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 #if wxUSE_DATETIME
  24
  25 #include "wx/datetime.h"
  26 #include "wx/wxcrt.h"       // for wxStrstr()
  27
  28 // need this to be able to use CPPUNIT_ASSERT_EQUAL with wxDateTime objects
  29 static std::ostream& operator<<(std::ostream& ostr, const wxDateTime& dt)
  30 {
  31     ostr << dt.FormatISOCombined(' ');
  32
  33     return ostr;
  34 }
  35
  36 WX_CPPUNIT_ALLOW_EQUALS_TO_INT(wxDateTime::wxDateTime_t)
  37
  38 // to test Today() meaningfully we must be able to change the system date which
  39 // is not usually the case, but if we're under Win32 we can try it -- define
  40 // the macro below to do it
  41 //#define CHANGE_SYSTEM_DATE
  42
  43 #ifndef __WINDOWS__
  44     #undef CHANGE_SYSTEM_DATE
  45 #endif
  46
  47 #ifdef CHANGE_SYSTEM_DATE
  48
  49 class DateChanger
  50 {
  51 public:
  52     DateChanger(int year, int month, int day, int hour, int min, int sec)
  53     {
  54         SYSTEMTIME st;
  55         st.wDay = day;
  56         st.wMonth = month;
  57         st.wYear = year;
  58         st.wHour = hour;
  59         st.wMinute = min;
  60         st.wSecond = sec;
  61         st.wMilliseconds = 0;
  62
  63         ::GetSystemTime(&m_savedTime);
  64         ::GetTimeZoneInformation(&m_tzi);
  65
  66         m_changed = ::SetSystemTime(&st) != 0;
  67     }
  68
  69     ~DateChanger()
  70     {
  71         if ( m_changed )
  72         {
  73             ::SetSystemTime(&m_savedTime);
  74             ::SetTimeZoneInformation(&m_tzi);
  75         }
  76     }
  77
  78 private:
  79     SYSTEMTIME m_savedTime;
  80     TIME_ZONE_INFORMATION m_tzi;
  81     bool m_changed;
  82 };
  83
  84 #endif // CHANGE_SYSTEM_DATE
  85
  86 // helper class setting the locale to "C" for its lifetime
  87 class CLocaleSetter
  88 {
  89 public:
  90     CLocaleSetter() : m_locOld(setlocale(LC_ALL, "C")) { }
  91     ~CLocaleSetter() { setlocale(LC_ALL, m_locOld); }
  92
  93 private:
  94     const char * const m_locOld;
  95     wxDECLARE_NO_COPY_CLASS(CLocaleSetter);
  96 };
  97
  98 // helper function translating week day/month names from English to the current
  99 // locale
 100 static wxString TranslateDate(const wxString& str)
 101 {
 102     // small optimization: if there are no alphabetic characters in the string,
 103     // there is nothing to translate
 104     wxString::const_iterator i, end = str.end();
 105     for ( i = str.begin(); i != end; ++i )
 106     {
 107         if ( isalpha(*i) )
 108             break;
 109     }
 110
 111     if ( i == end )
 112         return str;
 113
 114     wxString trans(str);
 115
 116     for ( wxDateTime::WeekDay wd = wxDateTime::Sun;
 117           wd < wxDateTime::Inv_WeekDay;
 118           wxNextWDay(wd) )
 119     {
 120         trans.Replace
 121               (
 122                 wxDateTime::GetEnglishWeekDayName(wd, wxDateTime::Name_Abbr),
 123                 wxDateTime::GetWeekDayName(wd, wxDateTime::Name_Abbr)
 124               );
 125     }
 126
 127     for ( wxDateTime::Month mon = wxDateTime::Jan;
 128           mon < wxDateTime::Inv_Month;
 129           wxNextMonth(mon) )
 130     {
 131         trans.Replace
 132               (
 133                 wxDateTime::GetEnglishMonthName(mon, wxDateTime::Name_Abbr),
 134                 wxDateTime::GetMonthName(mon, wxDateTime::Name_Abbr)
 135               );
 136     }
 137
 138     return trans;
 139 }
 140
 141 // ----------------------------------------------------------------------------
 142 // broken down date representation used for testing
 143 // ----------------------------------------------------------------------------
 144
 145 struct Date
 146 {
 147     wxDateTime::wxDateTime_t day;
 148     wxDateTime::Month month;
 149     int year;
 150     wxDateTime::wxDateTime_t hour, min, sec;
 151     double jdn;
 152     wxDateTime::WeekDay wday;
 153     time_t gmticks;
 154
 155     void Init(const wxDateTime::Tm& tm)
 156     {
 157         day = tm.mday;
 158         month = tm.mon;
 159         year = tm.year;
 160         hour = tm.hour;
 161         min = tm.min;
 162         sec = tm.sec;
 163         jdn = 0.0;
 164         gmticks = -1;
 165     }
 166
 167     wxDateTime DT() const
 168         { return wxDateTime(day, month, year, hour, min, sec); }
 169
 170     bool SameDay(const wxDateTime::Tm& tm) const
 171     {
 172         return day == tm.mday && month == tm.mon && year == tm.year;
 173     }
 174
 175     wxString Format() const
 176     {
 177         wxString s;
 178         s.Printf(_T("%02d:%02d:%02d %10s %02d, %4d%s"),
 179                  hour, min, sec,
 180                  wxDateTime::GetMonthName(month).c_str(),
 181                  day,
 182                  abs(wxDateTime::ConvertYearToBC(year)),
 183                  year > 0 ? _T("AD") : _T("BC"));
 184         return s;
 185     }
 186
 187     wxString FormatDate() const
 188     {
 189         wxString s;
 190         s.Printf(_T("%02d-%s-%4d%s"),
 191                  day,
 192                  wxDateTime::GetMonthName(month, wxDateTime::Name_Abbr).c_str(),
 193                  abs(wxDateTime::ConvertYearToBC(year)),
 194                  year > 0 ? _T("AD") : _T("BC"));
 195         return s;
 196     }
 197 };
 198
 199 // ----------------------------------------------------------------------------
 200 // test data
 201 // ----------------------------------------------------------------------------
 202
 203 static const Date testDates[] =
 204 {
 205     {  1, wxDateTime::Jan,  1970, 00, 00, 00, 2440587.5, wxDateTime::Thu,         0 },
 206     {  7, wxDateTime::Feb,  2036, 00, 00, 00, 2464730.5, wxDateTime::Thu,        -1 },
 207     {  8, wxDateTime::Feb,  2036, 00, 00, 00, 2464731.5, wxDateTime::Fri,        -1 },
 208     {  1, wxDateTime::Jan,  2037, 00, 00, 00, 2465059.5, wxDateTime::Thu,        -1 },
 209     {  1, wxDateTime::Jan,  2038, 00, 00, 00, 2465424.5, wxDateTime::Fri,        -1 },
 210     { 21, wxDateTime::Jan,  2222, 00, 00, 00, 2532648.5, wxDateTime::Mon,        -1 },
 211     { 29, wxDateTime::May,  1976, 12, 00, 00, 2442928.0, wxDateTime::Sat, 202219200 },
 212     { 29, wxDateTime::Feb,  1976, 00, 00, 00, 2442837.5, wxDateTime::Sun, 194400000 },
 213     {  1, wxDateTime::Jan,  1900, 12, 00, 00, 2415021.0, wxDateTime::Mon,        -1 },
 214     {  1, wxDateTime::Jan,  1900, 00, 00, 00, 2415020.5, wxDateTime::Mon,        -1 },
 215     { 15, wxDateTime::Oct,  1582, 00, 00, 00, 2299160.5, wxDateTime::Fri,        -1 },
 216     {  4, wxDateTime::Oct,  1582, 00, 00, 00, 2299149.5, wxDateTime::Mon,        -1 },
 217     {  1, wxDateTime::Mar,     1, 00, 00, 00, 1721484.5, wxDateTime::Thu,        -1 },
 218     {  1, wxDateTime::Jan,     1, 00, 00, 00, 1721425.5, wxDateTime::Mon,        -1 },
 219     { 31, wxDateTime::Dec,     0, 00, 00, 00, 1721424.5, wxDateTime::Sun,        -1 },
 220     {  1, wxDateTime::Jan,     0, 00, 00, 00, 1721059.5, wxDateTime::Sat,        -1 },
 221     { 12, wxDateTime::Aug, -1234, 00, 00, 00, 1270573.5, wxDateTime::Fri,        -1 },
 222     { 12, wxDateTime::Aug, -4000, 00, 00, 00,  260313.5, wxDateTime::Sat,        -1 },
 223     { 24, wxDateTime::Nov, -4713, 00, 00, 00,      -0.5, wxDateTime::Mon,        -1 },
 224 };
 225
 226
 227 // ----------------------------------------------------------------------------
 228 // test class
 229 // ----------------------------------------------------------------------------
 230
 231 class DateTimeTestCase : public CppUnit::TestCase
 232 {
 233 public:
 234     DateTimeTestCase() { }
 235
 236 private:
 237     CPPUNIT_TEST_SUITE( DateTimeTestCase );
 238         CPPUNIT_TEST( TestLeapYears );
 239         CPPUNIT_TEST( TestTimeSet );
 240         CPPUNIT_TEST( TestTimeJDN );
 241         CPPUNIT_TEST( TestTimeWNumber );
 242         CPPUNIT_TEST( TestTimeWDays );
 243         CPPUNIT_TEST( TestTimeDST );
 244         CPPUNIT_TEST( TestTimeFormat );
 245         CPPUNIT_TEST( TestTimeSpanFormat );
 246         CPPUNIT_TEST( TestTimeTicks );
 247         CPPUNIT_TEST( TestParceRFC822 );
 248         CPPUNIT_TEST( TestDateParse );
 249         CPPUNIT_TEST( TestDateParseISO );
 250         CPPUNIT_TEST( TestDateTimeParse );
 251         CPPUNIT_TEST( TestTimeArithmetics );
 252         CPPUNIT_TEST( TestDSTBug );
 253         CPPUNIT_TEST( TestDateOnly );
 254     CPPUNIT_TEST_SUITE_END();
 255
 256     void TestLeapYears();
 257     void TestTimeSet();
 258     void TestTimeJDN();
 259     void TestTimeWNumber();
 260     void TestTimeWDays();
 261     void TestTimeDST();
 262     void TestTimeFormat();
 263     void TestTimeSpanFormat();
 264     void TestTimeTicks();
 265     void TestParceRFC822();
 266     void TestDateParse();
 267     void TestDateParseISO();
 268     void TestDateTimeParse();
 269     void TestTimeArithmetics();
 270     void TestDSTBug();
 271     void TestDateOnly();
 272
 273     DECLARE_NO_COPY_CLASS(DateTimeTestCase)
 274 };
 275
 276 // register in the unnamed registry so that these tests are run by default
 277 CPPUNIT_TEST_SUITE_REGISTRATION( DateTimeTestCase );
 278
 279 // also include in it's own registry so that these tests can be run alone
 280 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( DateTimeTestCase, "DateTimeTestCase" );
 281
 282 // ============================================================================
 283 // implementation
 284 // ============================================================================
 285
 286 // test leap years detection
 287 void DateTimeTestCase::TestLeapYears()
 288 {
 289     static const struct LeapYearTestData
 290     {
 291         int year;
 292         bool isLeap;
 293     } years[] =
 294     {
 295         { 1900, false },
 296         { 1990, false },
 297         { 1976, true },
 298         { 2000, true },
 299         { 2030, false },
 300         { 1984, true },
 301         { 2100, false },
 302         { 2400, true },
 303     };
 304
 305     for ( size_t n = 0; n < WXSIZEOF(years); n++ )
 306     {
 307         const LeapYearTestData& y = years[n];
 308
 309         CPPUNIT_ASSERT_EQUAL( y.isLeap, wxDateTime::IsLeapYear(y.year) );
 310     }
 311 }
 312
 313 // test constructing wxDateTime objects
 314 void DateTimeTestCase::TestTimeSet()
 315 {
 316     for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
 317     {
 318         const Date& d1 = testDates[n];
 319         wxDateTime dt = d1.DT();
 320
 321         Date d2;
 322         d2.Init(dt.GetTm());
 323
 324         wxString s1 = d1.Format(),
 325                  s2 = d2.Format();
 326
 327         CPPUNIT_ASSERT_EQUAL( s1, s2 );
 328     }
 329 }
 330
 331 // test conversions to JDN &c
 332 void DateTimeTestCase::TestTimeJDN()
 333 {
 334     for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
 335     {
 336         const Date& d = testDates[n];
 337         wxDateTime dt(d.day, d.month, d.year, d.hour, d.min, d.sec);
 338
 339         // JDNs must be computed for UTC times
 340         double jdn = dt.FromUTC().GetJulianDayNumber();
 341
 342         CPPUNIT_ASSERT_EQUAL( d.jdn, jdn );
 343
 344         dt.Set(jdn);
 345         CPPUNIT_ASSERT_EQUAL( jdn, dt.GetJulianDayNumber() );
 346     }
 347 }
 348
 349 // test week days computation
 350 void DateTimeTestCase::TestTimeWDays()
 351 {
 352     // test GetWeekDay()
 353     size_t n;
 354     for ( n = 0; n < WXSIZEOF(testDates); n++ )
 355     {
 356         const Date& d = testDates[n];
 357         wxDateTime dt(d.day, d.month, d.year, d.hour, d.min, d.sec);
 358
 359         wxDateTime::WeekDay wday = dt.GetWeekDay();
 360         CPPUNIT_ASSERT_EQUAL( d.wday, wday );
 361     }
 362
 363     // test SetToWeekDay()
 364     struct WeekDateTestData
 365     {
 366         Date date;                  // the real date (precomputed)
 367         int nWeek;                  // its week index in the month
 368         wxDateTime::WeekDay wday;   // the weekday
 369         wxDateTime::Month month;    // the month
 370         int year;                   // and the year
 371
 372         wxString Format() const
 373         {
 374             wxString s, which;
 375             switch ( nWeek < -1 ? -nWeek : nWeek )
 376             {
 377                 case 1: which = _T("first"); break;
 378                 case 2: which = _T("second"); break;
 379                 case 3: which = _T("third"); break;
 380                 case 4: which = _T("fourth"); break;
 381                 case 5: which = _T("fifth"); break;
 382
 383                 case -1: which = _T("last"); break;
 384             }
 385
 386             if ( nWeek < -1 )
 387             {
 388                 which += _T(" from end");
 389             }
 390
 391             s.Printf(_T("The %s %s of %s in %d"),
 392                      which.c_str(),
 393                      wxDateTime::GetWeekDayName(wday).c_str(),
 394                      wxDateTime::GetMonthName(month).c_str(),
 395                      year);
 396
 397             return s;
 398         }
 399     };
 400
 401     // the array data was generated by the following python program
 402     /*
 403 from DateTime import *
 404 from whrandom import *
 405 from string import *
 406
 407 monthNames = [ 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' ]
 408 wdayNames = [ 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun' ]
 409
 410 week = DateTimeDelta(7)
 411
 412 for n in range(20):
 413     year = randint(1900, 2100)
 414     month = randint(1, 12)
 415     day = randint(1, 28)
 416     dt = DateTime(year, month, day)
 417     wday = dt.day_of_week
 418
 419     countFromEnd = choice([-1, 1])
 420     weekNum = 0;
 421
 422     while dt.month is month:
 423         dt = dt - countFromEnd * week
 424         weekNum = weekNum + countFromEnd
 425
 426     data = { 'day': rjust(`day`, 2), 'month': monthNames[month - 1], 'year': year, 'weekNum': rjust(`weekNum`, 2), 'wday': wdayNames[wday] }
 427
 428     print "{ { %(day)s, wxDateTime::%(month)s, %(year)d }, %(weekNum)d, "\
 429           "wxDateTime::%(wday)s, wxDateTime::%(month)s, %(year)d }," % data
 430     */
 431
 432     static const WeekDateTestData weekDatesTestData[] =
 433     {
 434         { { 20, wxDateTime::Mar, 2045, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  3, wxDateTime::Mon, wxDateTime::Mar, 2045 },
 435         { {  5, wxDateTime::Jun, 1985, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -4, wxDateTime::Wed, wxDateTime::Jun, 1985 },
 436         { { 12, wxDateTime::Nov, 1961, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -3, wxDateTime::Sun, wxDateTime::Nov, 1961 },
 437         { { 27, wxDateTime::Feb, 2093, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -1, wxDateTime::Fri, wxDateTime::Feb, 2093 },
 438         { {  4, wxDateTime::Jul, 2070, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -4, wxDateTime::Fri, wxDateTime::Jul, 2070 },
 439         { {  2, wxDateTime::Apr, 1906, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -5, wxDateTime::Mon, wxDateTime::Apr, 1906 },
 440         { { 19, wxDateTime::Jul, 2023, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -2, wxDateTime::Wed, wxDateTime::Jul, 2023 },
 441         { {  5, wxDateTime::May, 1958, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -4, wxDateTime::Mon, wxDateTime::May, 1958 },
 442         { { 11, wxDateTime::Aug, 1900, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  2, wxDateTime::Sat, wxDateTime::Aug, 1900 },
 443         { { 14, wxDateTime::Feb, 1945, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  2, wxDateTime::Wed, wxDateTime::Feb, 1945 },
 444         { { 25, wxDateTime::Jul, 1967, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -1, wxDateTime::Tue, wxDateTime::Jul, 1967 },
 445         { {  9, wxDateTime::May, 1916, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -4, wxDateTime::Tue, wxDateTime::May, 1916 },
 446         { { 20, wxDateTime::Jun, 1927, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  3, wxDateTime::Mon, wxDateTime::Jun, 1927 },
 447         { {  2, wxDateTime::Aug, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, wxDateTime::Wed, wxDateTime::Aug, 2000 },
 448         { { 20, wxDateTime::Apr, 2044, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  3, wxDateTime::Wed, wxDateTime::Apr, 2044 },
 449         { { 20, wxDateTime::Feb, 1932, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -2, wxDateTime::Sat, wxDateTime::Feb, 1932 },
 450         { { 25, wxDateTime::Jul, 2069, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  4, wxDateTime::Thu, wxDateTime::Jul, 2069 },
 451         { {  3, wxDateTime::Apr, 1925, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, wxDateTime::Fri, wxDateTime::Apr, 1925 },
 452         { { 21, wxDateTime::Mar, 2093, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  3, wxDateTime::Sat, wxDateTime::Mar, 2093 },
 453         { {  3, wxDateTime::Dec, 2074, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -5, wxDateTime::Mon, wxDateTime::Dec, 2074 }
 454     };
 455
 456     wxDateTime dt;
 457     for ( n = 0; n < WXSIZEOF(weekDatesTestData); n++ )
 458     {
 459         const WeekDateTestData& wd = weekDatesTestData[n];
 460
 461         dt.SetToWeekDay(wd.wday, wd.nWeek, wd.month, wd.year);
 462
 463         const Date& d = wd.date;
 464         CPPUNIT_ASSERT( d.SameDay(dt.GetTm()) );
 465     }
 466 }
 467
 468 // test the computation of (ISO) week numbers
 469 void DateTimeTestCase::TestTimeWNumber()
 470 {
 471     struct WeekNumberTestData
 472     {
 473         Date date;                          // the date
 474         wxDateTime::wxDateTime_t week;      // the week number in the year
 475         wxDateTime::wxDateTime_t wmon;      // the week number in the month
 476         wxDateTime::wxDateTime_t wmon2;     // same but week starts with Sun
 477         wxDateTime::wxDateTime_t dnum;      // day number in the year
 478     };
 479
 480     // data generated with the following python script:
 481     /*
 482 from DateTime import *
 483 from whrandom import *
 484 from string import *
 485
 486 monthNames = [ 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' ]
 487 wdayNames = [ 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun' ]
 488
 489 def GetMonthWeek(dt):
 490     weekNumMonth = dt.iso_week[1] - DateTime(dt.year, dt.month, 1).iso_week[1] + 1
 491     if weekNumMonth < 0:
 492         weekNumMonth = weekNumMonth + 53
 493     return weekNumMonth
 494
 495 def GetLastSundayBefore(dt):
 496     if dt.iso_week[2] == 7:
 497         return dt
 498     else:
 499         return dt - DateTimeDelta(dt.iso_week[2])
 500
 501 for n in range(20):
 502     year = randint(1900, 2100)
 503     month = randint(1, 12)
 504     day = randint(1, 28)
 505     dt = DateTime(year, month, day)
 506     dayNum = dt.day_of_year
 507     weekNum = dt.iso_week[1]
 508     weekNumMonth = GetMonthWeek(dt)
 509
 510     weekNumMonth2 = 0
 511     dtSunday = GetLastSundayBefore(dt)
 512
 513     while dtSunday >= GetLastSundayBefore(DateTime(dt.year, dt.month, 1)):
 514         weekNumMonth2 = weekNumMonth2 + 1
 515         dtSunday = dtSunday - DateTimeDelta(7)
 516
 517     data = { 'day': rjust(`day`, 2), \
 518              'month': monthNames[month - 1], \
 519              'year': year, \
 520              'weekNum': rjust(`weekNum`, 2), \
 521              'weekNumMonth': weekNumMonth, \
 522              'weekNumMonth2': weekNumMonth2, \
 523              'dayNum': rjust(`dayNum`, 3) }
 524
 525     print "        { { %(day)s, "\
 526           "wxDateTime::%(month)s, "\
 527           "%(year)d }, "\
 528           "%(weekNum)s, "\
 529           "%(weekNumMonth)s, "\
 530           "%(weekNumMonth2)s, "\
 531           "%(dayNum)s }," % data
 532
 533     */
 534     static const WeekNumberTestData weekNumberTestDates[] =
 535     {
 536         { { 27, wxDateTime::Dec, 1966, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 52, 5, 5, 361 },
 537         { { 22, wxDateTime::Jul, 1926, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 29, 4, 4, 203 },
 538         { { 22, wxDateTime::Oct, 2076, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 43, 4, 4, 296 },
 539         { {  1, wxDateTime::Jul, 1967, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 26, 1, 1, 182 },
 540         { {  8, wxDateTime::Nov, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 46, 2, 2, 313 },
 541         { { 21, wxDateTime::Mar, 1920, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 12, 3, 4,  81 },
 542         { {  7, wxDateTime::Jan, 1965, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 2, 2,   7 },
 543         { { 19, wxDateTime::Oct, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 42, 4, 4, 292 },
 544         { { 13, wxDateTime::Aug, 1955, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 32, 2, 2, 225 },
 545         { { 18, wxDateTime::Jul, 2087, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 29, 3, 3, 199 },
 546         { {  2, wxDateTime::Sep, 2028, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 35, 1, 1, 246 },
 547         { { 28, wxDateTime::Jul, 1945, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 30, 5, 4, 209 },
 548         { { 15, wxDateTime::Jun, 1901, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 24, 3, 3, 166 },
 549         { { 10, wxDateTime::Oct, 1939, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 41, 3, 2, 283 },
 550         { {  3, wxDateTime::Dec, 1965, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 48, 1, 1, 337 },
 551         { { 23, wxDateTime::Feb, 1940, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  8, 4, 4,  54 },
 552         { {  2, wxDateTime::Jan, 1987, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 1, 1,   2 },
 553         { { 11, wxDateTime::Aug, 2079, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 32, 2, 2, 223 },
 554         { {  2, wxDateTime::Feb, 2063, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  5, 1, 1,  33 },
 555         { { 16, wxDateTime::Oct, 1942, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 42, 3, 3, 289 },
 556         { { 30, wxDateTime::Dec, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 5, 5, 364 },
 557         { {  2, wxDateTime::Jan, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 1, 1,   2 },
 558     };
 559
 560     for ( size_t n = 0; n < WXSIZEOF(weekNumberTestDates); n++ )
 561     {
 562         const WeekNumberTestData& wn = weekNumberTestDates[n];
 563         const Date& d = wn.date;
 564
 565         wxDateTime dt = d.DT();
 566
 567         wxDateTime::wxDateTime_t
 568             week = dt.GetWeekOfYear(wxDateTime::Monday_First),
 569             wmon = dt.GetWeekOfMonth(wxDateTime::Monday_First),
 570             wmon2 = dt.GetWeekOfMonth(wxDateTime::Sunday_First),
 571             dnum = dt.GetDayOfYear();
 572
 573         CPPUNIT_ASSERT_EQUAL( wn.dnum, dnum );
 574         CPPUNIT_ASSERT_EQUAL( wn.wmon, wmon );
 575         CPPUNIT_ASSERT_EQUAL( wn.wmon2, wmon2 );
 576         CPPUNIT_ASSERT_EQUAL( wn.week, week );
 577
 578         int year = d.year;
 579         if ( week == 1 && d.month != wxDateTime::Jan )
 580         {
 581             // this means we're in the first week of the next year
 582             year++;
 583         }
 584
 585         wxDateTime
 586             dt2 = wxDateTime::SetToWeekOfYear(year, week, dt.GetWeekDay());
 587         CPPUNIT_ASSERT_EQUAL( dt, dt2 );
 588     }
 589 }
 590
 591 // test DST applicability
 592 void DateTimeTestCase::TestTimeDST()
 593 {
 594     // taken from http://www.energy.ca.gov/daylightsaving.html
 595     static const Date datesDST[2][2009 - 1990 + 1] =
 596     {
 597         {
 598             { 1, wxDateTime::Apr, 1990, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 599             { 7, wxDateTime::Apr, 1991, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 600             { 5, wxDateTime::Apr, 1992, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 601             { 4, wxDateTime::Apr, 1993, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 602             { 3, wxDateTime::Apr, 1994, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 603             { 2, wxDateTime::Apr, 1995, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 604             { 7, wxDateTime::Apr, 1996, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 605             { 6, wxDateTime::Apr, 1997, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 606             { 5, wxDateTime::Apr, 1998, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 607             { 4, wxDateTime::Apr, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 608             { 2, wxDateTime::Apr, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 609             { 1, wxDateTime::Apr, 2001, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 610             { 7, wxDateTime::Apr, 2002, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 611             { 6, wxDateTime::Apr, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 612             { 4, wxDateTime::Apr, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 613             { 3, wxDateTime::Apr, 2005, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 614             { 2, wxDateTime::Apr, 2006, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 615             {11, wxDateTime::Mar, 2007, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 616             { 9, wxDateTime::Mar, 2008, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 617             { 8, wxDateTime::Mar, 2009, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 618         },
 619         {
 620             { 28, wxDateTime::Oct, 1990, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 621             { 27, wxDateTime::Oct, 1991, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 622             { 25, wxDateTime::Oct, 1992, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 623             { 31, wxDateTime::Oct, 1993, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 624             { 30, wxDateTime::Oct, 1994, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 625             { 29, wxDateTime::Oct, 1995, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 626             { 27, wxDateTime::Oct, 1996, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 627             { 26, wxDateTime::Oct, 1997, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 628             { 25, wxDateTime::Oct, 1998, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 629             { 31, wxDateTime::Oct, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 630             { 29, wxDateTime::Oct, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 631             { 28, wxDateTime::Oct, 2001, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 632             { 27, wxDateTime::Oct, 2002, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 633             { 26, wxDateTime::Oct, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 634             { 31, wxDateTime::Oct, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 635             { 30, wxDateTime::Oct, 2005, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 636             { 29, wxDateTime::Oct, 2006, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 637             {  4, wxDateTime::Nov, 2007, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 638             {  2, wxDateTime::Nov, 2008, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 639             {  1, wxDateTime::Nov, 2009, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 640
 641         }
 642     };
 643
 644     for ( size_t n = 0; n < WXSIZEOF(datesDST[0]); n++ )
 645     {
 646         const int year = 1990 + n;
 647         wxDateTime dtBegin = wxDateTime::GetBeginDST(year, wxDateTime::USA),
 648                    dtEnd = wxDateTime::GetEndDST(year, wxDateTime::USA);
 649
 650         const Date& dBegin = datesDST[0][n];
 651         const Date& dEnd = datesDST[1][n];
 652
 653         CPPUNIT_ASSERT_EQUAL( dBegin.DT().FormatDate(), dtBegin.FormatDate() );
 654         CPPUNIT_ASSERT_EQUAL( dEnd.DT().FormatDate(), dtEnd.FormatDate() );
 655     }
 656 }
 657
 658 // test wxDateTime -> text conversion
 659 void DateTimeTestCase::TestTimeFormat()
 660 {
 661     // some information may be lost during conversion, so store what kind
 662     // of info should we recover after a round trip
 663     enum CompareKind
 664     {
 665         CompareNone,        // don't try comparing
 666         CompareBoth,        // dates and times should be identical
 667         CompareYear,        // don't compare centuries (fails for 2 digit years)
 668         CompareDate,        // dates only
 669         CompareTime         // time only
 670     };
 671
 672     static const struct
 673     {
 674         CompareKind compareKind;
 675         const char *format;
 676     } formatTestFormats[] =
 677     {
 678        { CompareYear, "---> %c" }, // %c could use 2 digit years
 679        { CompareDate, "Date is %A, %d of %B, in year %Y" },
 680        { CompareYear, "Date is %x, time is %X" }, // %x could use 2 digits
 681        { CompareTime, "Time is %H:%M:%S or %I:%M:%S %p" },
 682        { CompareNone, "The day of year: %j, the week of year: %W" },
 683        { CompareDate, "ISO date without separators: %Y%m%d" },
 684     };
 685
 686     static const Date formatTestDates[] =
 687     {
 688         { 29, wxDateTime::May, 1976, 18, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 689         { 31, wxDateTime::Dec, 1999, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 690         {  6, wxDateTime::Feb, 1937, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 691         {  6, wxDateTime::Feb, 1856, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 692         {  6, wxDateTime::Feb, 1857, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 693         { 29, wxDateTime::May, 2076, 18, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 694
 695         // FIXME: the test with 02:15:25 time doesn't pass because of DST
 696         //        computation problems, we get back 03:15:25
 697         { 29, wxDateTime::Feb, 2400, 04, 15, 25, 0.0, wxDateTime::Inv_WeekDay },
 698 #if 0
 699         // Need to add support for BCE dates.
 700         { 01, wxDateTime::Jan,  -52, 03, 16, 47, 0.0, wxDateTime::Inv_WeekDay },
 701 #endif
 702     };
 703
 704     for ( size_t d = 0; d < WXSIZEOF(formatTestDates); d++ )
 705     {
 706         wxDateTime dt = formatTestDates[d].DT();
 707         for ( unsigned n = 0; n < WXSIZEOF(formatTestFormats); n++ )
 708         {
 709             const char *fmt = formatTestFormats[n].format;
 710
 711             // skip the check with %p for those locales which have empty AM/PM strings:
 712             // for those locales it's impossible to pass the test with %p...
 713             wxString am, pm;
 714             wxDateTime::GetAmPmStrings(&am, &pm);
 715             if (am.empty() && pm.empty() && wxStrstr(fmt, "%p") != NULL)
 716                 continue;
 717
 718             wxString s = dt.Format(fmt);
 719
 720             // what can we recover?
 721             CompareKind kind = formatTestFormats[n].compareKind;
 722
 723             // convert back
 724             wxDateTime dt2;
 725             const char *result = dt2.ParseFormat(s, fmt);
 726             if ( !result )
 727             {
 728                 // conversion failed - should it have?
 729                 WX_ASSERT_MESSAGE(
 730                     ("Test #%lu failed: failed to parse \"%s\"", n, s),
 731                     kind == CompareNone
 732                 );
 733             }
 734             else // conversion succeeded
 735             {
 736                 // currently ParseFormat() doesn't support "%Z" and so is
 737                 // incapable of parsing time zone part used at the end of date
 738                 // representations in many (but not "C") locales, compensate
 739                 // for it ourselves by simply consuming and ignoring it
 740                 while ( *result && (*result >= 'A' && *result <= 'Z') )
 741                     result++;
 742
 743                 WX_ASSERT_MESSAGE(
 744                     ("Test #%lu failed: \"%s\" was left unparsed in \"%s\"",
 745                      n, result, s),
 746                     !*result
 747                 );
 748
 749                 switch ( kind )
 750                 {
 751                     case CompareYear:
 752                         if ( dt2.GetCentury() != dt.GetCentury() )
 753                         {
 754                             CPPUNIT_ASSERT_EQUAL(dt.GetYear() % 100,
 755                                                  dt2.GetYear() % 100);
 756
 757                             dt2.SetYear(dt.GetYear());
 758                         }
 759                         // fall through and compare everything
 760
 761                     case CompareBoth:
 762                         CPPUNIT_ASSERT_EQUAL( dt, dt2 );
 763                         break;
 764
 765                     case CompareDate:
 766                         CPPUNIT_ASSERT( dt.IsSameDate(dt2) );
 767                         break;
 768
 769                     case CompareTime:
 770                         CPPUNIT_ASSERT( dt.IsSameTime(dt2) );
 771                         break;
 772
 773                     case CompareNone:
 774                         wxFAIL_MSG( _T("unexpected") );
 775                         break;
 776                 }
 777             }
 778         }
 779     }
 780
 781     wxDateTime dt;
 782
 783 #if 0
 784     // special case which was known to fail
 785     CPPUNIT_ASSERT( dt.ParseFormat("02/06/1856", "%x") );
 786     CPPUNIT_ASSERT_EQUAL( 1856, dt.GetYear() );
 787 #endif
 788
 789     // test partially specified dates too
 790     wxDateTime dtDef(26, wxDateTime::Sep, 2008);
 791     CPPUNIT_ASSERT( dt.ParseFormat("17", "%d") );
 792     CPPUNIT_ASSERT_EQUAL( 17, dt.GetDay() );
 793
 794     // test compilation of some calls which should compile (and not result in
 795     // ambiguity because of char*<->wxCStrData<->wxString conversions)
 796     wxString s("foo");
 797     CPPUNIT_ASSERT( !dt.ParseFormat("foo") );
 798     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo")) );
 799     CPPUNIT_ASSERT( !dt.ParseFormat(s) );
 800     CPPUNIT_ASSERT( !dt.ParseFormat(s.c_str()) );
 801
 802     CPPUNIT_ASSERT( !dt.ParseFormat("foo", "%c") );
 803     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), "%c") );
 804     CPPUNIT_ASSERT( !dt.ParseFormat(s, "%c") );
 805     CPPUNIT_ASSERT( !dt.ParseFormat(s.c_str(), "%c") );
 806
 807     CPPUNIT_ASSERT( !dt.ParseFormat("foo", wxT("%c")) );
 808     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), wxT("%c")) );
 809     CPPUNIT_ASSERT( !dt.ParseFormat(s, "%c") );
 810     CPPUNIT_ASSERT( !dt.ParseFormat(s.c_str(), wxT("%c")) );
 811
 812     wxString spec("%c");
 813     CPPUNIT_ASSERT( !dt.ParseFormat("foo", spec) );
 814     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), spec) );
 815     CPPUNIT_ASSERT( !dt.ParseFormat(s, spec) );
 816     CPPUNIT_ASSERT( !dt.ParseFormat(s.c_str(), spec) );
 817 }
 818
 819 void DateTimeTestCase::TestTimeSpanFormat()
 820 {
 821     static const struct TimeSpanFormatTestData
 822     {
 823         long h, min, sec, msec;
 824         const char *fmt;
 825         const char *result;
 826     } testSpans[] =
 827     {
 828         {   12, 34, 56, 789, "%H:%M:%S.%l",   "12:34:56.789"          },
 829         {    1,  2,  3,   0, "%H:%M:%S",      "01:02:03"              },
 830         {    1,  2,  3,   0, "%S",            "3723"                  },
 831         {   -1, -2, -3,   0, "%S",            "-3723"                 },
 832         {   -1, -2, -3,   0, "%H:%M:%S",      "-01:02:03"             },
 833         {   26,  0,  0,   0, "%H",            "26"                    },
 834         {   26,  0,  0,   0, "%D, %H",        "1, 02"                 },
 835         {  -26,  0,  0,   0, "%H",            "-26"                   },
 836         {  -26,  0,  0,   0, "%D, %H",        "-1, 02"                },
 837         {  219,  0,  0,   0, "%H",            "219"                   },
 838         {  219,  0,  0,   0, "%D, %H",        "9, 03"                 },
 839         {  219,  0,  0,   0, "%E, %D, %H",    "1, 2, 03"              },
 840         {    0, -1,  0,   0, "%H:%M:%S",      "-00:01:00"             },
 841         {    0,  0, -1,   0, "%H:%M:%S",      "-00:00:01"             },
 842     };
 843
 844     for ( size_t n = 0; n < WXSIZEOF(testSpans); n++ )
 845     {
 846         const TimeSpanFormatTestData& td = testSpans[n];
 847         wxTimeSpan ts(td.h, td.min, td.sec, td.msec);
 848         CPPUNIT_ASSERT_EQUAL( td.result, ts.Format(td.fmt) );
 849     }
 850 }
 851
 852 void DateTimeTestCase::TestTimeTicks()
 853 {
 854     static const wxDateTime::TimeZone TZ_LOCAL(wxDateTime::Local);
 855     static const wxDateTime::TimeZone TZ_TEST(wxDateTime::NZST);
 856
 857     // this offset is needed to make the test work in any time zone when we
 858     // only have expected test results in UTC in testDates
 859     static const long tzOffset = TZ_LOCAL.GetOffset() - TZ_TEST.GetOffset();
 860
 861     for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
 862     {
 863         const Date& d = testDates[n];
 864         if ( d.gmticks == -1 )
 865             continue;
 866
 867         wxDateTime dt = d.DT().MakeTimezone(TZ_TEST, true /* no DST */);
 868
 869         // GetValue() returns internal UTC-based representation, we need to
 870         // convert it to local TZ before comparing
 871         time_t ticks = (dt.GetValue() / 1000).ToLong() + TZ_LOCAL.GetOffset();
 872         if ( dt.IsDST() )
 873             ticks += 3600;
 874         CPPUNIT_ASSERT_EQUAL( d.gmticks, ticks + tzOffset );
 875
 876         dt = d.DT().FromTimezone(wxDateTime::UTC);
 877         ticks = (dt.GetValue() / 1000).ToLong();
 878         CPPUNIT_ASSERT_EQUAL( d.gmticks, ticks );
 879     }
 880 }
 881
 882 // test parsing dates in RFC822 format
 883 void DateTimeTestCase::TestParceRFC822()
 884 {
 885     static const struct ParseTestData
 886     {
 887         const char *rfc822;
 888         Date date;              // NB: this should be in UTC
 889         bool good;
 890     } parseTestDates[] =
 891     {
 892         {
 893             "Sat, 18 Dec 1999 00:46:40 +0100",
 894             { 17, wxDateTime::Dec, 1999, 23, 46, 40 },
 895             true
 896         },
 897         {
 898             "Wed, 1 Dec 1999 05:17:20 +0300",
 899             {  1, wxDateTime::Dec, 1999, 2, 17, 20 },
 900             true
 901         },
 902         {
 903             "Sun, 28 Aug 2005 03:31:30 +0200",
 904             { 28, wxDateTime::Aug, 2005, 1, 31, 30 },
 905             true
 906         },
 907
 908         {
 909             "Sat, 18 Dec 1999 10:48:30 -0500",
 910             { 18, wxDateTime::Dec, 1999, 15, 48, 30 },
 911             true
 912         },
 913
 914         // seconds are optional according to the RFC
 915         {
 916             "Sun, 01 Jun 2008 16:30 +0200",
 917             {  1, wxDateTime::Jun, 2008, 14, 30, 00 },
 918             true
 919         },
 920
 921         // try some bogus ones too
 922         {
 923             "Sun, 01 Jun 2008 16:30: +0200",
 924             { 0 },
 925             false
 926         },
 927     };
 928
 929     for ( unsigned n = 0; n < WXSIZEOF(parseTestDates); n++ )
 930     {
 931         const char * const datestr = parseTestDates[n].rfc822;
 932
 933         wxDateTime dt;
 934         if ( dt.ParseRfc822Date(datestr) )
 935         {
 936             WX_ASSERT_MESSAGE(
 937                 ("Erroneously parsed \"%s\"", datestr),
 938                 parseTestDates[n].good
 939             );
 940
 941             wxDateTime dtReal = parseTestDates[n].date.DT().FromUTC();
 942             CPPUNIT_ASSERT_EQUAL( dtReal, dt );
 943         }
 944         else // failed to parse
 945         {
 946             WX_ASSERT_MESSAGE(
 947                 ("Failed to parse \"%s\"", datestr),
 948                 !parseTestDates[n].good
 949             );
 950         }
 951     }
 952 }
 953
 954 // test parsing dates in free format
 955 void DateTimeTestCase::TestDateParse()
 956 {
 957     static const struct ParseTestData
 958     {
 959         const char *str;
 960         Date date;              // NB: this should be in UTC
 961         bool good;
 962     } parseTestDates[] =
 963     {
 964         { "21 Mar 2006", { 21, wxDateTime::Mar, 2006 }, true },
 965         { "29 Feb 1976", { 29, wxDateTime::Feb, 1976 }, true },
 966         { "Feb 29 1976", { 29, wxDateTime::Feb, 1976 }, true },
 967         { "31/03/06",    { 31, wxDateTime::Mar,    6 }, true },
 968         { "31/03/2006",  { 31, wxDateTime::Mar, 2006 }, true },
 969
 970         // some invalid ones too
 971         { "29 Feb 2006" },
 972         { "31/04/06" },
 973         { "bloordyblop" },
 974     };
 975
 976     // special cases
 977     wxDateTime dt;
 978     CPPUNIT_ASSERT( dt.ParseDate(_T("today")) );
 979     CPPUNIT_ASSERT_EQUAL( wxDateTime::Today(), dt );
 980
 981     for ( size_t n = 0; n < WXSIZEOF(parseTestDates); n++ )
 982     {
 983         const wxString datestr = TranslateDate(parseTestDates[n].str);
 984
 985         const char * const end = dt.ParseDate(datestr);
 986         if ( end && !*end )
 987         {
 988             WX_ASSERT_MESSAGE(
 989                 ("Erroneously parsed \"%s\"", datestr),
 990                 parseTestDates[n].good
 991             );
 992
 993             CPPUNIT_ASSERT_EQUAL( parseTestDates[n].date.DT(), dt );
 994         }
 995         else // failed to parse
 996         {
 997             WX_ASSERT_MESSAGE(
 998                 ("Failed to parse \"%s\"", datestr),
 999                 !parseTestDates[n].good
1000             );
1001         }
1002     }
1003 }
1004
1005 void DateTimeTestCase::TestDateParseISO()
1006 {
1007     static const struct
1008     {
1009         const char *str;
1010         Date date;              // NB: this should be in UTC
1011         bool good;
1012     } parseTestDates[] =
1013     {
1014         { "2006-03-21", { 21, wxDateTime::Mar, 2006 }, true },
1015         { "1976-02-29", { 29, wxDateTime::Feb, 1976 }, true },
1016         { "0006-03-31", { 31, wxDateTime::Mar,    6 }, true },
1017
1018         // some invalid ones too
1019         { "2006:03:31" },
1020         { "31/04/06" },
1021         { "bloordyblop" },
1022         { "" },
1023     };
1024
1025     static const struct
1026     {
1027         const char *str;
1028         wxDateTime::wxDateTime_t hour, min, sec;
1029         bool good;
1030     } parseTestTimes[] =
1031     {
1032         { "13:42:17", 13, 42, 17, true },
1033         { "02:17:01",  2, 17,  1, true },
1034
1035         // some invalid ones too
1036         { "66:03:31" },
1037         { "31/04/06" },
1038         { "bloordyblop" },
1039         { "" },
1040     };
1041
1042     for ( size_t n = 0; n < WXSIZEOF(parseTestDates); n++ )
1043     {
1044         wxDateTime dt;
1045         if ( dt.ParseISODate(parseTestDates[n].str) )
1046         {
1047             CPPUNIT_ASSERT( parseTestDates[n].good );
1048
1049             CPPUNIT_ASSERT_EQUAL( parseTestDates[n].date.DT(), dt );
1050
1051             for ( size_t m = 0; m < WXSIZEOF(parseTestTimes); m++ )
1052             {
1053                 wxString dtCombined;
1054                 dtCombined << parseTestDates[n].str
1055                            << 'T'
1056                            << parseTestTimes[m].str;
1057
1058                 if ( dt.ParseISOCombined(dtCombined) )
1059                 {
1060                     CPPUNIT_ASSERT( parseTestTimes[m].good );
1061
1062                     CPPUNIT_ASSERT_EQUAL( parseTestTimes[m].hour, dt.GetHour()) ;
1063                     CPPUNIT_ASSERT_EQUAL( parseTestTimes[m].min, dt.GetMinute()) ;
1064                     CPPUNIT_ASSERT_EQUAL( parseTestTimes[m].sec, dt.GetSecond()) ;
1065                 }
1066                 else // failed to parse combined date/time
1067                 {
1068                     CPPUNIT_ASSERT( !parseTestTimes[m].good );
1069                 }
1070             }
1071         }
1072         else // failed to parse
1073         {
1074             CPPUNIT_ASSERT( !parseTestDates[n].good );
1075         }
1076     }
1077 }
1078
1079 void DateTimeTestCase::TestDateTimeParse()
1080 {
1081     static const struct ParseTestData
1082     {
1083         const char *str;
1084         Date date;              // NB: this should be in UTC
1085         bool good;
1086     } parseTestDates[] =
1087     {
1088         { "Thu 22 Nov 2007 07:40:00 PM",
1089          { 22, wxDateTime::Nov, 2007, 19, 40, 0}, true },
1090     };
1091
1092     // the test strings here use "PM" which is not available in all locales so
1093     // we need to use "C" locale for them
1094     CLocaleSetter cloc;
1095
1096     wxDateTime dt;
1097     for ( size_t n = 0; n < WXSIZEOF(parseTestDates); n++ )
1098     {
1099         const wxString datestr = TranslateDate(parseTestDates[n].str);
1100
1101         const char * const end = dt.ParseDateTime(datestr);
1102         if ( end && !*end )
1103         {
1104             WX_ASSERT_MESSAGE(
1105                 ("Erroneously parsed \"%s\"", datestr),
1106                 parseTestDates[n].good
1107             );
1108
1109             CPPUNIT_ASSERT_EQUAL( parseTestDates[n].date.DT(), dt );
1110         }
1111         else // failed to parse
1112         {
1113             WX_ASSERT_MESSAGE(
1114                 ("Failed to parse \"%s\"", datestr),
1115                 !parseTestDates[n].good
1116             );
1117
1118             CPPUNIT_ASSERT( !parseTestDates[n].good );
1119         }
1120     }
1121 }
1122
1123 void DateTimeTestCase::TestTimeArithmetics()
1124 {
1125     static const wxDateSpan testArithmData[] =
1126     {
1127         wxDateSpan::Day(),
1128         wxDateSpan::Week(),
1129         wxDateSpan::Month(),
1130         wxDateSpan::Year(),
1131     };
1132
1133     // the test will *not* work with arbitrary date!
1134     wxDateTime dt(2, wxDateTime::Dec, 1999),
1135                dt1,
1136                dt2;
1137
1138     for ( size_t n = 0; n < WXSIZEOF(testArithmData); n++ )
1139     {
1140         const wxDateSpan& span = testArithmData[n];
1141         dt1 = dt + span;
1142         dt2 = dt - span;
1143
1144         CPPUNIT_ASSERT_EQUAL( dt, dt1 - span );
1145         CPPUNIT_ASSERT_EQUAL( dt, dt2 + span );
1146         CPPUNIT_ASSERT_EQUAL( dt1, dt2 + 2*span );
1147     }
1148 }
1149
1150 void DateTimeTestCase::TestDSTBug()
1151 {
1152     /////////////////////////
1153     // Test GetEndDST()
1154     wxDateTime dt = wxDateTime::GetEndDST(2004, wxDateTime::France);
1155     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1156     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1157     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1158     CPPUNIT_ASSERT_EQUAL(1, (int)dt.GetHour());
1159     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
1160     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1161     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1162
1163     /////////////////////////
1164     // Test ResetTime()
1165     dt.SetHour(5);
1166     CPPUNIT_ASSERT_EQUAL(5, (int)dt.GetHour());
1167     dt.ResetTime();
1168     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1169     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1170     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1171     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetHour());
1172     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
1173     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1174     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1175
1176     dt.Set(1, 0, 0, 0);
1177     CPPUNIT_ASSERT_EQUAL(1, (int)dt.GetHour());
1178
1179     /////////////////////////
1180     // Test Today()
1181 #ifdef CHANGE_SYSTEM_DATE
1182     {
1183         DateChanger change(2004, 10, 31, 5, 0, 0);
1184         dt = wxDateTime::Today();
1185     }
1186
1187     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1188     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1189     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1190     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetHour());
1191     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
1192     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1193     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1194
1195     /////////////////////////
1196     // Test Set(hour, minute, second, milli)
1197     wxDateTime dt2;
1198     {
1199         DateChanger change(2004, 10, 31, 5, 0, 0);
1200         dt.Set(1, 30, 0, 0);
1201         dt2.Set(5, 30, 0, 0);
1202     }
1203
1204     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1205     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1206     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1207     CPPUNIT_ASSERT_EQUAL(1, (int)dt.GetHour());
1208     CPPUNIT_ASSERT_EQUAL(30, (int)dt.GetMinute());
1209     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1210     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1211
1212     CPPUNIT_ASSERT_EQUAL(31, (int)dt2.GetDay());
1213     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt2.GetMonth());
1214     CPPUNIT_ASSERT_EQUAL(2004, (int)dt2.GetYear());
1215     CPPUNIT_ASSERT_EQUAL(5, (int)dt2.GetHour());
1216     CPPUNIT_ASSERT_EQUAL(30, (int)dt2.GetMinute());
1217     CPPUNIT_ASSERT_EQUAL(0, (int)dt2.GetSecond());
1218     CPPUNIT_ASSERT_EQUAL(0, (int)dt2.GetMillisecond());
1219 #endif // CHANGE_SYSTEM_DATE
1220 }
1221
1222 void DateTimeTestCase::TestDateOnly()
1223 {
1224     wxDateTime dt(19, wxDateTime::Jan, 2007, 15, 01, 00);
1225
1226     static const wxDateTime::wxDateTime_t DATE_ZERO = 0;
1227     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetHour() );
1228     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetMinute() );
1229     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetSecond() );
1230     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetMillisecond() );
1231
1232     dt.ResetTime();
1233     CPPUNIT_ASSERT_EQUAL( wxDateTime(19, wxDateTime::Jan, 2007), dt );
1234
1235     CPPUNIT_ASSERT_EQUAL( wxDateTime::Today(), wxDateTime::Now().GetDateOnly() );
1236 }
1237
1238 #endif // wxUSE_DATETIME