tests/test-localename.c

   1 /* Test of gl_locale_name function and its variants.
   2    Copyright (C) 2007-2017 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>, 2007.  */
  18
  19 #include <config.h>
  20
  21 #include "localename.h"
  22
  23 #include <locale.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26
  27 #include "macros.h"
  28
  29
  30 #if HAVE_NEWLOCALE && HAVE_USELOCALE
  31
  32 static struct { int cat; int mask; const char *string; } const categories[] =
  33   {
  34       { LC_CTYPE,          LC_CTYPE_MASK,          "LC_CTYPE" },
  35       { LC_NUMERIC,        LC_NUMERIC_MASK,        "LC_NUMERIC" },
  36       { LC_TIME,           LC_TIME_MASK,           "LC_TIME" },
  37       { LC_COLLATE,        LC_COLLATE_MASK,        "LC_COLLATE" },
  38       { LC_MONETARY,       LC_MONETARY_MASK,       "LC_MONETARY" },
  39       { LC_MESSAGES,       LC_MESSAGES_MASK,       "LC_MESSAGES" }
  40 # ifdef LC_PAPER
  41     , { LC_PAPER,          LC_PAPER_MASK,          "LC_PAPER" }
  42 # endif
  43 # ifdef LC_NAME
  44     , { LC_NAME,           LC_NAME_MASK,           "LC_NAME" }
  45 # endif
  46 # ifdef LC_ADDRESS
  47     , { LC_ADDRESS,        LC_ADDRESS_MASK,        "LC_ADDRESS" }
  48 # endif
  49 # ifdef LC_TELEPHONE
  50     , { LC_TELEPHONE,      LC_TELEPHONE_MASK,      "LC_TELEPHONE" }
  51 # endif
  52 # ifdef LC_MEASUREMENT
  53     , { LC_MEASUREMENT,    LC_MEASUREMENT_MASK,    "LC_MEASUREMENT" }
  54 # endif
  55 # ifdef LC_IDENTIFICATION
  56     , { LC_IDENTIFICATION, LC_IDENTIFICATION_MASK, "LC_IDENTIFICATION" }
  57 # endif
  58   };
  59
  60 #endif
  61
  62 /* Test the gl_locale_name() function.  */
  63 static void
  64 test_locale_name (void)
  65 {
  66   const char *name;
  67
  68   /* Check that gl_locale_name returns non-NULL.  */
  69   ASSERT (gl_locale_name (LC_MESSAGES, "LC_MESSAGES") != NULL);
  70
  71   /* Get into a defined state,  */
  72   setlocale (LC_ALL, "en_US.UTF-8");
  73 #if HAVE_NEWLOCALE && HAVE_USELOCALE
  74   uselocale (LC_GLOBAL_LOCALE);
  75 #endif
  76
  77   /* Check that when all environment variables are unset,
  78      gl_locale_name returns the default locale.  */
  79   unsetenv ("LC_ALL");
  80   unsetenv ("LC_CTYPE");
  81   unsetenv ("LC_MESSAGES");
  82   unsetenv ("LC_NUMERIC");
  83   unsetenv ("LANG");
  84   setlocale (LC_ALL, "");
  85   ASSERT (strcmp (gl_locale_name (LC_MESSAGES, "LC_MESSAGES"),
  86                   gl_locale_name_default ()) == 0);
  87   ASSERT (strcmp (gl_locale_name (LC_NUMERIC, "LC_NUMERIC"),
  88                   gl_locale_name_default ()) == 0);
  89
  90   /* Check that an empty environment variable is treated like an unset
  91      environment variable.  */
  92
  93   setenv ("LC_ALL", "", 1);
  94   unsetenv ("LC_CTYPE");
  95   unsetenv ("LC_MESSAGES");
  96   unsetenv ("LANG");
  97   setlocale (LC_ALL, "");
  98   ASSERT (strcmp (gl_locale_name (LC_MESSAGES, "LC_MESSAGES"),
  99                   gl_locale_name_default ()) == 0);
 100
 101   unsetenv ("LC_ALL");
 102   setenv ("LC_CTYPE", "", 1);
 103   unsetenv ("LC_MESSAGES");
 104   unsetenv ("LANG");
 105   setlocale (LC_ALL, "");
 106   ASSERT (strcmp (gl_locale_name (LC_MESSAGES, "LC_MESSAGES"),
 107                   gl_locale_name_default ()) == 0);
 108
 109   unsetenv ("LC_ALL");
 110   unsetenv ("LC_CTYPE");
 111   setenv ("LC_MESSAGES", "", 1);
 112   unsetenv ("LANG");
 113   setlocale (LC_ALL, "");
 114   ASSERT (strcmp (gl_locale_name (LC_MESSAGES, "LC_MESSAGES"),
 115                   gl_locale_name_default ()) == 0);
 116
 117   unsetenv ("LC_ALL");
 118   unsetenv ("LC_CTYPE");
 119   unsetenv ("LC_MESSAGES");
 120   setenv ("LANG", "", 1);
 121   setlocale (LC_ALL, "");
 122   ASSERT (strcmp (gl_locale_name (LC_MESSAGES, "LC_MESSAGES"),
 123                   gl_locale_name_default ()) == 0);
 124
 125   /* Check that LC_ALL overrides the others, and LANG is overridden by the
 126      others.  */
 127
 128   setenv ("LC_ALL", "C", 1);
 129   unsetenv ("LC_CTYPE");
 130   unsetenv ("LC_MESSAGES");
 131   unsetenv ("LANG");
 132   setlocale (LC_ALL, "");
 133   ASSERT (strcmp (gl_locale_name (LC_MESSAGES, "LC_MESSAGES"), "C") == 0);
 134
 135   unsetenv ("LC_ALL");
 136   setenv ("LC_CTYPE", "C", 1);
 137   setenv ("LC_MESSAGES", "C", 1);
 138   unsetenv ("LANG");
 139   setlocale (LC_ALL, "");
 140   ASSERT (strcmp (gl_locale_name (LC_MESSAGES, "LC_MESSAGES"), "C") == 0);
 141
 142   unsetenv ("LC_ALL");
 143   unsetenv ("LC_CTYPE");
 144   unsetenv ("LC_MESSAGES");
 145   setenv ("LANG", "C", 1);
 146   setlocale (LC_ALL, "");
 147   ASSERT (strcmp (gl_locale_name (LC_MESSAGES, "LC_MESSAGES"), "C") == 0);
 148
 149   /* Check mixed situations.  */
 150
 151   unsetenv ("LC_ALL");
 152   unsetenv ("LC_CTYPE");
 153   setenv ("LC_MESSAGES", "fr_FR.UTF-8", 1);
 154   setenv ("LANG", "de_DE.UTF-8", 1);
 155   if (setlocale (LC_ALL, "") != NULL)
 156     {
 157       name = gl_locale_name (LC_CTYPE, "LC_CTYPE");
 158       ASSERT (strcmp (name, "de_DE.UTF-8") == 0);
 159       name = gl_locale_name (LC_MESSAGES, "LC_MESSAGES");
 160       ASSERT (strcmp (name, "fr_FR.UTF-8") == 0);
 161     }
 162
 163   unsetenv ("LC_ALL");
 164   unsetenv ("LC_CTYPE");
 165   setenv ("LC_MESSAGES", "fr_FR.UTF-8", 1);
 166   unsetenv ("LANG");
 167   if (setlocale (LC_ALL, "") != NULL)
 168     {
 169       name = gl_locale_name (LC_CTYPE, "LC_CTYPE");
 170       ASSERT (strcmp (name, gl_locale_name_default ()) == 0);
 171       name = gl_locale_name (LC_MESSAGES, "LC_MESSAGES");
 172       ASSERT (strcmp (name, "fr_FR.UTF-8") == 0);
 173     }
 174
 175 #if HAVE_NEWLOCALE && HAVE_USELOCALE
 176   /* Check that gl_locale_name considers the thread locale.  */
 177   {
 178     locale_t locale = newlocale (LC_ALL_MASK, "fr_FR.UTF-8", NULL);
 179     if (locale != NULL)
 180       {
 181         uselocale (locale);
 182         name = gl_locale_name (LC_CTYPE, "LC_CTYPE");
 183         ASSERT (strcmp (name, "fr_FR.UTF-8") == 0);
 184         name = gl_locale_name (LC_MESSAGES, "LC_MESSAGES");
 185         ASSERT (strcmp (name, "fr_FR.UTF-8") == 0);
 186         uselocale (LC_GLOBAL_LOCALE);
 187         freelocale (locale);
 188       }
 189   }
 190
 191   /* Check that gl_locale_name distinguishes different categories of the
 192      thread locale, and that the name is the right one for each.  */
 193   {
 194     unsigned int i;
 195
 196     for (i = 0; i < SIZEOF (categories); i++)
 197       {
 198         int category_mask = categories[i].mask;
 199         locale_t loc = newlocale (LC_ALL_MASK, "fr_FR.UTF-8", NULL);
 200         if (loc != NULL)
 201           {
 202             locale_t locale = newlocale (category_mask, "de_DE.UTF-8", loc);
 203             if (locale == NULL)
 204               freelocale (loc);
 205             else
 206               {
 207                 unsigned int j;
 208
 209                 uselocale (locale);
 210                 for (j = 0; j < SIZEOF (categories); j++)
 211                   {
 212                     const char *name_j =
 213                       gl_locale_name (categories[j].cat, categories[j].string);
 214                     if (j == i)
 215                       ASSERT (strcmp (name_j, "de_DE.UTF-8") == 0);
 216                     else
 217                       ASSERT (strcmp (name_j, "fr_FR.UTF-8") == 0);
 218                   }
 219                 uselocale (LC_GLOBAL_LOCALE);
 220                 freelocale (locale);
 221               }
 222           }
 223       }
 224   }
 225 #endif
 226 }
 227
 228 /* Test the gl_locale_name_thread() function.  */
 229 static void
 230 test_locale_name_thread (void)
 231 {
 232   /* Get into a defined state,  */
 233   setlocale (LC_ALL, "en_US.UTF-8");
 234
 235 #if HAVE_NEWLOCALE && HAVE_USELOCALE
 236   /* Check that gl_locale_name_thread returns NULL when no thread locale is
 237      set.  */
 238   uselocale (LC_GLOBAL_LOCALE);
 239   ASSERT (gl_locale_name_thread (LC_CTYPE, "LC_CTYPE") == NULL);
 240   ASSERT (gl_locale_name_thread (LC_MESSAGES, "LC_MESSAGES") == NULL);
 241
 242   /* Check that gl_locale_name_thread considers the thread locale.  */
 243   {
 244     locale_t locale = newlocale (LC_ALL_MASK, "fr_FR.UTF-8", NULL);
 245     if (locale != NULL)
 246       {
 247         const char *name;
 248
 249         uselocale (locale);
 250         name = gl_locale_name_thread (LC_CTYPE, "LC_CTYPE");
 251         ASSERT (strcmp (name, "fr_FR.UTF-8") == 0);
 252         name = gl_locale_name_thread (LC_MESSAGES, "LC_MESSAGES");
 253         ASSERT (strcmp (name, "fr_FR.UTF-8") == 0);
 254         uselocale (LC_GLOBAL_LOCALE);
 255         freelocale (locale);
 256       }
 257   }
 258
 259   /* Check that gl_locale_name_thread distinguishes different categories of the
 260      thread locale, and that the name is the right one for each.  */
 261   {
 262     unsigned int i;
 263
 264     for (i = 0; i < SIZEOF (categories); i++)
 265       {
 266         int category_mask = categories[i].mask;
 267         locale_t loc = newlocale (LC_ALL_MASK, "fr_FR.UTF-8", NULL);
 268         if (loc != NULL)
 269           {
 270             locale_t locale = newlocale (category_mask, "de_DE.UTF-8", loc);
 271             if (locale == NULL)
 272               freelocale (loc);
 273             else
 274               {
 275                 unsigned int j;
 276
 277                 uselocale (locale);
 278                 for (j = 0; j < SIZEOF (categories); j++)
 279                   {
 280                     const char *name_j =
 281                       gl_locale_name_thread (categories[j].cat,
 282                                              categories[j].string);
 283                     if (j == i)
 284                       ASSERT (strcmp (name_j, "de_DE.UTF-8") == 0);
 285                     else
 286                       ASSERT (strcmp (name_j, "fr_FR.UTF-8") == 0);
 287                   }
 288                 uselocale (LC_GLOBAL_LOCALE);
 289                 freelocale (locale);
 290               }
 291           }
 292       }
 293   }
 294
 295   /* Check that gl_locale_name_thread returns a string that is allocated with
 296      indefinite extent.  */
 297   {
 298     /* Try many locale names in turn, in order to defeat possible caches.  */
 299     static const char * const choices[] =
 300       {
 301         "C",
 302         "POSIX",
 303         "af_ZA",
 304         "af_ZA.UTF-8",
 305         "am_ET",
 306         "am_ET.UTF-8",
 307         "be_BY",
 308         "be_BY.UTF-8",
 309         "bg_BG",
 310         "bg_BG.UTF-8",
 311         "ca_ES",
 312         "ca_ES.UTF-8",
 313         "cs_CZ",
 314         "cs_CZ.UTF-8",
 315         "da_DK",
 316         "da_DK.UTF-8",
 317         "de_AT",
 318         "de_AT.UTF-8",
 319         "de_CH",
 320         "de_CH.UTF-8",
 321         "de_DE",
 322         "de_DE.UTF-8",
 323         "el_GR",
 324         "el_GR.UTF-8",
 325         "en_AU",
 326         "en_AU.UTF-8",
 327         "en_CA",
 328         "en_CA.UTF-8",
 329         "en_GB",
 330         "en_GB.UTF-8",
 331         "en_IE",
 332         "en_IE.UTF-8",
 333         "en_NZ",
 334         "en_NZ.UTF-8",
 335         "en_US",
 336         "en_US.UTF-8",
 337         "es_ES",
 338         "es_ES.UTF-8",
 339         "et_EE",
 340         "et_EE.UTF-8",
 341         "eu_ES",
 342         "eu_ES.UTF-8",
 343         "fi_FI",
 344         "fi_FI.UTF-8",
 345         "fr_BE",
 346         "fr_BE.UTF-8",
 347         "fr_CA",
 348         "fr_CA.UTF-8",
 349         "fr_CH",
 350         "fr_CH.UTF-8",
 351         "fr_FR",
 352         "fr_FR.UTF-8",
 353         "he_IL",
 354         "he_IL.UTF-8",
 355         "hr_HR",
 356         "hr_HR.UTF-8",
 357         "hu_HU",
 358         "hu_HU.UTF-8",
 359         "hy_AM",
 360         "is_IS",
 361         "is_IS.UTF-8",
 362         "it_CH",
 363         "it_CH.UTF-8",
 364         "it_IT",
 365         "it_IT.UTF-8",
 366         "ja_JP.UTF-8",
 367         "kk_KZ",
 368         "kk_KZ.UTF-8",
 369         "ko_KR.UTF-8",
 370         "lt_LT",
 371         "lt_LT.UTF-8",
 372         "nl_BE",
 373         "nl_BE.UTF-8",
 374         "nl_NL",
 375         "nl_NL.UTF-8",
 376         "no_NO",
 377         "no_NO.UTF-8",
 378         "pl_PL",
 379         "pl_PL.UTF-8",
 380         "pt_BR",
 381         "pt_BR.UTF-8",
 382         "pt_PT",
 383         "pt_PT.UTF-8",
 384         "ro_RO",
 385         "ro_RO.UTF-8",
 386         "ru_RU",
 387         "ru_RU.UTF-8",
 388         "sk_SK",
 389         "sk_SK.UTF-8",
 390         "sl_SI",
 391         "sl_SI.UTF-8",
 392         "sv_SE",
 393         "sv_SE.UTF-8",
 394         "tr_TR",
 395         "tr_TR.UTF-8",
 396         "uk_UA",
 397         "uk_UA.UTF-8",
 398         "zh_CN",
 399         "zh_CN.UTF-8",
 400         "zh_HK",
 401         "zh_HK.UTF-8",
 402         "zh_TW",
 403         "zh_TW.UTF-8"
 404       };
 405     /* Remember which locales are available.  */
 406     unsigned char /* bool */ available[SIZEOF (choices)];
 407     /* Array of remembered results of gl_locale_name_thread.  */
 408     const char *unsaved_names[SIZEOF (choices)][SIZEOF (categories)];
 409     /* Array of remembered results of gl_locale_name_thread, stored in safe
 410        memory.  */
 411     char *saved_names[SIZEOF (choices)][SIZEOF (categories)];
 412     unsigned int j;
 413
 414     for (j = 0; j < SIZEOF (choices); j++)
 415       {
 416         locale_t locale = newlocale (LC_ALL_MASK, choices[j], NULL);
 417         available[j] = (locale != NULL);
 418         if (locale != NULL)
 419           {
 420             unsigned int i;
 421
 422             uselocale (locale);
 423             for (i = 0; i < SIZEOF (categories); i++)
 424               {
 425                 unsaved_names[j][i] = gl_locale_name_thread (categories[i].cat, categories[i].string);
 426                 saved_names[j][i] = strdup (unsaved_names[j][i]);
 427               }
 428             uselocale (LC_GLOBAL_LOCALE);
 429             freelocale (locale);
 430           }
 431       }
 432     /* Verify the unsaved_names are still valid.  */
 433     for (j = 0; j < SIZEOF (choices); j++)
 434       if (available[j])
 435         {
 436           unsigned int i;
 437
 438           for (i = 0; i < SIZEOF (categories); i++)
 439             ASSERT (strcmp (unsaved_names[j][i], saved_names[j][i]) == 0);
 440         }
 441     /* Allocate many locales, without freeing them.  This is an attempt at
 442        overwriting as much of the previously allocated memory as possible.  */
 443     for (j = SIZEOF (choices); j > 0; )
 444       {
 445         j--;
 446         if (available[j])
 447           {
 448             locale_t locale = newlocale (LC_ALL_MASK, choices[j], NULL);
 449             unsigned int i;
 450
 451             ASSERT (locale != NULL);
 452             uselocale (locale);
 453             for (i = 0; i < SIZEOF (categories); i++)
 454               {
 455                 const char *name = gl_locale_name_thread (categories[i].cat, categories[i].string);
 456                 ASSERT (strcmp (unsaved_names[j][i], name) == 0);
 457               }
 458             uselocale (LC_GLOBAL_LOCALE);
 459             freelocale (locale);
 460           }
 461       }
 462     /* Verify the unsaved_names are still valid.  */
 463     for (j = 0; j < SIZEOF (choices); j++)
 464       if (available[j])
 465         {
 466           unsigned int i;
 467
 468           for (i = 0; i < SIZEOF (categories); i++)
 469             {
 470               ASSERT (strcmp (unsaved_names[j][i], saved_names[j][i]) == 0);
 471               free (saved_names[j][i]);
 472             }
 473         }
 474   }
 475 #else
 476   /* Check that gl_locale_name_thread always returns NULL.  */
 477   ASSERT (gl_locale_name_thread (LC_CTYPE, "LC_CTYPE") == NULL);
 478   ASSERT (gl_locale_name_thread (LC_MESSAGES, "LC_MESSAGES") == NULL);
 479 #endif
 480 }
 481
 482 /* Test the gl_locale_name_posix() function.  */
 483 static void
 484 test_locale_name_posix (void)
 485 {
 486   const char *name;
 487
 488   /* Get into a defined state,  */
 489   setlocale (LC_ALL, "en_US.UTF-8");
 490 #if HAVE_NEWLOCALE && HAVE_USELOCALE
 491   uselocale (LC_GLOBAL_LOCALE);
 492 #endif
 493
 494   /* Check that when all environment variables are unset,
 495      gl_locale_name_posix returns either NULL or the default locale.  */
 496   unsetenv ("LC_ALL");
 497   unsetenv ("LC_CTYPE");
 498   unsetenv ("LC_MESSAGES");
 499   unsetenv ("LC_NUMERIC");
 500   unsetenv ("LANG");
 501   setlocale (LC_ALL, "");
 502   name = gl_locale_name_posix (LC_MESSAGES, "LC_MESSAGES");
 503   ASSERT (name == NULL || strcmp (name, gl_locale_name_default ()) == 0);
 504   name = gl_locale_name_posix (LC_NUMERIC, "LC_NUMERIC");
 505   ASSERT (name == NULL || strcmp (name, gl_locale_name_default ()) == 0);
 506
 507   /* Check that an empty environment variable is treated like an unset
 508      environment variable.  */
 509
 510   setenv ("LC_ALL", "", 1);
 511   unsetenv ("LC_CTYPE");
 512   unsetenv ("LC_MESSAGES");
 513   unsetenv ("LANG");
 514   setlocale (LC_ALL, "");
 515   name = gl_locale_name_posix (LC_MESSAGES, "LC_MESSAGES");
 516   ASSERT (name == NULL || strcmp (name, gl_locale_name_default ()) == 0);
 517
 518   unsetenv ("LC_ALL");
 519   setenv ("LC_CTYPE", "", 1);
 520   unsetenv ("LC_MESSAGES");
 521   unsetenv ("LANG");
 522   setlocale (LC_ALL, "");
 523   name = gl_locale_name_posix (LC_MESSAGES, "LC_MESSAGES");
 524   ASSERT (name == NULL || strcmp (name, gl_locale_name_default ()) == 0);
 525
 526   unsetenv ("LC_ALL");
 527   unsetenv ("LC_CTYPE");
 528   setenv ("LC_MESSAGES", "", 1);
 529   unsetenv ("LANG");
 530   setlocale (LC_ALL, "");
 531   name = gl_locale_name_posix (LC_MESSAGES, "LC_MESSAGES");
 532   ASSERT (name == NULL || strcmp (name, gl_locale_name_default ()) == 0);
 533
 534   unsetenv ("LC_ALL");
 535   unsetenv ("LC_CTYPE");
 536   unsetenv ("LC_MESSAGES");
 537   setenv ("LANG", "", 1);
 538   setlocale (LC_ALL, "");
 539   name = gl_locale_name_posix (LC_MESSAGES, "LC_MESSAGES");
 540   ASSERT (name == NULL || strcmp (name, gl_locale_name_default ()) == 0);
 541
 542   /* Check that LC_ALL overrides the others, and LANG is overridden by the
 543      others.  */
 544
 545   setenv ("LC_ALL", "C", 1);
 546   unsetenv ("LC_CTYPE");
 547   unsetenv ("LC_MESSAGES");
 548   unsetenv ("LANG");
 549   setlocale (LC_ALL, "");
 550   name = gl_locale_name_posix (LC_MESSAGES, "LC_MESSAGES");
 551   ASSERT (strcmp (name, "C") == 0);
 552
 553   unsetenv ("LC_ALL");
 554   setenv ("LC_CTYPE", "C", 1);
 555   setenv ("LC_MESSAGES", "C", 1);
 556   unsetenv ("LANG");
 557   setlocale (LC_ALL, "");
 558   name = gl_locale_name_posix (LC_MESSAGES, "LC_MESSAGES");
 559   ASSERT (strcmp (name, "C") == 0);
 560
 561   unsetenv ("LC_ALL");
 562   unsetenv ("LC_CTYPE");
 563   unsetenv ("LC_MESSAGES");
 564   setenv ("LANG", "C", 1);
 565   setlocale (LC_ALL, "");
 566   name = gl_locale_name_posix (LC_MESSAGES, "LC_MESSAGES");
 567   ASSERT (strcmp (name, "C") == 0);
 568
 569   /* Check mixed situations.  */
 570
 571   unsetenv ("LC_ALL");
 572   unsetenv ("LC_CTYPE");
 573   setenv ("LC_MESSAGES", "fr_FR.UTF-8", 1);
 574   setenv ("LANG", "de_DE.UTF-8", 1);
 575   if (setlocale (LC_ALL, "") != NULL)
 576     {
 577       name = gl_locale_name_posix (LC_CTYPE, "LC_CTYPE");
 578       ASSERT (strcmp (name, "de_DE.UTF-8") == 0);
 579       name = gl_locale_name_posix (LC_MESSAGES, "LC_MESSAGES");
 580       ASSERT (strcmp (name, "fr_FR.UTF-8") == 0);
 581     }
 582
 583   unsetenv ("LC_ALL");
 584   unsetenv ("LC_CTYPE");
 585   setenv ("LC_MESSAGES", "fr_FR.UTF-8", 1);
 586   unsetenv ("LANG");
 587   if (setlocale (LC_ALL, "") != NULL)
 588     {
 589       name = gl_locale_name_posix (LC_CTYPE, "LC_CTYPE");
 590       ASSERT (name == NULL || strcmp (name, gl_locale_name_default ()) == 0);
 591       name = gl_locale_name_posix (LC_MESSAGES, "LC_MESSAGES");
 592       ASSERT (strcmp (name, "fr_FR.UTF-8") == 0);
 593     }
 594
 595 #if HAVE_NEWLOCALE && HAVE_USELOCALE
 596   /* Check that gl_locale_name_posix ignores the thread locale.  */
 597   {
 598     locale_t locale = newlocale (LC_ALL_MASK, "fr_FR.UTF-8", NULL);
 599     if (locale != NULL)
 600       {
 601         unsetenv ("LC_ALL");
 602         unsetenv ("LC_CTYPE");
 603         unsetenv ("LC_MESSAGES");
 604         setenv ("LANG", "C", 1);
 605         setlocale (LC_ALL, "");
 606         uselocale (locale);
 607         name = gl_locale_name_posix (LC_MESSAGES, "LC_MESSAGES");
 608         ASSERT (strcmp (name, "C") == 0);
 609         uselocale (LC_GLOBAL_LOCALE);
 610         freelocale (locale);
 611       }
 612   }
 613 #endif
 614 }
 615
 616 /* Test the gl_locale_name_environ() function.  */
 617 static void
 618 test_locale_name_environ (void)
 619 {
 620   const char *name;
 621
 622   /* Get into a defined state,  */
 623   setlocale (LC_ALL, "en_US.UTF-8");
 624 #if HAVE_NEWLOCALE && HAVE_USELOCALE
 625   uselocale (LC_GLOBAL_LOCALE);
 626 #endif
 627
 628   /* Check that when all environment variables are unset,
 629      gl_locale_name_environ returns NULL.  */
 630   unsetenv ("LC_ALL");
 631   unsetenv ("LC_CTYPE");
 632   unsetenv ("LC_MESSAGES");
 633   unsetenv ("LC_NUMERIC");
 634   unsetenv ("LANG");
 635   ASSERT (gl_locale_name_environ (LC_MESSAGES, "LC_MESSAGES") == NULL);
 636   ASSERT (gl_locale_name_environ (LC_NUMERIC, "LC_NUMERIC") == NULL);
 637
 638   /* Check that an empty environment variable is treated like an unset
 639      environment variable.  */
 640
 641   setenv ("LC_ALL", "", 1);
 642   unsetenv ("LC_CTYPE");
 643   unsetenv ("LC_MESSAGES");
 644   unsetenv ("LANG");
 645   ASSERT (gl_locale_name_environ (LC_MESSAGES, "LC_MESSAGES") == NULL);
 646
 647   unsetenv ("LC_ALL");
 648   setenv ("LC_CTYPE", "", 1);
 649   unsetenv ("LC_MESSAGES");
 650   unsetenv ("LANG");
 651   ASSERT (gl_locale_name_environ (LC_MESSAGES, "LC_MESSAGES") == NULL);
 652
 653   unsetenv ("LC_ALL");
 654   unsetenv ("LC_CTYPE");
 655   setenv ("LC_MESSAGES", "", 1);
 656   unsetenv ("LANG");
 657   ASSERT (gl_locale_name_environ (LC_MESSAGES, "LC_MESSAGES") == NULL);
 658
 659   unsetenv ("LC_ALL");
 660   unsetenv ("LC_CTYPE");
 661   unsetenv ("LC_MESSAGES");
 662   setenv ("LANG", "", 1);
 663   ASSERT (gl_locale_name_environ (LC_MESSAGES, "LC_MESSAGES") == NULL);
 664
 665   /* Check that LC_ALL overrides the others, and LANG is overridden by the
 666      others.  */
 667
 668   setenv ("LC_ALL", "C", 1);
 669   unsetenv ("LC_CTYPE");
 670   unsetenv ("LC_MESSAGES");
 671   unsetenv ("LANG");
 672   name = gl_locale_name_environ (LC_MESSAGES, "LC_MESSAGES");
 673   ASSERT (strcmp (name, "C") == 0);
 674
 675   unsetenv ("LC_ALL");
 676   setenv ("LC_CTYPE", "C", 1);
 677   setenv ("LC_MESSAGES", "C", 1);
 678   unsetenv ("LANG");
 679   name = gl_locale_name_environ (LC_MESSAGES, "LC_MESSAGES");
 680   ASSERT (strcmp (name, "C") == 0);
 681
 682   unsetenv ("LC_ALL");
 683   unsetenv ("LC_CTYPE");
 684   unsetenv ("LC_MESSAGES");
 685   setenv ("LANG", "C", 1);
 686   name = gl_locale_name_environ (LC_MESSAGES, "LC_MESSAGES");
 687   ASSERT (strcmp (name, "C") == 0);
 688
 689   /* Check mixed situations.  */
 690
 691   unsetenv ("LC_ALL");
 692   unsetenv ("LC_CTYPE");
 693   setenv ("LC_MESSAGES", "fr_FR.UTF-8", 1);
 694   setenv ("LANG", "de_DE.UTF-8", 1);
 695   name = gl_locale_name_environ (LC_CTYPE, "LC_CTYPE");
 696   ASSERT (strcmp (name, "de_DE.UTF-8") == 0);
 697   name = gl_locale_name_environ (LC_MESSAGES, "LC_MESSAGES");
 698   ASSERT (strcmp (name, "fr_FR.UTF-8") == 0);
 699
 700   unsetenv ("LC_ALL");
 701   unsetenv ("LC_CTYPE");
 702   setenv ("LC_MESSAGES", "fr_FR.UTF-8", 1);
 703   unsetenv ("LANG");
 704   name = gl_locale_name_environ (LC_CTYPE, "LC_CTYPE");
 705   ASSERT (name == NULL);
 706   name = gl_locale_name_environ (LC_MESSAGES, "LC_MESSAGES");
 707   ASSERT (strcmp (name, "fr_FR.UTF-8") == 0);
 708
 709 #if HAVE_NEWLOCALE && HAVE_USELOCALE
 710   /* Check that gl_locale_name_environ ignores the thread locale.  */
 711   {
 712     locale_t locale = newlocale (LC_ALL_MASK, "fr_FR.UTF-8", NULL);
 713     if (locale != NULL)
 714       {
 715         unsetenv ("LC_ALL");
 716         unsetenv ("LC_CTYPE");
 717         unsetenv ("LC_MESSAGES");
 718         setenv ("LANG", "C", 1);
 719         setlocale (LC_ALL, "");
 720         uselocale (locale);
 721         name = gl_locale_name_environ (LC_MESSAGES, "LC_MESSAGES");
 722         ASSERT (strcmp (name, "C") == 0);
 723         uselocale (LC_GLOBAL_LOCALE);
 724         freelocale (locale);
 725       }
 726   }
 727 #endif
 728 }
 729
 730 /* Test the gl_locale_name_default() function.  */
 731 static void
 732 test_locale_name_default (void)
 733 {
 734   const char *name = gl_locale_name_default ();
 735
 736   ASSERT (name != NULL);
 737
 738   /* Only Mac OS X and Windows have a facility for the user to set the default
 739      locale.  */
 740 #if !((defined __APPLE__ && defined __MACH__) || (defined _WIN32 || defined __WIN32__ || defined __CYGWIN__))
 741   ASSERT (strcmp (name, "C") == 0);
 742 #endif
 743
 744 #if HAVE_NEWLOCALE && HAVE_USELOCALE
 745   /* Check that gl_locale_name_default ignores the thread locale.  */
 746   {
 747     locale_t locale = newlocale (LC_ALL_MASK, "fr_FR.UTF-8", NULL);
 748     if (locale != NULL)
 749       {
 750         uselocale (locale);
 751         ASSERT (strcmp (gl_locale_name_default (), name) == 0);
 752         uselocale (LC_GLOBAL_LOCALE);
 753         freelocale (locale);
 754       }
 755   }
 756 #endif
 757 }
 758
 759 int
 760 main ()
 761 {
 762   test_locale_name ();
 763   test_locale_name_thread ();
 764   test_locale_name_posix ();
 765   test_locale_name_environ ();
 766   test_locale_name_default ();
 767
 768   return 0;
 769 }