support/tst-support_record_failure.c

   1 /* Test support_record_failure state sharing.
   2    Copyright (C) 2016-2020 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C 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 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C 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 the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <support/check.h>
  20 #include <support/support.h>
  21 #include <support/test-driver.h>
  22 #include <support/xunistd.h>
  23
  24 #include <getopt.h>
  25 #include <stdbool.h>
  26 #include <stdlib.h>
  27 #include <stdio.h>
  28 #include <string.h>
  29
  30 static int exit_status_with_failure = -1;
  31 static bool test_verify;
  32 static bool test_verify_exit;
  33 enum
  34   {
  35     OPT_STATUS = 10001,
  36     OPT_TEST_VERIFY,
  37     OPT_TEST_VERIFY_EXIT,
  38   };
  39 #define CMDLINE_OPTIONS                                                 \
  40   { "status", required_argument, NULL, OPT_STATUS },                    \
  41   { "test-verify", no_argument, NULL, OPT_TEST_VERIFY },                \
  42   { "test-verify-exit", no_argument, NULL, OPT_TEST_VERIFY_EXIT },
  43 static void
  44 cmdline_process (int c)
  45 {
  46   switch (c)
  47     {
  48     case OPT_STATUS:
  49       exit_status_with_failure = atoi (optarg);
  50       break;
  51     case OPT_TEST_VERIFY:
  52       test_verify = true;
  53       break;
  54     case OPT_TEST_VERIFY_EXIT:
  55       test_verify_exit = true;
  56       break;
  57     }
  58 }
  59 #define CMDLINE_PROCESS cmdline_process
  60
  61 static void
  62 check_failure_reporting (int phase, int zero, int unsupported)
  63 {
  64   int status = support_report_failure (0);
  65   if (status != zero)
  66     {
  67       printf ("real-error (phase %d): support_report_failure (0) == %d\n",
  68               phase, status);
  69       exit (1);
  70     }
  71   status = support_report_failure (1);
  72   if (status != 1)
  73     {
  74       printf ("real-error (phase %d): support_report_failure (1) == %d\n",
  75               phase, status);
  76       exit (1);
  77     }
  78   status = support_report_failure (2);
  79   if (status != 2)
  80     {
  81       printf ("real-error (phase %d): support_report_failure (2) == %d\n",
  82               phase, status);
  83       exit (1);
  84     }
  85   status = support_report_failure (EXIT_UNSUPPORTED);
  86   if (status != unsupported)
  87     {
  88       printf ("real-error (phase %d): "
  89               "support_report_failure (EXIT_UNSUPPORTED) == %d\n",
  90               phase, status);
  91       exit (1);
  92     }
  93 }
  94
  95 static int
  96 do_test (void)
  97 {
  98   if (exit_status_with_failure >= 0)
  99     {
 100       /* External invocation with requested error status.  Used by
 101          tst-support_report_failure-2.sh.  */
 102       support_record_failure ();
 103       return exit_status_with_failure;
 104     }
 105   TEST_VERIFY (true);
 106   TEST_VERIFY_EXIT (true);
 107   if (test_verify)
 108     {
 109       TEST_VERIFY (false);
 110       if (test_verbose)
 111         printf ("info: execution passed failed TEST_VERIFY\n");
 112       return 2; /* Expected exit status.  */
 113     }
 114   if (test_verify_exit)
 115     {
 116       TEST_VERIFY_EXIT (false);
 117       return 3; /* Not reached.  Expected exit status is 1.  */
 118     }
 119
 120   printf ("info: This test tests the test framework.\n"
 121           "info: It reports some expected errors on stdout.\n");
 122
 123   /* Check that the status is passed through unchanged.  */
 124   check_failure_reporting (1, 0, EXIT_UNSUPPORTED);
 125
 126   /* Check state propagation from a subprocess.  */
 127   pid_t pid = xfork ();
 128   if (pid == 0)
 129     {
 130       support_record_failure ();
 131       _exit (0);
 132     }
 133   int status;
 134   xwaitpid (pid, &status, 0);
 135   if (status != 0)
 136     {
 137       printf ("real-error: incorrect status from subprocess: %d\n", status);
 138       return 1;
 139     }
 140   check_failure_reporting (2, 1, 1);
 141
 142   /* Also test directly in the parent process.  */
 143   support_record_failure_reset ();
 144   check_failure_reporting (3, 0, EXIT_UNSUPPORTED);
 145   support_record_failure ();
 146   check_failure_reporting (4, 1, 1);
 147
 148   /* We need to mask the failure above.  */
 149   support_record_failure_reset ();
 150   return 0;
 151 }
 152
 153 #include <support/test-driver.c>