tests/date-test.c

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