glib/gtester.c

   1 /* GLib testing framework runner
   2  * Copyright (C) 2007 Sven Herzberg
   3  * Copyright (C) 2007 Tim Janik
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  */
  20 #include <glib.h>
  21 #include <gstdio.h>
  22 #include <string.h>
  23 #include <stdlib.h>
  24 #include <unistd.h>
  25 #include <fcntl.h>
  26 #include <sys/wait.h>
  27 #include <errno.h>
  28 #include <signal.h>
  29
  30 /* the read buffer size in bytes */
  31 #define READ_BUFFER_SIZE 4096
  32
  33 /* --- prototypes --- */
  34 static int      main_selftest   (int    argc,
  35                                  char **argv);
  36 static void     parse_args      (gint           *argc_p,
  37                                  gchar        ***argv_p);
  38
  39 /* --- variables --- */
  40 static GIOChannel  *ioc_report = NULL;
  41 static gboolean     gtester_quiet = FALSE;
  42 static gboolean     gtester_verbose = FALSE;
  43 static gboolean     gtester_list_tests = FALSE;
  44 static gboolean     gtester_selftest = FALSE;
  45 static gboolean     subtest_running = FALSE;
  46 static gint         subtest_exitstatus = 0;
  47 static gboolean     subtest_io_pending = FALSE;
  48 static gboolean     subtest_quiet = TRUE;
  49 static gboolean     subtest_verbose = FALSE;
  50 static gboolean     subtest_mode_fatal = TRUE;
  51 static gboolean     subtest_mode_perf = FALSE;
  52 static gboolean     subtest_mode_quick = TRUE;
  53 static const gchar *subtest_seedstr = NULL;
  54 static gchar       *subtest_last_seed = NULL;
  55 static GSList      *subtest_paths = NULL;
  56 static GSList      *subtest_args = NULL;
  57 static gboolean     testcase_open = FALSE;
  58 static guint        testcase_count = 0;
  59 static guint        testcase_fail_count = 0;
  60 static const gchar *output_filename = NULL;
  61 static guint        log_indent = 0;
  62 static gint         log_fd = -1;
  63
  64 /* --- functions --- */
  65 static const char*
  66 sindent (guint n)
  67 {
  68   static const char spaces[] = "                                                                                                    ";
  69   int l = sizeof (spaces) - 1;
  70   n = MIN (n, l);
  71   return spaces + l - n;
  72 }
  73
  74 static void G_GNUC_PRINTF (1, 2)
  75 test_log_printfe (const char *format,
  76                   ...)
  77 {
  78   char *result;
  79   int r;
  80   va_list args;
  81   va_start (args, format);
  82   result = g_markup_vprintf_escaped (format, args);
  83   va_end (args);
  84   do
  85     r = write (log_fd, result, strlen (result));
  86   while (r < 0 && errno == EINTR);
  87   g_free (result);
  88 }
  89
  90 static void
  91 terminate (void)
  92 {
  93   kill (getpid(), SIGTERM);
  94   abort();
  95 }
  96
  97 static void
  98 testcase_close (long double duration,
  99                 gint        exit_status,
 100                 guint       n_forks)
 101 {
 102   g_return_if_fail (testcase_open > 0);
 103   test_log_printfe ("%s<duration>%.6Lf</duration>\n", sindent (log_indent), duration);
 104   test_log_printfe ("%s<status exit-status=\"%d\" n-forks=\"%d\" result=\"%s\"/>\n",
 105                     sindent (log_indent), exit_status, n_forks,
 106                     exit_status ? "failed" : "success");
 107   log_indent -= 2;
 108   test_log_printfe ("%s</testcase>\n", sindent (log_indent));
 109   testcase_open--;
 110   if (gtester_verbose)
 111     g_print ("%s\n", exit_status ? "FAIL" : "OK");
 112   if (exit_status && subtest_last_seed)
 113     g_print ("GTester: last random seed: %s\n", subtest_last_seed);
 114   if (exit_status)
 115     testcase_fail_count += 1;
 116   if (subtest_mode_fatal && testcase_fail_count)
 117     terminate();
 118 }
 119
 120 static void
 121 test_log_msg (GTestLogMsg *msg)
 122 {
 123   switch (msg->log_type)
 124     {
 125       guint i;
 126       gchar **strv;
 127     case G_TEST_LOG_NONE:
 128       break;
 129     case G_TEST_LOG_ERROR:
 130       strv = g_strsplit (msg->strings[0], "\n", -1);
 131       for (i = 0; strv[i]; i++)
 132         test_log_printfe ("%s<error>%s</error>\n", sindent (log_indent), strv[i]);
 133       g_strfreev (strv);
 134       break;
 135     case G_TEST_LOG_START_BINARY:
 136       test_log_printfe ("%s<binary file=\"%s\"/>\n", sindent (log_indent), msg->strings[0]);
 137       subtest_last_seed = g_strdup (msg->strings[1]);
 138       test_log_printfe ("%s<random-seed>%s</random-seed>\n", sindent (log_indent), subtest_last_seed);
 139       break;
 140     case G_TEST_LOG_LIST_CASE:
 141       g_print ("%s\n", msg->strings[0]);
 142       break;
 143     case G_TEST_LOG_START_CASE:
 144       testcase_count++;
 145       if (gtester_verbose)
 146         {
 147           gchar *sc = g_strconcat (msg->strings[0], ":", NULL);
 148           gchar *sleft = g_strdup_printf ("%-68s", sc);
 149           g_free (sc);
 150           g_print ("%70s ", sleft);
 151           g_free (sleft);
 152         }
 153       g_return_if_fail (testcase_open == 0);
 154       testcase_open++;
 155       test_log_printfe ("%s<testcase path=\"%s\">\n", sindent (log_indent), msg->strings[0]);
 156       log_indent += 2;
 157       break;
 158     case G_TEST_LOG_SKIP_CASE:
 159       if (FALSE && gtester_verbose) /* enable to debug test case skipping logic */
 160         {
 161           gchar *sc = g_strconcat (msg->strings[0], ":", NULL);
 162           gchar *sleft = g_strdup_printf ("%-68s", sc);
 163           g_free (sc);
 164           g_print ("%70s SKIPPED\n", sleft);
 165           g_free (sleft);
 166         }
 167       test_log_printfe ("%s<testcase path=\"%s\" skipped=\"1\"/>\n", sindent (log_indent), msg->strings[0]);
 168       break;
 169     case G_TEST_LOG_STOP_CASE:
 170       testcase_close (msg->nums[2], (int) msg->nums[0], (int) msg->nums[1]);
 171       break;
 172     case G_TEST_LOG_MIN_RESULT:
 173     case G_TEST_LOG_MAX_RESULT:
 174       test_log_printfe ("%s<performance minimize=\"%d\" maximize=\"%d\" value=\"%.16Lg\">\n",
 175                         sindent (log_indent), msg->log_type == G_TEST_LOG_MIN_RESULT, msg->log_type == G_TEST_LOG_MAX_RESULT, msg->nums[0]);
 176       test_log_printfe ("%s%s\n", sindent (log_indent + 2), msg->strings[0]);
 177       test_log_printfe ("%s</performance>\n", sindent (log_indent));
 178       break;
 179     case G_TEST_LOG_MESSAGE:
 180       test_log_printfe ("%s<message>\n%s\n%s</message>\n", sindent (log_indent), msg->strings[0], sindent (log_indent));
 181       break;
 182     }
 183 }
 184
 185 static gboolean
 186 child_report_cb (GIOChannel  *source,
 187                  GIOCondition condition,
 188                  gpointer     data)
 189 {
 190   GTestLogBuffer *tlb = data;
 191   GIOStatus status = G_IO_STATUS_NORMAL;
 192   gboolean first_read_eof = FALSE, first_read = TRUE;
 193   gsize length = 0;
 194   do
 195     {
 196       guint8 buffer[READ_BUFFER_SIZE];
 197       GError *error = NULL;
 198       status = g_io_channel_read_chars (source, (gchar*) buffer, sizeof (buffer), &length, &error);
 199       if (first_read && (condition & G_IO_IN))
 200         {
 201           /* on some unixes (MacOS) we need to detect non-blocking fd EOF
 202            * by an IO_IN select/poll followed by read()==0.
 203            */
 204           first_read_eof = length == 0;
 205         }
 206       first_read = FALSE;
 207       if (length)
 208         {
 209           GTestLogMsg *msg;
 210           g_test_log_buffer_push (tlb, length, buffer);
 211           do
 212             {
 213               msg = g_test_log_buffer_pop (tlb);
 214               if (msg)
 215                 {
 216                   test_log_msg (msg);
 217                   g_test_log_msg_free (msg);
 218                 }
 219             }
 220           while (msg);
 221         }
 222       g_clear_error (&error);
 223       /* ignore the io channel status, which will report intermediate EOFs for non blocking fds */
 224       (void) status;
 225     }
 226   while (length > 0);
 227   /* g_print ("LASTIOSTATE: first_read_eof=%d condition=%d\n", first_read_eof, condition); */
 228   if (first_read_eof || (condition & (G_IO_ERR | G_IO_HUP)))
 229     {
 230       /* if there's no data to read and select() reports an error or hangup,
 231        * the fd must have been closed remotely
 232        */
 233       subtest_io_pending = FALSE;
 234       return FALSE;
 235     }
 236   return TRUE; /* keep polling */
 237 }
 238
 239 static void
 240 child_watch_cb (GPid     pid,
 241                 gint     status,
 242                 gpointer data)
 243 {
 244   g_spawn_close_pid (pid);
 245   if (WIFEXITED (status)) /* normal exit */
 246     subtest_exitstatus = WEXITSTATUS (status);
 247   else /* signal or core dump, etc */
 248     subtest_exitstatus = 0xffffffff;
 249   subtest_running = FALSE;
 250 }
 251
 252 static gchar*
 253 queue_gfree (GSList **slistp,
 254              gchar   *string)
 255 {
 256   *slistp = g_slist_prepend (*slistp, string);
 257   return string;
 258 }
 259
 260 static void
 261 unset_cloexec_fdp (gpointer fdp_data)
 262 {
 263   int r, *fdp = fdp_data;
 264   do
 265     r = fcntl (*fdp, F_SETFD, 0 /* FD_CLOEXEC */);
 266   while (r < 0 && errno == EINTR);
 267 }
 268
 269 static gboolean
 270 launch_test_binary (const char *binary,
 271                     guint       skip_tests)
 272 {
 273   GTestLogBuffer *tlb;
 274   GSList *slist, *free_list = NULL;
 275   GError *error = NULL;
 276   int argc = 0;
 277   const gchar **argv;
 278   GPid pid = 0;
 279   gint report_pipe[2] = { -1, -1 };
 280   guint child_report_cb_id = 0;
 281   gboolean loop_pending;
 282   gint i = 0;
 283
 284   if (pipe (report_pipe) < 0)
 285     {
 286       if (subtest_mode_fatal)
 287         g_error ("Failed to open pipe for test binary: %s: %s", binary, g_strerror (errno));
 288       else
 289         g_warning ("Failed to open pipe for test binary: %s: %s", binary, g_strerror (errno));
 290       return FALSE;
 291     }
 292
 293   /* setup argc */
 294   for (slist = subtest_args; slist; slist = slist->next)
 295     argc++;
 296   /* argc++; */
 297   if (subtest_quiet)
 298     argc++;
 299   if (subtest_verbose)
 300     argc++;
 301   if (!subtest_mode_fatal)
 302     argc++;
 303   if (subtest_mode_quick)
 304     argc++;
 305   else
 306     argc++;
 307   if (subtest_mode_perf)
 308     argc++;
 309   if (gtester_list_tests)
 310     argc++;
 311   if (subtest_seedstr)
 312     argc++;
 313   argc++;
 314   if (skip_tests)
 315     argc++;
 316   for (slist = subtest_paths; slist; slist = slist->next)
 317     argc++;
 318
 319   /* setup argv */
 320   argv = g_malloc ((argc + 2) * sizeof(gchar *));
 321   argv[i++] = binary;
 322   for (slist = subtest_args; slist; slist = slist->next)
 323     argv[i++] = (gchar*) slist->data;
 324   /* argv[i++] = "--debug-log"; */
 325   if (subtest_quiet)
 326     argv[i++] = "--quiet";
 327   if (subtest_verbose)
 328     argv[i++] = "--verbose";
 329   if (!subtest_mode_fatal)
 330     argv[i++] = "--keep-going";
 331   if (subtest_mode_quick)
 332     argv[i++] = "-m=quick";
 333   else
 334     argv[i++] = "-m=slow";
 335   if (subtest_mode_perf)
 336     argv[i++] = "-m=perf";
 337   if (gtester_list_tests)
 338     argv[i++] = "-l";
 339   if (subtest_seedstr)
 340     argv[i++] = queue_gfree (&free_list, g_strdup_printf ("--seed=%s", subtest_seedstr));
 341   argv[i++] = queue_gfree (&free_list, g_strdup_printf ("--GTestLogFD=%u", report_pipe[1]));
 342   if (skip_tests)
 343     argv[i++] = queue_gfree (&free_list, g_strdup_printf ("--GTestSkipCount=%u", skip_tests));
 344   for (slist = subtest_paths; slist; slist = slist->next)
 345     argv[i++] = queue_gfree (&free_list, g_strdup_printf ("-p=%s", (gchar*) slist->data));
 346   argv[i++] = NULL;
 347
 348   g_spawn_async_with_pipes (NULL, /* g_get_current_dir() */
 349                             (gchar**) argv,
 350                             NULL, /* envp */
 351                             G_SPAWN_DO_NOT_REAP_CHILD, /* G_SPAWN_SEARCH_PATH */
 352                             unset_cloexec_fdp, &report_pipe[1], /* pre-exec callback */
 353                             &pid,
 354                             NULL,       /* standard_input */
 355                             NULL,       /* standard_output */
 356                             NULL,       /* standard_error */
 357                             &error);
 358   g_slist_foreach (free_list, (void(*)(void*,void*)) g_free, NULL);
 359   g_slist_free (free_list);
 360   free_list = NULL;
 361   close (report_pipe[1]);
 362
 363   if (!gtester_quiet)
 364     g_print ("(pid=%lu)\n", (unsigned long) pid);
 365
 366   if (error)
 367     {
 368       close (report_pipe[0]);
 369       if (subtest_mode_fatal)
 370         g_error ("Failed to execute test binary: %s: %s", argv[0], error->message);
 371       else
 372         g_warning ("Failed to execute test binary: %s: %s", argv[0], error->message);
 373       g_clear_error (&error);
 374       g_free (argv);
 375       return FALSE;
 376     }
 377   g_free (argv);
 378
 379   subtest_running = TRUE;
 380   subtest_io_pending = TRUE;
 381   tlb = g_test_log_buffer_new();
 382   if (report_pipe[0] >= 0)
 383     {
 384       ioc_report = g_io_channel_unix_new (report_pipe[0]);
 385       g_io_channel_set_flags (ioc_report, G_IO_FLAG_NONBLOCK, NULL);
 386       g_io_channel_set_encoding (ioc_report, NULL, NULL);
 387       g_io_channel_set_buffered (ioc_report, FALSE);
 388       child_report_cb_id = g_io_add_watch_full (ioc_report, G_PRIORITY_DEFAULT - 1, G_IO_IN | G_IO_ERR | G_IO_HUP, child_report_cb, tlb, NULL);
 389       g_io_channel_unref (ioc_report);
 390     }
 391   g_child_watch_add_full (G_PRIORITY_DEFAULT + 1, pid, child_watch_cb, NULL, NULL);
 392
 393   loop_pending = g_main_context_pending (NULL);
 394   while (subtest_running ||     /* FALSE once child exits */
 395          subtest_io_pending ||  /* FALSE once ioc_report closes */
 396          loop_pending)          /* TRUE while idler, etc are running */
 397     {
 398       /* g_print ("LOOPSTATE: subtest_running=%d subtest_io_pending=%d\n", subtest_running, subtest_io_pending); */
 399       /* check for unexpected hangs that are not signalled on report_pipe */
 400       if (!subtest_running &&   /* child exited */
 401           subtest_io_pending && /* no EOF detected on report_pipe */
 402           !loop_pending)        /* no IO events pending however */
 403         break;
 404       g_main_context_iteration (NULL, TRUE);
 405       loop_pending = g_main_context_pending (NULL);
 406     }
 407
 408   g_source_remove (child_report_cb_id);
 409   close (report_pipe[0]);
 410   g_test_log_buffer_free (tlb);
 411
 412   return TRUE;
 413 }
 414
 415 static void
 416 launch_test (const char *binary)
 417 {
 418   gboolean success = TRUE;
 419   GTimer *btimer = g_timer_new();
 420   gboolean need_restart;
 421   testcase_count = 0;
 422   testcase_fail_count = 0;
 423   if (!gtester_quiet)
 424     g_print ("TEST: %s... ", binary);
 425
 426  retry:
 427   test_log_printfe ("%s<testbinary path=\"%s\">\n", sindent (log_indent), binary);
 428   log_indent += 2;
 429   g_timer_start (btimer);
 430   subtest_exitstatus = 0;
 431   success &= launch_test_binary (binary, testcase_count);
 432   success &= subtest_exitstatus == 0;
 433   need_restart = testcase_open != 0;
 434   if (testcase_open)
 435     testcase_close (0, -256, 0);
 436   g_timer_stop (btimer);
 437   test_log_printfe ("%s<duration>%.6f</duration>\n", sindent (log_indent), g_timer_elapsed (btimer, NULL));
 438   log_indent -= 2;
 439   test_log_printfe ("%s</testbinary>\n", sindent (log_indent));
 440   g_free (subtest_last_seed);
 441   subtest_last_seed = NULL;
 442   if (need_restart)
 443     {
 444       /* restart test binary, skipping processed test cases */
 445       goto retry;
 446     }
 447
 448   if (!gtester_quiet)
 449     g_print ("%s: %s\n", testcase_fail_count || !success ? "FAIL" : "PASS", binary);
 450   g_timer_destroy (btimer);
 451   if (subtest_mode_fatal && !success)
 452     terminate();
 453 }
 454
 455 static void
 456 usage (gboolean just_version)
 457 {
 458   if (just_version)
 459     {
 460       g_print ("gtester version %d.%d.%d\n", GLIB_MAJOR_VERSION, GLIB_MINOR_VERSION, GLIB_MICRO_VERSION);
 461       return;
 462     }
 463   g_print ("Usage: gtester [OPTIONS] testprogram...\n");
 464   /*        12345678901234567890123456789012345678901234567890123456789012345678901234567890 */
 465   g_print ("Options:\n");
 466   g_print ("  -h, --help                  show this help message\n");
 467   g_print ("  -v, --version               print version informations\n");
 468   g_print ("  --g-fatal-warnings          make warnings fatal (abort)\n");
 469   g_print ("  -k, --keep-going            continue running after tests failed\n");
 470   g_print ("  -l                          list paths of available test cases\n");
 471   g_print ("  -m=perf, -m=slow, -m=quick -m=thorough\n");
 472   g_print ("                              run test cases in mode perf, slow/thorough or quick (default)\n");
 473   g_print ("  -p=TESTPATH                 only start test cases matching TESTPATH\n");
 474   g_print ("  --seed=SEEDSTRING           start all tests with random number seed SEEDSTRING\n");
 475   g_print ("  -o=LOGFILE                  write the test log to LOGFILE\n");
 476   g_print ("  -q, --quiet                 suppress per test binary output\n");
 477   g_print ("  --verbose                   report success per testcase\n");
 478 }
 479
 480 static void
 481 parse_args (gint    *argc_p,
 482             gchar ***argv_p)
 483 {
 484   guint argc = *argc_p;
 485   gchar **argv = *argv_p;
 486   guint i, e;
 487   /* parse known args */
 488   for (i = 1; i < argc; i++)
 489     {
 490       if (strcmp (argv[i], "--g-fatal-warnings") == 0)
 491         {
 492           GLogLevelFlags fatal_mask = (GLogLevelFlags) g_log_set_always_fatal ((GLogLevelFlags) G_LOG_FATAL_MASK);
 493           fatal_mask = (GLogLevelFlags) (fatal_mask | G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL);
 494           g_log_set_always_fatal (fatal_mask);
 495           argv[i] = NULL;
 496         }
 497       else if (strcmp (argv[i], "--gtester-selftest") == 0)
 498         {
 499           gtester_selftest = TRUE;
 500           argv[i] = NULL;
 501           break;        /* stop parsing regular gtester arguments */
 502         }
 503       else if (strcmp (argv[i], "-h") == 0 || strcmp (argv[i], "--help") == 0)
 504         {
 505           usage (FALSE);
 506           exit (0);
 507           argv[i] = NULL;
 508         }
 509       else if (strcmp (argv[i], "-v") == 0 || strcmp (argv[i], "--version") == 0)
 510         {
 511           usage (TRUE);
 512           exit (0);
 513           argv[i] = NULL;
 514         }
 515       else if (strcmp (argv[i], "--keep-going") == 0 ||
 516                strcmp (argv[i], "-k") == 0)
 517         {
 518           subtest_mode_fatal = FALSE;
 519           argv[i] = NULL;
 520         }
 521       else if (strcmp ("-p", argv[i]) == 0 || strncmp ("-p=", argv[i], 3) == 0)
 522         {
 523           gchar *equal = argv[i] + 2;
 524           if (*equal == '=')
 525             subtest_paths = g_slist_prepend (subtest_paths, equal + 1);
 526           else if (i + 1 < argc)
 527             {
 528               argv[i++] = NULL;
 529               subtest_paths = g_slist_prepend (subtest_paths, argv[i]);
 530             }
 531           argv[i] = NULL;
 532         }
 533       else if (strcmp ("--test-arg", argv[i]) == 0 || strncmp ("--test-arg=", argv[i], 11) == 0)
 534         {
 535           gchar *equal = argv[i] + 10;
 536           if (*equal == '=')
 537             subtest_args = g_slist_prepend (subtest_args, equal + 1);
 538           else if (i + 1 < argc)
 539             {
 540               argv[i++] = NULL;
 541               subtest_args = g_slist_prepend (subtest_args, argv[i]);
 542             }
 543           argv[i] = NULL;
 544         }
 545       else if (strcmp ("-o", argv[i]) == 0 || strncmp ("-o=", argv[i], 3) == 0)
 546         {
 547           gchar *equal = argv[i] + 2;
 548           if (*equal == '=')
 549             output_filename = equal + 1;
 550           else if (i + 1 < argc)
 551             {
 552               argv[i++] = NULL;
 553               output_filename = argv[i];
 554             }
 555           argv[i] = NULL;
 556         }
 557       else if (strcmp ("-m", argv[i]) == 0 || strncmp ("-m=", argv[i], 3) == 0)
 558         {
 559           gchar *equal = argv[i] + 2;
 560           const gchar *mode = "";
 561           if (*equal == '=')
 562             mode = equal + 1;
 563           else if (i + 1 < argc)
 564             {
 565               argv[i++] = NULL;
 566               mode = argv[i];
 567             }
 568           if (strcmp (mode, "perf") == 0)
 569             subtest_mode_perf = TRUE;
 570           else if (strcmp (mode, "slow") == 0 || strcmp (mode, "thorough") == 0)
 571             subtest_mode_quick = FALSE;
 572           else if (strcmp (mode, "quick") == 0)
 573             {
 574               subtest_mode_quick = TRUE;
 575               subtest_mode_perf = FALSE;
 576             }
 577           else
 578             g_error ("unknown test mode: -m %s", mode);
 579           argv[i] = NULL;
 580         }
 581       else if (strcmp ("-q", argv[i]) == 0 || strcmp ("--quiet", argv[i]) == 0)
 582         {
 583           gtester_quiet = TRUE;
 584           gtester_verbose = FALSE;
 585           argv[i] = NULL;
 586         }
 587       else if (strcmp ("--verbose", argv[i]) == 0)
 588         {
 589           gtester_quiet = FALSE;
 590           gtester_verbose = TRUE;
 591           argv[i] = NULL;
 592         }
 593       else if (strcmp ("-l", argv[i]) == 0)
 594         {
 595           gtester_list_tests = TRUE;
 596           argv[i] = NULL;
 597         }
 598       else if (strcmp ("--seed", argv[i]) == 0 || strncmp ("--seed=", argv[i], 7) == 0)
 599         {
 600           gchar *equal = argv[i] + 6;
 601           if (*equal == '=')
 602             subtest_seedstr = equal + 1;
 603           else if (i + 1 < argc)
 604             {
 605               argv[i++] = NULL;
 606               subtest_seedstr = argv[i];
 607             }
 608           argv[i] = NULL;
 609         }
 610     }
 611   /* collapse argv */
 612   e = 1;
 613   for (i = 1; i < argc; i++)
 614     if (argv[i])
 615       {
 616         argv[e++] = argv[i];
 617         if (i >= e)
 618           argv[i] = NULL;
 619       }
 620   *argc_p = e;
 621 }
 622
 623 int
 624 main (int    argc,
 625       char **argv)
 626 {
 627   guint ui;
 628
 629   /* some unices need SA_RESTART for SIGCHLD to return -EAGAIN for io.
 630    * we must fiddle with sigaction() *before* glib is used, otherwise
 631    * we could revoke signal hanmdler setups from glib initialization code.
 632    */
 633   if (TRUE)
 634     {
 635       struct sigaction sa;
 636       struct sigaction osa;
 637       sa.sa_handler = SIG_DFL;
 638       sigfillset (&sa.sa_mask);
 639       sa.sa_flags = SA_RESTART;
 640       sigaction (SIGCHLD, &sa, &osa);
 641     }
 642
 643   g_set_prgname (argv[0]);
 644   parse_args (&argc, &argv);
 645   if (gtester_selftest)
 646     return main_selftest (argc, argv);
 647
 648   if (argc <= 1)
 649     {
 650       usage (FALSE);
 651       return 1;
 652     }
 653
 654   if (output_filename)
 655     {
 656       log_fd = g_open (output_filename, O_WRONLY | O_CREAT | O_TRUNC, 0666);
 657       if (log_fd < 0)
 658         g_error ("Failed to open log file '%s': %s", output_filename, g_strerror (errno));
 659     }
 660
 661   test_log_printfe ("<?xml version=\"1.0\"?>\n");
 662   test_log_printfe ("%s<gtester>\n", sindent (log_indent));
 663   log_indent += 2;
 664   for (ui = 1; ui < argc; ui++)
 665     {
 666       const char *binary = argv[ui];
 667       launch_test (binary);
 668       /* we only get here on success or if !subtest_mode_fatal */
 669     }
 670   log_indent -= 2;
 671   test_log_printfe ("%s</gtester>\n", sindent (log_indent));
 672
 673   close (log_fd);
 674
 675   return testcase_fail_count == 0 ? 0 : 1;
 676 }
 677
 678 static void
 679 fixture_setup (guint        *fix,
 680                gconstpointer test_data)
 681 {
 682   g_assert_cmphex (*fix, ==, 0);
 683   *fix = 0xdeadbeef;
 684 }
 685 static void
 686 fixture_test (guint        *fix,
 687               gconstpointer test_data)
 688 {
 689   g_assert_cmphex (*fix, ==, 0xdeadbeef);
 690   g_test_message ("This is a test message API test message.");
 691   g_test_bug_base ("http://www.example.com/bugtracker/");
 692   g_test_bug ("123");
 693   g_test_bug_base ("http://www.example.com/bugtracker?bugnum=%s;cmd=showbug");
 694   g_test_bug ("456");
 695 }
 696 static void
 697 fixture_teardown (guint        *fix,
 698                   gconstpointer test_data)
 699 {
 700   g_assert_cmphex (*fix, ==, 0xdeadbeef);
 701 }
 702
 703 static int
 704 main_selftest (int    argc,
 705                char **argv)
 706 {
 707   /* gtester main() for --gtester-selftest invokations */
 708   g_test_init (&argc, &argv, NULL);
 709   g_test_add ("/gtester/fixture-test", guint, NULL, fixture_setup, fixture_test, fixture_teardown);
 710   return g_test_run();
 711 }