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       guint   iso8601_week_of_year = 0;
 163
 164       if (discontinuity)
 165         g_print(" (Break in sequence of requested years to check)\n");
 166
 167       g_print("Checking year %u", y);
 168
 169       TEST("Year is valid", g_date_valid_year(y));
 170
 171       TEST("Number of Sunday weeks in year is 52 or 53",
 172            sunday_weeks_in_year == 52 || sunday_weeks_in_year == 53);
 173
 174       TEST("Number of Monday weeks in year is 52 or 53",
 175            monday_weeks_in_year == 52 || monday_weeks_in_year == 53);
 176
 177       m = 1;
 178       while (m < 13)
 179         {
 180           guint8 dim = g_date_get_days_in_month(m,y);
 181           GDate days[31];         /* This is the fast way, no allocation */
 182
 183           TEST("Sensible number of days in month", (dim > 0 && dim < 32));
 184
 185           TEST("Month between 1 and 12 is valid", g_date_valid_month(m));
 186
 187           day = 1;
 188
 189           g_date_clear(days, 31);
 190
 191           while (day <= dim)
 192             {
 193               guint i;
 194               GDate tmp;
 195
 196               TEST("DMY triplet is valid", g_date_valid_dmy(day,m,y));
 197
 198               /* Create GDate with triplet */
 199
 200               d = &days[day-1];
 201
 202               TEST("Cleared day is invalid", !g_date_valid(d));
 203
 204               g_date_set_dmy(d,day,m,y);
 205
 206               TEST("Set day is valid", g_date_valid(d));
 207
 208               if (m == G_DATE_JANUARY && day == 1)
 209                 {
 210                   first_day_of_year = g_date_get_julian(d);
 211                 }
 212
 213               g_assert(first_day_of_year != G_DATE_BAD_JULIAN);
 214
 215               TEST("Date with DMY triplet is valid", g_date_valid(d));
 216               TEST("Month accessor works", g_date_get_month(d) == m);
 217               TEST("Year accessor works", g_date_get_year(d) == y);
 218               TEST("Day of month accessor works", g_date_get_day(d) == day);
 219
 220               TEST("Day of year is consistent with Julian dates",
 221                    ((g_date_get_julian(d) + 1 - first_day_of_year) ==
 222                     (g_date_get_day_of_year(d))));
 223
 224               if (failed)
 225                 {
 226                   g_print("first day: %u this day: %u day of year: %u\n",
 227                           first_day_of_year,
 228                           g_date_get_julian(d),
 229                           g_date_get_day_of_year(d));
 230                 }
 231
 232               if (m == G_DATE_DECEMBER && day == 31)
 233                 {
 234                   TEST("Last day of year equals number of days in year",
 235                        g_date_get_day_of_year(d) == days_in_year);
 236                   if (failed)
 237                     {
 238                       g_print("last day: %u days in year: %u\n",
 239                               g_date_get_day_of_year(d), days_in_year);
 240                     }
 241                 }
 242
 243               TEST("Day of year is not more than number of days in the year",
 244                    g_date_get_day_of_year(d) <= days_in_year);
 245
 246               TEST("Monday week of year is not more than number of weeks in the year",
 247                    g_date_get_monday_week_of_year(d) <= monday_weeks_in_year);
 248               if (failed)
 249                 {
 250                   g_print("Weeks in year: %u\n", monday_weeks_in_year);
 251                   g_date_debug_print(d);
 252                 }
 253               TEST("Monday week of year is >= than last week of year",
 254                    g_date_get_monday_week_of_year(d) >= monday_week_of_year);
 255
 256               if (g_date_get_weekday(d) == G_DATE_MONDAY)
 257                 {
 258
 259                   TEST("Monday week of year on Monday 1 more than previous day's week of year",
 260                        (g_date_get_monday_week_of_year(d) - monday_week_of_year) == 1);
 261                   if ((m == G_DATE_JANUARY && day <= 4) ||
 262                       (m == G_DATE_DECEMBER && day >= 29)) {
 263                     TEST("ISO 8601 week of year on Monday Dec 29 - Jan 4 is 1",
 264                          (g_date_get_iso8601_week_of_year(d) == 1));
 265                   } else {
 266                     TEST("ISO 8601 week of year on Monday 1 more than previous day's week of year",
 267                          (g_date_get_iso8601_week_of_year(d) - iso8601_week_of_year) == 1);
 268                   }
 269                 }
 270               else
 271                 {
 272                   TEST("Monday week of year on non-Monday 0 more than previous day's week of year",
 273                        (g_date_get_monday_week_of_year(d) - monday_week_of_year) == 0);
 274                   if (!(day == 1 && m == G_DATE_JANUARY)) {
 275                     TEST("ISO 8601 week of year on non-Monday 0 more than previous day's week of year (",
 276                          (g_date_get_iso8601_week_of_year(d) - iso8601_week_of_year) == 0);
 277                   }
 278                 }
 279
 280
 281               monday_week_of_year = g_date_get_monday_week_of_year(d);
 282               iso8601_week_of_year = g_date_get_iso8601_week_of_year(d);
 283
 284
 285               TEST("Sunday week of year is not more than number of weeks in the year",
 286                    g_date_get_sunday_week_of_year(d) <= sunday_weeks_in_year);
 287               if (failed)
 288                 {
 289                   g_date_debug_print(d);
 290                 }
 291               TEST("Sunday week of year is >= than last week of year",
 292                    g_date_get_sunday_week_of_year(d) >= sunday_week_of_year);
 293
 294               if (g_date_get_weekday(d) == G_DATE_SUNDAY)
 295                 {
 296                   TEST("Sunday week of year on Sunday 1 more than previous day's week of year",
 297                        (g_date_get_sunday_week_of_year(d) - sunday_week_of_year) == 1);
 298                 }
 299               else
 300                 {
 301                   TEST("Sunday week of year on non-Sunday 0 more than previous day's week of year",
 302                        (g_date_get_sunday_week_of_year(d) - sunday_week_of_year) == 0);
 303                 }
 304
 305               sunday_week_of_year = g_date_get_sunday_week_of_year(d);
 306
 307               TEST("Date is equal to itself",
 308                    g_date_compare(d,d) == 0);
 309
 310
 311               /*************** Increments ***********/
 312
 313               i = 1;
 314               while (i < 402) /* Need to get 400 year increments in */
 315                 {
 316
 317                   /***** Days ******/
 318                   tmp = *d;
 319                   g_date_add_days(d, i);
 320
 321                   TEST("Adding days gives a value greater than previous",
 322                        g_date_compare(d, &tmp) > 0);
 323
 324                   g_date_subtract_days(d, i);
 325                   TEST("Forward days then backward days returns us to current day",
 326                        g_date_get_day(d) == day);
 327
 328                   if (failed)
 329                     {
 330                       g_print("  (increment %u, dmy %u %u %u) ", i, day, m, y);
 331                       g_date_debug_print(d);
 332                     }
 333
 334                   TEST("Forward days then backward days returns us to current month",
 335                        g_date_get_month(d) == m);
 336
 337                   if (failed)
 338                     {
 339                       g_print("  (increment %u, dmy %u %u %u) ", i, day, m, y);
 340                       g_date_debug_print(d);
 341                     }
 342
 343                   TEST("Forward days then backward days returns us to current year",
 344                        g_date_get_year(d) == y);
 345
 346                   if (failed)
 347                     {
 348                       g_print("  (increment %u, dmy %u %u %u) ", i, day, m, y);
 349                       g_date_debug_print(d);
 350                     }
 351
 352                   /******* Months ********/
 353
 354                   tmp = *d;
 355                   g_date_add_months(d, i);
 356                   TEST("Adding months gives a larger value",
 357                        g_date_compare(d, &tmp) > 0);
 358                   g_date_subtract_months(d, i);
 359
 360                   TEST("Forward months then backward months returns us to current month",
 361                        g_date_get_month(d) == m);
 362
 363                   if (failed)
 364                     {
 365                       g_print("  (increment %u, dmy %u %u %u) ", i, day, m, y);
 366                       g_date_debug_print(d);
 367                     }
 368
 369                   TEST("Forward months then backward months returns us to current year",
 370                        g_date_get_year(d) == y);
 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
 379                   if (day < 29)
 380                     {
 381                       /* Day should be unchanged */
 382
 383                       TEST("Forward months then backward months returns us to current day",
 384                            g_date_get_day(d) == day);
 385
 386                       if (failed)
 387                         {
 388                           g_print("  (increment %u, dmy %u %u %u) ", i, day, m, y);
 389                           g_date_debug_print(d);
 390                         }
 391                     }
 392                   else
 393                     {
 394                       /* reset the day for later tests */
 395                       g_date_set_day(d, day);
 396                     }
 397
 398                   /******* Years ********/
 399
 400                   tmp = *d;
 401                   g_date_add_years(d, i);
 402
 403                   TEST("Adding years gives a larger value",
 404                        g_date_compare(d,&tmp) > 0);
 405
 406                   g_date_subtract_years(d, i);
 407
 408                   TEST("Forward years then backward years returns us to current month",
 409                        g_date_get_month(d) == m);
 410
 411                   if (failed)
 412                     {
 413                       g_print("  (increment %u, dmy %u %u %u) ", i, day, m, y);
 414                       g_date_debug_print(d);
 415                     }
 416
 417                   TEST("Forward years then backward years returns us to current year",
 418                        g_date_get_year(d) == y);
 419
 420                   if (failed)
 421                     {
 422                       g_print("  (increment %u, dmy %u %u %u) ", i, day, m, y);
 423                       g_date_debug_print(d);
 424                     }
 425
 426                   if (m != 2 && day != 29)
 427                     {
 428                       TEST("Forward years then backward years returns us to current day",
 429                            g_date_get_day(d) == day);
 430
 431                       if (failed)
 432                         {
 433                           g_print("  (increment %u, dmy %u %u %u) ", i, day, m, y);
 434                           g_date_debug_print(d);
 435                         }
 436                     }
 437                   else
 438                     {
 439                       g_date_set_day(d, day); /* reset */
 440                     }
 441
 442                   i += 10;
 443                 }
 444
 445               /*****  increment test relative to our local Julian count */
 446
 447               if (!discontinuity) {
 448
 449                 /* We can only run sequence tests between sequential years */
 450
 451                 TEST("Julians are sequential with increment 1",
 452                      j+1 == g_date_get_julian(d));
 453                 if (failed)
 454                   {
 455                     g_print("Out of sequence, prev: %u expected: %u got: %u\n",
 456                             j, j+1, g_date_get_julian(d));
 457                   }
 458
 459                 g_date_add_days(d,1);
 460                 TEST("Next day has julian 1 higher",
 461                      g_date_get_julian(d) == j + 2);
 462                 g_date_subtract_days(d, 1);
 463
 464                 if (j != G_DATE_BAD_JULIAN)
 465                   {
 466                     g_date_subtract_days(d, 1);
 467
 468                     TEST("Previous day has julian 1 lower",
 469                          g_date_get_julian(d) == j);
 470
 471                     g_date_add_days(d, 1); /* back to original */
 472                   }
 473               }
 474               discontinuity = FALSE; /* goes away now */
 475
 476               fflush(stdout);
 477               fflush(stderr);
 478
 479               j = g_date_get_julian(d); /* inc current julian */
 480
 481               ++day;
 482             }
 483           ++m;
 484         }
 485       g_print(" done\n");
 486       ++i;
 487       prev_y = y;
 488       y = check_years[i];
 489       if (prev_y == G_DATE_BAD_YEAR ||
 490           (prev_y + 1) != y) discontinuity = TRUE;
 491     }
 492
 493
 494   g_print("\n%u tests passed, %u failed\n",passed, notpassed);
 495
 496   return 0;
 497 }
 498
 499