tests/datetime/datetimetest.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        tests/datetime/datetime.cpp
   3 // Purpose:     wxDateTime unit test
   4 // Author:      Vadim Zeitlin
   5 // Created:     2004-06-23 (extracted from samples/console/console.cpp)
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2004 Vadim Zeitlin <vadim@wxwindows.org>
   8 ///////////////////////////////////////////////////////////////////////////////
   9
  10 // ----------------------------------------------------------------------------
  11 // headers
  12 // ----------------------------------------------------------------------------
  13
  14 #include "testprec.h"
  15
  16 #ifdef __BORLANDC__
  17     #pragma hdrstop
  18 #endif
  19
  20 #ifndef WX_PRECOMP
  21 #endif // WX_PRECOMP
  22
  23 #include "wx/datetime.h"
  24
  25 // to test Today() meaningfully we must be able to change the system date which
  26 // is not usually the case, but if we're under Win32 we can try it -- define
  27 // the macro below to do it
  28 //#define CHANGE_SYSTEM_DATE
  29
  30 #ifndef __WINDOWS__
  31     #undef CHANGE_SYSTEM_DATE
  32 #endif
  33
  34 #ifdef CHANGE_SYSTEM_DATE
  35
  36 class DateChanger
  37 {
  38 public:
  39     DateChanger(int year, int month, int day, int hour, int min, int sec)
  40     {
  41         SYSTEMTIME st;
  42         st.wDay = day;
  43         st.wMonth = month;
  44         st.wYear = year;
  45         st.wHour = hour;
  46         st.wMinute = min;
  47         st.wSecond = sec;
  48         st.wMilliseconds = 0;
  49
  50         ::GetSystemTime(&m_savedTime);
  51         ::GetTimeZoneInformation(&m_tzi);
  52
  53         m_changed = ::SetSystemTime(&st) != 0;
  54     }
  55
  56     ~DateChanger()
  57     {
  58         if ( m_changed )
  59         {
  60             ::SetSystemTime(&m_savedTime);
  61             ::SetTimeZoneInformation(&m_tzi);
  62         }
  63     }
  64
  65 private:
  66     SYSTEMTIME m_savedTime;
  67     TIME_ZONE_INFORMATION m_tzi;
  68     bool m_changed;
  69 };
  70
  71 #endif // CHANGE_SYSTEM_DATE
  72
  73 // ----------------------------------------------------------------------------
  74 // broken down date representation used for testing
  75 // ----------------------------------------------------------------------------
  76
  77 struct Date
  78 {
  79     wxDateTime::wxDateTime_t day;
  80     wxDateTime::Month month;
  81     int year;
  82     wxDateTime::wxDateTime_t hour, min, sec;
  83     double jdn;
  84     wxDateTime::WeekDay wday;
  85     time_t gmticks, ticks;
  86
  87     void Init(const wxDateTime::Tm& tm)
  88     {
  89         day = tm.mday;
  90         month = tm.mon;
  91         year = tm.year;
  92         hour = tm.hour;
  93         min = tm.min;
  94         sec = tm.sec;
  95         jdn = 0.0;
  96         gmticks = ticks = -1;
  97     }
  98
  99     wxDateTime DT() const
 100         { return wxDateTime(day, month, year, hour, min, sec); }
 101
 102     bool SameDay(const wxDateTime::Tm& tm) const
 103     {
 104         return day == tm.mday && month == tm.mon && year == tm.year;
 105     }
 106
 107     wxString Format() const
 108     {
 109         wxString s;
 110         s.Printf(_T("%02d:%02d:%02d %10s %02d, %4d%s"),
 111                  hour, min, sec,
 112                  wxDateTime::GetMonthName(month).c_str(),
 113                  day,
 114                  abs(wxDateTime::ConvertYearToBC(year)),
 115                  year > 0 ? _T("AD") : _T("BC"));
 116         return s;
 117     }
 118
 119     wxString FormatDate() const
 120     {
 121         wxString s;
 122         s.Printf(_T("%02d-%s-%4d%s"),
 123                  day,
 124                  wxDateTime::GetMonthName(month, wxDateTime::Name_Abbr).c_str(),
 125                  abs(wxDateTime::ConvertYearToBC(year)),
 126                  year > 0 ? _T("AD") : _T("BC"));
 127         return s;
 128     }
 129 };
 130
 131 // ----------------------------------------------------------------------------
 132 // test data
 133 // ----------------------------------------------------------------------------
 134
 135 static const Date testDates[] =
 136 {
 137     {  1, wxDateTime::Jan,  1970, 00, 00, 00, 2440587.5, wxDateTime::Thu,         0,     -3600 },
 138     {  7, wxDateTime::Feb,  2036, 00, 00, 00, 2464730.5, wxDateTime::Thu,        -1,        -1 },
 139     {  8, wxDateTime::Feb,  2036, 00, 00, 00, 2464731.5, wxDateTime::Fri,        -1,        -1 },
 140     {  1, wxDateTime::Jan,  2037, 00, 00, 00, 2465059.5, wxDateTime::Thu,        -1,        -1 },
 141     {  1, wxDateTime::Jan,  2038, 00, 00, 00, 2465424.5, wxDateTime::Fri,        -1,        -1 },
 142     { 21, wxDateTime::Jan,  2222, 00, 00, 00, 2532648.5, wxDateTime::Mon,        -1,        -1 },
 143     { 29, wxDateTime::May,  1976, 12, 00, 00, 2442928.0, wxDateTime::Sat, 202219200, 202212000 },
 144     { 29, wxDateTime::Feb,  1976, 00, 00, 00, 2442837.5, wxDateTime::Sun, 194400000, 194396400 },
 145     {  1, wxDateTime::Jan,  1900, 12, 00, 00, 2415021.0, wxDateTime::Mon,        -1,        -1 },
 146     {  1, wxDateTime::Jan,  1900, 00, 00, 00, 2415020.5, wxDateTime::Mon,        -1,        -1 },
 147     { 15, wxDateTime::Oct,  1582, 00, 00, 00, 2299160.5, wxDateTime::Fri,        -1,        -1 },
 148     {  4, wxDateTime::Oct,  1582, 00, 00, 00, 2299149.5, wxDateTime::Mon,        -1,        -1 },
 149     {  1, wxDateTime::Mar,     1, 00, 00, 00, 1721484.5, wxDateTime::Thu,        -1,        -1 },
 150     {  1, wxDateTime::Jan,     1, 00, 00, 00, 1721425.5, wxDateTime::Mon,        -1,        -1 },
 151     { 31, wxDateTime::Dec,     0, 00, 00, 00, 1721424.5, wxDateTime::Sun,        -1,        -1 },
 152     {  1, wxDateTime::Jan,     0, 00, 00, 00, 1721059.5, wxDateTime::Sat,        -1,        -1 },
 153     { 12, wxDateTime::Aug, -1234, 00, 00, 00, 1270573.5, wxDateTime::Fri,        -1,        -1 },
 154     { 12, wxDateTime::Aug, -4000, 00, 00, 00,  260313.5, wxDateTime::Sat,        -1,        -1 },
 155     { 24, wxDateTime::Nov, -4713, 00, 00, 00,      -0.5, wxDateTime::Mon,        -1,        -1 },
 156 };
 157
 158
 159 // ----------------------------------------------------------------------------
 160 // test class
 161 // ----------------------------------------------------------------------------
 162
 163 class DateTimeTestCase : public CppUnit::TestCase
 164 {
 165 public:
 166     DateTimeTestCase() { }
 167
 168 private:
 169     CPPUNIT_TEST_SUITE( DateTimeTestCase );
 170         CPPUNIT_TEST( TestLeapYears );
 171         CPPUNIT_TEST( TestTimeSet );
 172         CPPUNIT_TEST( TestTimeJDN );
 173         CPPUNIT_TEST( TestTimeWNumber );
 174         CPPUNIT_TEST( TestTimeWDays );
 175         CPPUNIT_TEST( TestTimeDST );
 176         CPPUNIT_TEST( TestTimeFormat );
 177         CPPUNIT_TEST( TestTimeTicks );
 178         CPPUNIT_TEST( TestTimeParse );
 179         CPPUNIT_TEST( TestTimeArithmetics );
 180         CPPUNIT_TEST( TestDSTBug );
 181     CPPUNIT_TEST_SUITE_END();
 182
 183     void TestLeapYears();
 184     void TestTimeSet();
 185     void TestTimeJDN();
 186     void TestTimeWNumber();
 187     void TestTimeWDays();
 188     void TestTimeDST();
 189     void TestTimeFormat();
 190     void TestTimeTicks();
 191     void TestTimeParse();
 192     void TestTimeArithmetics();
 193     void TestDSTBug();
 194
 195     DECLARE_NO_COPY_CLASS(DateTimeTestCase)
 196 };
 197
 198 // register in the unnamed registry so that these tests are run by default
 199 CPPUNIT_TEST_SUITE_REGISTRATION( DateTimeTestCase );
 200
 201 // also include in it's own registry so that these tests can be run alone
 202 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( DateTimeTestCase, "DateTimeTestCase" );
 203
 204 // ============================================================================
 205 // implementation
 206 // ============================================================================
 207
 208 // test leap years detection
 209 void DateTimeTestCase::TestLeapYears()
 210 {
 211     static const struct LeapYearTestData
 212     {
 213         int year;
 214         bool isLeap;
 215     } years[] =
 216     {
 217         { 1900, false },
 218         { 1990, false },
 219         { 1976, true },
 220         { 2000, true },
 221         { 2030, false },
 222         { 1984, true },
 223         { 2100, false },
 224         { 2400, true },
 225     };
 226
 227     for ( size_t n = 0; n < WXSIZEOF(years); n++ )
 228     {
 229         const LeapYearTestData& y = years[n];
 230
 231         CPPUNIT_ASSERT( wxDateTime::IsLeapYear(y.year) == y.isLeap );
 232     }
 233 }
 234
 235 // test constructing wxDateTime objects
 236 void DateTimeTestCase::TestTimeSet()
 237 {
 238     for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
 239     {
 240         const Date& d1 = testDates[n];
 241         wxDateTime dt = d1.DT();
 242
 243         Date d2;
 244         d2.Init(dt.GetTm());
 245
 246         wxString s1 = d1.Format(),
 247                  s2 = d2.Format();
 248
 249         CPPUNIT_ASSERT( s1 == s2 );
 250     }
 251 }
 252
 253 // test conversions to JDN &c
 254 void DateTimeTestCase::TestTimeJDN()
 255 {
 256     for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
 257     {
 258         const Date& d = testDates[n];
 259         wxDateTime dt(d.day, d.month, d.year, d.hour, d.min, d.sec);
 260         double jdn = dt.GetJulianDayNumber();
 261
 262         CPPUNIT_ASSERT( jdn == d.jdn );
 263
 264         dt.Set(jdn);
 265         CPPUNIT_ASSERT( dt.GetJulianDayNumber() == jdn );
 266     }
 267 }
 268
 269 // test week days computation
 270 void DateTimeTestCase::TestTimeWDays()
 271 {
 272     // test GetWeekDay()
 273     size_t n;
 274     for ( n = 0; n < WXSIZEOF(testDates); n++ )
 275     {
 276         const Date& d = testDates[n];
 277         wxDateTime dt(d.day, d.month, d.year, d.hour, d.min, d.sec);
 278
 279         wxDateTime::WeekDay wday = dt.GetWeekDay();
 280         CPPUNIT_ASSERT( wday == d.wday );
 281     }
 282
 283     // test SetToWeekDay()
 284     struct WeekDateTestData
 285     {
 286         Date date;                  // the real date (precomputed)
 287         int nWeek;                  // its week index in the month
 288         wxDateTime::WeekDay wday;   // the weekday
 289         wxDateTime::Month month;    // the month
 290         int year;                   // and the year
 291
 292         wxString Format() const
 293         {
 294             wxString s, which;
 295             switch ( nWeek < -1 ? -nWeek : nWeek )
 296             {
 297                 case 1: which = _T("first"); break;
 298                 case 2: which = _T("second"); break;
 299                 case 3: which = _T("third"); break;
 300                 case 4: which = _T("fourth"); break;
 301                 case 5: which = _T("fifth"); break;
 302
 303                 case -1: which = _T("last"); break;
 304             }
 305
 306             if ( nWeek < -1 )
 307             {
 308                 which += _T(" from end");
 309             }
 310
 311             s.Printf(_T("The %s %s of %s in %d"),
 312                      which.c_str(),
 313                      wxDateTime::GetWeekDayName(wday).c_str(),
 314                      wxDateTime::GetMonthName(month).c_str(),
 315                      year);
 316
 317             return s;
 318         }
 319     };
 320
 321     // the array data was generated by the following python program
 322     /*
 323 from DateTime import *
 324 from whrandom import *
 325 from string import *
 326
 327 monthNames = [ 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' ]
 328 wdayNames = [ 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun' ]
 329
 330 week = DateTimeDelta(7)
 331
 332 for n in range(20):
 333     year = randint(1900, 2100)
 334     month = randint(1, 12)
 335     day = randint(1, 28)
 336     dt = DateTime(year, month, day)
 337     wday = dt.day_of_week
 338
 339     countFromEnd = choice([-1, 1])
 340     weekNum = 0;
 341
 342     while dt.month is month:
 343         dt = dt - countFromEnd * week
 344         weekNum = weekNum + countFromEnd
 345
 346     data = { 'day': rjust(`day`, 2), 'month': monthNames[month - 1], 'year': year, 'weekNum': rjust(`weekNum`, 2), 'wday': wdayNames[wday] }
 347
 348     print "{ { %(day)s, wxDateTime::%(month)s, %(year)d }, %(weekNum)d, "\
 349           "wxDateTime::%(wday)s, wxDateTime::%(month)s, %(year)d }," % data
 350     */
 351
 352     static const WeekDateTestData weekDatesTestData[] =
 353     {
 354         { { 20, wxDateTime::Mar, 2045, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  3, wxDateTime::Mon, wxDateTime::Mar, 2045 },
 355         { {  5, wxDateTime::Jun, 1985, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, -4, wxDateTime::Wed, wxDateTime::Jun, 1985 },
 356         { { 12, wxDateTime::Nov, 1961, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, -3, wxDateTime::Sun, wxDateTime::Nov, 1961 },
 357         { { 27, wxDateTime::Feb, 2093, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, -1, wxDateTime::Fri, wxDateTime::Feb, 2093 },
 358         { {  4, wxDateTime::Jul, 2070, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, -4, wxDateTime::Fri, wxDateTime::Jul, 2070 },
 359         { {  2, wxDateTime::Apr, 1906, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, -5, wxDateTime::Mon, wxDateTime::Apr, 1906 },
 360         { { 19, wxDateTime::Jul, 2023, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, -2, wxDateTime::Wed, wxDateTime::Jul, 2023 },
 361         { {  5, wxDateTime::May, 1958, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, -4, wxDateTime::Mon, wxDateTime::May, 1958 },
 362         { { 11, wxDateTime::Aug, 1900, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  2, wxDateTime::Sat, wxDateTime::Aug, 1900 },
 363         { { 14, wxDateTime::Feb, 1945, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  2, wxDateTime::Wed, wxDateTime::Feb, 1945 },
 364         { { 25, wxDateTime::Jul, 1967, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, -1, wxDateTime::Tue, wxDateTime::Jul, 1967 },
 365         { {  9, wxDateTime::May, 1916, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, -4, wxDateTime::Tue, wxDateTime::May, 1916 },
 366         { { 20, wxDateTime::Jun, 1927, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  3, wxDateTime::Mon, wxDateTime::Jun, 1927 },
 367         { {  2, wxDateTime::Aug, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  1, wxDateTime::Wed, wxDateTime::Aug, 2000 },
 368         { { 20, wxDateTime::Apr, 2044, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  3, wxDateTime::Wed, wxDateTime::Apr, 2044 },
 369         { { 20, wxDateTime::Feb, 1932, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, -2, wxDateTime::Sat, wxDateTime::Feb, 1932 },
 370         { { 25, wxDateTime::Jul, 2069, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  4, wxDateTime::Thu, wxDateTime::Jul, 2069 },
 371         { {  3, wxDateTime::Apr, 1925, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  1, wxDateTime::Fri, wxDateTime::Apr, 1925 },
 372         { { 21, wxDateTime::Mar, 2093, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  3, wxDateTime::Sat, wxDateTime::Mar, 2093 },
 373         { {  3, wxDateTime::Dec, 2074, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, -5, wxDateTime::Mon, wxDateTime::Dec, 2074 }
 374     };
 375
 376     wxDateTime dt;
 377     for ( n = 0; n < WXSIZEOF(weekDatesTestData); n++ )
 378     {
 379         const WeekDateTestData& wd = weekDatesTestData[n];
 380
 381         dt.SetToWeekDay(wd.wday, wd.nWeek, wd.month, wd.year);
 382
 383         const Date& d = wd.date;
 384         CPPUNIT_ASSERT( d.SameDay(dt.GetTm()) );
 385     }
 386 }
 387
 388 // test the computation of (ISO) week numbers
 389 void DateTimeTestCase::TestTimeWNumber()
 390 {
 391     struct WeekNumberTestData
 392     {
 393         Date date;                          // the date
 394         wxDateTime::wxDateTime_t week;      // the week number in the year
 395         wxDateTime::wxDateTime_t wmon;      // the week number in the month
 396         wxDateTime::wxDateTime_t wmon2;     // same but week starts with Sun
 397         wxDateTime::wxDateTime_t dnum;      // day number in the year
 398     };
 399
 400     // data generated with the following python script:
 401     /*
 402 from DateTime import *
 403 from whrandom import *
 404 from string import *
 405
 406 monthNames = [ 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' ]
 407 wdayNames = [ 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun' ]
 408
 409 def GetMonthWeek(dt):
 410     weekNumMonth = dt.iso_week[1] - DateTime(dt.year, dt.month, 1).iso_week[1] + 1
 411     if weekNumMonth < 0:
 412         weekNumMonth = weekNumMonth + 53
 413     return weekNumMonth
 414
 415 def GetLastSundayBefore(dt):
 416     if dt.iso_week[2] == 7:
 417         return dt
 418     else:
 419         return dt - DateTimeDelta(dt.iso_week[2])
 420
 421 for n in range(20):
 422     year = randint(1900, 2100)
 423     month = randint(1, 12)
 424     day = randint(1, 28)
 425     dt = DateTime(year, month, day)
 426     dayNum = dt.day_of_year
 427     weekNum = dt.iso_week[1]
 428     weekNumMonth = GetMonthWeek(dt)
 429
 430     weekNumMonth2 = 0
 431     dtSunday = GetLastSundayBefore(dt)
 432
 433     while dtSunday >= GetLastSundayBefore(DateTime(dt.year, dt.month, 1)):
 434         weekNumMonth2 = weekNumMonth2 + 1
 435         dtSunday = dtSunday - DateTimeDelta(7)
 436
 437     data = { 'day': rjust(`day`, 2), \
 438              'month': monthNames[month - 1], \
 439              'year': year, \
 440              'weekNum': rjust(`weekNum`, 2), \
 441              'weekNumMonth': weekNumMonth, \
 442              'weekNumMonth2': weekNumMonth2, \
 443              'dayNum': rjust(`dayNum`, 3) }
 444
 445     print "        { { %(day)s, "\
 446           "wxDateTime::%(month)s, "\
 447           "%(year)d }, "\
 448           "%(weekNum)s, "\
 449           "%(weekNumMonth)s, "\
 450           "%(weekNumMonth2)s, "\
 451           "%(dayNum)s }," % data
 452
 453     */
 454     static const WeekNumberTestData weekNumberTestDates[] =
 455     {
 456         { { 27, wxDateTime::Dec, 1966, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 52, 5, 5, 361 },
 457         { { 22, wxDateTime::Jul, 1926, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 29, 4, 4, 203 },
 458         { { 22, wxDateTime::Oct, 2076, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 43, 4, 4, 296 },
 459         { {  1, wxDateTime::Jul, 1967, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 26, 1, 1, 182 },
 460         { {  8, wxDateTime::Nov, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 46, 2, 2, 313 },
 461         { { 21, wxDateTime::Mar, 1920, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 12, 3, 4,  81 },
 462         { {  7, wxDateTime::Jan, 1965, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  1, 2, 2,   7 },
 463         { { 19, wxDateTime::Oct, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 42, 4, 4, 292 },
 464         { { 13, wxDateTime::Aug, 1955, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 32, 2, 2, 225 },
 465         { { 18, wxDateTime::Jul, 2087, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 29, 3, 3, 199 },
 466         { {  2, wxDateTime::Sep, 2028, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 35, 1, 1, 246 },
 467         { { 28, wxDateTime::Jul, 1945, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 30, 5, 4, 209 },
 468         { { 15, wxDateTime::Jun, 1901, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 24, 3, 3, 166 },
 469         { { 10, wxDateTime::Oct, 1939, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 41, 3, 2, 283 },
 470         { {  3, wxDateTime::Dec, 1965, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 48, 1, 1, 337 },
 471         { { 23, wxDateTime::Feb, 1940, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  8, 4, 4,  54 },
 472         { {  2, wxDateTime::Jan, 1987, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  1, 1, 1,   2 },
 473         { { 11, wxDateTime::Aug, 2079, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 32, 2, 2, 223 },
 474         { {  2, wxDateTime::Feb, 2063, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  5, 1, 1,  33 },
 475         { { 16, wxDateTime::Oct, 1942, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 42, 3, 3, 289 },
 476         { { 30, wxDateTime::Dec, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  1, 5, 5, 364 },
 477         { {  2, wxDateTime::Jan, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  1, 1, 1,   2 },
 478     };
 479
 480     for ( size_t n = 0; n < WXSIZEOF(weekNumberTestDates); n++ )
 481     {
 482         const WeekNumberTestData& wn = weekNumberTestDates[n];
 483         const Date& d = wn.date;
 484
 485         wxDateTime dt = d.DT();
 486
 487         wxDateTime::wxDateTime_t
 488             week = dt.GetWeekOfYear(wxDateTime::Monday_First),
 489             wmon = dt.GetWeekOfMonth(wxDateTime::Monday_First),
 490             wmon2 = dt.GetWeekOfMonth(wxDateTime::Sunday_First),
 491             dnum = dt.GetDayOfYear();
 492
 493         CPPUNIT_ASSERT( dnum == wn.dnum );
 494         CPPUNIT_ASSERT( wmon == wn.wmon );
 495         CPPUNIT_ASSERT( wmon2 == wn.wmon2 );
 496         CPPUNIT_ASSERT( week == wn.week );
 497
 498         int year = d.year;
 499         if ( week == 1 && d.month != wxDateTime::Jan )
 500         {
 501             // this means we're in the first week of the next year
 502             year++;
 503         }
 504
 505         wxDateTime
 506             dt2 = wxDateTime::SetToWeekOfYear(year, week, dt.GetWeekDay());
 507         CPPUNIT_ASSERT( dt2 == dt );
 508     }
 509 }
 510
 511 // test DST applicability
 512 void DateTimeTestCase::TestTimeDST()
 513 {
 514     // taken from http://www.energy.ca.gov/daylightsaving.html
 515     static const Date datesDST[2][2004 - 1900 + 1] =
 516     {
 517         {
 518             { 1, wxDateTime::Apr, 1990, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 519             { 7, wxDateTime::Apr, 1991, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 520             { 5, wxDateTime::Apr, 1992, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 521             { 4, wxDateTime::Apr, 1993, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 522             { 3, wxDateTime::Apr, 1994, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 523             { 2, wxDateTime::Apr, 1995, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 524             { 7, wxDateTime::Apr, 1996, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 525             { 6, wxDateTime::Apr, 1997, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 526             { 5, wxDateTime::Apr, 1998, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 527             { 4, wxDateTime::Apr, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 528             { 2, wxDateTime::Apr, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 529             { 1, wxDateTime::Apr, 2001, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 530             { 7, wxDateTime::Apr, 2002, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 531             { 6, wxDateTime::Apr, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 532             { 4, wxDateTime::Apr, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 533         },
 534         {
 535             { 28, wxDateTime::Oct, 1990, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 536             { 27, wxDateTime::Oct, 1991, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 537             { 25, wxDateTime::Oct, 1992, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 538             { 31, wxDateTime::Oct, 1993, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 539             { 30, wxDateTime::Oct, 1994, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 540             { 29, wxDateTime::Oct, 1995, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 541             { 27, wxDateTime::Oct, 1996, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 542             { 26, wxDateTime::Oct, 1997, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 543             { 25, wxDateTime::Oct, 1998, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 544             { 31, wxDateTime::Oct, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 545             { 29, wxDateTime::Oct, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 546             { 28, wxDateTime::Oct, 2001, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 547             { 27, wxDateTime::Oct, 2002, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 548             { 26, wxDateTime::Oct, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 549             { 31, wxDateTime::Oct, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 550         }
 551     };
 552
 553     for ( int year = 1990; year < 2005; year++ )
 554     {
 555         wxDateTime dtBegin = wxDateTime::GetBeginDST(year, wxDateTime::USA),
 556                    dtEnd = wxDateTime::GetEndDST(year, wxDateTime::USA);
 557
 558         size_t n = year - 1990;
 559         const Date& dBegin = datesDST[0][n];
 560         const Date& dEnd = datesDST[1][n];
 561
 562         CPPUNIT_ASSERT( dBegin.SameDay(dtBegin.GetTm()) );
 563         CPPUNIT_ASSERT( dEnd.SameDay(dtEnd.GetTm()) );
 564     }
 565 }
 566
 567 // test wxDateTime -> text conversion
 568 void DateTimeTestCase::TestTimeFormat()
 569 {
 570     // some information may be lost during conversion, so store what kind
 571     // of info should we recover after a round trip
 572     enum CompareKind
 573     {
 574         CompareNone,        // don't try comparing
 575         CompareBoth,        // dates and times should be identical
 576         CompareDate,        // dates only
 577         CompareTime         // time only
 578     };
 579
 580     static const struct
 581     {
 582         CompareKind compareKind;
 583         const wxChar *format;
 584     } formatTestFormats[] =
 585     {
 586        { CompareBoth, _T("---> %c") },
 587        { CompareDate, _T("Date is %A, %d of %B, in year %Y") },
 588        { CompareBoth, _T("Date is %x, time is %X") },
 589        { CompareTime, _T("Time is %H:%M:%S or %I:%M:%S %p") },
 590        { CompareNone, _T("The day of year: %j, the week of year: %W") },
 591        { CompareDate, _T("ISO date without separators: %Y%m%d") },
 592     };
 593
 594     static const Date formatTestDates[] =
 595     {
 596         { 29, wxDateTime::May, 1976, 18, 30, 00, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 597         { 31, wxDateTime::Dec, 1999, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 598 #if 0
 599         // this test can't work for other centuries because it uses two digit
 600         // years in formats, so don't even try it
 601         { 29, wxDateTime::May, 2076, 18, 30, 00, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 602         { 29, wxDateTime::Feb, 2400, 02, 15, 25, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 603         { 01, wxDateTime::Jan,  -52, 03, 16, 47, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 604 #endif
 605     };
 606
 607     for ( size_t d = 0; d < WXSIZEOF(formatTestDates) + 1; d++ )
 608     {
 609         wxDateTime dt = d == 0 ? wxDateTime::Now() : formatTestDates[d - 1].DT();
 610         for ( size_t n = 0; n < WXSIZEOF(formatTestFormats); n++ )
 611         {
 612             wxString s = dt.Format(formatTestFormats[n].format);
 613
 614             // what can we recover?
 615             int kind = formatTestFormats[n].compareKind;
 616
 617             // convert back
 618             wxDateTime dt2;
 619             const wxChar *result = dt2.ParseFormat(s, formatTestFormats[n].format);
 620             if ( !result )
 621             {
 622                 // converion failed - should it have?
 623                 CPPUNIT_ASSERT( kind == CompareNone );
 624             }
 625             else // conversion succeeded
 626             {
 627                 // should have parsed the entire string
 628                 CPPUNIT_ASSERT( !*result );
 629
 630                 switch ( kind )
 631                 {
 632                     case CompareBoth:
 633                         CPPUNIT_ASSERT( dt2 == dt );
 634                         break;
 635
 636                     case CompareDate:
 637                         CPPUNIT_ASSERT( dt.IsSameDate(dt2) );
 638                         break;
 639
 640                     case CompareTime:
 641                         CPPUNIT_ASSERT( dt.IsSameTime(dt2) );
 642                         break;
 643                 }
 644             }
 645         }
 646     }
 647 }
 648
 649 void DateTimeTestCase::TestTimeTicks()
 650 {
 651     for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
 652     {
 653         const Date& d = testDates[n];
 654         if ( d.ticks == -1 )
 655             continue;
 656
 657         wxDateTime dt = d.DT();
 658         //RN:  Translate according to test's time zone
 659         //2nd param is to ignore DST - it's already factored
 660         //into Vadim's tests
 661         dt.MakeTimezone(wxDateTime::WEST, true);
 662         long ticks = (dt.GetValue() / 1000).ToLong();
 663         CPPUNIT_ASSERT( ticks == d.ticks );
 664
 665         dt = d.DT().ToTimezone(wxDateTime::GMT0);
 666         ticks = (dt.GetValue() / 1000).ToLong();
 667         CPPUNIT_ASSERT( ticks == d.gmticks );
 668     }
 669 }
 670
 671 // test text -> wxDateTime conversion
 672 void DateTimeTestCase::TestTimeParse()
 673 {
 674     static const struct ParseTestData
 675     {
 676         const wxChar *format;
 677         Date date;
 678         bool good;
 679     } parseTestDates[] =
 680     {
 681         { _T("Sat, 18 Dec 1999 00:46:40 +0100"), { 18, wxDateTime::Dec, 1999, 00, 46, 40, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, true },
 682         { _T("Wed, 1 Dec 1999 05:17:20 +0300"),  {  1, wxDateTime::Dec, 1999, 03, 17, 20, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, true },
 683     };
 684
 685     for ( size_t n = 0; n < WXSIZEOF(parseTestDates); n++ )
 686     {
 687         const wxChar *format = parseTestDates[n].format;
 688
 689         wxDateTime dt;
 690         if ( dt.ParseRfc822Date(format) )
 691         {
 692             CPPUNIT_ASSERT( parseTestDates[n].good );
 693
 694             wxDateTime dtReal = parseTestDates[n].date.DT();
 695             //RN:  We need this because the tests are based on
 696             //a non-GMT time zone
 697             dtReal.MakeTimezone(wxDateTime::WEST, true);
 698             CPPUNIT_ASSERT( dt == dtReal );
 699         }
 700         else // failed to parse
 701         {
 702             CPPUNIT_ASSERT( !parseTestDates[n].good );
 703         }
 704     }
 705 }
 706
 707 void DateTimeTestCase::TestTimeArithmetics()
 708 {
 709     static const wxDateSpan testArithmData[] =
 710     {
 711         wxDateSpan::Day(),
 712         wxDateSpan::Week(),
 713         wxDateSpan::Month(),
 714         wxDateSpan::Year(),
 715     };
 716
 717     // the test will *not* work with arbitrary date!
 718     wxDateTime dt(2, wxDateTime::Dec, 1999),
 719                dt1,
 720                dt2;
 721
 722     for ( size_t n = 0; n < WXSIZEOF(testArithmData); n++ )
 723     {
 724         const wxDateSpan& span = testArithmData[n];
 725         dt1 = dt + span;
 726         dt2 = dt - span;
 727
 728         CPPUNIT_ASSERT( dt1 - span == dt );
 729         CPPUNIT_ASSERT( dt2 + span == dt );
 730         CPPUNIT_ASSERT( dt2 + 2*span == dt1 );
 731     }
 732 }
 733
 734 void DateTimeTestCase::TestDSTBug()
 735 {
 736     /////////////////////////
 737     // Test GetEndDST()
 738     wxDateTime dt = wxDateTime::GetEndDST(2004);
 739     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
 740     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
 741     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
 742     CPPUNIT_ASSERT_EQUAL(2, (int)dt.GetHour());
 743     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
 744     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
 745     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
 746
 747     /////////////////////////
 748     // Test ResetTime()
 749     dt.SetHour(5);
 750     CPPUNIT_ASSERT_EQUAL(5, (int)dt.GetHour());
 751     dt.ResetTime();
 752     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
 753     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
 754     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
 755     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetHour());
 756     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
 757     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
 758     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
 759
 760     dt.Set(1, 0, 0, 0);
 761     CPPUNIT_ASSERT_EQUAL(1, (int)dt.GetHour());
 762
 763     /////////////////////////
 764     // Test Today()
 765 #ifdef CHANGE_SYSTEM_DATE
 766     {
 767         DateChanger change(2004, 10, 31, 5, 0, 0);
 768         dt = wxDateTime::Today();
 769     }
 770
 771     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
 772     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
 773     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
 774     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetHour());
 775     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
 776     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
 777     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
 778
 779     /////////////////////////
 780     // Test Set(hour, minute, second, milli)
 781     wxDateTime dt2;
 782     {
 783         DateChanger change(2004, 10, 31, 5, 0, 0);
 784         dt.Set(1, 30, 0, 0);
 785         dt2.Set(5, 30, 0, 0);
 786     }
 787
 788     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
 789     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
 790     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
 791     CPPUNIT_ASSERT_EQUAL(1, (int)dt.GetHour());
 792     CPPUNIT_ASSERT_EQUAL(30, (int)dt.GetMinute());
 793     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
 794     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
 795
 796     CPPUNIT_ASSERT_EQUAL(31, (int)dt2.GetDay());
 797     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt2.GetMonth());
 798     CPPUNIT_ASSERT_EQUAL(2004, (int)dt2.GetYear());
 799     CPPUNIT_ASSERT_EQUAL(5, (int)dt2.GetHour());
 800     CPPUNIT_ASSERT_EQUAL(30, (int)dt2.GetMinute());
 801     CPPUNIT_ASSERT_EQUAL(0, (int)dt2.GetSecond());
 802     CPPUNIT_ASSERT_EQUAL(0, (int)dt2.GetMillisecond());
 803 #endif // CHANGE_SYSTEM_DATE
 804 }
 805