
 111   GError *error = NULL;
 112
 113   out = g_convert (in_be, sizeof (in_be),
 114                    "UTF-8", "UTF-16",
 115                    &bytes_read, &bytes_written,
 116                    &error);
 117
 118   g_assert_no_error (error);
 119   g_assert_cmpint (bytes_read, ==, 4);
 120   g_assert_cmpint (bytes_written, ==, 2);
 121   g_assert_cmpstr (out, ==, expected);
 122   g_free (out);
 123
 124   out = g_convert (in_le, sizeof (in_le),
 125                    "UTF-8", "UTF-16",
 126                    &bytes_read, &bytes_written,
 127                    &error);
 128
 129   g_assert_no_error (error);
 130   g_assert_cmpint (bytes_read, ==, 4);
 131   g_assert_cmpint (bytes_written, ==, 2);
 132   g_assert_cmpstr (out, ==, expected);
 133   g_free (out);
 134 }
 135
 136 static void
 137 check_utf8_to_ucs4 (const char     *utf8,
 138                     glong           utf8_len,
 139                     const gunichar *ucs4,
 140                     glong           ucs4_len,
 141                     glong           error_pos)
 142 {
 143   gunichar *result, *result2, *result3;
 144   glong items_read, items_read2;
 145   glong items_written, items_written2;
 146   GError *error, *error2, *error3;
 147   gint i;
 148
 149   if (!error_pos)
 150     {
 151       /* check the fast conversion */
 152       result = g_utf8_to_ucs4_fast (utf8, utf8_len, &items_written);
 153
 154       g_assert_cmpint (items_written, ==, ucs4_len);
 155       g_assert (result);
 156       for (i = 0; i <= items_written; i++)
 157         g_assert (result[i] == ucs4[i]);
 158
 159       g_free (result);
 160     }
 161
 162   error = NULL;
 163   result = g_utf8_to_ucs4 (utf8, utf8_len, &items_read, &items_written, &error);
 164
 165   if (utf8_len == strlen (utf8))
 166     {
 167       /* check that len == -1 yields identical results */
 168       error2 = NULL;
 169       result2 = g_utf8_to_ucs4 (utf8, -1, &items_read2, &items_written2, &error2);
 170       g_assert (error || items_read2 == items_read);
 171       g_assert (error || items_written2 == items_written2);
 172       g_assert_cmpint (!!result, ==, !!result2);
 173       g_assert_cmpint (!!error, ==, !!error2);
 174       if (result)
 175         for (i = 0; i <= items_written; i++)
 176           g_assert (result[i] == result2[i]);
 177
 178       g_free (result2);
 179       if (error2)
 180         g_error_free (error2);
 181     }
 182
 183   error3 = NULL;
 184   result3 = g_utf8_to_ucs4 (utf8, utf8_len, NULL, NULL, &error3);
 185
 186   if (error3 && error3->code == G_CONVERT_ERROR_PARTIAL_INPUT)
 187     {
 188       g_assert_no_error (error);
 189       g_assert_cmpint (items_read, ==, error_pos);
 190       g_assert_cmpint (items_written, ==, ucs4_len);
 191       g_assert (result);
 192       for (i = 0; i <= items_written; i++)
 193         g_assert (result[i] == ucs4[i]);
 194       g_error_free (error3);
 195     }
 196   else if (error_pos)
 197     {
 198       g_assert (error != NULL);
 199       g_assert (result == NULL);
 200       g_assert_cmpint (items_read, ==, error_pos);
 201       g_error_free (error);
 202
 203       g_assert (error3 != NULL);
 204       g_assert (result3 == NULL);
 205       g_error_free (error3);
 206     }
 207   else
 208     {
 209       g_assert_no_error (error);
 210       g_assert_cmpint (items_read, ==, utf8_len);
 211       g_assert_cmpint (items_written, ==, ucs4_len);
 212       g_assert (result);
 213       for (i = 0; i <= items_written; i++)
 214         g_assert (result[i] == ucs4[i]);
 215
 216       g_assert_no_error (error3);
 217       g_assert (result3);
 218       for (i = 0; i <= ucs4_len; i++)
 219         g_assert (result3[i] == ucs4[i]);
 220     }
 221
 222   g_free (result);
 223   g_free (result3);
 224 }
 225
 226 static void
 227 check_ucs4_to_utf8 (const gunichar *ucs4,
 228                     glong           ucs4_len,
 229                     const char     *utf8,
 230                     glong           utf8_len,
 231                     glong           error_pos)
 232 {
 233   gchar *result, *result2, *result3;
 234   glong items_read, items_read2;
 235   glong items_written, items_written2;
 236   GError *error, *error2, *error3;
 237
 238   error = NULL;
 239   result = g_ucs4_to_utf8 (ucs4, ucs4_len, &items_read, &items_written, &error);
 240
 241   if (ucs4[ucs4_len] == 0)
 242     {
 243       /* check that len == -1 yields identical results */
 244       error2 = NULL;
 245       result2 = g_ucs4_to_utf8 (ucs4, -1, &items_read2, &items_written2, &error2);
 246
 247       g_assert (error || items_read2 == items_read);
 248       g_assert (error || items_written2 == items_written);
 249       g_assert_cmpint (!!result, ==, !!result2);
 250       g_assert_cmpint (!!error, ==, !!error2);
 251       if (result)
 252         g_assert_cmpstr (result, ==, result2);
 253
 254       g_free (result2);
 255       if (error2)
 256         g_error_free (error2);
 257     }
 258
 259   error3 = NULL;
 260   result3 = g_ucs4_to_utf8 (ucs4, ucs4_len, NULL, NULL, &error3);
 261
 262   if (error_pos)
 263     {
 264       g_assert (error != NULL);
 265       g_assert (result == NULL);
 266       g_assert_cmpint (items_read, ==, error_pos);
 267       g_error_free (error);
 268
 269       g_assert (error3 != NULL);
 270       g_assert (result3 == NULL);
 271       g_error_free (error3);
 272     }
 273   else
 274     {
 275       g_assert_no_error (error);
 276       g_assert_cmpint (items_read, ==, ucs4_len);
 277       g_assert_cmpint (items_written, ==, utf8_len);
 278       g_assert (result);
 279       g_assert_cmpstr (result, ==, utf8);
 280
 281       g_assert_no_error (error3);
 282       g_assert (result3);
 283       g_assert_cmpstr (result3, ==, utf8);
 284     }
 285
 286   g_free (result);
 287   g_free (result3);
 288 }
 289
 290 static void
 291 check_utf8_to_utf16 (const char      *utf8,
 292                      glong            utf8_len,
 293                      const gunichar2 *utf16,
 294                      glong            utf16_len,
 295                      glong            error_pos)
 296 {
 297   gunichar2 *result, *result2, *result3;
 298   glong items_read, items_read2;
 299   glong items_written, items_written2;
 300   GError *error, *error2, *error3;
 301   gint i;
 302
 303   error = NULL;
 304   result = g_utf8_to_utf16 (utf8, utf8_len, &items_read, &items_written, &error);
 305
 306   if (utf8_len == strlen (utf8))
 307     {
 308       /* check that len == -1 yields identical results */
 309       error2 = NULL;
 310       result2 = g_utf8_to_utf16 (utf8, -1, &items_read2, &items_written2, &error2);
 311       g_assert (error || items_read2 == items_read);
 312       g_assert (error || items_written2 == items_written2);
 313       g_assert_cmpint (!!result, ==, !!result2);
 314       g_assert_cmpint (!!error, ==, !!error2);
 315       if (result)
 316         for (i = 0; i <= items_written; i++)
 317           g_assert (result[i] == result2[i]);
 318
 319       g_free (result2);
 320       if (error2)
 321         g_error_free (error2);
 322     }
 323
 324   error3 = NULL;
 325   result3 = g_utf8_to_utf16 (utf8, utf8_len, NULL, NULL, &error3);
 326
 327   if (error3 && error3->code == G_CONVERT_ERROR_PARTIAL_INPUT)
 328     {
 329       g_assert_no_error (error);
 330       g_assert_cmpint (items_read, ==, error_pos);
 331       g_assert_cmpint (items_written, ==, utf16_len);
 332       g_assert (result);
 333       for (i = 0; i <= items_written; i++)
 334         g_assert (result[i] == utf16[i]);
 335       g_error_free (error3);
 336     }
 337   else if (error_pos)
 338     {
 339       g_assert (error != NULL);
 340       g_assert (result == NULL);
 341       g_assert_cmpint (items_read, ==, error_pos);
 342       g_error_free (error);
 343
 344       g_assert (error3 != NULL);
 345       g_assert (result3 == NULL);
 346       g_error_free (error3);
 347     }
 348   else
 349     {
 350       g_assert_no_error (error);
 351       g_assert_cmpint (items_read, ==, utf8_len);
 352       g_assert_cmpint (items_written, ==, utf16_len);
 353       g_assert (result);
 354       for (i = 0; i <= items_written; i++)
 355         g_assert (result[i] == utf16[i]);
 356
 357       g_assert_no_error (error3);
 358       g_assert (result3);
 359       for (i = 0; i <= utf16_len; i++)
 360         g_assert (result3[i] == utf16[i]);
 361     }
 362
 363   g_free (result);
 364   g_free (result3);
 365 }
 366
 367 static void
 368 check_utf16_to_utf8 (const gunichar2 *utf16,
 369                      glong            utf16_len,
 370                      const char      *utf8,
 371                      glong            utf8_len,
 372                      glong            error_pos)
 373 {
 374   gchar *result, *result2, *result3;
 375   glong items_read, items_read2;
 376   glong items_written, items_written2;
 377   GError *error, *error2, *error3;
 378
 379   error = NULL;
 380   result = g_utf16_to_utf8 (utf16, utf16_len, &items_read, &items_written, &error);
 381   if (utf16[utf16_len] == 0)
 382     {
 383       /* check that len == -1 yields identical results */
 384       error2 = NULL;
 385       result2 = g_utf16_to_utf8 (utf16, -1, &items_read2, &items_written2, &error2);
 386
 387       g_assert (error || items_read2 == items_read);
 388       g_assert (error || items_written2 == items_written);
 389       g_assert_cmpint (!!result, ==, !!result2);
 390       g_assert_cmpint (!!error, ==, !!error2);
 391       if (result)
 392         g_assert_cmpstr (result, ==, result2);
 393
 394       g_free (result2);
 395       if (error2)
 396         g_error_free (error2);
 397     }
 398
 399   error3 = NULL;
 400   result3 = g_utf16_to_utf8 (utf16, utf16_len, NULL, NULL, &error3);
 401
 402   if (error3 && error3->code == G_CONVERT_ERROR_PARTIAL_INPUT)
 403     {
 404       g_assert_no_error (error);
 405       g_assert_cmpint (items_read, ==, error_pos);
 406       g_assert_cmpint (items_read + 1, ==, utf16_len);
 407       g_assert_cmpint (items_written, ==, utf8_len);
 408       g_assert (result);
 409       g_assert_cmpstr (result, ==, utf8);
 410       g_error_free (error3);
 411     }
 412   else if (error_pos)
 413     {
 414       g_assert (error != NULL);
 415       g_assert (result == NULL);
 416       g_assert_cmpint (items_read, ==, error_pos);
 417       g_error_free (error);
 418
 419       g_assert (error3 != NULL);
 420       g_assert (result3 == NULL);
 421       g_error_free (error3);
 422     }
 423   else
 424     {
 425       g_assert_no_error (error);
 426       g_assert_cmpint (items_read, ==, utf16_len);
 427       g_assert_cmpint (items_written, ==, utf8_len);
 428       g_assert (result);
 429       g_assert_cmpstr (result, ==, utf8);
 430
 431       g_assert_no_error (error3);
 432       g_assert (result3);
 433       g_assert_cmpstr (result3, ==, utf8);
 434     }
 435
 436   g_free (result);
 437   g_free (result3);
 438 }
 439
 440 static void
 441 check_ucs4_to_utf16 (const gunichar  *ucs4,
 442                      glong            ucs4_len,
 443                      const gunichar2 *utf16,
 444                      glong            utf16_len,
 445                      glong            error_pos)
 446 {
 447   gunichar2 *result, *result2, *result3;
 448   glong items_read, items_read2;
 449   glong items_written, items_written2;
 450   GError *error, *error2, *error3;
 451   gint i;
 452
 453   error = NULL;
 454   result = g_ucs4_to_utf16 (ucs4, ucs4_len, &items_read, &items_written, &error);
 455
 456   if (ucs4[ucs4_len] == 0)
 457     {
 458       /* check that len == -1 yields identical results */
 459       error2 = NULL;
 460       result2 = g_ucs4_to_utf16 (ucs4, -1, &items_read2, &items_written2, &error2);
 461
 462       g_assert (error || items_read2 == items_read);
 463       g_assert (error || items_written2 == items_written);
 464       g_assert_cmpint (!!result, ==, !!result2);
 465       g_assert_cmpint (!!error, ==, !!error2);
 466       if (result)
 467       for (i = 0; i <= utf16_len; i++)
 468         g_assert (result[i] == result2[i]);
 469
 470       g_free (result2);
 471       if (error2)
 472         g_error_free (error2);
 473     }
 474
 475   error3 = NULL;
 476   result3 = g_ucs4_to_utf16 (ucs4, -1, NULL, NULL, &error3);
 477
 478   if (error_pos)
 479     {
 480       g_assert (error != NULL);
 481       g_assert (result == NULL);
 482       g_assert_cmpint (items_read, ==, error_pos);
 483       g_error_free (error);
 484
 485       g_assert (error3 != NULL);
 486       g_assert (result3 == NULL);
 487       g_error_free (error3);
 488     }
 489   else
 490     {
 491       g_assert_no_error (error);
 492       g_assert_cmpint (items_read, ==, ucs4_len);
 493       g_assert_cmpint (items_written, ==, utf16_len);
 494       g_assert (result);
 495       for (i = 0; i <= utf16_len; i++)
 496         g_assert (result[i] == utf16[i]);
 497
 498       g_assert_no_error (error3);
 499       g_assert (result3);
 500       for (i = 0; i <= utf16_len; i++)
 501         g_assert (result3[i] == utf16[i]);
 502     }
 503
 504   g_free (result);
 505   g_free (result3);
 506 }
 507
 508 static void
 509 check_utf16_to_ucs4 (const gunichar2 *utf16,
 510                      glong            utf16_len,
 511                      const gunichar  *ucs4,
 512                      glong            ucs4_len,
 513                      glong            error_pos)
 514 {
 515   gunichar *result, *result2, *result3;
 516   glong items_read, items_read2;
 517   glong items_written, items_written2;
 518   GError *error, *error2, *error3;
 519   gint i;
 520
 521   error = NULL;
 522   result = g_utf16_to_ucs4 (utf16, utf16_len, &items_read, &items_written, &error);
 523   if (utf16[utf16_len] == 0)
 524     {
 525       /* check that len == -1 yields identical results */
 526       error2 = NULL;
 527       result2 = g_utf16_to_ucs4 (utf16, -1, &items_read2, &items_written2, &error2);
 528       g_assert (error || items_read2 == items_read);
 529       g_assert (error || items_written2 == items_written2);
 530       g_assert_cmpint (!!result, ==, !!result2);
 531       g_assert_cmpint (!!error, ==, !!error2);
 532       if (result)
 533         for (i = 0; i <= items_written; i++)
 534           g_assert (result[i] == result2[i]);
 535
 536       g_free (result2);
 537       if (error2)
 538         g_error_free (error2);
 539     }
 540
 541   error3 = NULL;
 542   result3 = g_utf16_to_ucs4 (utf16, utf16_len, NULL, NULL, &error3);
 543
 544   if (error3 && error3->code == G_CONVERT_ERROR_PARTIAL_INPUT)
 545     {
 546       g_assert_no_error (error);
 547       g_assert_cmpint (items_read, ==, error_pos);
 548       g_assert_cmpint (items_read + 1, ==, utf16_len);
 549       g_assert_cmpint (items_written, ==, ucs4_len);
 550       g_assert (result);
 551       for (i = 0; i <= items_written; i++)
 552         g_assert (result[i] == ucs4[i]);
 553       g_error_free (error3);
 554     }
 555   else if (error_pos)
 556     {
 557       g_assert (error != NULL);
 558       g_assert (result == NULL);
 559       g_assert_cmpint (items_read, ==, error_pos);
 560       g_error_free (error);
 561
 562       g_assert (error3 != NULL);
 563       g_assert (result3 == NULL);
 564       g_error_free (error3);
 565     }
 566   else
 567     {
 568       g_assert_no_error (error);
 569       g_assert_cmpint (items_read, ==, utf16_len);
 570       g_assert_cmpint (items_written, ==, ucs4_len);
 571       g_assert (result);
 572       for (i = 0; i <= ucs4_len; i++)
 573         g_assert (result[i] == ucs4[i]);
 574
 575       g_assert_no_error (error3);
 576       g_assert (result3);
 577       for (i = 0; i <= ucs4_len; i++)
 578         g_assert (result3[i] == ucs4[i]);
 579     }
 580
 581   g_free (result);
 582   g_free (result3);
 583 }
 584
 585 static void
 586 test_unicode_conversions (void)
 587 {
 588   char *utf8;
 589   gunichar ucs4[100];
 590   gunichar2 utf16[100];
 591
 592   utf8 = "abc";
 593   ucs4[0] = 0x61; ucs4[1] = 0x62; ucs4[2] = 0x63; ucs4[3] = 0;
 594   utf16[0] = 0x61; utf16[1] = 0x62; utf16[2] = 0x63; utf16[3] = 0;
 595
 596   check_utf8_to_ucs4 (utf8, 3, ucs4, 3, 0);
 597   check_ucs4_to_utf8 (ucs4, 3, utf8, 3, 0);
 598   check_utf8_to_utf16 (utf8, 3, utf16, 3, 0);
 599   check_utf16_to_utf8 (utf16, 3, utf8, 3, 0);
 600   check_ucs4_to_utf16 (ucs4, 3, utf16, 3, 0);
 601   check_utf16_to_ucs4 (utf16, 3, ucs4, 3, 0);
 602
 603   utf8 = "\316\261\316\262\316\263";
 604   ucs4[0] = 0x03b1; ucs4[1] = 0x03b2; ucs4[2] = 0x03b3; ucs4[3] = 0;
 605   utf16[0] = 0x03b1; utf16[1] = 0x03b2; utf16[2] = 0x03b3; utf16[3] = 0;
 606
 607   check_utf8_to_ucs4 (utf8, 6, ucs4, 3, 0);
 608   check_ucs4_to_utf8 (ucs4, 3, utf8, 6, 0);
 609   check_utf8_to_utf16 (utf8, 6, utf16, 3, 0);
 610   check_utf16_to_utf8 (utf16, 3, utf8, 6, 0);
 611   check_ucs4_to_utf16 (ucs4, 3, utf16, 3, 0);
 612   check_utf16_to_ucs4 (utf16, 3, ucs4, 3, 0);
 613
 614   /* partial utf8 character */
 615   utf8 = "abc\316";
 616   ucs4[0] = 0x61; ucs4[1] = 0x62; ucs4[2] = 0x63; ucs4[3] = 0;
 617   utf16[0] = 0x61; utf16[1] = 0x62; utf16[2] = 0x63; utf16[3] = 0;
 618
 619   check_utf8_to_ucs4 (utf8, 4, ucs4, 3, 3);
 620   check_utf8_to_utf16 (utf8, 4, utf16, 3, 3);
 621
 622   /* invalid utf8 */
 623   utf8 = "abc\316\316";
 624   ucs4[0] = 0;
 625   utf16[0] = 0;
 626
 627   check_utf8_to_ucs4 (utf8, 5, ucs4, 0, 3);
 628   check_utf8_to_utf16 (utf8, 5, utf16, 0, 3);
 629
 630   /* partial utf16 character */
 631   utf8 = "ab";
 632   ucs4[0] = 0x61; ucs4[1] = 0x62; ucs4[2] = 0;
 633   utf16[0] = 0x61; utf16[1] = 0x62; utf16[2] = 0xd801; utf16[3] = 0;
 634
 635   check_utf16_to_utf8 (utf16, 3, utf8, 2, 2);
 636   check_utf16_to_ucs4 (utf16, 3, ucs4, 2, 2);
 637
 638   /* invalid utf16 */
 639   utf8 = NULL;
 640   ucs4[0] = 0;
 641   utf16[0] = 0x61; utf16[1] = 0x62; utf16[2] = 0xdc01; utf16[3] = 0;
 642
 643   check_utf16_to_utf8 (utf16, 3, utf8, 0, 2);
 644   check_utf16_to_ucs4 (utf16, 3, ucs4, 0, 2);
 645
 646   /* invalid ucs4 */
 647   utf8 = NULL;
 648   ucs4[0] = 0x61; ucs4[1] = 0x62; ucs4[2] = 0x80000000; ucs4[3] = 0;
 649   utf16[0] = 0;
 650
 651   check_ucs4_to_utf8 (ucs4, 3, utf8, 0, 2);
 652   check_ucs4_to_utf16 (ucs4, 3, utf16, 0, 2);
 653 }
 654
 655 static void
 656 test_filename_utf8 (void)
 657 {
 658   const gchar *filename = "/my/path/to/foo";
 659   gchar *utf8;
 660   gchar *back;
 661   GError *error;
 662
 663   error = NULL;
 664   utf8 = g_filename_to_utf8 (filename, -1, NULL, NULL, &error);
 665   g_assert_no_error (error);
 666   back = g_filename_from_utf8 (utf8, -1, NULL, NULL, &error);
 667   g_assert_no_error (error);
 668   g_assert_cmpstr (back, ==, filename);
 669
 670   g_free (utf8);
 671   g_free (back);
 672 }
 673
 674 static void
 675 test_filename_display (void)
 676 {
 677   const gchar *filename = "/my/path/to/foo";
 678   char *display;
 679
 680   display = g_filename_display_basename (filename);
 681   g_assert_cmpstr (display, ==, "foo");
 682
 683   g_free (display);
 684 }
 685
 686 static void
 687 test_no_conv (void)
 688 {
 689   gchar *in = "";
 690   gchar *out G_GNUC_UNUSED;
 691   gsize bytes_read = 0;
 692   gsize bytes_written = 0;
 693   GError *error = NULL;
 694
 695   out = g_convert (in, -1, "XXX", "UVZ",
 696                    &bytes_read, &bytes_written, &error);
 697
 698   /* error code is unreliable, since we mishandle errno there */
 699   g_assert (error && error->domain == G_CONVERT_ERROR);
 700   g_error_free (error);
 701 }
 702
 703 int
 704 main (int argc, char *argv[])
 705 {
 706   g_test_init (&argc, &argv, NULL);
 707
 708   g_test_add_func ("/conversion/no-conv", test_no_conv);
 709   g_test_add_func ("/conversion/iconv-state", test_iconv_state);
 710   g_test_add_func ("/conversion/illegal-sequence", test_one_half);
 711   g_test_add_func ("/conversion/byte-order", test_byte_order);
 712   g_test_add_func ("/conversion/unicode", test_unicode_conversions);
 713   g_test_add_func ("/conversion/filename-utf8", test_filename_utf8);
 714   g_test_add_func ("/conversion/filename-display", test_filename_display);
 715
 716   return g_test_run ();
 717 }