tests/date-test.c

   1 #undef G_DISABLE_ASSERT
   2 #undef G_LOG_DOMAIN
   3
   4 #include "glib.h"
   5
   6 #include <stdio.h>
   7 #include <string.h>
   8 #include <stdlib.h>
   9 #include <locale.h>
  10 #include <time.h>
  11
  12 gboolean failed = FALSE;
  13 guint32 passed = 0;
  14 guint32 notpassed = 0;
  15
  16 #define TEST(m,cond)    G_STMT_START { failed = !(cond); \
  17 if (failed) \
  18   exit(1); \
  19 } G_STMT_END
  20
  21 void g_date_debug_print(GDate* d)
  22 {
  23 }
  24
  25 void g_print_dummy(const char *format, ...)
  26 {
  27 }
  28
  29 void fflush_dummy (FILE *f)
  30 {
  31 }
  32
  33
  34 #define g_print g_print_dummy
  35 #define fflush fflush_dummy
  36
  37 int main(int argc, char** argv)
  38 {
  39   GDate* d;
  40   guint32 j;
  41   GDateMonth m;
  42   GDateYear y, prev_y;
  43   GDateDay day;
  44   gchar buf[101];
  45   gchar* loc;
  46
  47   /* Try to get all the leap year cases. */
  48   GDateYear check_years[] = {
  49     1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
  50     11, 12, 13, 14, 98, 99, 100, 101, 102, 103, 397,
  51     398, 399, 400, 401, 402, 403, 404, 405, 406,
  52     1598, 1599, 1600, 1601, 1602, 1650, 1651,
  53     1897, 1898, 1899, 1900, 1901, 1902, 1903,
  54     1961, 1962, 1963, 1964, 1965, 1967,
  55     1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976,
  56     1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985,
  57     1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
  58     1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
  59     2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
  60     3000, 3001, 3002, 3998, 3999, 4000, 4001, 4002, 4003
  61   };
  62
  63   guint n_check_years = sizeof(check_years)/sizeof(GDateYear);
  64
  65   guint i = 0;
  66   gboolean discontinuity = FALSE;
  67
  68   g_print("checking GDate...");
  69
  70   TEST("sizeof(GDate) is not more than 8 bytes on this platform", sizeof(GDate) < 9);
  71
  72   d = g_date_new();
  73
  74   TEST("Empty constructor produces invalid date", !g_date_valid(d));
  75
  76   g_date_free(d);
  77
  78   d = g_date_new_dmy(1,1,1);
  79
  80   TEST("January 1, Year 1 created and valid", g_date_valid(d));
  81
  82   j = g_date_get_julian(d);
  83
  84   TEST("January 1, Year 1 is Julian date 1", j == 1);
  85
  86   TEST("Returned month is January", g_date_get_month(d) == G_DATE_JANUARY);
  87   TEST("Returned day is 1", g_date_get_day(d) == 1);
  88   TEST("Returned year is 1", g_date_get_year(d) == 1);
  89
  90   TEST("Bad month is invalid", !g_date_valid_month(G_DATE_BAD_MONTH));
  91   TEST("Month 13 is invalid",  !g_date_valid_month(13));
  92   TEST("Bad day is invalid",   !g_date_valid_day(G_DATE_BAD_DAY));
  93   TEST("Day 32 is invalid",     !g_date_valid_day(32));
  94   TEST("Bad year is invalid",  !g_date_valid_year(G_DATE_BAD_YEAR));
  95   TEST("Bad julian is invalid", !g_date_valid_julian(G_DATE_BAD_JULIAN));
  96   TEST("Bad weekday is invalid", !g_date_valid_weekday(G_DATE_BAD_WEEKDAY));
  97   TEST("Year 2000 is a leap year", g_date_is_leap_year(2000));
  98   TEST("Year 1999 is not a leap year", !g_date_is_leap_year(1999));
  99   TEST("Year 1996 is a leap year", g_date_is_leap_year(1996));
 100   TEST("Year 1600 is a leap year", g_date_is_leap_year(1600));
 101   TEST("Year 2100 is not a leap year", !g_date_is_leap_year(2100));
 102   TEST("Year 1800 is not a leap year", !g_date_is_leap_year(1800));
 103
 104   g_date_free(d);
 105
 106   loc = setlocale(LC_ALL,"");
 107   if (loc)
 108     g_print("\nLocale set to %s\n", loc);
 109   else
 110     g_print("\nLocale unchanged\n");
 111
 112   d = g_date_new();
 113   g_date_set_time(d, time(NULL));
 114   TEST("Today is valid", g_date_valid(d));
 115
 116   g_date_strftime(buf,100,"Today is a %A, %x\n", d);
 117   g_print("%s", buf);
 118
 119   g_date_set_time(d, 1);
 120   TEST("Beginning of Unix epoch is valid", g_date_valid(d));
 121
 122   g_date_strftime(buf,100,"1 second into the Unix epoch it was a %A, in the month of %B, %x\n", d);
 123   g_print("%s", buf);
 124
 125   g_date_set_julian(d, 1);
 126   TEST("GDate's \"Julian\" epoch's first day is valid", g_date_valid(d));
 127
 128   g_date_strftime(buf,100,"Our \"Julian\" epoch begins on a %A, in the month of %B, %x\n",
 129                   d);
 130   g_print("%s", buf);
 131
 132   g_date_set_dmy(d, 10, 1, 2000);
 133
 134   g_date_strftime(buf,100,"%x", d);
 135
 136   g_date_set_parse(d, buf);
 137   /* Note: this test will hopefully work, but no promises. */
 138   TEST("Successfully parsed a %x-formatted string",
 139        g_date_valid(d) &&
 140        g_date_get_month(d) == 1 &&
 141        g_date_get_day(d) == 10 &&
 142        g_date_get_year(d) == 2000);
 143   if (failed)
 144     g_date_debug_print(d);
 145
 146   g_date_free(d);
 147
 148   j = G_DATE_BAD_JULIAN;
 149
 150   i = 0;
 151   discontinuity = TRUE;
 152   y      = check_years[0];
 153   prev_y = G_DATE_BAD_YEAR;
 154   while (i < n_check_years)
 155     {
 156       guint32 first_day_of_year = G_DATE_BAD_JULIAN;
 157       guint16 days_in_year = g_date_is_leap_year(y) ? 366 : 365;
 158       guint   sunday_week_of_year = 0;
 159       guint   sunday_weeks_in_year = g_date_get_sunday_weeks_in_year(y);
 160       guint   monday_week_of_year = 0;
 161       guint   monday_weeks_in_year = g_date_get_monday_weeks_in_year(y);
 162
 163       if (discontinuity)
 164         g_print(" (Break in sequence of requested years to check)\n");
 165
 166       g_print("Checking year %u", y);
 167
 168       TEST("Year is valid", g_date_valid_year(y));
 169
 170       TEST("Number of Sunday weeks in year is 52 or 53",
 171            sunday_weeks_in_year == 52 || sunday_weeks_in_year == 53);
 172
 173       TEST("Number of Monday weeks in year is 52 or 53",
 174            monday_weeks_in_year == 52 || monday_weeks_in_year == 53);
 175
 176       m = 1;
 177       while (m < 13)
 178         {
 179           guint8 dim = g_date_get_days_in_month(m,y);
 180           GDate days[31];         /* This is the fast way, no allocation */
 181
 182           TEST("Sensible number of days in month", (dim > 0 && dim < 32));
 183
 184           TEST("Month between 1 and 12 is valid", g_date_valid_month(m));
 185
 186           day = 1;
 187
 188           g_date_clear(days, 31);
 189
 190           while (day <= dim)
 191             {
 192               guint i;
 193               GDate tmp;
 194
 195               TEST("DMY triplet is valid", g_date_valid_dmy(day,m,y));
 196
 197               /* Create GDate with triplet */
 198
 199               d = &days[day-1];
 200
 201               TEST("Cleared day is invalid", !g_date_valid(d));
 202
 203               g_date_set_dmy(d,day,m,y);
 204
 205               TEST("Set day is valid", g_date_valid(d));
 206
 207               if (m == G_DATE_JANUARY && day == 1)
 208                 {
 209                   first_day_of_year = g_date_get_julian(d);
 210                 }
 211
 212               g_assert(first_day_of_year != G_DATE_BAD_JULIAN);
 213
 214               TEST("Date with DMY triplet is valid", g_date_valid(d));
 215               TEST("Month accessor works", g_date_get_month(d) == m);
 216               TEST("Year accessor works", g_date_get_year(d) == y);
 217               TEST("Day of month accessor works", g_date_get_day(d) == day);
 218
 219               TEST("Day of year is consistent with Julian dates",
 220                    ((g_date_get_julian(d) + 1 - first_day_of_year) ==
 221                     (g_date_get_day_of_year(d))));
 222
 223               if (failed)
 224                 {
 225                   g_print("first day: %u this day: %u day of year: %u\n",
 226                           first_day_of_year,
 227                           g_date_get_julian(d),
 228                           g_date_get_day_of_year(d));
 229                 }
 230
 231               if (m == G_DATE_DECEMBER && day == 31)
 232                 {
 233                   TEST("Last day of year equals number of days in year",
 234                        g_date_get_day_of_year(d) == days_in_year);
 235                   if (failed)
 236                     {
 237                       g_print("last day: %u days in year: %u\n",
 238                               g_date_get_day_of_year(d), days_in_year);
 239                     }
 240                 }
 241
 242               TEST("Day of year is not more than number of days in the year",
 243                    g_date_get_day_of_year(d) <= days_in_year);
 244
 245               TEST("Monday week of year is not more than number of weeks in the year",
 246                    g_date_get_monday_week_of_year(d) <= monday_weeks_in_year);
 247               if (failed)
 248                 {
 249                   g_print("Weeks in year: %u\n", monday_weeks_in_year);
 250                   g_date_debug_print(d);
 251                 }
 252               TEST("Monday week of year is >= than last week of year",
 253                    g_date_get_monday_week_of_year(d) >= monday_week_of_year);
 254
 255               if (g_date_get_weekday(d) == G_DATE_MONDAY)
 256                 {
 257
 258                   TEST("Monday week of year on Monday 1 more than previous day's week of year",
 259                        (g_date_get_monday_week_of_year(d) - monday_week_of_year) == 1);
 260                 }
 261               else
 262                 {
 263                   TEST("Monday week of year on non-Monday 0 more than previous day's week of year",
 264                        (g_date_get_monday_week_of_year(d) - monday_week_of_year) == 0);
 265                 }
 266
 267
 268               monday_week_of_year = g_date_get_monday_week_of_year(d);
 269
 270
 271               TEST("Sunday week of year is not more than number of weeks in the year",
 272                    g_date_get_sunday_week_of_year(d) <= sunday_weeks_in_year);
 273               if (failed)
 274                 {
 275                   g_date_debug_print(d);
 276                 }
 277               TEST("Sunday week of year is >= than last week of year",
 278                    g_date_get_sunday_week_of_year(d) >= sunday_week_of_year);
 279
 280               if (g_date_get_weekday(d) == G_DATE_SUNDAY)
 281                 {
 282                   TEST("Sunday week of year on Sunday 1 more than previous day's week of year",
 283                        (g_date_get_sunday_week_of_year(d) - sunday_week_of_year) == 1);
 284                 }
 285               else
 286                 {
 287                   TEST("Sunday week of year on non-Sunday 0 more than previous day's week of year",
 288                        (g_date_get_sunday_week_of_year(d) - sunday_week_of_year) == 0);
 289                 }
 290
 291               sunday_week_of_year = g_date_get_sunday_week_of_year(d);
 292
 293               TEST("Date is equal to itself",
 294                    g_date_compare(d,d) == 0);
 295
 296
 297               /*************** Increments ***********/
 298
 299               i = 1;
 300               while (i < 402) /* Need to get 400 year increments in */
 301                 {
 302
 303                   /***** Days ******/
 304                   tmp = *d;
 305                   g_date_add_days(d, i);
 306
 307                   TEST("Adding days gives a value greater than previous",
 308                        g_date_compare(d, &tmp) > 0);
 309
 310                   g_date_subtract_days(d, i);
 311                   TEST("Forward days then backward days returns us to current day",
 312                        g_date_get_day(d) == day);
 313
 314                   if (failed)
 315                     {
 316                       g_print("  (increment %u, dmy %u %u %u) ", i, day, m, y);
 317                       g_date_debug_print(d);
 318                     }
 319
 320                   TEST("Forward days then backward days returns us to current month",
 321                        g_date_get_month(d) == m);
 322
 323                   if (failed)
 324                     {
 325                       g_print("  (increment %u, dmy %u %u %u) ", i, day, m, y);
 326                       g_date_debug_print(d);
 327                     }
 328
 329                   TEST("Forward days then backward days returns us to current year",
 330                        g_date_get_year(d) == y);
 331
 332                   if (failed)
 333                     {
 334                       g_print("  (increment %u, dmy %u %u %u) ", i, day, m, y);
 335                       g_date_debug_print(d);
 336                     }
 337
 338                   /******* Months ********/
 339
 340                   tmp = *d;
 341                   g_date_add_months(d, i);
 342                   TEST("Adding months gives a larger value",
 343                        g_date_compare(d, &tmp) > 0);
 344                   g_date_subtract_months(d, i);
 345
 346                   TEST("Forward months then backward months returns us to current month",
 347                        g_date_get_month(d) == m);
 348
 349                   if (failed)
 350                     {
 351                       g_print("  (increment %u, dmy %u %u %u) ", i, day, m, y);
 352                       g_date_debug_print(d);
 353                     }
 354
 355                   TEST("Forward months then backward months returns us to current year",
 356                        g_date_get_year(d) == y);
 357
 358                   if (failed)
 359                     {
 360                       g_print("  (increment %u, dmy %u %u %u) ", i, day, m, y);
 361                       g_date_debug_print(d);
 362                     }
 363
 364
 365                   if (day < 29)
 366                     {
 367                       /* Day should be unchanged */
 368
 369                       TEST("Forward months then backward months returns us to current day",
 370                            g_date_get_day(d) == day);
 371
 372                       if (failed)
 373                         {
 374                           g_print("  (increment %u, dmy %u %u %u) ", i, day, m, y);
 375                           g_date_debug_print(d);
 376                         }
 377                     }
 378                   else
 379                     {
 380                       /* reset the day for later tests */
 381                       g_date_set_day(d, day);
 382                     }
 383
 384                   /******* Years ********/
 385
 386                   tmp = *d;
 387                   g_date_add_years(d, i);
 388
 389                   TEST("Adding years gives a larger value",
 390                        g_date_compare(d,&tmp) > 0);
 391
 392                   g_date_subtract_years(d, i);
 393
 394                   TEST("Forward years then backward years returns us to current month",
 395                        g_date_get_month(d) == m);
 396
 397                   if (failed)
 398                     {
 399                       g_print("  (increment %u, dmy %u %u %u) ", i, day, m, y);
 400                       g_date_debug_print(d);
 401                     }
 402
 403                   TEST("Forward years then backward years returns us to current year",
 404                        g_date_get_year(d) == y);
 405
 406                   if (failed)
 407                     {
 408                       g_print("  (increment %u, dmy %u %u %u) ", i, day, m, y);
 409                       g_date_debug_print(d);
 410                     }
 411
 412                   if (m != 2 && day != 29)
 413                     {
 414                       TEST("Forward years then backward years returns us to current day",
 415                            g_date_get_day(d) == day);
 416
 417                       if (failed)
 418                         {
 419                           g_print("  (increment %u, dmy %u %u %u) ", i, day, m, y);
 420                           g_date_debug_print(d);
 421                         }
 422                     }
 423                   else
 424                     {
 425                       g_date_set_day(d, day); /* reset */
 426                     }
 427
 428                   i += 10;
 429                 }
 430
 431               /*****  increment test relative to our local Julian count */
 432
 433               if (!discontinuity) {
 434
 435                 /* We can only run sequence tests between sequential years */
 436
 437                 TEST("Julians are sequential with increment 1",
 438                      j+1 == g_date_get_julian(d));
 439                 if (failed)
 440                   {
 441                     g_print("Out of sequence, prev: %u expected: %u got: %u\n",
 442                             j, j+1, g_date_get_julian(d));
 443                   }
 444
 445                 g_date_add_days(d,1);
 446                 TEST("Next day has julian 1 higher",
 447                      g_date_get_julian(d) == j + 2);
 448                 g_date_subtract_days(d, 1);
 449
 450                 if (j != G_DATE_BAD_JULIAN)
 451                   {
 452                     g_date_subtract_days(d, 1);
 453
 454                     TEST("Previous day has julian 1 lower",
 455                          g_date_get_julian(d) == j);
 456
 457                     g_date_add_days(d, 1); /* back to original */
 458                   }
 459               }
 460               discontinuity = FALSE; /* goes away now */
 461
 462               fflush(stdout);
 463               fflush(stderr);
 464
 465               j = g_date_get_julian(d); /* inc current julian */
 466
 467               ++day;
 468             }
 469           ++m;
 470         }
 471       g_print(" done\n");
 472       ++i;
 473       prev_y = y;
 474       y = check_years[i];
 475       if (prev_y == G_DATE_BAD_YEAR ||
 476           (prev_y + 1) != y) discontinuity = TRUE;
 477     }
 478
 479
 480   g_print("\n%u tests passed, %u failed\n",passed, notpassed);
 481
 482   return 0;
 483 }
 484
 485