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 #if wxUSE_DATETIME
  21
  22 #ifndef WX_PRECOMP
  23     #include "wx/time.h"    // wxGetTimeZone()
  24 #endif // WX_PRECOMP
  25
  26 #include "wx/wxcrt.h"       // for wxStrstr()
  27
  28 #include "testdate.h"
  29
  30 // to test Today() meaningfully we must be able to change the system date which
  31 // is not usually the case, but if we're under Win32 we can try it -- define
  32 // the macro below to do it
  33 //#define CHANGE_SYSTEM_DATE
  34
  35 #ifndef __WINDOWS__
  36     #undef CHANGE_SYSTEM_DATE
  37 #endif
  38
  39 #ifdef CHANGE_SYSTEM_DATE
  40
  41 class DateChanger
  42 {
  43 public:
  44     DateChanger(int year, int month, int day, int hour, int min, int sec)
  45     {
  46         SYSTEMTIME st;
  47         st.wDay = day;
  48         st.wMonth = month;
  49         st.wYear = year;
  50         st.wHour = hour;
  51         st.wMinute = min;
  52         st.wSecond = sec;
  53         st.wMilliseconds = 0;
  54
  55         ::GetSystemTime(&m_savedTime);
  56         ::GetTimeZoneInformation(&m_tzi);
  57
  58         m_changed = ::SetSystemTime(&st) != 0;
  59     }
  60
  61     ~DateChanger()
  62     {
  63         if ( m_changed )
  64         {
  65             ::SetSystemTime(&m_savedTime);
  66             ::SetTimeZoneInformation(&m_tzi);
  67         }
  68     }
  69
  70 private:
  71     SYSTEMTIME m_savedTime;
  72     TIME_ZONE_INFORMATION m_tzi;
  73     bool m_changed;
  74 };
  75
  76 #endif // CHANGE_SYSTEM_DATE
  77
  78 // helper function translating week day/month names from English to the current
  79 // locale
  80 static wxString TranslateDate(const wxString& str)
  81 {
  82     // small optimization: if there are no alphabetic characters in the string,
  83     // there is nothing to translate
  84     wxString::const_iterator i, end = str.end();
  85     for ( i = str.begin(); i != end; ++i )
  86     {
  87         if ( isalpha(*i) )
  88             break;
  89     }
  90
  91     if ( i == end )
  92         return str;
  93
  94     wxString trans(str);
  95
  96     for ( wxDateTime::WeekDay wd = wxDateTime::Sun;
  97           wd < wxDateTime::Inv_WeekDay;
  98           wxNextWDay(wd) )
  99     {
 100         trans.Replace
 101               (
 102                 wxDateTime::GetEnglishWeekDayName(wd, wxDateTime::Name_Abbr),
 103                 wxDateTime::GetWeekDayName(wd, wxDateTime::Name_Abbr)
 104               );
 105     }
 106
 107     for ( wxDateTime::Month mon = wxDateTime::Jan;
 108           mon < wxDateTime::Inv_Month;
 109           wxNextMonth(mon) )
 110     {
 111         trans.Replace
 112               (
 113                 wxDateTime::GetEnglishMonthName(mon, wxDateTime::Name_Abbr),
 114                 wxDateTime::GetMonthName(mon, wxDateTime::Name_Abbr)
 115               );
 116     }
 117
 118     return trans;
 119 }
 120
 121 // ----------------------------------------------------------------------------
 122 // broken down date representation used for testing
 123 // ----------------------------------------------------------------------------
 124
 125 struct Date
 126 {
 127     wxDateTime::wxDateTime_t day;
 128     wxDateTime::Month month;
 129     int year;
 130     wxDateTime::wxDateTime_t hour, min, sec;
 131     double jdn;
 132     wxDateTime::WeekDay wday;
 133     time_t gmticks;
 134
 135     void Init(const wxDateTime::Tm& tm)
 136     {
 137         day = tm.mday;
 138         month = tm.mon;
 139         year = tm.year;
 140         hour = tm.hour;
 141         min = tm.min;
 142         sec = tm.sec;
 143         jdn = 0.0;
 144         gmticks = -1;
 145     }
 146
 147     wxDateTime DT() const
 148         { return wxDateTime(day, month, year, hour, min, sec); }
 149
 150     bool SameDay(const wxDateTime::Tm& tm) const
 151     {
 152         return day == tm.mday && month == tm.mon && year == tm.year;
 153     }
 154
 155     wxString Format() const
 156     {
 157         wxString s;
 158         s.Printf(wxT("%02d:%02d:%02d %10s %02d, %4d%s"),
 159                  hour, min, sec,
 160                  wxDateTime::GetMonthName(month).c_str(),
 161                  day,
 162                  abs(wxDateTime::ConvertYearToBC(year)),
 163                  year > 0 ? wxT("AD") : wxT("BC"));
 164         return s;
 165     }
 166
 167     wxString FormatDate() const
 168     {
 169         wxString s;
 170         s.Printf(wxT("%02d-%s-%4d%s"),
 171                  day,
 172                  wxDateTime::GetMonthName(month, wxDateTime::Name_Abbr).c_str(),
 173                  abs(wxDateTime::ConvertYearToBC(year)),
 174                  year > 0 ? wxT("AD") : wxT("BC"));
 175         return s;
 176     }
 177 };
 178
 179 // ----------------------------------------------------------------------------
 180 // test data
 181 // ----------------------------------------------------------------------------
 182
 183 static const Date testDates[] =
 184 {
 185     {  1, wxDateTime::Jan,  1970, 00, 00, 00, 2440587.5, wxDateTime::Thu,         0 },
 186     {  7, wxDateTime::Feb,  2036, 00, 00, 00, 2464730.5, wxDateTime::Thu,        -1 },
 187     {  8, wxDateTime::Feb,  2036, 00, 00, 00, 2464731.5, wxDateTime::Fri,        -1 },
 188     {  1, wxDateTime::Jan,  2037, 00, 00, 00, 2465059.5, wxDateTime::Thu,        -1 },
 189     {  1, wxDateTime::Jan,  2038, 00, 00, 00, 2465424.5, wxDateTime::Fri,        -1 },
 190     { 21, wxDateTime::Jan,  2222, 00, 00, 00, 2532648.5, wxDateTime::Mon,        -1 },
 191     { 29, wxDateTime::May,  1976, 12, 00, 00, 2442928.0, wxDateTime::Sat, 202219200 },
 192     { 29, wxDateTime::Feb,  1976, 00, 00, 00, 2442837.5, wxDateTime::Sun, 194400000 },
 193     {  1, wxDateTime::Jan,  1900, 12, 00, 00, 2415021.0, wxDateTime::Mon,        -1 },
 194     {  1, wxDateTime::Jan,  1900, 00, 00, 00, 2415020.5, wxDateTime::Mon,        -1 },
 195     { 15, wxDateTime::Oct,  1582, 00, 00, 00, 2299160.5, wxDateTime::Fri,        -1 },
 196     {  4, wxDateTime::Oct,  1582, 00, 00, 00, 2299149.5, wxDateTime::Mon,        -1 },
 197     {  1, wxDateTime::Mar,     1, 00, 00, 00, 1721484.5, wxDateTime::Thu,        -1 },
 198     {  1, wxDateTime::Jan,     1, 00, 00, 00, 1721425.5, wxDateTime::Mon,        -1 },
 199     { 31, wxDateTime::Dec,     0, 00, 00, 00, 1721424.5, wxDateTime::Sun,        -1 },
 200     {  1, wxDateTime::Jan,     0, 00, 00, 00, 1721059.5, wxDateTime::Sat,        -1 },
 201     { 12, wxDateTime::Aug, -1234, 00, 00, 00, 1270573.5, wxDateTime::Fri,        -1 },
 202     { 12, wxDateTime::Aug, -4000, 00, 00, 00,  260313.5, wxDateTime::Sat,        -1 },
 203     { 24, wxDateTime::Nov, -4713, 00, 00, 00,      -0.5, wxDateTime::Mon,        -1 },
 204 };
 205
 206
 207 // ----------------------------------------------------------------------------
 208 // test class
 209 // ----------------------------------------------------------------------------
 210
 211 class DateTimeTestCase : public CppUnit::TestCase
 212 {
 213 public:
 214     DateTimeTestCase() { }
 215
 216 private:
 217     CPPUNIT_TEST_SUITE( DateTimeTestCase );
 218         CPPUNIT_TEST( TestLeapYears );
 219         CPPUNIT_TEST( TestTimeSet );
 220         CPPUNIT_TEST( TestTimeJDN );
 221         CPPUNIT_TEST( TestTimeWNumber );
 222         CPPUNIT_TEST( TestTimeWDays );
 223         CPPUNIT_TEST( TestTimeDST );
 224         CPPUNIT_TEST( TestTimeFormat );
 225         CPPUNIT_TEST( TestTimeSpanFormat );
 226         CPPUNIT_TEST( TestTimeTicks );
 227         CPPUNIT_TEST( TestParceRFC822 );
 228         CPPUNIT_TEST( TestDateParse );
 229         CPPUNIT_TEST( TestDateParseISO );
 230         CPPUNIT_TEST( TestDateTimeParse );
 231         CPPUNIT_TEST( TestTimeArithmetics );
 232         CPPUNIT_TEST( TestDSTBug );
 233         CPPUNIT_TEST( TestDateOnly );
 234     CPPUNIT_TEST_SUITE_END();
 235
 236     void TestLeapYears();
 237     void TestTimeSet();
 238     void TestTimeJDN();
 239     void TestTimeWNumber();
 240     void TestTimeWDays();
 241     void TestTimeDST();
 242     void TestTimeFormat();
 243     void TestTimeSpanFormat();
 244     void TestTimeTicks();
 245     void TestParceRFC822();
 246     void TestDateParse();
 247     void TestDateParseISO();
 248     void TestDateTimeParse();
 249     void TestTimeArithmetics();
 250     void TestDSTBug();
 251     void TestDateOnly();
 252
 253     DECLARE_NO_COPY_CLASS(DateTimeTestCase)
 254 };
 255
 256 // register in the unnamed registry so that these tests are run by default
 257 CPPUNIT_TEST_SUITE_REGISTRATION( DateTimeTestCase );
 258
 259 // also include in its own registry so that these tests can be run alone
 260 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( DateTimeTestCase, "DateTimeTestCase" );
 261
 262 // ============================================================================
 263 // implementation
 264 // ============================================================================
 265
 266 // test leap years detection
 267 void DateTimeTestCase::TestLeapYears()
 268 {
 269     static const struct LeapYearTestData
 270     {
 271         int year;
 272         bool isLeap;
 273     } years[] =
 274     {
 275         { 1900, false },
 276         { 1990, false },
 277         { 1976, true },
 278         { 2000, true },
 279         { 2030, false },
 280         { 1984, true },
 281         { 2100, false },
 282         { 2400, true },
 283     };
 284
 285     for ( size_t n = 0; n < WXSIZEOF(years); n++ )
 286     {
 287         const LeapYearTestData& y = years[n];
 288
 289         CPPUNIT_ASSERT_EQUAL( y.isLeap, wxDateTime::IsLeapYear(y.year) );
 290     }
 291 }
 292
 293 // test constructing wxDateTime objects
 294 void DateTimeTestCase::TestTimeSet()
 295 {
 296     for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
 297     {
 298         const Date& d1 = testDates[n];
 299         wxDateTime dt = d1.DT();
 300
 301         Date d2;
 302         d2.Init(dt.GetTm());
 303
 304         wxString s1 = d1.Format(),
 305                  s2 = d2.Format();
 306
 307         CPPUNIT_ASSERT_EQUAL( s1, s2 );
 308     }
 309 }
 310
 311 // test conversions to JDN &c
 312 void DateTimeTestCase::TestTimeJDN()
 313 {
 314     for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
 315     {
 316         const Date& d = testDates[n];
 317         wxDateTime dt(d.day, d.month, d.year, d.hour, d.min, d.sec);
 318
 319         // JDNs must be computed for UTC times
 320         double jdn = dt.FromUTC().GetJulianDayNumber();
 321
 322         CPPUNIT_ASSERT_EQUAL( d.jdn, jdn );
 323
 324         dt.Set(jdn);
 325         CPPUNIT_ASSERT_EQUAL( jdn, dt.GetJulianDayNumber() );
 326     }
 327 }
 328
 329 // test week days computation
 330 void DateTimeTestCase::TestTimeWDays()
 331 {
 332     // test GetWeekDay()
 333     size_t n;
 334     for ( 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         wxDateTime::WeekDay wday = dt.GetWeekDay();
 340         CPPUNIT_ASSERT_EQUAL( d.wday, wday );
 341     }
 342
 343     // test SetToWeekDay()
 344     struct WeekDateTestData
 345     {
 346         Date date;                  // the real date (precomputed)
 347         int nWeek;                  // its week index in the month
 348         wxDateTime::WeekDay wday;   // the weekday
 349         wxDateTime::Month month;    // the month
 350         int year;                   // and the year
 351
 352         wxString Format() const
 353         {
 354             wxString s, which;
 355             switch ( nWeek < -1 ? -nWeek : nWeek )
 356             {
 357                 case 1: which = wxT("first"); break;
 358                 case 2: which = wxT("second"); break;
 359                 case 3: which = wxT("third"); break;
 360                 case 4: which = wxT("fourth"); break;
 361                 case 5: which = wxT("fifth"); break;
 362
 363                 case -1: which = wxT("last"); break;
 364             }
 365
 366             if ( nWeek < -1 )
 367             {
 368                 which += wxT(" from end");
 369             }
 370
 371             s.Printf(wxT("The %s %s of %s in %d"),
 372                      which.c_str(),
 373                      wxDateTime::GetWeekDayName(wday).c_str(),
 374                      wxDateTime::GetMonthName(month).c_str(),
 375                      year);
 376
 377             return s;
 378         }
 379     };
 380
 381     // the array data was generated by the following python program
 382     /*
 383 from DateTime import *
 384 from whrandom import *
 385 from string import *
 386
 387 monthNames = [ 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' ]
 388 wdayNames = [ 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun' ]
 389
 390 week = DateTimeDelta(7)
 391
 392 for n in range(20):
 393     year = randint(1900, 2100)
 394     month = randint(1, 12)
 395     day = randint(1, 28)
 396     dt = DateTime(year, month, day)
 397     wday = dt.day_of_week
 398
 399     countFromEnd = choice([-1, 1])
 400     weekNum = 0;
 401
 402     while dt.month is month:
 403         dt = dt - countFromEnd * week
 404         weekNum = weekNum + countFromEnd
 405
 406     data = { 'day': rjust(`day`, 2), 'month': monthNames[month - 1], 'year': year, 'weekNum': rjust(`weekNum`, 2), 'wday': wdayNames[wday] }
 407
 408     print "{ { %(day)s, wxDateTime::%(month)s, %(year)d }, %(weekNum)d, "\
 409           "wxDateTime::%(wday)s, wxDateTime::%(month)s, %(year)d }," % data
 410     */
 411
 412     static const WeekDateTestData weekDatesTestData[] =
 413     {
 414         { { 20, wxDateTime::Mar, 2045, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  3, wxDateTime::Mon, wxDateTime::Mar, 2045 },
 415         { {  5, wxDateTime::Jun, 1985, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -4, wxDateTime::Wed, wxDateTime::Jun, 1985 },
 416         { { 12, wxDateTime::Nov, 1961, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -3, wxDateTime::Sun, wxDateTime::Nov, 1961 },
 417         { { 27, wxDateTime::Feb, 2093, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -1, wxDateTime::Fri, wxDateTime::Feb, 2093 },
 418         { {  4, wxDateTime::Jul, 2070, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -4, wxDateTime::Fri, wxDateTime::Jul, 2070 },
 419         { {  2, wxDateTime::Apr, 1906, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -5, wxDateTime::Mon, wxDateTime::Apr, 1906 },
 420         { { 19, wxDateTime::Jul, 2023, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -2, wxDateTime::Wed, wxDateTime::Jul, 2023 },
 421         { {  5, wxDateTime::May, 1958, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -4, wxDateTime::Mon, wxDateTime::May, 1958 },
 422         { { 11, wxDateTime::Aug, 1900, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  2, wxDateTime::Sat, wxDateTime::Aug, 1900 },
 423         { { 14, wxDateTime::Feb, 1945, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  2, wxDateTime::Wed, wxDateTime::Feb, 1945 },
 424         { { 25, wxDateTime::Jul, 1967, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -1, wxDateTime::Tue, wxDateTime::Jul, 1967 },
 425         { {  9, wxDateTime::May, 1916, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -4, wxDateTime::Tue, wxDateTime::May, 1916 },
 426         { { 20, wxDateTime::Jun, 1927, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  3, wxDateTime::Mon, wxDateTime::Jun, 1927 },
 427         { {  2, wxDateTime::Aug, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, wxDateTime::Wed, wxDateTime::Aug, 2000 },
 428         { { 20, wxDateTime::Apr, 2044, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  3, wxDateTime::Wed, wxDateTime::Apr, 2044 },
 429         { { 20, wxDateTime::Feb, 1932, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -2, wxDateTime::Sat, wxDateTime::Feb, 1932 },
 430         { { 25, wxDateTime::Jul, 2069, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  4, wxDateTime::Thu, wxDateTime::Jul, 2069 },
 431         { {  3, wxDateTime::Apr, 1925, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, wxDateTime::Fri, wxDateTime::Apr, 1925 },
 432         { { 21, wxDateTime::Mar, 2093, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  3, wxDateTime::Sat, wxDateTime::Mar, 2093 },
 433         { {  3, wxDateTime::Dec, 2074, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -5, wxDateTime::Mon, wxDateTime::Dec, 2074 }
 434     };
 435
 436     wxDateTime dt;
 437     for ( n = 0; n < WXSIZEOF(weekDatesTestData); n++ )
 438     {
 439         const WeekDateTestData& wd = weekDatesTestData[n];
 440
 441         dt.SetToWeekDay(wd.wday, wd.nWeek, wd.month, wd.year);
 442
 443         const Date& d = wd.date;
 444         CPPUNIT_ASSERT( d.SameDay(dt.GetTm()) );
 445     }
 446 }
 447
 448 // test the computation of (ISO) week numbers
 449 void DateTimeTestCase::TestTimeWNumber()
 450 {
 451     struct WeekNumberTestData
 452     {
 453         Date date;                          // the date
 454         wxDateTime::wxDateTime_t week;      // the week number in the year
 455         wxDateTime::wxDateTime_t wmon;      // the week number in the month
 456         wxDateTime::wxDateTime_t wmon2;     // same but week starts with Sun
 457         wxDateTime::wxDateTime_t dnum;      // day number in the year
 458     };
 459
 460     // data generated with the following python script:
 461     /*
 462 from DateTime import *
 463 from whrandom import *
 464 from string import *
 465
 466 monthNames = [ 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' ]
 467 wdayNames = [ 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun' ]
 468
 469 def GetMonthWeek(dt):
 470     weekNumMonth = dt.iso_week[1] - DateTime(dt.year, dt.month, 1).iso_week[1] + 1
 471     if weekNumMonth < 0:
 472         weekNumMonth = weekNumMonth + 53
 473     return weekNumMonth
 474
 475 def GetLastSundayBefore(dt):
 476     if dt.iso_week[2] == 7:
 477         return dt
 478     else:
 479         return dt - DateTimeDelta(dt.iso_week[2])
 480
 481 for n in range(20):
 482     year = randint(1900, 2100)
 483     month = randint(1, 12)
 484     day = randint(1, 28)
 485     dt = DateTime(year, month, day)
 486     dayNum = dt.day_of_year
 487     weekNum = dt.iso_week[1]
 488     weekNumMonth = GetMonthWeek(dt)
 489
 490     weekNumMonth2 = 0
 491     dtSunday = GetLastSundayBefore(dt)
 492
 493     while dtSunday >= GetLastSundayBefore(DateTime(dt.year, dt.month, 1)):
 494         weekNumMonth2 = weekNumMonth2 + 1
 495         dtSunday = dtSunday - DateTimeDelta(7)
 496
 497     data = { 'day': rjust(`day`, 2), \
 498              'month': monthNames[month - 1], \
 499              'year': year, \
 500              'weekNum': rjust(`weekNum`, 2), \
 501              'weekNumMonth': weekNumMonth, \
 502              'weekNumMonth2': weekNumMonth2, \
 503              'dayNum': rjust(`dayNum`, 3) }
 504
 505     print "        { { %(day)s, "\
 506           "wxDateTime::%(month)s, "\
 507           "%(year)d }, "\
 508           "%(weekNum)s, "\
 509           "%(weekNumMonth)s, "\
 510           "%(weekNumMonth2)s, "\
 511           "%(dayNum)s }," % data
 512
 513     */
 514     static const WeekNumberTestData weekNumberTestDates[] =
 515     {
 516         { { 27, wxDateTime::Dec, 1966, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 52, 5, 5, 361 },
 517         { { 22, wxDateTime::Jul, 1926, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 29, 4, 4, 203 },
 518         { { 22, wxDateTime::Oct, 2076, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 43, 4, 4, 296 },
 519         { {  1, wxDateTime::Jul, 1967, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 26, 1, 1, 182 },
 520         { {  8, wxDateTime::Nov, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 46, 2, 2, 313 },
 521         { { 21, wxDateTime::Mar, 1920, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 12, 3, 4,  81 },
 522         { {  7, wxDateTime::Jan, 1965, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 2, 2,   7 },
 523         { { 19, wxDateTime::Oct, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 42, 4, 4, 292 },
 524         { { 13, wxDateTime::Aug, 1955, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 32, 2, 2, 225 },
 525         { { 18, wxDateTime::Jul, 2087, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 29, 3, 3, 199 },
 526         { {  2, wxDateTime::Sep, 2028, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 35, 1, 1, 246 },
 527         { { 28, wxDateTime::Jul, 1945, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 30, 5, 4, 209 },
 528         { { 15, wxDateTime::Jun, 1901, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 24, 3, 3, 166 },
 529         { { 10, wxDateTime::Oct, 1939, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 41, 3, 2, 283 },
 530         { {  3, wxDateTime::Dec, 1965, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 48, 1, 1, 337 },
 531         { { 23, wxDateTime::Feb, 1940, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  8, 4, 4,  54 },
 532         { {  2, wxDateTime::Jan, 1987, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 1, 1,   2 },
 533         { { 11, wxDateTime::Aug, 2079, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 32, 2, 2, 223 },
 534         { {  2, wxDateTime::Feb, 2063, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  5, 1, 1,  33 },
 535         { { 16, wxDateTime::Oct, 1942, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 42, 3, 3, 289 },
 536         { { 30, wxDateTime::Dec, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 5, 5, 364 },
 537         { {  2, wxDateTime::Jan, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 1, 1,   2 },
 538         { {  5, wxDateTime::Jan, 2010, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 2, 2,   5 },
 539         { {  3, wxDateTime::Jan, 2011, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 2, 2,   3 },
 540         { { 31, wxDateTime::Dec, 2009, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 53, 5, 5, 365 },
 541         { { 31, wxDateTime::Dec, 2012, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 6, 6, 366 },
 542         { { 29, wxDateTime::Dec, 2013, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 52, 5, 5, 363 },
 543         { { 30, wxDateTime::Dec, 2013, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 6, 5, 364 },
 544         { { 31, wxDateTime::Dec, 2013, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 6, 5, 365 },
 545     };
 546
 547     for ( size_t n = 0; n < WXSIZEOF(weekNumberTestDates); n++ )
 548     {
 549         const WeekNumberTestData& wn = weekNumberTestDates[n];
 550         const Date& d = wn.date;
 551
 552         wxDateTime dt = d.DT();
 553
 554         wxDateTime::wxDateTime_t
 555             week = dt.GetWeekOfYear(wxDateTime::Monday_First),
 556             wmon = dt.GetWeekOfMonth(wxDateTime::Monday_First),
 557             wmon2 = dt.GetWeekOfMonth(wxDateTime::Sunday_First),
 558             dnum = dt.GetDayOfYear();
 559
 560         WX_ASSERT_EQUAL_MESSAGE( ("day of year for %s", d.Format()),
 561                                  wn.dnum, dnum );
 562         WX_ASSERT_EQUAL_MESSAGE( ("week of month (Monday) for %s", d.Format()),
 563                                  wn.wmon, wmon );
 564         WX_ASSERT_EQUAL_MESSAGE( ("week of month (Sunday) for %s", d.Format()),
 565                                  wn.wmon2, wmon2 );
 566         WX_ASSERT_EQUAL_MESSAGE( ("week of year for %s", d.Format()),
 567                                  wn.week, week );
 568
 569         int year = d.year;
 570         if ( week == 1 && d.month != wxDateTime::Jan )
 571         {
 572             // this means we're in the first week of the next year
 573             year++;
 574         }
 575
 576         wxDateTime
 577             dt2 = wxDateTime::SetToWeekOfYear(year, week, dt.GetWeekDay());
 578         CPPUNIT_ASSERT_EQUAL( dt, dt2 );
 579     }
 580 }
 581
 582 // test DST applicability
 583 void DateTimeTestCase::TestTimeDST()
 584 {
 585     // taken from http://www.energy.ca.gov/daylightsaving.html
 586     static const Date datesDST[2][2009 - 1990 + 1] =
 587     {
 588         {
 589             { 1, wxDateTime::Apr, 1990, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 590             { 7, wxDateTime::Apr, 1991, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 591             { 5, wxDateTime::Apr, 1992, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 592             { 4, wxDateTime::Apr, 1993, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 593             { 3, wxDateTime::Apr, 1994, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 594             { 2, wxDateTime::Apr, 1995, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 595             { 7, wxDateTime::Apr, 1996, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 596             { 6, wxDateTime::Apr, 1997, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 597             { 5, wxDateTime::Apr, 1998, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 598             { 4, wxDateTime::Apr, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 599             { 2, wxDateTime::Apr, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 600             { 1, wxDateTime::Apr, 2001, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 601             { 7, wxDateTime::Apr, 2002, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 602             { 6, wxDateTime::Apr, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 603             { 4, wxDateTime::Apr, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 604             { 3, wxDateTime::Apr, 2005, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 605             { 2, wxDateTime::Apr, 2006, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 606             {11, wxDateTime::Mar, 2007, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 607             { 9, wxDateTime::Mar, 2008, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 608             { 8, wxDateTime::Mar, 2009, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 609         },
 610         {
 611             { 28, wxDateTime::Oct, 1990, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 612             { 27, wxDateTime::Oct, 1991, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 613             { 25, wxDateTime::Oct, 1992, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 614             { 31, wxDateTime::Oct, 1993, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 615             { 30, wxDateTime::Oct, 1994, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 616             { 29, wxDateTime::Oct, 1995, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 617             { 27, wxDateTime::Oct, 1996, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 618             { 26, wxDateTime::Oct, 1997, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 619             { 25, wxDateTime::Oct, 1998, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 620             { 31, wxDateTime::Oct, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 621             { 29, wxDateTime::Oct, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 622             { 28, wxDateTime::Oct, 2001, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 623             { 27, wxDateTime::Oct, 2002, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 624             { 26, wxDateTime::Oct, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 625             { 31, wxDateTime::Oct, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 626             { 30, wxDateTime::Oct, 2005, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 627             { 29, wxDateTime::Oct, 2006, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 628             {  4, wxDateTime::Nov, 2007, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 629             {  2, wxDateTime::Nov, 2008, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 630             {  1, wxDateTime::Nov, 2009, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 631
 632         }
 633     };
 634
 635     for ( size_t n = 0; n < WXSIZEOF(datesDST[0]); n++ )
 636     {
 637         const int year = 1990 + n;
 638         wxDateTime dtBegin = wxDateTime::GetBeginDST(year, wxDateTime::USA),
 639                    dtEnd = wxDateTime::GetEndDST(year, wxDateTime::USA);
 640
 641         const Date& dBegin = datesDST[0][n];
 642         const Date& dEnd = datesDST[1][n];
 643
 644         CPPUNIT_ASSERT_EQUAL( dBegin.DT().FormatDate(), dtBegin.FormatDate() );
 645         CPPUNIT_ASSERT_EQUAL( dEnd.DT().FormatDate(), dtEnd.FormatDate() );
 646     }
 647 }
 648
 649 // test wxDateTime -> text conversion
 650 void DateTimeTestCase::TestTimeFormat()
 651 {
 652     // some information may be lost during conversion, so store what kind
 653     // of info should we recover after a round trip
 654     enum CompareKind
 655     {
 656         CompareNone,        // don't try comparing
 657         CompareBoth,        // dates and times should be identical
 658         CompareYear,        // don't compare centuries (fails for 2 digit years)
 659         CompareDate,        // dates only
 660         CompareTime         // time only
 661     };
 662
 663     static const struct
 664     {
 665         CompareKind compareKind;
 666         const char *format;
 667     } formatTestFormats[] =
 668     {
 669        { CompareYear, "---> %c" }, // %c could use 2 digit years
 670        { CompareDate, "Date is %A, %d of %B, in year %Y" },
 671        { CompareYear, "Date is %x, time is %X" }, // %x could use 2 digits
 672        { CompareTime, "Time is %H:%M:%S or %I:%M:%S %p" },
 673        { CompareNone, "The day of year: %j, the week of year: %W" },
 674        { CompareDate, "ISO date without separators: %Y%m%d" },
 675        { CompareBoth, "RFC 2822 string: %Y-%m-%d %H:%M:%S.%l %z" },
 676
 677     };
 678
 679     const long timeZonesOffsets[] =
 680     {
 681         wxDateTime::TimeZone(wxDateTime::Local).GetOffset(),
 682
 683         // Fictitious TimeZone offsets to ensure time zone formating and
 684         // interpretation works
 685         -(3600 + 2*60),
 686         3*3600 + 30*60
 687     };
 688
 689     static const Date formatTestDates[] =
 690     {
 691         { 29, wxDateTime::May, 1976, 18, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 692         { 31, wxDateTime::Dec, 1999, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 693         {  6, wxDateTime::Feb, 1937, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 694         {  6, wxDateTime::Feb, 1856, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 695         {  6, wxDateTime::Feb, 1857, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 696         { 29, wxDateTime::May, 2076, 18, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 697
 698         // FIXME: the test with 02:15:25 time doesn't pass because of DST
 699         //        computation problems, we get back 03:15:25
 700         { 29, wxDateTime::Feb, 2400, 04, 15, 25, 0.0, wxDateTime::Inv_WeekDay },
 701 #if 0
 702         // Need to add support for BCE dates.
 703         { 01, wxDateTime::Jan,  -52, 03, 16, 47, 0.0, wxDateTime::Inv_WeekDay },
 704 #endif
 705     };
 706
 707     for ( unsigned idxtz = 0; idxtz < WXSIZEOF(timeZonesOffsets); ++idxtz )
 708     {
 709         wxDateTime::TimeZone tz(timeZonesOffsets[idxtz]);
 710         const bool isLocalTz = tz.GetOffset() == -wxGetTimeZone();
 711
 712         for ( size_t d = 0; d < WXSIZEOF(formatTestDates); d++ )
 713         {
 714             wxDateTime dt = formatTestDates[d].DT();
 715             for ( unsigned n = 0; n < WXSIZEOF(formatTestFormats); n++ )
 716             {
 717                 const char *fmt = formatTestFormats[n].format;
 718
 719                 // skip the check with %p for those locales which have empty AM/PM strings:
 720                 // for those locales it's impossible to pass the test with %p...
 721                 wxString am, pm;
 722                 wxDateTime::GetAmPmStrings(&am, &pm);
 723                 if (am.empty() && pm.empty() && wxStrstr(fmt, "%p") != NULL)
 724                     continue;
 725
 726                 // what can we recover?
 727                 CompareKind kind = formatTestFormats[n].compareKind;
 728
 729                 // When using a different time zone we must perform a time zone
 730                 // conversion below which doesn't always work correctly, check
 731                 // for the cases when it doesn't.
 732                 if ( !isLocalTz )
 733                 {
 734                     // DST computation doesn't work correctly for dates above
 735                     // 2038 currently on the systems with 32 bit time_t.
 736                     if ( dt.GetYear() >= 2038 )
 737                         continue;
 738
 739                     // We can't compare just dates nor just times when doing TZ
 740                     // conversion as both are affected by the DST: for the
 741                     // dates, the DST can switch midnight to 23:00 of the
 742                     // previous day while for the times DST can be different
 743                     // for the original date and today.
 744                     if ( kind == CompareDate || kind == CompareTime )
 745                         continue;
 746                 }
 747
 748                 // do convert date to string
 749                 wxString s = dt.Format(fmt, tz);
 750
 751                 // convert back
 752                 wxDateTime dt2;
 753                 const char *result = dt2.ParseFormat(s, fmt);
 754                 if ( !result )
 755                 {
 756                     // conversion failed - should it have?
 757                     WX_ASSERT_MESSAGE(
 758                         ("Test #%u failed: failed to parse \"%s\"", n, s),
 759                         kind == CompareNone
 760                     );
 761                 }
 762                 else // conversion succeeded
 763                 {
 764                     // currently ParseFormat() doesn't support "%Z" and so is
 765                     // incapable of parsing time zone part used at the end of date
 766                     // representations in many (but not "C") locales, compensate
 767                     // for it ourselves by simply consuming and ignoring it
 768                     while ( *result && (*result >= 'A' && *result <= 'Z') )
 769                         result++;
 770
 771                     WX_ASSERT_MESSAGE(
 772                         ("Test #%u failed: \"%s\" was left unparsed in \"%s\"",
 773                          n, result, s),
 774                         !*result
 775                     );
 776
 777                     // Without "%z" we can't recover the time zone used in the
 778                     // call to Format() so we need to call MakeFromTimezone()
 779                     // explicitly.
 780                     if ( !strstr(fmt, "%z") && !isLocalTz )
 781                         dt2.MakeFromTimezone(tz);
 782
 783                     switch ( kind )
 784                     {
 785                         case CompareYear:
 786                             if ( dt2.GetCentury() != dt.GetCentury() )
 787                             {
 788                                 CPPUNIT_ASSERT_EQUAL(dt.GetYear() % 100,
 789                                                      dt2.GetYear() % 100);
 790
 791                                 dt2.SetYear(dt.GetYear());
 792                             }
 793                             // fall through and compare everything
 794
 795                         case CompareBoth:
 796                             CPPUNIT_ASSERT_EQUAL( dt, dt2 );
 797                             break;
 798
 799                         case CompareDate:
 800                             CPPUNIT_ASSERT( dt.IsSameDate(dt2) );
 801                             break;
 802
 803                         case CompareTime:
 804                             CPPUNIT_ASSERT( dt.IsSameTime(dt2) );
 805                             break;
 806
 807                         case CompareNone:
 808                             wxFAIL_MSG( wxT("unexpected") );
 809                             break;
 810                     }
 811                 }
 812             }
 813         }
 814     }
 815
 816     wxDateTime dt;
 817
 818 #if 0
 819     // special case which was known to fail
 820     CPPUNIT_ASSERT( dt.ParseFormat("02/06/1856", "%x") );
 821     CPPUNIT_ASSERT_EQUAL( 1856, dt.GetYear() );
 822 #endif
 823
 824     // also test %l separately
 825     CPPUNIT_ASSERT( dt.ParseFormat("12:23:45.678", "%H:%M:%S.%l") );
 826     CPPUNIT_ASSERT_EQUAL( 678, dt.GetMillisecond() );
 827
 828     // test special case of %l matching 0 milliseconds
 829     CPPUNIT_ASSERT( dt.ParseFormat("12:23:45.000", "%H:%M:%S.%l") );
 830     CPPUNIT_ASSERT_EQUAL( 0, dt.GetMillisecond() );
 831
 832     // test partially specified dates too
 833     wxDateTime dtDef(26, wxDateTime::Sep, 2008);
 834     CPPUNIT_ASSERT( dt.ParseFormat("17", "%d") );
 835     CPPUNIT_ASSERT_EQUAL( 17, dt.GetDay() );
 836
 837     // test some degenerate cases
 838     CPPUNIT_ASSERT( !dt.ParseFormat("", "%z") );
 839     CPPUNIT_ASSERT( !dt.ParseFormat("", "%%") );
 840
 841     // test compilation of some calls which should compile (and not result in
 842     // ambiguity because of char*<->wxCStrData<->wxString conversions)
 843     wxString s("foo");
 844     CPPUNIT_ASSERT( !dt.ParseFormat("foo") );
 845     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo")) );
 846     CPPUNIT_ASSERT( !dt.ParseFormat(s) );
 847     dt.ParseFormat(s.c_str()); // Simply test compilation of this one.
 848
 849     CPPUNIT_ASSERT( !dt.ParseFormat("foo", "%c") );
 850     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), "%c") );
 851     CPPUNIT_ASSERT( !dt.ParseFormat(s, "%c") );
 852     dt.ParseFormat(s.c_str(), "%c");
 853
 854     CPPUNIT_ASSERT( !dt.ParseFormat("foo", wxT("%c")) );
 855     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), wxT("%c")) );
 856     CPPUNIT_ASSERT( !dt.ParseFormat(s, "%c") );
 857     dt.ParseFormat(s.c_str(), wxT("%c"));
 858
 859     wxString spec("%c");
 860     CPPUNIT_ASSERT( !dt.ParseFormat("foo", spec) );
 861     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), spec) );
 862     CPPUNIT_ASSERT( !dt.ParseFormat(s, spec) );
 863     dt.ParseFormat(s.c_str(), spec);
 864 }
 865
 866 void DateTimeTestCase::TestTimeSpanFormat()
 867 {
 868     static const struct TimeSpanFormatTestData
 869     {
 870         long h, min, sec, msec;
 871         const char *fmt;
 872         const char *result;
 873     } testSpans[] =
 874     {
 875         {   12, 34, 56, 789, "%H:%M:%S.%l",   "12:34:56.789"          },
 876         {    1,  2,  3,   0, "%H:%M:%S",      "01:02:03"              },
 877         {    1,  2,  3,   0, "%S",            "3723"                  },
 878         {   -1, -2, -3,   0, "%S",            "-3723"                 },
 879         {   -1, -2, -3,   0, "%H:%M:%S",      "-01:02:03"             },
 880         {   26,  0,  0,   0, "%H",            "26"                    },
 881         {   26,  0,  0,   0, "%D, %H",        "1, 02"                 },
 882         {  -26,  0,  0,   0, "%H",            "-26"                   },
 883         {  -26,  0,  0,   0, "%D, %H",        "-1, 02"                },
 884         {  219,  0,  0,   0, "%H",            "219"                   },
 885         {  219,  0,  0,   0, "%D, %H",        "9, 03"                 },
 886         {  219,  0,  0,   0, "%E, %D, %H",    "1, 2, 03"              },
 887         {    0, -1,  0,   0, "%H:%M:%S",      "-00:01:00"             },
 888         {    0,  0, -1,   0, "%H:%M:%S",      "-00:00:01"             },
 889     };
 890
 891     for ( size_t n = 0; n < WXSIZEOF(testSpans); n++ )
 892     {
 893         const TimeSpanFormatTestData& td = testSpans[n];
 894         wxTimeSpan ts(td.h, td.min, td.sec, td.msec);
 895         CPPUNIT_ASSERT_EQUAL( td.result, ts.Format(td.fmt) );
 896     }
 897 }
 898
 899 void DateTimeTestCase::TestTimeTicks()
 900 {
 901     static const wxDateTime::TimeZone TZ_LOCAL(wxDateTime::Local);
 902     static const wxDateTime::TimeZone TZ_TEST(wxDateTime::NZST);
 903
 904     // this offset is needed to make the test work in any time zone when we
 905     // only have expected test results in UTC in testDates
 906     static const long tzOffset = TZ_LOCAL.GetOffset() - TZ_TEST.GetOffset();
 907
 908     for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
 909     {
 910         const Date& d = testDates[n];
 911         if ( d.gmticks == -1 )
 912             continue;
 913
 914         wxDateTime dt = d.DT().MakeTimezone(TZ_TEST, true /* no DST */);
 915
 916         // GetValue() returns internal UTC-based representation, we need to
 917         // convert it to local TZ before comparing
 918         time_t ticks = (dt.GetValue() / 1000).ToLong() + TZ_LOCAL.GetOffset();
 919         if ( dt.IsDST() )
 920             ticks += 3600;
 921         CPPUNIT_ASSERT_EQUAL( d.gmticks, ticks + tzOffset );
 922
 923         dt = d.DT().FromTimezone(wxDateTime::UTC);
 924         ticks = (dt.GetValue() / 1000).ToLong();
 925         CPPUNIT_ASSERT_EQUAL( d.gmticks, ticks );
 926     }
 927 }
 928
 929 // test parsing dates in RFC822 format
 930 void DateTimeTestCase::TestParceRFC822()
 931 {
 932     static const struct ParseTestData
 933     {
 934         const char *rfc822;
 935         Date date;              // NB: this should be in UTC
 936         bool good;
 937     } parseTestDates[] =
 938     {
 939         {
 940             "Sat, 18 Dec 1999 00:46:40 +0100",
 941             { 17, wxDateTime::Dec, 1999, 23, 46, 40 },
 942             true
 943         },
 944         {
 945             "Wed, 1 Dec 1999 05:17:20 +0300",
 946             {  1, wxDateTime::Dec, 1999, 2, 17, 20 },
 947             true
 948         },
 949         {
 950             "Sun, 28 Aug 2005 03:31:30 +0200",
 951             { 28, wxDateTime::Aug, 2005, 1, 31, 30 },
 952             true
 953         },
 954
 955         {
 956             "Sat, 18 Dec 1999 10:48:30 -0500",
 957             { 18, wxDateTime::Dec, 1999, 15, 48, 30 },
 958             true
 959         },
 960
 961         // seconds are optional according to the RFC
 962         {
 963             "Sun, 01 Jun 2008 16:30 +0200",
 964             {  1, wxDateTime::Jun, 2008, 14, 30, 00 },
 965             true
 966         },
 967
 968         // try some bogus ones too
 969         {
 970             "Sun, 01 Jun 2008 16:30: +0200",
 971             { 0 },
 972             false
 973         },
 974     };
 975
 976     for ( unsigned n = 0; n < WXSIZEOF(parseTestDates); n++ )
 977     {
 978         const char * const datestr = parseTestDates[n].rfc822;
 979
 980         wxDateTime dt;
 981         if ( dt.ParseRfc822Date(datestr) )
 982         {
 983             WX_ASSERT_MESSAGE(
 984                 ("Erroneously parsed \"%s\"", datestr),
 985                 parseTestDates[n].good
 986             );
 987
 988             wxDateTime dtReal = parseTestDates[n].date.DT().FromUTC();
 989             CPPUNIT_ASSERT_EQUAL( dtReal, dt );
 990         }
 991         else // failed to parse
 992         {
 993             WX_ASSERT_MESSAGE(
 994                 ("Failed to parse \"%s\"", datestr),
 995                 !parseTestDates[n].good
 996             );
 997         }
 998     }
 999 }
1000
1001 // test parsing dates in free format
1002 void DateTimeTestCase::TestDateParse()
1003 {
1004     static const struct ParseTestData
1005     {
1006         const char *str;
1007         Date date;              // NB: this should be in UTC
1008         bool good;
1009     } parseTestDates[] =
1010     {
1011         { "21 Mar 2006", { 21, wxDateTime::Mar, 2006 }, true },
1012         { "29 Feb 1976", { 29, wxDateTime::Feb, 1976 }, true },
1013         { "Feb 29 1976", { 29, wxDateTime::Feb, 1976 }, true },
1014         { "31/03/06",    { 31, wxDateTime::Mar,    6 }, true },
1015         { "31/03/2006",  { 31, wxDateTime::Mar, 2006 }, true },
1016
1017         // some invalid ones too
1018         { "29 Feb 2006" },
1019         { "31/04/06" },
1020         { "bloordyblop" },
1021         { "2 .  .    " },
1022     };
1023
1024     // special cases
1025     wxDateTime dt;
1026     CPPUNIT_ASSERT( dt.ParseDate(wxT("today")) );
1027     CPPUNIT_ASSERT_EQUAL( wxDateTime::Today(), dt );
1028
1029     for ( size_t n = 0; n < WXSIZEOF(parseTestDates); n++ )
1030     {
1031         const wxString datestr = TranslateDate(parseTestDates[n].str);
1032
1033         const char * const end = dt.ParseDate(datestr);
1034         if ( end && !*end )
1035         {
1036             WX_ASSERT_MESSAGE(
1037                 ("Erroneously parsed \"%s\"", datestr),
1038                 parseTestDates[n].good
1039             );
1040
1041             CPPUNIT_ASSERT_EQUAL( parseTestDates[n].date.DT(), dt );
1042         }
1043         else // failed to parse
1044         {
1045             WX_ASSERT_MESSAGE(
1046                 ("Failed to parse \"%s\"", datestr),
1047                 !parseTestDates[n].good
1048             );
1049         }
1050     }
1051
1052     // Check that incomplete parse works correctly.
1053     const char* p = dt.ParseFormat("2012-03-23 12:34:56", "%Y-%m-%d");
1054     CPPUNIT_ASSERT_EQUAL( " 12:34:56", wxString(p) );
1055 }
1056
1057 void DateTimeTestCase::TestDateParseISO()
1058 {
1059     static const struct
1060     {
1061         const char *str;
1062         Date date;              // NB: this should be in UTC
1063         bool good;
1064     } parseTestDates[] =
1065     {
1066         { "2006-03-21", { 21, wxDateTime::Mar, 2006 }, true },
1067         { "1976-02-29", { 29, wxDateTime::Feb, 1976 }, true },
1068         { "0006-03-31", { 31, wxDateTime::Mar,    6 }, true },
1069
1070         // some invalid ones too
1071         { "2006:03:31" },
1072         { "31/04/06" },
1073         { "bloordyblop" },
1074         { "" },
1075     };
1076
1077     static const struct
1078     {
1079         const char *str;
1080         wxDateTime::wxDateTime_t hour, min, sec;
1081         bool good;
1082     } parseTestTimes[] =
1083     {
1084         { "13:42:17", 13, 42, 17, true },
1085         { "02:17:01",  2, 17,  1, true },
1086
1087         // some invalid ones too
1088         { "66:03:31" },
1089         { "31/04/06" },
1090         { "bloordyblop" },
1091         { "" },
1092     };
1093
1094     for ( size_t n = 0; n < WXSIZEOF(parseTestDates); n++ )
1095     {
1096         wxDateTime dt;
1097         if ( dt.ParseISODate(parseTestDates[n].str) )
1098         {
1099             CPPUNIT_ASSERT( parseTestDates[n].good );
1100
1101             CPPUNIT_ASSERT_EQUAL( parseTestDates[n].date.DT(), dt );
1102
1103             for ( size_t m = 0; m < WXSIZEOF(parseTestTimes); m++ )
1104             {
1105                 wxString dtCombined;
1106                 dtCombined << parseTestDates[n].str
1107                            << 'T'
1108                            << parseTestTimes[m].str;
1109
1110                 if ( dt.ParseISOCombined(dtCombined) )
1111                 {
1112                     CPPUNIT_ASSERT( parseTestTimes[m].good );
1113
1114                     CPPUNIT_ASSERT_EQUAL( parseTestTimes[m].hour, dt.GetHour()) ;
1115                     CPPUNIT_ASSERT_EQUAL( parseTestTimes[m].min, dt.GetMinute()) ;
1116                     CPPUNIT_ASSERT_EQUAL( parseTestTimes[m].sec, dt.GetSecond()) ;
1117                 }
1118                 else // failed to parse combined date/time
1119                 {
1120                     CPPUNIT_ASSERT( !parseTestTimes[m].good );
1121                 }
1122             }
1123         }
1124         else // failed to parse
1125         {
1126             CPPUNIT_ASSERT( !parseTestDates[n].good );
1127         }
1128     }
1129 }
1130
1131 void DateTimeTestCase::TestDateTimeParse()
1132 {
1133     static const struct ParseTestData
1134     {
1135         const char *str;
1136         Date date;              // NB: this should be in UTC
1137         bool good;
1138     } parseTestDates[] =
1139     {
1140         {
1141             "Thu 22 Nov 2007 07:40:00 PM",
1142             { 22, wxDateTime::Nov, 2007, 19, 40,  0 },
1143             true
1144         },
1145
1146         {
1147             "2010-01-04 14:30",
1148             {  4, wxDateTime::Jan, 2010, 14, 30,  0 },
1149             true
1150         },
1151
1152         {
1153             "bloordyblop",
1154             {  1, wxDateTime::Jan, 9999,  0,  0,  0},
1155             false
1156         },
1157
1158         {
1159             "2012-01-01 10:12:05 +0100",
1160             {  1, wxDateTime::Jan, 2012,  10,  12,  5, -1 },
1161             false // ParseDateTime does know yet +0100
1162         },
1163     };
1164
1165     // the test strings here use "PM" which is not available in all locales so
1166     // we need to use "C" locale for them
1167     CLocaleSetter cloc;
1168
1169     wxDateTime dt;
1170     for ( size_t n = 0; n < WXSIZEOF(parseTestDates); n++ )
1171     {
1172         const wxString datestr = TranslateDate(parseTestDates[n].str);
1173
1174         const char * const end = dt.ParseDateTime(datestr);
1175         if ( end && !*end )
1176         {
1177             WX_ASSERT_MESSAGE(
1178                 ("Erroneously parsed \"%s\"", datestr),
1179                 parseTestDates[n].good
1180             );
1181
1182             CPPUNIT_ASSERT_EQUAL( parseTestDates[n].date.DT(), dt );
1183         }
1184         else // failed to parse
1185         {
1186             WX_ASSERT_MESSAGE(
1187                 ("Failed to parse \"%s\"", datestr),
1188                 !parseTestDates[n].good
1189             );
1190
1191             CPPUNIT_ASSERT( !parseTestDates[n].good );
1192         }
1193     }
1194 }
1195
1196 void DateTimeTestCase::TestTimeArithmetics()
1197 {
1198     static const wxDateSpan testArithmData[] =
1199     {
1200         wxDateSpan::Day(),
1201         wxDateSpan::Week(),
1202         wxDateSpan::Month(),
1203         wxDateSpan::Year(),
1204     };
1205
1206     // the test will *not* work with arbitrary date!
1207     wxDateTime dt(2, wxDateTime::Dec, 1999),
1208                dt1,
1209                dt2;
1210
1211     for ( size_t n = 0; n < WXSIZEOF(testArithmData); n++ )
1212     {
1213         const wxDateSpan& span = testArithmData[n];
1214         dt1 = dt + span;
1215         dt2 = dt - span;
1216
1217         CPPUNIT_ASSERT_EQUAL( dt, dt1 - span );
1218         CPPUNIT_ASSERT_EQUAL( dt, dt2 + span );
1219         CPPUNIT_ASSERT_EQUAL( dt1, dt2 + 2*span );
1220         CPPUNIT_ASSERT_EQUAL( span, dt1.DiffAsDateSpan(dt) );
1221     }
1222
1223     // More date span arithmetics tests
1224     wxDateTime dtd1(5, wxDateTime::Jun, 1998);
1225     wxDateTime dtd2(6, wxDateTime::Aug, 1999);
1226
1227     // All parts in dtd2 is after dtd1
1228     CPPUNIT_ASSERT_EQUAL( wxDateSpan(1, 2, 0, 1), dtd2.DiffAsDateSpan(dtd1) );
1229
1230     // Year and month after, day earlier, so no full month
1231     // Jul has 31 days, so it's 31 - 5 + 4 = 30, or 4w 2d
1232     dtd2.Set(4, wxDateTime::Aug, 1999);
1233     CPPUNIT_ASSERT_EQUAL( wxDateSpan(1, 1, 4, 2), dtd2.DiffAsDateSpan(dtd1) );
1234
1235     // Year and day after, month earlier, so no full year, but same day diff as
1236     // first example
1237     dtd2.Set(6, wxDateTime::May, 1999);
1238     CPPUNIT_ASSERT_EQUAL( wxDateSpan(0, 11, 0, 1), dtd2.DiffAsDateSpan(dtd1) );
1239
1240     // Year after, month and day earlier, so no full month and no full year
1241     // April has 30 days, so it's 30 - 5 + 4 = 29, or 4w 1d
1242     dtd2.Set(4, wxDateTime::May, 1999);
1243     CPPUNIT_ASSERT_EQUAL( wxDateSpan(0, 10, 4, 1), dtd2.DiffAsDateSpan(dtd1) );
1244
1245     // And a reverse. Now we should use days in Jun (again 30 => 4w 1d)
1246     CPPUNIT_ASSERT_EQUAL( wxDateSpan(0, -10, -4, -1), dtd1.DiffAsDateSpan(dtd2) );
1247 }
1248
1249 void DateTimeTestCase::TestDSTBug()
1250 {
1251     /////////////////////////
1252     // Test GetEndDST()
1253     wxDateTime dt = wxDateTime::GetEndDST(2004, wxDateTime::France);
1254     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1255     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1256     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1257     CPPUNIT_ASSERT_EQUAL(1, (int)dt.GetHour());
1258     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
1259     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1260     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1261
1262     /////////////////////////
1263     // Test ResetTime()
1264     dt.SetHour(5);
1265     CPPUNIT_ASSERT_EQUAL(5, (int)dt.GetHour());
1266     dt.ResetTime();
1267     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1268     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1269     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1270     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetHour());
1271     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
1272     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1273     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1274
1275     dt.Set(1, 0, 0, 0);
1276     CPPUNIT_ASSERT_EQUAL(1, (int)dt.GetHour());
1277
1278     /////////////////////////
1279     // Test Today()
1280 #ifdef CHANGE_SYSTEM_DATE
1281     {
1282         DateChanger change(2004, 10, 31, 5, 0, 0);
1283         dt = wxDateTime::Today();
1284     }
1285
1286     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1287     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1288     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1289     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetHour());
1290     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
1291     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1292     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1293
1294     /////////////////////////
1295     // Test Set(hour, minute, second, milli)
1296     wxDateTime dt2;
1297     {
1298         DateChanger change(2004, 10, 31, 5, 0, 0);
1299         dt.Set(1, 30, 0, 0);
1300         dt2.Set(5, 30, 0, 0);
1301     }
1302
1303     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1304     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1305     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1306     CPPUNIT_ASSERT_EQUAL(1, (int)dt.GetHour());
1307     CPPUNIT_ASSERT_EQUAL(30, (int)dt.GetMinute());
1308     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1309     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1310
1311     CPPUNIT_ASSERT_EQUAL(31, (int)dt2.GetDay());
1312     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt2.GetMonth());
1313     CPPUNIT_ASSERT_EQUAL(2004, (int)dt2.GetYear());
1314     CPPUNIT_ASSERT_EQUAL(5, (int)dt2.GetHour());
1315     CPPUNIT_ASSERT_EQUAL(30, (int)dt2.GetMinute());
1316     CPPUNIT_ASSERT_EQUAL(0, (int)dt2.GetSecond());
1317     CPPUNIT_ASSERT_EQUAL(0, (int)dt2.GetMillisecond());
1318 #endif // CHANGE_SYSTEM_DATE
1319 }
1320
1321 void DateTimeTestCase::TestDateOnly()
1322 {
1323     wxDateTime dt(19, wxDateTime::Jan, 2007, 15, 01, 00);
1324
1325     static const wxDateTime::wxDateTime_t DATE_ZERO = 0;
1326     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetHour() );
1327     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetMinute() );
1328     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetSecond() );
1329     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetMillisecond() );
1330
1331     dt.ResetTime();
1332     CPPUNIT_ASSERT_EQUAL( wxDateTime(19, wxDateTime::Jan, 2007), dt );
1333
1334     CPPUNIT_ASSERT_EQUAL( wxDateTime::Today(), wxDateTime::Now().GetDateOnly() );
1335 }
1336
1337 #endif // wxUSE_DATETIME