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(wxT("%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 ? wxT("AD") : wxT("BC"));
 184         return s;
 185     }
 186
 187     wxString FormatDate() const
 188     {
 189         wxString s;
 190         s.Printf(wxT("%02d-%s-%4d%s"),
 191                  day,
 192                  wxDateTime::GetMonthName(month, wxDateTime::Name_Abbr).c_str(),
 193                  abs(wxDateTime::ConvertYearToBC(year)),
 194                  year > 0 ? wxT("AD") : wxT("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 = wxT("first"); break;
 378                 case 2: which = wxT("second"); break;
 379                 case 3: which = wxT("third"); break;
 380                 case 4: which = wxT("fourth"); break;
 381                 case 5: which = wxT("fifth"); break;
 382
 383                 case -1: which = wxT("last"); break;
 384             }
 385
 386             if ( nWeek < -1 )
 387             {
 388                 which += wxT(" from end");
 389             }
 390
 391             s.Printf(wxT("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         { {  5, wxDateTime::Jan, 2010, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 2, 2,   5 },
 559         { {  3, wxDateTime::Jan, 2011, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 2, 2,   3 },
 560     };
 561
 562     for ( size_t n = 0; n < WXSIZEOF(weekNumberTestDates); n++ )
 563     {
 564         const WeekNumberTestData& wn = weekNumberTestDates[n];
 565         const Date& d = wn.date;
 566
 567         wxDateTime dt = d.DT();
 568
 569         wxDateTime::wxDateTime_t
 570             week = dt.GetWeekOfYear(wxDateTime::Monday_First),
 571             wmon = dt.GetWeekOfMonth(wxDateTime::Monday_First),
 572             wmon2 = dt.GetWeekOfMonth(wxDateTime::Sunday_First),
 573             dnum = dt.GetDayOfYear();
 574
 575         WX_ASSERT_EQUAL_MESSAGE( ("day of year for %s", d.Format()),
 576                                  wn.dnum, dnum );
 577         WX_ASSERT_EQUAL_MESSAGE( ("week of month (Monday) for %s", d.Format()),
 578                                  wn.wmon, wmon );
 579         WX_ASSERT_EQUAL_MESSAGE( ("week of month (Sunday) for %s", d.Format()),
 580                                  wn.wmon2, wmon2 );
 581         WX_ASSERT_EQUAL_MESSAGE( ("week of year for %s", d.Format()),
 582                                  wn.week, week );
 583
 584         int year = d.year;
 585         if ( week == 1 && d.month != wxDateTime::Jan )
 586         {
 587             // this means we're in the first week of the next year
 588             year++;
 589         }
 590
 591         wxDateTime
 592             dt2 = wxDateTime::SetToWeekOfYear(year, week, dt.GetWeekDay());
 593         CPPUNIT_ASSERT_EQUAL( dt, dt2 );
 594     }
 595 }
 596
 597 // test DST applicability
 598 void DateTimeTestCase::TestTimeDST()
 599 {
 600     // taken from http://www.energy.ca.gov/daylightsaving.html
 601     static const Date datesDST[2][2009 - 1990 + 1] =
 602     {
 603         {
 604             { 1, wxDateTime::Apr, 1990, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 605             { 7, wxDateTime::Apr, 1991, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 606             { 5, wxDateTime::Apr, 1992, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 607             { 4, wxDateTime::Apr, 1993, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 608             { 3, wxDateTime::Apr, 1994, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 609             { 2, wxDateTime::Apr, 1995, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 610             { 7, wxDateTime::Apr, 1996, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 611             { 6, wxDateTime::Apr, 1997, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 612             { 5, wxDateTime::Apr, 1998, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 613             { 4, wxDateTime::Apr, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 614             { 2, wxDateTime::Apr, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 615             { 1, wxDateTime::Apr, 2001, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 616             { 7, wxDateTime::Apr, 2002, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 617             { 6, wxDateTime::Apr, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 618             { 4, wxDateTime::Apr, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 619             { 3, wxDateTime::Apr, 2005, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 620             { 2, wxDateTime::Apr, 2006, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 621             {11, wxDateTime::Mar, 2007, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 622             { 9, wxDateTime::Mar, 2008, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 623             { 8, wxDateTime::Mar, 2009, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 624         },
 625         {
 626             { 28, wxDateTime::Oct, 1990, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 627             { 27, wxDateTime::Oct, 1991, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 628             { 25, wxDateTime::Oct, 1992, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 629             { 31, wxDateTime::Oct, 1993, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 630             { 30, wxDateTime::Oct, 1994, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 631             { 29, wxDateTime::Oct, 1995, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 632             { 27, wxDateTime::Oct, 1996, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 633             { 26, wxDateTime::Oct, 1997, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 634             { 25, wxDateTime::Oct, 1998, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 635             { 31, wxDateTime::Oct, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 636             { 29, wxDateTime::Oct, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 637             { 28, wxDateTime::Oct, 2001, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 638             { 27, wxDateTime::Oct, 2002, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 639             { 26, wxDateTime::Oct, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 640             { 31, wxDateTime::Oct, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 641             { 30, wxDateTime::Oct, 2005, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 642             { 29, wxDateTime::Oct, 2006, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 643             {  4, wxDateTime::Nov, 2007, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 644             {  2, wxDateTime::Nov, 2008, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 645             {  1, wxDateTime::Nov, 2009, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 646
 647         }
 648     };
 649
 650     for ( size_t n = 0; n < WXSIZEOF(datesDST[0]); n++ )
 651     {
 652         const int year = 1990 + n;
 653         wxDateTime dtBegin = wxDateTime::GetBeginDST(year, wxDateTime::USA),
 654                    dtEnd = wxDateTime::GetEndDST(year, wxDateTime::USA);
 655
 656         const Date& dBegin = datesDST[0][n];
 657         const Date& dEnd = datesDST[1][n];
 658
 659         CPPUNIT_ASSERT_EQUAL( dBegin.DT().FormatDate(), dtBegin.FormatDate() );
 660         CPPUNIT_ASSERT_EQUAL( dEnd.DT().FormatDate(), dtEnd.FormatDate() );
 661     }
 662 }
 663
 664 // test wxDateTime -> text conversion
 665 void DateTimeTestCase::TestTimeFormat()
 666 {
 667     // some information may be lost during conversion, so store what kind
 668     // of info should we recover after a round trip
 669     enum CompareKind
 670     {
 671         CompareNone,        // don't try comparing
 672         CompareBoth,        // dates and times should be identical
 673         CompareYear,        // don't compare centuries (fails for 2 digit years)
 674         CompareDate,        // dates only
 675         CompareTime         // time only
 676     };
 677
 678     static const struct
 679     {
 680         CompareKind compareKind;
 681         const char *format;
 682     } formatTestFormats[] =
 683     {
 684        { CompareYear, "---> %c" }, // %c could use 2 digit years
 685        { CompareDate, "Date is %A, %d of %B, in year %Y" },
 686        { CompareYear, "Date is %x, time is %X" }, // %x could use 2 digits
 687        { CompareTime, "Time is %H:%M:%S or %I:%M:%S %p" },
 688        { CompareNone, "The day of year: %j, the week of year: %W" },
 689        { CompareDate, "ISO date without separators: %Y%m%d" },
 690     };
 691
 692     static const Date formatTestDates[] =
 693     {
 694         { 29, wxDateTime::May, 1976, 18, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 695         { 31, wxDateTime::Dec, 1999, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 696         {  6, wxDateTime::Feb, 1937, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 697         {  6, wxDateTime::Feb, 1856, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 698         {  6, wxDateTime::Feb, 1857, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 699         { 29, wxDateTime::May, 2076, 18, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 700
 701         // FIXME: the test with 02:15:25 time doesn't pass because of DST
 702         //        computation problems, we get back 03:15:25
 703         { 29, wxDateTime::Feb, 2400, 04, 15, 25, 0.0, wxDateTime::Inv_WeekDay },
 704 #if 0
 705         // Need to add support for BCE dates.
 706         { 01, wxDateTime::Jan,  -52, 03, 16, 47, 0.0, wxDateTime::Inv_WeekDay },
 707 #endif
 708     };
 709
 710     for ( size_t d = 0; d < WXSIZEOF(formatTestDates); d++ )
 711     {
 712         wxDateTime dt = formatTestDates[d].DT();
 713         for ( unsigned n = 0; n < WXSIZEOF(formatTestFormats); n++ )
 714         {
 715             const char *fmt = formatTestFormats[n].format;
 716
 717             // skip the check with %p for those locales which have empty AM/PM strings:
 718             // for those locales it's impossible to pass the test with %p...
 719             wxString am, pm;
 720             wxDateTime::GetAmPmStrings(&am, &pm);
 721             if (am.empty() && pm.empty() && wxStrstr(fmt, "%p") != NULL)
 722                 continue;
 723
 724             wxString s = dt.Format(fmt);
 725
 726             // what can we recover?
 727             CompareKind kind = formatTestFormats[n].compareKind;
 728
 729             // convert back
 730             wxDateTime dt2;
 731             const char *result = dt2.ParseFormat(s, fmt);
 732             if ( !result )
 733             {
 734                 // conversion failed - should it have?
 735                 WX_ASSERT_MESSAGE(
 736                     ("Test #%lu failed: failed to parse \"%s\"", n, s),
 737                     kind == CompareNone
 738                 );
 739             }
 740             else // conversion succeeded
 741             {
 742                 // currently ParseFormat() doesn't support "%Z" and so is
 743                 // incapable of parsing time zone part used at the end of date
 744                 // representations in many (but not "C") locales, compensate
 745                 // for it ourselves by simply consuming and ignoring it
 746                 while ( *result && (*result >= 'A' && *result <= 'Z') )
 747                     result++;
 748
 749                 WX_ASSERT_MESSAGE(
 750                     ("Test #%lu failed: \"%s\" was left unparsed in \"%s\"",
 751                      n, result, s),
 752                     !*result
 753                 );
 754
 755                 switch ( kind )
 756                 {
 757                     case CompareYear:
 758                         if ( dt2.GetCentury() != dt.GetCentury() )
 759                         {
 760                             CPPUNIT_ASSERT_EQUAL(dt.GetYear() % 100,
 761                                                  dt2.GetYear() % 100);
 762
 763                             dt2.SetYear(dt.GetYear());
 764                         }
 765                         // fall through and compare everything
 766
 767                     case CompareBoth:
 768                         CPPUNIT_ASSERT_EQUAL( dt, dt2 );
 769                         break;
 770
 771                     case CompareDate:
 772                         CPPUNIT_ASSERT( dt.IsSameDate(dt2) );
 773                         break;
 774
 775                     case CompareTime:
 776                         CPPUNIT_ASSERT( dt.IsSameTime(dt2) );
 777                         break;
 778
 779                     case CompareNone:
 780                         wxFAIL_MSG( wxT("unexpected") );
 781                         break;
 782                 }
 783             }
 784         }
 785     }
 786
 787     wxDateTime dt;
 788
 789 #if 0
 790     // special case which was known to fail
 791     CPPUNIT_ASSERT( dt.ParseFormat("02/06/1856", "%x") );
 792     CPPUNIT_ASSERT_EQUAL( 1856, dt.GetYear() );
 793 #endif
 794
 795     // also test %l separately
 796     CPPUNIT_ASSERT( dt.ParseFormat("12:23:45.678", "%H:%M:%S.%l") );
 797     CPPUNIT_ASSERT_EQUAL( 678, dt.GetMillisecond() );
 798
 799     // test special case of %l matching 0 milliseconds
 800     CPPUNIT_ASSERT( dt.ParseFormat("12:23:45.000", "%H:%M:%S.%l") );
 801     CPPUNIT_ASSERT_EQUAL( 0, dt.GetMillisecond() );
 802
 803     // test partially specified dates too
 804     wxDateTime dtDef(26, wxDateTime::Sep, 2008);
 805     CPPUNIT_ASSERT( dt.ParseFormat("17", "%d") );
 806     CPPUNIT_ASSERT_EQUAL( 17, dt.GetDay() );
 807
 808     // test compilation of some calls which should compile (and not result in
 809     // ambiguity because of char*<->wxCStrData<->wxString conversions)
 810     wxString s("foo");
 811     CPPUNIT_ASSERT( !dt.ParseFormat("foo") );
 812     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo")) );
 813     CPPUNIT_ASSERT( !dt.ParseFormat(s) );
 814     CPPUNIT_ASSERT( !dt.ParseFormat(s.c_str()) );
 815
 816     CPPUNIT_ASSERT( !dt.ParseFormat("foo", "%c") );
 817     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), "%c") );
 818     CPPUNIT_ASSERT( !dt.ParseFormat(s, "%c") );
 819     CPPUNIT_ASSERT( !dt.ParseFormat(s.c_str(), "%c") );
 820
 821     CPPUNIT_ASSERT( !dt.ParseFormat("foo", wxT("%c")) );
 822     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), wxT("%c")) );
 823     CPPUNIT_ASSERT( !dt.ParseFormat(s, "%c") );
 824     CPPUNIT_ASSERT( !dt.ParseFormat(s.c_str(), wxT("%c")) );
 825
 826     wxString spec("%c");
 827     CPPUNIT_ASSERT( !dt.ParseFormat("foo", spec) );
 828     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), spec) );
 829     CPPUNIT_ASSERT( !dt.ParseFormat(s, spec) );
 830     CPPUNIT_ASSERT( !dt.ParseFormat(s.c_str(), spec) );
 831 }
 832
 833 void DateTimeTestCase::TestTimeSpanFormat()
 834 {
 835     static const struct TimeSpanFormatTestData
 836     {
 837         long h, min, sec, msec;
 838         const char *fmt;
 839         const char *result;
 840     } testSpans[] =
 841     {
 842         {   12, 34, 56, 789, "%H:%M:%S.%l",   "12:34:56.789"          },
 843         {    1,  2,  3,   0, "%H:%M:%S",      "01:02:03"              },
 844         {    1,  2,  3,   0, "%S",            "3723"                  },
 845         {   -1, -2, -3,   0, "%S",            "-3723"                 },
 846         {   -1, -2, -3,   0, "%H:%M:%S",      "-01:02:03"             },
 847         {   26,  0,  0,   0, "%H",            "26"                    },
 848         {   26,  0,  0,   0, "%D, %H",        "1, 02"                 },
 849         {  -26,  0,  0,   0, "%H",            "-26"                   },
 850         {  -26,  0,  0,   0, "%D, %H",        "-1, 02"                },
 851         {  219,  0,  0,   0, "%H",            "219"                   },
 852         {  219,  0,  0,   0, "%D, %H",        "9, 03"                 },
 853         {  219,  0,  0,   0, "%E, %D, %H",    "1, 2, 03"              },
 854         {    0, -1,  0,   0, "%H:%M:%S",      "-00:01:00"             },
 855         {    0,  0, -1,   0, "%H:%M:%S",      "-00:00:01"             },
 856     };
 857
 858     for ( size_t n = 0; n < WXSIZEOF(testSpans); n++ )
 859     {
 860         const TimeSpanFormatTestData& td = testSpans[n];
 861         wxTimeSpan ts(td.h, td.min, td.sec, td.msec);
 862         CPPUNIT_ASSERT_EQUAL( td.result, ts.Format(td.fmt) );
 863     }
 864 }
 865
 866 void DateTimeTestCase::TestTimeTicks()
 867 {
 868     static const wxDateTime::TimeZone TZ_LOCAL(wxDateTime::Local);
 869     static const wxDateTime::TimeZone TZ_TEST(wxDateTime::NZST);
 870
 871     // this offset is needed to make the test work in any time zone when we
 872     // only have expected test results in UTC in testDates
 873     static const long tzOffset = TZ_LOCAL.GetOffset() - TZ_TEST.GetOffset();
 874
 875     for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
 876     {
 877         const Date& d = testDates[n];
 878         if ( d.gmticks == -1 )
 879             continue;
 880
 881         wxDateTime dt = d.DT().MakeTimezone(TZ_TEST, true /* no DST */);
 882
 883         // GetValue() returns internal UTC-based representation, we need to
 884         // convert it to local TZ before comparing
 885         time_t ticks = (dt.GetValue() / 1000).ToLong() + TZ_LOCAL.GetOffset();
 886         if ( dt.IsDST() )
 887             ticks += 3600;
 888         CPPUNIT_ASSERT_EQUAL( d.gmticks, ticks + tzOffset );
 889
 890         dt = d.DT().FromTimezone(wxDateTime::UTC);
 891         ticks = (dt.GetValue() / 1000).ToLong();
 892         CPPUNIT_ASSERT_EQUAL( d.gmticks, ticks );
 893     }
 894 }
 895
 896 // test parsing dates in RFC822 format
 897 void DateTimeTestCase::TestParceRFC822()
 898 {
 899     static const struct ParseTestData
 900     {
 901         const char *rfc822;
 902         Date date;              // NB: this should be in UTC
 903         bool good;
 904     } parseTestDates[] =
 905     {
 906         {
 907             "Sat, 18 Dec 1999 00:46:40 +0100",
 908             { 17, wxDateTime::Dec, 1999, 23, 46, 40 },
 909             true
 910         },
 911         {
 912             "Wed, 1 Dec 1999 05:17:20 +0300",
 913             {  1, wxDateTime::Dec, 1999, 2, 17, 20 },
 914             true
 915         },
 916         {
 917             "Sun, 28 Aug 2005 03:31:30 +0200",
 918             { 28, wxDateTime::Aug, 2005, 1, 31, 30 },
 919             true
 920         },
 921
 922         {
 923             "Sat, 18 Dec 1999 10:48:30 -0500",
 924             { 18, wxDateTime::Dec, 1999, 15, 48, 30 },
 925             true
 926         },
 927
 928         // seconds are optional according to the RFC
 929         {
 930             "Sun, 01 Jun 2008 16:30 +0200",
 931             {  1, wxDateTime::Jun, 2008, 14, 30, 00 },
 932             true
 933         },
 934
 935         // try some bogus ones too
 936         {
 937             "Sun, 01 Jun 2008 16:30: +0200",
 938             { 0 },
 939             false
 940         },
 941     };
 942
 943     for ( unsigned n = 0; n < WXSIZEOF(parseTestDates); n++ )
 944     {
 945         const char * const datestr = parseTestDates[n].rfc822;
 946
 947         wxDateTime dt;
 948         if ( dt.ParseRfc822Date(datestr) )
 949         {
 950             WX_ASSERT_MESSAGE(
 951                 ("Erroneously parsed \"%s\"", datestr),
 952                 parseTestDates[n].good
 953             );
 954
 955             wxDateTime dtReal = parseTestDates[n].date.DT().FromUTC();
 956             CPPUNIT_ASSERT_EQUAL( dtReal, dt );
 957         }
 958         else // failed to parse
 959         {
 960             WX_ASSERT_MESSAGE(
 961                 ("Failed to parse \"%s\"", datestr),
 962                 !parseTestDates[n].good
 963             );
 964         }
 965     }
 966 }
 967
 968 // test parsing dates in free format
 969 void DateTimeTestCase::TestDateParse()
 970 {
 971     static const struct ParseTestData
 972     {
 973         const char *str;
 974         Date date;              // NB: this should be in UTC
 975         bool good;
 976     } parseTestDates[] =
 977     {
 978         { "21 Mar 2006", { 21, wxDateTime::Mar, 2006 }, true },
 979         { "29 Feb 1976", { 29, wxDateTime::Feb, 1976 }, true },
 980         { "Feb 29 1976", { 29, wxDateTime::Feb, 1976 }, true },
 981         { "31/03/06",    { 31, wxDateTime::Mar,    6 }, true },
 982         { "31/03/2006",  { 31, wxDateTime::Mar, 2006 }, true },
 983
 984         // some invalid ones too
 985         { "29 Feb 2006" },
 986         { "31/04/06" },
 987         { "bloordyblop" },
 988     };
 989
 990     // special cases
 991     wxDateTime dt;
 992     CPPUNIT_ASSERT( dt.ParseDate(wxT("today")) );
 993     CPPUNIT_ASSERT_EQUAL( wxDateTime::Today(), dt );
 994
 995     for ( size_t n = 0; n < WXSIZEOF(parseTestDates); n++ )
 996     {
 997         const wxString datestr = TranslateDate(parseTestDates[n].str);
 998
 999         const char * const end = dt.ParseDate(datestr);
1000         if ( end && !*end )
1001         {
1002             WX_ASSERT_MESSAGE(
1003                 ("Erroneously parsed \"%s\"", datestr),
1004                 parseTestDates[n].good
1005             );
1006
1007             CPPUNIT_ASSERT_EQUAL( parseTestDates[n].date.DT(), dt );
1008         }
1009         else // failed to parse
1010         {
1011             WX_ASSERT_MESSAGE(
1012                 ("Failed to parse \"%s\"", datestr),
1013                 !parseTestDates[n].good
1014             );
1015         }
1016     }
1017 }
1018
1019 void DateTimeTestCase::TestDateParseISO()
1020 {
1021     static const struct
1022     {
1023         const char *str;
1024         Date date;              // NB: this should be in UTC
1025         bool good;
1026     } parseTestDates[] =
1027     {
1028         { "2006-03-21", { 21, wxDateTime::Mar, 2006 }, true },
1029         { "1976-02-29", { 29, wxDateTime::Feb, 1976 }, true },
1030         { "0006-03-31", { 31, wxDateTime::Mar,    6 }, true },
1031
1032         // some invalid ones too
1033         { "2006:03:31" },
1034         { "31/04/06" },
1035         { "bloordyblop" },
1036         { "" },
1037     };
1038
1039     static const struct
1040     {
1041         const char *str;
1042         wxDateTime::wxDateTime_t hour, min, sec;
1043         bool good;
1044     } parseTestTimes[] =
1045     {
1046         { "13:42:17", 13, 42, 17, true },
1047         { "02:17:01",  2, 17,  1, true },
1048
1049         // some invalid ones too
1050         { "66:03:31" },
1051         { "31/04/06" },
1052         { "bloordyblop" },
1053         { "" },
1054     };
1055
1056     for ( size_t n = 0; n < WXSIZEOF(parseTestDates); n++ )
1057     {
1058         wxDateTime dt;
1059         if ( dt.ParseISODate(parseTestDates[n].str) )
1060         {
1061             CPPUNIT_ASSERT( parseTestDates[n].good );
1062
1063             CPPUNIT_ASSERT_EQUAL( parseTestDates[n].date.DT(), dt );
1064
1065             for ( size_t m = 0; m < WXSIZEOF(parseTestTimes); m++ )
1066             {
1067                 wxString dtCombined;
1068                 dtCombined << parseTestDates[n].str
1069                            << 'T'
1070                            << parseTestTimes[m].str;
1071
1072                 if ( dt.ParseISOCombined(dtCombined) )
1073                 {
1074                     CPPUNIT_ASSERT( parseTestTimes[m].good );
1075
1076                     CPPUNIT_ASSERT_EQUAL( parseTestTimes[m].hour, dt.GetHour()) ;
1077                     CPPUNIT_ASSERT_EQUAL( parseTestTimes[m].min, dt.GetMinute()) ;
1078                     CPPUNIT_ASSERT_EQUAL( parseTestTimes[m].sec, dt.GetSecond()) ;
1079                 }
1080                 else // failed to parse combined date/time
1081                 {
1082                     CPPUNIT_ASSERT( !parseTestTimes[m].good );
1083                 }
1084             }
1085         }
1086         else // failed to parse
1087         {
1088             CPPUNIT_ASSERT( !parseTestDates[n].good );
1089         }
1090     }
1091 }
1092
1093 void DateTimeTestCase::TestDateTimeParse()
1094 {
1095     static const struct ParseTestData
1096     {
1097         const char *str;
1098         Date date;              // NB: this should be in UTC
1099         bool good;
1100     } parseTestDates[] =
1101     {
1102         {
1103             "Thu 22 Nov 2007 07:40:00 PM",
1104             { 22, wxDateTime::Nov, 2007, 19, 40,  0 },
1105             true
1106         },
1107
1108         {
1109             "2010-01-04 14:30",
1110             {  4, wxDateTime::Jan, 2010, 14, 30,  0 },
1111             true
1112         },
1113
1114         {
1115             "bloordyblop",
1116             {  1, wxDateTime::Jan, 9999,  0,  0,  0},
1117             false
1118         },
1119     };
1120
1121     // the test strings here use "PM" which is not available in all locales so
1122     // we need to use "C" locale for them
1123     CLocaleSetter cloc;
1124
1125     wxDateTime dt;
1126     for ( size_t n = 0; n < WXSIZEOF(parseTestDates); n++ )
1127     {
1128         const wxString datestr = TranslateDate(parseTestDates[n].str);
1129
1130         const char * const end = dt.ParseDateTime(datestr);
1131         if ( end && !*end )
1132         {
1133             WX_ASSERT_MESSAGE(
1134                 ("Erroneously parsed \"%s\"", datestr),
1135                 parseTestDates[n].good
1136             );
1137
1138             CPPUNIT_ASSERT_EQUAL( parseTestDates[n].date.DT(), dt );
1139         }
1140         else // failed to parse
1141         {
1142             WX_ASSERT_MESSAGE(
1143                 ("Failed to parse \"%s\"", datestr),
1144                 !parseTestDates[n].good
1145             );
1146
1147             CPPUNIT_ASSERT( !parseTestDates[n].good );
1148         }
1149     }
1150 }
1151
1152 void DateTimeTestCase::TestTimeArithmetics()
1153 {
1154     static const wxDateSpan testArithmData[] =
1155     {
1156         wxDateSpan::Day(),
1157         wxDateSpan::Week(),
1158         wxDateSpan::Month(),
1159         wxDateSpan::Year(),
1160     };
1161
1162     // the test will *not* work with arbitrary date!
1163     wxDateTime dt(2, wxDateTime::Dec, 1999),
1164                dt1,
1165                dt2;
1166
1167     for ( size_t n = 0; n < WXSIZEOF(testArithmData); n++ )
1168     {
1169         const wxDateSpan& span = testArithmData[n];
1170         dt1 = dt + span;
1171         dt2 = dt - span;
1172
1173         CPPUNIT_ASSERT_EQUAL( dt, dt1 - span );
1174         CPPUNIT_ASSERT_EQUAL( dt, dt2 + span );
1175         CPPUNIT_ASSERT_EQUAL( dt1, dt2 + 2*span );
1176     }
1177 }
1178
1179 void DateTimeTestCase::TestDSTBug()
1180 {
1181     /////////////////////////
1182     // Test GetEndDST()
1183     wxDateTime dt = wxDateTime::GetEndDST(2004, wxDateTime::France);
1184     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1185     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1186     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1187     CPPUNIT_ASSERT_EQUAL(1, (int)dt.GetHour());
1188     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
1189     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1190     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1191
1192     /////////////////////////
1193     // Test ResetTime()
1194     dt.SetHour(5);
1195     CPPUNIT_ASSERT_EQUAL(5, (int)dt.GetHour());
1196     dt.ResetTime();
1197     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1198     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1199     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1200     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetHour());
1201     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
1202     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1203     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1204
1205     dt.Set(1, 0, 0, 0);
1206     CPPUNIT_ASSERT_EQUAL(1, (int)dt.GetHour());
1207
1208     /////////////////////////
1209     // Test Today()
1210 #ifdef CHANGE_SYSTEM_DATE
1211     {
1212         DateChanger change(2004, 10, 31, 5, 0, 0);
1213         dt = wxDateTime::Today();
1214     }
1215
1216     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1217     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1218     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1219     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetHour());
1220     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
1221     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1222     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1223
1224     /////////////////////////
1225     // Test Set(hour, minute, second, milli)
1226     wxDateTime dt2;
1227     {
1228         DateChanger change(2004, 10, 31, 5, 0, 0);
1229         dt.Set(1, 30, 0, 0);
1230         dt2.Set(5, 30, 0, 0);
1231     }
1232
1233     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1234     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1235     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1236     CPPUNIT_ASSERT_EQUAL(1, (int)dt.GetHour());
1237     CPPUNIT_ASSERT_EQUAL(30, (int)dt.GetMinute());
1238     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1239     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1240
1241     CPPUNIT_ASSERT_EQUAL(31, (int)dt2.GetDay());
1242     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt2.GetMonth());
1243     CPPUNIT_ASSERT_EQUAL(2004, (int)dt2.GetYear());
1244     CPPUNIT_ASSERT_EQUAL(5, (int)dt2.GetHour());
1245     CPPUNIT_ASSERT_EQUAL(30, (int)dt2.GetMinute());
1246     CPPUNIT_ASSERT_EQUAL(0, (int)dt2.GetSecond());
1247     CPPUNIT_ASSERT_EQUAL(0, (int)dt2.GetMillisecond());
1248 #endif // CHANGE_SYSTEM_DATE
1249 }
1250
1251 void DateTimeTestCase::TestDateOnly()
1252 {
1253     wxDateTime dt(19, wxDateTime::Jan, 2007, 15, 01, 00);
1254
1255     static const wxDateTime::wxDateTime_t DATE_ZERO = 0;
1256     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetHour() );
1257     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetMinute() );
1258     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetSecond() );
1259     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetMillisecond() );
1260
1261     dt.ResetTime();
1262     CPPUNIT_ASSERT_EQUAL( wxDateTime(19, wxDateTime::Jan, 2007), dt );
1263
1264     CPPUNIT_ASSERT_EQUAL( wxDateTime::Today(), wxDateTime::Now().GetDateOnly() );
1265 }
1266
1267 #endif // wxUSE_DATETIME