tests/test-posixtm.c

   1 /* Test that posixtime works as required.
   2    Copyright (C) 2009-2024 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 <https://www.gnu.org/licenses/>.  */
  16
  17 /* Written by Jim Meyering.  */
  18
  19 #include <config.h>
  20
  21 #include "posixtm.h"
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <stdint.h>
  27 #include <time.h>
  28
  29 #include "intprops.h"
  30 #include "macros.h"
  31
  32 struct posixtm_test
  33 {
  34   char const *in;
  35   unsigned int syntax_bits;
  36   bool valid;
  37   int_least64_t t_expected;
  38 };
  39
  40 /* Test mainly with syntax_bits == LY.  */
  41 enum { LY = PDS_CENTURY | PDS_SECONDS };
  42
  43 static struct posixtm_test const T[] =
  44   {
  45     /* no year specified; cross-check via another posixtime call */
  46     { "12131415.16",     LY, 1,            0}, /* ??? Dec 13 14:15:16 ???? */
  47     { "12131415",        LY, 1,            0}, /* ??? Dec 13 14:15:00 ???? */
  48
  49 #if !((defined __APPLE__ && defined __MACH__) || defined __sun \
  50       || (defined _WIN32 && !defined __CYGWIN__))
  51     /* These two tests fail on 64-bit Mac OS X 10.5 and on 64-bit Solaris up
  52        through at least Solaris 11.3, which is off by one day for timestamps
  53        before 0001-01-01 00:00:00 UTC.  */
  54     { "000001010000.00", LY, 1,
  55                       - INT64_C (62167219200)},/* Sat Jan  1 00:00:00 0    */
  56     { "000012312359.59", LY, 1,
  57                       - INT64_C (62135596801)},/* Fri Dec 31 23:59:59 0    */
  58 #endif
  59 #if !(defined _WIN32 && !defined __CYGWIN__)
  60     { "000101010000.00", LY, 1,
  61                       - INT64_C (62135596800)},/* Sat Jan  1 00:00:00 1    */
  62     { "190112132045.51", LY, 1,
  63                        - INT64_C (2147483649)},/* Fri Dec 13 20:45:51 1901 */
  64     { "190112132045.52", LY, 1,
  65                        - INT64_C (2147483648)},/* Fri Dec 13 20:45:52 1901 */
  66     { "190112132045.53", LY, 1,  -2147483647}, /* Fri Dec 13 20:45:53 1901 */
  67     { "190112132046.52", LY, 1,  -2147483588}, /* Fri Dec 13 20:46:52 1901 */
  68     { "190112132145.52", LY, 1,  -2147480048}, /* Fri Dec 13 21:45:52 1901 */
  69     { "190112142045.52", LY, 1,  -2147397248}, /* Sat Dec 14 20:45:52 1901 */
  70     { "190201132045.52", LY, 1,  -2144805248}, /* Mon Jan 13 20:45:52 1902 */
  71     { "196912312359.59", LY, 1,           -1}, /* Wed Dec 31 23:59:59 1969 */
  72 #endif
  73     { "197001010000.00", LY, 1,            0}, /* Thu Jan  1 00:00:00 1970 */
  74     { "197001010000.01", LY, 1,            1}, /* Thu Jan  1 00:00:01 1970 */
  75     { "197001010001.00", LY, 1,           60}, /* Thu Jan  1 00:01:00 1970 */
  76     { "197001010000.60", LY, 1,           60}, /* Thu Jan  1 00:01:00 1970 */
  77     { "197001010100.00", LY, 1,         3600}, /* Thu Jan  1 01:00:00 1970 */
  78     { "197001020000.00", LY, 1,        86400}, /* Fri Jan  2 00:00:00 1970 */
  79     { "197002010000.00", LY, 1,      2678400}, /* Sun Feb  1 00:00:00 1970 */
  80     { "197101010000.00", LY, 1,     31536000}, /* Fri Jan  1 00:00:00 1971 */
  81     { "197001000000.00", LY, 0,            0}, /* -- */
  82     { "197000010000.00", LY, 0,            0}, /* -- */
  83     { "197001010060.00", LY, 0,            0}, /* -- */
  84     { "197001012400.00", LY, 0,            0}, /* -- */
  85     { "197001320000.00", LY, 0,            0}, /* -- */
  86     { "197013010000.00", LY, 0,            0}, /* -- */
  87     { "203801190314.06", LY, 1,   2147483646}, /* Tue Jan 19 03:14:06 2038 */
  88     { "203801190314.07", LY, 1,   2147483647}, /* Tue Jan 19 03:14:07 2038 */
  89     { "203801190314.08", LY, 1,
  90                        INT64_C (  2147483648)},/* Tue Jan 19 03:14:08 2038 */
  91 #if !(defined _WIN32 && !defined __CYGWIN__)
  92     { "999912312359.59", LY, 1,
  93                        INT64_C (253402300799)},/* Fri Dec 31 23:59:59 9999 */
  94 #endif
  95     { "1112131415",      LY, 1,   1323785700}, /* Tue Dec 13 14:15:00 2011 */
  96     { "1112131415.16",   LY, 1,   1323785716}, /* Tue Dec 13 14:15:16 2011 */
  97     { "201112131415.16", LY, 1,   1323785716}, /* Tue Dec 13 14:15:16 2011 */
  98 #if !(defined _WIN32 && !defined __CYGWIN__)
  99     { "191112131415.16", LY, 1,  -1831974284}, /* Wed Dec 13 14:15:16 1911 */
 100 #endif
 101     { "203712131415.16", LY, 1,   2144326516}, /* Sun Dec 13 14:15:16 2037 */
 102     { "3712131415.16",   LY, 1,   2144326516}, /* Sun Dec 13 14:15:16 2037 */
 103     { "6812131415.16",   LY, 1,
 104                        INT64_C (  3122633716)},/* Thu Dec 13 14:15:16 2068 */
 105 #if !(defined _WIN32 && !defined __CYGWIN__)
 106     { "6912131415.16",   LY, 1,     -1590284}, /* Sat Dec 13 14:15:16 1969 */
 107 #endif
 108     { "7012131415.16",   LY, 1,     29945716}, /* Sun Dec 13 14:15:16 1970 */
 109     { "1213141599",      PDS_TRAILING_YEAR,
 110                              1,    945094500}, /* Mon Dec 13 14:15:00 1999 */
 111     { "1213141500",      PDS_TRAILING_YEAR,
 112                              1,    976716900}, /* Wed Dec 13 14:15:00 2000 */
 113     { NULL,               0, 0,            0}
 114   };
 115
 116 int
 117 main (void)
 118 {
 119   unsigned int i;
 120   char curr_year_str[30];
 121   struct tm *tm;
 122   time_t t_now;
 123   int err;
 124   size_t n_bytes;
 125
 126   /* The above test data requires Universal Time, e.g., TZ="UTC0".  */
 127   err = setenv ("TZ", "UTC0", 1);
 128   ASSERT (err == 0);
 129
 130   t_now = time (NULL);
 131   ASSERT (t_now != (time_t) -1);
 132   tm = localtime (&t_now);
 133   ASSERT (tm);
 134   n_bytes = strftime (curr_year_str, sizeof curr_year_str, "%Y", tm);
 135   ASSERT (0 < n_bytes);
 136
 137   for (i = 0; T[i].in; i++)
 138     {
 139       time_t t_out;
 140       time_t t_exp;
 141       bool ok;
 142
 143       /* Some tests assume that time_t is signed.
 144          If it is unsigned and the result is negative, skip the test. */
 145       if (T[i].t_expected < 0 && ! TYPE_SIGNED (time_t))
 146         {
 147           printf ("skipping %s: result is negative, "
 148                   "but your time_t is unsigned\n", T[i].in);
 149           continue;
 150         }
 151
 152       if (! (TYPE_MINIMUM (time_t) <= T[i].t_expected
 153              && T[i].t_expected <= TYPE_MAXIMUM (time_t)))
 154         {
 155           printf ("skipping %s: result is out of range of your time_t\n",
 156                   T[i].in);
 157           continue;
 158         }
 159
 160       t_exp = T[i].t_expected;
 161
 162       /* If an input string does not specify the year number, determine
 163          the expected output by calling posixtime with an otherwise
 164          equivalent string that starts with the current year.  */
 165       if (8 <= strlen (T[i].in)
 166           && (T[i].in[8] == '.' || T[i].in[8] == '\0'))
 167         {
 168           char tmp_buf[20];
 169           stpcpy (stpcpy (tmp_buf, curr_year_str), T[i].in);
 170           ASSERT (posixtime (&t_exp, tmp_buf, T[i].syntax_bits));
 171         }
 172
 173       ok = posixtime (&t_out, T[i].in, T[i].syntax_bits);
 174       if (ok != !!T[i].valid)
 175         {
 176           printf ("%s return value mismatch: got %d, expected %d\n",
 177                   T[i].in, !!ok, T[i].valid);
 178           test_exit_status = EXIT_FAILURE;
 179           continue;
 180         }
 181
 182       if (!ok)
 183         continue;
 184
 185       if (t_out != t_exp)
 186         {
 187           printf ("%s mismatch (-: actual; +:expected)\n-%12ld\n+%12ld\n",
 188                   T[i].in, (long) t_out, (long) t_exp);
 189           test_exit_status = EXIT_FAILURE;
 190         }
 191     }
 192
 193   return test_exit_status;
 194 }
 195
 196 /*
 197 Local Variables:
 198 indent-tabs-mode: nil
 199 End:
 200 */