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( TestTimeParse );
 226         CPPUNIT_TEST( TestTimeSpanFormat );
 227         CPPUNIT_TEST( TestTimeTicks );
 228         CPPUNIT_TEST( TestParceRFC822 );
 229         CPPUNIT_TEST( TestDateParse );
 230         CPPUNIT_TEST( TestDateParseISO );
 231         CPPUNIT_TEST( TestDateTimeParse );
 232         CPPUNIT_TEST( TestTimeArithmetics );
 233         CPPUNIT_TEST( TestDSTBug );
 234         CPPUNIT_TEST( TestDateOnly );
 235     CPPUNIT_TEST_SUITE_END();
 236
 237     void TestLeapYears();
 238     void TestTimeSet();
 239     void TestTimeJDN();
 240     void TestTimeWNumber();
 241     void TestTimeWDays();
 242     void TestTimeDST();
 243     void TestTimeFormat();
 244     void TestTimeParse();
 245     void TestTimeSpanFormat();
 246     void TestTimeTicks();
 247     void TestParceRFC822();
 248     void TestDateParse();
 249     void TestDateParseISO();
 250     void TestDateTimeParse();
 251     void TestTimeArithmetics();
 252     void TestDSTBug();
 253     void TestDateOnly();
 254
 255     DECLARE_NO_COPY_CLASS(DateTimeTestCase)
 256 };
 257
 258 // register in the unnamed registry so that these tests are run by default
 259 CPPUNIT_TEST_SUITE_REGISTRATION( DateTimeTestCase );
 260
 261 // also include in its own registry so that these tests can be run alone
 262 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( DateTimeTestCase, "DateTimeTestCase" );
 263
 264 // ============================================================================
 265 // implementation
 266 // ============================================================================
 267
 268 // test leap years detection
 269 void DateTimeTestCase::TestLeapYears()
 270 {
 271     static const struct LeapYearTestData
 272     {
 273         int year;
 274         bool isLeap;
 275     } years[] =
 276     {
 277         { 1900, false },
 278         { 1990, false },
 279         { 1976, true },
 280         { 2000, true },
 281         { 2030, false },
 282         { 1984, true },
 283         { 2100, false },
 284         { 2400, true },
 285     };
 286
 287     for ( size_t n = 0; n < WXSIZEOF(years); n++ )
 288     {
 289         const LeapYearTestData& y = years[n];
 290
 291         CPPUNIT_ASSERT_EQUAL( y.isLeap, wxDateTime::IsLeapYear(y.year) );
 292     }
 293 }
 294
 295 // test constructing wxDateTime objects
 296 void DateTimeTestCase::TestTimeSet()
 297 {
 298     for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
 299     {
 300         const Date& d1 = testDates[n];
 301         wxDateTime dt = d1.DT();
 302
 303         Date d2;
 304         d2.Init(dt.GetTm());
 305
 306         wxString s1 = d1.Format(),
 307                  s2 = d2.Format();
 308
 309         CPPUNIT_ASSERT_EQUAL( s1, s2 );
 310     }
 311 }
 312
 313 // test conversions to JDN &c
 314 void DateTimeTestCase::TestTimeJDN()
 315 {
 316     for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
 317     {
 318         const Date& d = testDates[n];
 319         wxDateTime dt(d.day, d.month, d.year, d.hour, d.min, d.sec);
 320
 321         // JDNs must be computed for UTC times
 322         double jdn = dt.FromUTC().GetJulianDayNumber();
 323
 324         CPPUNIT_ASSERT_EQUAL( d.jdn, jdn );
 325
 326         dt.Set(jdn);
 327         CPPUNIT_ASSERT_EQUAL( jdn, dt.GetJulianDayNumber() );
 328     }
 329 }
 330
 331 // test week days computation
 332 void DateTimeTestCase::TestTimeWDays()
 333 {
 334     // test GetWeekDay()
 335     size_t n;
 336     for ( n = 0; n < WXSIZEOF(testDates); n++ )
 337     {
 338         const Date& d = testDates[n];
 339         wxDateTime dt(d.day, d.month, d.year, d.hour, d.min, d.sec);
 340
 341         wxDateTime::WeekDay wday = dt.GetWeekDay();
 342         CPPUNIT_ASSERT_EQUAL( d.wday, wday );
 343     }
 344
 345     // test SetToWeekDay()
 346     struct WeekDateTestData
 347     {
 348         Date date;                  // the real date (precomputed)
 349         int nWeek;                  // its week index in the month
 350         wxDateTime::WeekDay wday;   // the weekday
 351         wxDateTime::Month month;    // the month
 352         int year;                   // and the year
 353
 354         wxString Format() const
 355         {
 356             wxString s, which;
 357             switch ( nWeek < -1 ? -nWeek : nWeek )
 358             {
 359                 case 1: which = wxT("first"); break;
 360                 case 2: which = wxT("second"); break;
 361                 case 3: which = wxT("third"); break;
 362                 case 4: which = wxT("fourth"); break;
 363                 case 5: which = wxT("fifth"); break;
 364
 365                 case -1: which = wxT("last"); break;
 366             }
 367
 368             if ( nWeek < -1 )
 369             {
 370                 which += wxT(" from end");
 371             }
 372
 373             s.Printf(wxT("The %s %s of %s in %d"),
 374                      which.c_str(),
 375                      wxDateTime::GetWeekDayName(wday).c_str(),
 376                      wxDateTime::GetMonthName(month).c_str(),
 377                      year);
 378
 379             return s;
 380         }
 381     };
 382
 383     // the array data was generated by the following python program
 384     /*
 385 from DateTime import *
 386 from whrandom import *
 387 from string import *
 388
 389 monthNames = [ 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' ]
 390 wdayNames = [ 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun' ]
 391
 392 week = DateTimeDelta(7)
 393
 394 for n in range(20):
 395     year = randint(1900, 2100)
 396     month = randint(1, 12)
 397     day = randint(1, 28)
 398     dt = DateTime(year, month, day)
 399     wday = dt.day_of_week
 400
 401     countFromEnd = choice([-1, 1])
 402     weekNum = 0;
 403
 404     while dt.month is month:
 405         dt = dt - countFromEnd * week
 406         weekNum = weekNum + countFromEnd
 407
 408     data = { 'day': rjust(`day`, 2), 'month': monthNames[month - 1], 'year': year, 'weekNum': rjust(`weekNum`, 2), 'wday': wdayNames[wday] }
 409
 410     print "{ { %(day)s, wxDateTime::%(month)s, %(year)d }, %(weekNum)d, "\
 411           "wxDateTime::%(wday)s, wxDateTime::%(month)s, %(year)d }," % data
 412     */
 413
 414     static const WeekDateTestData weekDatesTestData[] =
 415     {
 416         { { 20, wxDateTime::Mar, 2045, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  3, wxDateTime::Mon, wxDateTime::Mar, 2045 },
 417         { {  5, wxDateTime::Jun, 1985, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -4, wxDateTime::Wed, wxDateTime::Jun, 1985 },
 418         { { 12, wxDateTime::Nov, 1961, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -3, wxDateTime::Sun, wxDateTime::Nov, 1961 },
 419         { { 27, wxDateTime::Feb, 2093, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -1, wxDateTime::Fri, wxDateTime::Feb, 2093 },
 420         { {  4, wxDateTime::Jul, 2070, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -4, wxDateTime::Fri, wxDateTime::Jul, 2070 },
 421         { {  2, wxDateTime::Apr, 1906, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -5, wxDateTime::Mon, wxDateTime::Apr, 1906 },
 422         { { 19, wxDateTime::Jul, 2023, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -2, wxDateTime::Wed, wxDateTime::Jul, 2023 },
 423         { {  5, wxDateTime::May, 1958, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -4, wxDateTime::Mon, wxDateTime::May, 1958 },
 424         { { 11, wxDateTime::Aug, 1900, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  2, wxDateTime::Sat, wxDateTime::Aug, 1900 },
 425         { { 14, wxDateTime::Feb, 1945, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  2, wxDateTime::Wed, wxDateTime::Feb, 1945 },
 426         { { 25, wxDateTime::Jul, 1967, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -1, wxDateTime::Tue, wxDateTime::Jul, 1967 },
 427         { {  9, wxDateTime::May, 1916, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -4, wxDateTime::Tue, wxDateTime::May, 1916 },
 428         { { 20, wxDateTime::Jun, 1927, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  3, wxDateTime::Mon, wxDateTime::Jun, 1927 },
 429         { {  2, wxDateTime::Aug, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, wxDateTime::Wed, wxDateTime::Aug, 2000 },
 430         { { 20, wxDateTime::Apr, 2044, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  3, wxDateTime::Wed, wxDateTime::Apr, 2044 },
 431         { { 20, wxDateTime::Feb, 1932, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -2, wxDateTime::Sat, wxDateTime::Feb, 1932 },
 432         { { 25, wxDateTime::Jul, 2069, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  4, wxDateTime::Thu, wxDateTime::Jul, 2069 },
 433         { {  3, wxDateTime::Apr, 1925, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, wxDateTime::Fri, wxDateTime::Apr, 1925 },
 434         { { 21, wxDateTime::Mar, 2093, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  3, wxDateTime::Sat, wxDateTime::Mar, 2093 },
 435         { {  3, wxDateTime::Dec, 2074, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -5, wxDateTime::Mon, wxDateTime::Dec, 2074 }
 436     };
 437
 438     wxDateTime dt;
 439     for ( n = 0; n < WXSIZEOF(weekDatesTestData); n++ )
 440     {
 441         const WeekDateTestData& wd = weekDatesTestData[n];
 442
 443         dt.SetToWeekDay(wd.wday, wd.nWeek, wd.month, wd.year);
 444
 445         const Date& d = wd.date;
 446         CPPUNIT_ASSERT( d.SameDay(dt.GetTm()) );
 447     }
 448 }
 449
 450 // test the computation of (ISO) week numbers
 451 void DateTimeTestCase::TestTimeWNumber()
 452 {
 453     struct WeekNumberTestData
 454     {
 455         Date date;                          // the date
 456         wxDateTime::wxDateTime_t week;      // the week number in the year
 457         wxDateTime::wxDateTime_t wmon;      // the week number in the month
 458         wxDateTime::wxDateTime_t wmon2;     // same but week starts with Sun
 459         wxDateTime::wxDateTime_t dnum;      // day number in the year
 460     };
 461
 462     // data generated with the following python script:
 463     /*
 464 from DateTime import *
 465 from whrandom import *
 466 from string import *
 467
 468 monthNames = [ 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' ]
 469 wdayNames = [ 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun' ]
 470
 471 def GetMonthWeek(dt):
 472     weekNumMonth = dt.iso_week[1] - DateTime(dt.year, dt.month, 1).iso_week[1] + 1
 473     if weekNumMonth < 0:
 474         weekNumMonth = weekNumMonth + 53
 475     return weekNumMonth
 476
 477 def GetLastSundayBefore(dt):
 478     if dt.iso_week[2] == 7:
 479         return dt
 480     else:
 481         return dt - DateTimeDelta(dt.iso_week[2])
 482
 483 for n in range(20):
 484     year = randint(1900, 2100)
 485     month = randint(1, 12)
 486     day = randint(1, 28)
 487     dt = DateTime(year, month, day)
 488     dayNum = dt.day_of_year
 489     weekNum = dt.iso_week[1]
 490     weekNumMonth = GetMonthWeek(dt)
 491
 492     weekNumMonth2 = 0
 493     dtSunday = GetLastSundayBefore(dt)
 494
 495     while dtSunday >= GetLastSundayBefore(DateTime(dt.year, dt.month, 1)):
 496         weekNumMonth2 = weekNumMonth2 + 1
 497         dtSunday = dtSunday - DateTimeDelta(7)
 498
 499     data = { 'day': rjust(`day`, 2), \
 500              'month': monthNames[month - 1], \
 501              'year': year, \
 502              'weekNum': rjust(`weekNum`, 2), \
 503              'weekNumMonth': weekNumMonth, \
 504              'weekNumMonth2': weekNumMonth2, \
 505              'dayNum': rjust(`dayNum`, 3) }
 506
 507     print "        { { %(day)s, "\
 508           "wxDateTime::%(month)s, "\
 509           "%(year)d }, "\
 510           "%(weekNum)s, "\
 511           "%(weekNumMonth)s, "\
 512           "%(weekNumMonth2)s, "\
 513           "%(dayNum)s }," % data
 514
 515     */
 516     static const WeekNumberTestData weekNumberTestDates[] =
 517     {
 518         { { 27, wxDateTime::Dec, 1966, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 52, 5, 5, 361 },
 519         { { 22, wxDateTime::Jul, 1926, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 29, 4, 4, 203 },
 520         { { 22, wxDateTime::Oct, 2076, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 43, 4, 4, 296 },
 521         { {  1, wxDateTime::Jul, 1967, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 26, 1, 1, 182 },
 522         { {  8, wxDateTime::Nov, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 46, 2, 2, 313 },
 523         { { 21, wxDateTime::Mar, 1920, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 12, 3, 4,  81 },
 524         { {  7, wxDateTime::Jan, 1965, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 2, 2,   7 },
 525         { { 19, wxDateTime::Oct, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 42, 4, 4, 292 },
 526         { { 13, wxDateTime::Aug, 1955, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 32, 2, 2, 225 },
 527         { { 18, wxDateTime::Jul, 2087, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 29, 3, 3, 199 },
 528         { {  2, wxDateTime::Sep, 2028, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 35, 1, 1, 246 },
 529         { { 28, wxDateTime::Jul, 1945, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 30, 5, 4, 209 },
 530         { { 15, wxDateTime::Jun, 1901, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 24, 3, 3, 166 },
 531         { { 10, wxDateTime::Oct, 1939, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 41, 3, 2, 283 },
 532         { {  3, wxDateTime::Dec, 1965, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 48, 1, 1, 337 },
 533         { { 23, wxDateTime::Feb, 1940, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  8, 4, 4,  54 },
 534         { {  2, wxDateTime::Jan, 1987, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 1, 1,   2 },
 535         { { 11, wxDateTime::Aug, 2079, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 32, 2, 2, 223 },
 536         { {  2, wxDateTime::Feb, 2063, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  5, 1, 1,  33 },
 537         { { 16, wxDateTime::Oct, 1942, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 42, 3, 3, 289 },
 538         { { 30, wxDateTime::Dec, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 5, 5, 364 },
 539         { {  2, wxDateTime::Jan, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 1, 1,   2 },
 540         { {  5, wxDateTime::Jan, 2010, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 2, 2,   5 },
 541         { {  3, wxDateTime::Jan, 2011, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 2, 2,   3 },
 542         { { 31, wxDateTime::Dec, 2009, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 53, 5, 5, 365 },
 543         { { 31, wxDateTime::Dec, 2012, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 6, 6, 366 },
 544         { { 29, wxDateTime::Dec, 2013, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 52, 5, 5, 363 },
 545         { { 30, wxDateTime::Dec, 2013, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 6, 5, 364 },
 546         { { 31, wxDateTime::Dec, 2013, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 6, 5, 365 },
 547     };
 548
 549     for ( size_t n = 0; n < WXSIZEOF(weekNumberTestDates); n++ )
 550     {
 551         const WeekNumberTestData& wn = weekNumberTestDates[n];
 552         const Date& d = wn.date;
 553
 554         wxDateTime dt = d.DT();
 555
 556         wxDateTime::wxDateTime_t
 557             week = dt.GetWeekOfYear(wxDateTime::Monday_First),
 558             wmon = dt.GetWeekOfMonth(wxDateTime::Monday_First),
 559             wmon2 = dt.GetWeekOfMonth(wxDateTime::Sunday_First),
 560             dnum = dt.GetDayOfYear();
 561
 562         WX_ASSERT_EQUAL_MESSAGE( ("day of year for %s", d.Format()),
 563                                  wn.dnum, dnum );
 564         WX_ASSERT_EQUAL_MESSAGE( ("week of month (Monday) for %s", d.Format()),
 565                                  wn.wmon, wmon );
 566         WX_ASSERT_EQUAL_MESSAGE( ("week of month (Sunday) for %s", d.Format()),
 567                                  wn.wmon2, wmon2 );
 568         WX_ASSERT_EQUAL_MESSAGE( ("week of year for %s", d.Format()),
 569                                  wn.week, week );
 570
 571         int year = d.year;
 572         if ( week == 1 && d.month != wxDateTime::Jan )
 573         {
 574             // this means we're in the first week of the next year
 575             year++;
 576         }
 577
 578         wxDateTime
 579             dt2 = wxDateTime::SetToWeekOfYear(year, week, dt.GetWeekDay());
 580         CPPUNIT_ASSERT_EQUAL( dt, dt2 );
 581     }
 582 }
 583
 584 // test DST applicability
 585 void DateTimeTestCase::TestTimeDST()
 586 {
 587     // taken from http://www.energy.ca.gov/daylightsaving.html
 588     static const Date datesDST[2][2009 - 1990 + 1] =
 589     {
 590         {
 591             { 1, wxDateTime::Apr, 1990, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 592             { 7, wxDateTime::Apr, 1991, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 593             { 5, wxDateTime::Apr, 1992, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 594             { 4, wxDateTime::Apr, 1993, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 595             { 3, wxDateTime::Apr, 1994, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 596             { 2, wxDateTime::Apr, 1995, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 597             { 7, wxDateTime::Apr, 1996, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 598             { 6, wxDateTime::Apr, 1997, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 599             { 5, wxDateTime::Apr, 1998, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 600             { 4, wxDateTime::Apr, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 601             { 2, wxDateTime::Apr, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 602             { 1, wxDateTime::Apr, 2001, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 603             { 7, wxDateTime::Apr, 2002, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 604             { 6, wxDateTime::Apr, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 605             { 4, wxDateTime::Apr, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 606             { 3, wxDateTime::Apr, 2005, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 607             { 2, wxDateTime::Apr, 2006, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 608             {11, wxDateTime::Mar, 2007, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 609             { 9, wxDateTime::Mar, 2008, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 610             { 8, wxDateTime::Mar, 2009, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 611         },
 612         {
 613             { 28, wxDateTime::Oct, 1990, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 614             { 27, wxDateTime::Oct, 1991, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 615             { 25, wxDateTime::Oct, 1992, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 616             { 31, wxDateTime::Oct, 1993, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 617             { 30, wxDateTime::Oct, 1994, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 618             { 29, wxDateTime::Oct, 1995, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 619             { 27, wxDateTime::Oct, 1996, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 620             { 26, wxDateTime::Oct, 1997, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 621             { 25, wxDateTime::Oct, 1998, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 622             { 31, wxDateTime::Oct, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 623             { 29, wxDateTime::Oct, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 624             { 28, wxDateTime::Oct, 2001, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 625             { 27, wxDateTime::Oct, 2002, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 626             { 26, wxDateTime::Oct, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 627             { 31, wxDateTime::Oct, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 628             { 30, wxDateTime::Oct, 2005, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 629             { 29, wxDateTime::Oct, 2006, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 630             {  4, wxDateTime::Nov, 2007, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 631             {  2, wxDateTime::Nov, 2008, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 632             {  1, wxDateTime::Nov, 2009, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 633
 634         }
 635     };
 636
 637     for ( size_t n = 0; n < WXSIZEOF(datesDST[0]); n++ )
 638     {
 639         const int year = 1990 + n;
 640         wxDateTime dtBegin = wxDateTime::GetBeginDST(year, wxDateTime::USA),
 641                    dtEnd = wxDateTime::GetEndDST(year, wxDateTime::USA);
 642
 643         const Date& dBegin = datesDST[0][n];
 644         const Date& dEnd = datesDST[1][n];
 645
 646         CPPUNIT_ASSERT_EQUAL( dBegin.DT().FormatDate(), dtBegin.FormatDate() );
 647         CPPUNIT_ASSERT_EQUAL( dEnd.DT().FormatDate(), dtEnd.FormatDate() );
 648     }
 649 }
 650
 651 // test wxDateTime -> text conversion
 652 void DateTimeTestCase::TestTimeFormat()
 653 {
 654     // some information may be lost during conversion, so store what kind
 655     // of info should we recover after a round trip
 656     enum CompareKind
 657     {
 658         CompareNone,        // don't try comparing
 659         CompareBoth,        // dates and times should be identical
 660         CompareYear,        // don't compare centuries (fails for 2 digit years)
 661         CompareDate,        // dates only
 662         CompareTime         // time only
 663     };
 664
 665     static const struct
 666     {
 667         CompareKind compareKind;
 668         const char *format;
 669     } formatTestFormats[] =
 670     {
 671        { CompareYear, "---> %c" }, // %c could use 2 digit years
 672        { CompareDate, "Date is %A, %d of %B, in year %Y" },
 673        { CompareYear, "Date is %x, time is %X" }, // %x could use 2 digits
 674        { CompareTime, "Time is %H:%M:%S or %I:%M:%S %p" },
 675        { CompareNone, "The day of year: %j, the week of year: %W" },
 676        { CompareDate, "ISO date without separators: %Y%m%d" },
 677        { CompareBoth, "RFC 2822 string: %Y-%m-%d %H:%M:%S.%l %z" },
 678
 679     };
 680
 681     const long timeZonesOffsets[] =
 682     {
 683         wxDateTime::TimeZone(wxDateTime::Local).GetOffset(),
 684
 685         // Fictitious TimeZone offsets to ensure time zone formating and
 686         // interpretation works
 687         -(3600 + 2*60),
 688         3*3600 + 30*60
 689     };
 690
 691     static const Date formatTestDates[] =
 692     {
 693         { 29, wxDateTime::May, 1976, 18, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 694         { 31, wxDateTime::Dec, 1999, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 695         {  6, wxDateTime::Feb, 1937, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 696         {  6, wxDateTime::Feb, 1856, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 697         {  6, wxDateTime::Feb, 1857, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 698         { 29, wxDateTime::May, 2076, 18, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 699
 700         // FIXME: the test with 02:15:25 time doesn't pass because of DST
 701         //        computation problems, we get back 03:15:25
 702         { 29, wxDateTime::Feb, 2400, 04, 15, 25, 0.0, wxDateTime::Inv_WeekDay },
 703 #if 0
 704         // Need to add support for BCE dates.
 705         { 01, wxDateTime::Jan,  -52, 03, 16, 47, 0.0, wxDateTime::Inv_WeekDay },
 706 #endif
 707     };
 708
 709     for ( unsigned idxtz = 0; idxtz < WXSIZEOF(timeZonesOffsets); ++idxtz )
 710     {
 711         wxDateTime::TimeZone tz(timeZonesOffsets[idxtz]);
 712         const bool isLocalTz = tz.GetOffset() == -wxGetTimeZone();
 713
 714         for ( size_t d = 0; d < WXSIZEOF(formatTestDates); d++ )
 715         {
 716             wxDateTime dt = formatTestDates[d].DT();
 717             for ( unsigned n = 0; n < WXSIZEOF(formatTestFormats); n++ )
 718             {
 719                 const char *fmt = formatTestFormats[n].format;
 720
 721                 // skip the check with %p for those locales which have empty AM/PM strings:
 722                 // for those locales it's impossible to pass the test with %p...
 723                 wxString am, pm;
 724                 wxDateTime::GetAmPmStrings(&am, &pm);
 725                 if (am.empty() && pm.empty() && wxStrstr(fmt, "%p") != NULL)
 726                     continue;
 727
 728                 // what can we recover?
 729                 CompareKind kind = formatTestFormats[n].compareKind;
 730
 731                 // When using a different time zone we must perform a time zone
 732                 // conversion below which doesn't always work correctly, check
 733                 // for the cases when it doesn't.
 734                 if ( !isLocalTz )
 735                 {
 736                     // DST computation doesn't work correctly for dates above
 737                     // 2038 currently on the systems with 32 bit time_t.
 738                     if ( dt.GetYear() >= 2038 )
 739                         continue;
 740
 741                     // We can't compare just dates nor just times when doing TZ
 742                     // conversion as both are affected by the DST: for the
 743                     // dates, the DST can switch midnight to 23:00 of the
 744                     // previous day while for the times DST can be different
 745                     // for the original date and today.
 746                     if ( kind == CompareDate || kind == CompareTime )
 747                         continue;
 748                 }
 749
 750                 // do convert date to string
 751                 wxString s = dt.Format(fmt, tz);
 752
 753                 // convert back
 754                 wxDateTime dt2;
 755                 const char *result = dt2.ParseFormat(s, fmt);
 756                 if ( !result )
 757                 {
 758                     // conversion failed - should it have?
 759                     WX_ASSERT_MESSAGE(
 760                         ("Test #%u failed: failed to parse \"%s\"", n, s),
 761                         kind == CompareNone
 762                     );
 763                 }
 764                 else // conversion succeeded
 765                 {
 766                     // currently ParseFormat() doesn't support "%Z" and so is
 767                     // incapable of parsing time zone part used at the end of date
 768                     // representations in many (but not "C") locales, compensate
 769                     // for it ourselves by simply consuming and ignoring it
 770                     while ( *result && (*result >= 'A' && *result <= 'Z') )
 771                         result++;
 772
 773                     WX_ASSERT_MESSAGE(
 774                         ("Test #%u failed: \"%s\" was left unparsed in \"%s\"",
 775                          n, result, s),
 776                         !*result
 777                     );
 778
 779                     // Without "%z" we can't recover the time zone used in the
 780                     // call to Format() so we need to call MakeFromTimezone()
 781                     // explicitly.
 782                     if ( !strstr(fmt, "%z") && !isLocalTz )
 783                         dt2.MakeFromTimezone(tz);
 784
 785                     switch ( kind )
 786                     {
 787                         case CompareYear:
 788                             if ( dt2.GetCentury() != dt.GetCentury() )
 789                             {
 790                                 CPPUNIT_ASSERT_EQUAL(dt.GetYear() % 100,
 791                                                      dt2.GetYear() % 100);
 792
 793                                 dt2.SetYear(dt.GetYear());
 794                             }
 795                             // fall through and compare everything
 796
 797                         case CompareBoth:
 798                             CPPUNIT_ASSERT_EQUAL( dt, dt2 );
 799                             break;
 800
 801                         case CompareDate:
 802                             CPPUNIT_ASSERT( dt.IsSameDate(dt2) );
 803                             break;
 804
 805                         case CompareTime:
 806                             CPPUNIT_ASSERT( dt.IsSameTime(dt2) );
 807                             break;
 808
 809                         case CompareNone:
 810                             wxFAIL_MSG( wxT("unexpected") );
 811                             break;
 812                     }
 813                 }
 814             }
 815         }
 816     }
 817
 818     wxDateTime dt;
 819
 820 #if 0
 821     // special case which was known to fail
 822     CPPUNIT_ASSERT( dt.ParseFormat("02/06/1856", "%x") );
 823     CPPUNIT_ASSERT_EQUAL( 1856, dt.GetYear() );
 824 #endif
 825
 826     // also test %l separately
 827     CPPUNIT_ASSERT( dt.ParseFormat("12:23:45.678", "%H:%M:%S.%l") );
 828     CPPUNIT_ASSERT_EQUAL( 678, dt.GetMillisecond() );
 829
 830     // test special case of %l matching 0 milliseconds
 831     CPPUNIT_ASSERT( dt.ParseFormat("12:23:45.000", "%H:%M:%S.%l") );
 832     CPPUNIT_ASSERT_EQUAL( 0, dt.GetMillisecond() );
 833
 834     // test partially specified dates too
 835     wxDateTime dtDef(26, wxDateTime::Sep, 2008);
 836     CPPUNIT_ASSERT( dt.ParseFormat("17", "%d") );
 837     CPPUNIT_ASSERT_EQUAL( 17, dt.GetDay() );
 838
 839     // test some degenerate cases
 840     CPPUNIT_ASSERT( !dt.ParseFormat("", "%z") );
 841     CPPUNIT_ASSERT( !dt.ParseFormat("", "%%") );
 842
 843     // test compilation of some calls which should compile (and not result in
 844     // ambiguity because of char*<->wxCStrData<->wxString conversions)
 845     wxString s("foo");
 846     CPPUNIT_ASSERT( !dt.ParseFormat("foo") );
 847     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo")) );
 848     CPPUNIT_ASSERT( !dt.ParseFormat(s) );
 849     dt.ParseFormat(s.c_str()); // Simply test compilation of this one.
 850
 851     CPPUNIT_ASSERT( !dt.ParseFormat("foo", "%c") );
 852     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), "%c") );
 853     CPPUNIT_ASSERT( !dt.ParseFormat(s, "%c") );
 854     dt.ParseFormat(s.c_str(), "%c");
 855
 856     CPPUNIT_ASSERT( !dt.ParseFormat("foo", wxT("%c")) );
 857     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), wxT("%c")) );
 858     CPPUNIT_ASSERT( !dt.ParseFormat(s, "%c") );
 859     dt.ParseFormat(s.c_str(), wxT("%c"));
 860
 861     wxString spec("%c");
 862     CPPUNIT_ASSERT( !dt.ParseFormat("foo", spec) );
 863     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), spec) );
 864     CPPUNIT_ASSERT( !dt.ParseFormat(s, spec) );
 865     dt.ParseFormat(s.c_str(), spec);
 866 }
 867
 868 // Test parsing time in free format.
 869 void DateTimeTestCase::TestTimeParse()
 870 {
 871     wxDateTime dt;
 872
 873     // Parsing standard formats should work.
 874     CPPUNIT_ASSERT( dt.ParseTime("12:34:56") );
 875     CPPUNIT_ASSERT_EQUAL( "12:34:56", dt.FormatISOTime() );
 876
 877     // Parsing just hours should work too.
 878     dt.ResetTime();
 879     CPPUNIT_ASSERT( dt.ParseTime("17") );
 880     CPPUNIT_ASSERT_EQUAL( "17:00:00", dt.FormatISOTime() );
 881
 882     // Parsing gibberish shouldn't work.
 883     CPPUNIT_ASSERT( !dt.ParseTime("bloordyblop") );
 884 }
 885
 886 void DateTimeTestCase::TestTimeSpanFormat()
 887 {
 888     static const struct TimeSpanFormatTestData
 889     {
 890         long h, min, sec, msec;
 891         const char *fmt;
 892         const char *result;
 893     } testSpans[] =
 894     {
 895         {   12, 34, 56, 789, "%H:%M:%S.%l",   "12:34:56.789"          },
 896         {    1,  2,  3,   0, "%H:%M:%S",      "01:02:03"              },
 897         {    1,  2,  3,   0, "%S",            "3723"                  },
 898         {   -1, -2, -3,   0, "%S",            "-3723"                 },
 899         {   -1, -2, -3,   0, "%H:%M:%S",      "-01:02:03"             },
 900         {   26,  0,  0,   0, "%H",            "26"                    },
 901         {   26,  0,  0,   0, "%D, %H",        "1, 02"                 },
 902         {  -26,  0,  0,   0, "%H",            "-26"                   },
 903         {  -26,  0,  0,   0, "%D, %H",        "-1, 02"                },
 904         {  219,  0,  0,   0, "%H",            "219"                   },
 905         {  219,  0,  0,   0, "%D, %H",        "9, 03"                 },
 906         {  219,  0,  0,   0, "%E, %D, %H",    "1, 2, 03"              },
 907         {    0, -1,  0,   0, "%H:%M:%S",      "-00:01:00"             },
 908         {    0,  0, -1,   0, "%H:%M:%S",      "-00:00:01"             },
 909     };
 910
 911     for ( size_t n = 0; n < WXSIZEOF(testSpans); n++ )
 912     {
 913         const TimeSpanFormatTestData& td = testSpans[n];
 914         wxTimeSpan ts(td.h, td.min, td.sec, td.msec);
 915         CPPUNIT_ASSERT_EQUAL( td.result, ts.Format(td.fmt) );
 916     }
 917 }
 918
 919 void DateTimeTestCase::TestTimeTicks()
 920 {
 921     static const wxDateTime::TimeZone TZ_LOCAL(wxDateTime::Local);
 922     static const wxDateTime::TimeZone TZ_TEST(wxDateTime::NZST);
 923
 924     // this offset is needed to make the test work in any time zone when we
 925     // only have expected test results in UTC in testDates
 926     static const long tzOffset = TZ_LOCAL.GetOffset() - TZ_TEST.GetOffset();
 927
 928     for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
 929     {
 930         const Date& d = testDates[n];
 931         if ( d.gmticks == -1 )
 932             continue;
 933
 934         wxDateTime dt = d.DT().MakeTimezone(TZ_TEST, true /* no DST */);
 935
 936         // GetValue() returns internal UTC-based representation, we need to
 937         // convert it to local TZ before comparing
 938         time_t ticks = (dt.GetValue() / 1000).ToLong() + TZ_LOCAL.GetOffset();
 939         if ( dt.IsDST() )
 940             ticks += 3600;
 941         CPPUNIT_ASSERT_EQUAL( d.gmticks, ticks + tzOffset );
 942
 943         dt = d.DT().FromTimezone(wxDateTime::UTC);
 944         ticks = (dt.GetValue() / 1000).ToLong();
 945         CPPUNIT_ASSERT_EQUAL( d.gmticks, ticks );
 946     }
 947 }
 948
 949 // test parsing dates in RFC822 format
 950 void DateTimeTestCase::TestParceRFC822()
 951 {
 952     static const struct ParseTestData
 953     {
 954         const char *rfc822;
 955         Date date;              // NB: this should be in UTC
 956         bool good;
 957     } parseTestDates[] =
 958     {
 959         {
 960             "Sat, 18 Dec 1999 00:46:40 +0100",
 961             { 17, wxDateTime::Dec, 1999, 23, 46, 40 },
 962             true
 963         },
 964         {
 965             "Wed, 1 Dec 1999 05:17:20 +0300",
 966             {  1, wxDateTime::Dec, 1999, 2, 17, 20 },
 967             true
 968         },
 969         {
 970             "Sun, 28 Aug 2005 03:31:30 +0200",
 971             { 28, wxDateTime::Aug, 2005, 1, 31, 30 },
 972             true
 973         },
 974
 975         {
 976             "Sat, 18 Dec 1999 10:48:30 -0500",
 977             { 18, wxDateTime::Dec, 1999, 15, 48, 30 },
 978             true
 979         },
 980
 981         // seconds are optional according to the RFC
 982         {
 983             "Sun, 01 Jun 2008 16:30 +0200",
 984             {  1, wxDateTime::Jun, 2008, 14, 30, 00 },
 985             true
 986         },
 987
 988         // try some bogus ones too
 989         {
 990             "Sun, 01 Jun 2008 16:30: +0200",
 991             { 0 },
 992             false
 993         },
 994     };
 995
 996     for ( unsigned n = 0; n < WXSIZEOF(parseTestDates); n++ )
 997     {
 998         const char * const datestr = parseTestDates[n].rfc822;
 999
1000         wxDateTime dt;
1001         if ( dt.ParseRfc822Date(datestr) )
1002         {
1003             WX_ASSERT_MESSAGE(
1004                 ("Erroneously parsed \"%s\"", datestr),
1005                 parseTestDates[n].good
1006             );
1007
1008             wxDateTime dtReal = parseTestDates[n].date.DT().FromUTC();
1009             CPPUNIT_ASSERT_EQUAL( dtReal, dt );
1010         }
1011         else // failed to parse
1012         {
1013             WX_ASSERT_MESSAGE(
1014                 ("Failed to parse \"%s\"", datestr),
1015                 !parseTestDates[n].good
1016             );
1017         }
1018     }
1019 }
1020
1021 // test parsing dates in free format
1022 void DateTimeTestCase::TestDateParse()
1023 {
1024     static const struct ParseTestData
1025     {
1026         const char *str;
1027         Date date;              // NB: this should be in UTC
1028         bool good;
1029     } parseTestDates[] =
1030     {
1031         { "21 Mar 2006", { 21, wxDateTime::Mar, 2006 }, true },
1032         { "29 Feb 1976", { 29, wxDateTime::Feb, 1976 }, true },
1033         { "Feb 29 1976", { 29, wxDateTime::Feb, 1976 }, true },
1034         { "31/03/06",    { 31, wxDateTime::Mar,    6 }, true },
1035         { "31/03/2006",  { 31, wxDateTime::Mar, 2006 }, true },
1036
1037         // some invalid ones too
1038         { "29 Feb 2006" },
1039         { "31/04/06" },
1040         { "bloordyblop" },
1041         { "2 .  .    " },
1042     };
1043
1044     // special cases
1045     wxDateTime dt;
1046     CPPUNIT_ASSERT( dt.ParseDate(wxT("today")) );
1047     CPPUNIT_ASSERT_EQUAL( wxDateTime::Today(), dt );
1048
1049     for ( size_t n = 0; n < WXSIZEOF(parseTestDates); n++ )
1050     {
1051         const wxString datestr = TranslateDate(parseTestDates[n].str);
1052
1053         const char * const end = dt.ParseDate(datestr);
1054         if ( end && !*end )
1055         {
1056             WX_ASSERT_MESSAGE(
1057                 ("Erroneously parsed \"%s\"", datestr),
1058                 parseTestDates[n].good
1059             );
1060
1061             CPPUNIT_ASSERT_EQUAL( parseTestDates[n].date.DT(), dt );
1062         }
1063         else // failed to parse
1064         {
1065             WX_ASSERT_MESSAGE(
1066                 ("Failed to parse \"%s\"", datestr),
1067                 !parseTestDates[n].good
1068             );
1069         }
1070     }
1071
1072     // Check that incomplete parse works correctly.
1073     const char* p = dt.ParseFormat("2012-03-23 12:34:56", "%Y-%m-%d");
1074     CPPUNIT_ASSERT_EQUAL( " 12:34:56", wxString(p) );
1075 }
1076
1077 void DateTimeTestCase::TestDateParseISO()
1078 {
1079     static const struct
1080     {
1081         const char *str;
1082         Date date;              // NB: this should be in UTC
1083         bool good;
1084     } parseTestDates[] =
1085     {
1086         { "2006-03-21", { 21, wxDateTime::Mar, 2006 }, true },
1087         { "1976-02-29", { 29, wxDateTime::Feb, 1976 }, true },
1088         { "0006-03-31", { 31, wxDateTime::Mar,    6 }, true },
1089
1090         // some invalid ones too
1091         { "2006:03:31" },
1092         { "31/04/06" },
1093         { "bloordyblop" },
1094         { "" },
1095     };
1096
1097     static const struct
1098     {
1099         const char *str;
1100         wxDateTime::wxDateTime_t hour, min, sec;
1101         bool good;
1102     } parseTestTimes[] =
1103     {
1104         { "13:42:17", 13, 42, 17, true },
1105         { "02:17:01",  2, 17,  1, true },
1106
1107         // some invalid ones too
1108         { "66:03:31" },
1109         { "31/04/06" },
1110         { "bloordyblop" },
1111         { "" },
1112     };
1113
1114     for ( size_t n = 0; n < WXSIZEOF(parseTestDates); n++ )
1115     {
1116         wxDateTime dt;
1117         if ( dt.ParseISODate(parseTestDates[n].str) )
1118         {
1119             CPPUNIT_ASSERT( parseTestDates[n].good );
1120
1121             CPPUNIT_ASSERT_EQUAL( parseTestDates[n].date.DT(), dt );
1122
1123             for ( size_t m = 0; m < WXSIZEOF(parseTestTimes); m++ )
1124             {
1125                 wxString dtCombined;
1126                 dtCombined << parseTestDates[n].str
1127                            << 'T'
1128                            << parseTestTimes[m].str;
1129
1130                 if ( dt.ParseISOCombined(dtCombined) )
1131                 {
1132                     CPPUNIT_ASSERT( parseTestTimes[m].good );
1133
1134                     CPPUNIT_ASSERT_EQUAL( parseTestTimes[m].hour, dt.GetHour()) ;
1135                     CPPUNIT_ASSERT_EQUAL( parseTestTimes[m].min, dt.GetMinute()) ;
1136                     CPPUNIT_ASSERT_EQUAL( parseTestTimes[m].sec, dt.GetSecond()) ;
1137                 }
1138                 else // failed to parse combined date/time
1139                 {
1140                     CPPUNIT_ASSERT( !parseTestTimes[m].good );
1141                 }
1142             }
1143         }
1144         else // failed to parse
1145         {
1146             CPPUNIT_ASSERT( !parseTestDates[n].good );
1147         }
1148     }
1149 }
1150
1151 void DateTimeTestCase::TestDateTimeParse()
1152 {
1153     static const struct ParseTestData
1154     {
1155         const char *str;
1156         Date date;              // NB: this should be in UTC
1157         bool good;
1158     } parseTestDates[] =
1159     {
1160         {
1161             "Thu 22 Nov 2007 07:40:00 PM",
1162             { 22, wxDateTime::Nov, 2007, 19, 40,  0 },
1163             true
1164         },
1165
1166         {
1167             "2010-01-04 14:30",
1168             {  4, wxDateTime::Jan, 2010, 14, 30,  0 },
1169             true
1170         },
1171
1172         {
1173             "bloordyblop",
1174             {  1, wxDateTime::Jan, 9999,  0,  0,  0},
1175             false
1176         },
1177
1178         {
1179             "2012-01-01 10:12:05 +0100",
1180             {  1, wxDateTime::Jan, 2012,  10,  12,  5, -1 },
1181             false // ParseDateTime does know yet +0100
1182         },
1183     };
1184
1185     // the test strings here use "PM" which is not available in all locales so
1186     // we need to use "C" locale for them
1187     CLocaleSetter cloc;
1188
1189     wxDateTime dt;
1190     for ( size_t n = 0; n < WXSIZEOF(parseTestDates); n++ )
1191     {
1192         const wxString datestr = TranslateDate(parseTestDates[n].str);
1193
1194         const char * const end = dt.ParseDateTime(datestr);
1195         if ( end && !*end )
1196         {
1197             WX_ASSERT_MESSAGE(
1198                 ("Erroneously parsed \"%s\"", datestr),
1199                 parseTestDates[n].good
1200             );
1201
1202             CPPUNIT_ASSERT_EQUAL( parseTestDates[n].date.DT(), dt );
1203         }
1204         else // failed to parse
1205         {
1206             WX_ASSERT_MESSAGE(
1207                 ("Failed to parse \"%s\"", datestr),
1208                 !parseTestDates[n].good
1209             );
1210
1211             CPPUNIT_ASSERT( !parseTestDates[n].good );
1212         }
1213     }
1214 }
1215
1216 void DateTimeTestCase::TestTimeArithmetics()
1217 {
1218     static const wxDateSpan testArithmData[] =
1219     {
1220         wxDateSpan::Day(),
1221         wxDateSpan::Week(),
1222         wxDateSpan::Month(),
1223         wxDateSpan::Year(),
1224     };
1225
1226     // the test will *not* work with arbitrary date!
1227     wxDateTime dt(2, wxDateTime::Dec, 1999),
1228                dt1,
1229                dt2;
1230
1231     for ( size_t n = 0; n < WXSIZEOF(testArithmData); n++ )
1232     {
1233         const wxDateSpan& span = testArithmData[n];
1234         dt1 = dt + span;
1235         dt2 = dt - span;
1236
1237         CPPUNIT_ASSERT_EQUAL( dt, dt1 - span );
1238         CPPUNIT_ASSERT_EQUAL( dt, dt2 + span );
1239         CPPUNIT_ASSERT_EQUAL( dt1, dt2 + 2*span );
1240         CPPUNIT_ASSERT_EQUAL( span, dt1.DiffAsDateSpan(dt) );
1241     }
1242
1243     // More date span arithmetics tests
1244     wxDateTime dtd1(5, wxDateTime::Jun, 1998);
1245     wxDateTime dtd2(6, wxDateTime::Aug, 1999);
1246
1247     // All parts in dtd2 is after dtd1
1248     CPPUNIT_ASSERT_EQUAL( wxDateSpan(1, 2, 0, 1), dtd2.DiffAsDateSpan(dtd1) );
1249
1250     // Year and month after, day earlier, so no full month
1251     // Jul has 31 days, so it's 31 - 5 + 4 = 30, or 4w 2d
1252     dtd2.Set(4, wxDateTime::Aug, 1999);
1253     CPPUNIT_ASSERT_EQUAL( wxDateSpan(1, 1, 4, 2), dtd2.DiffAsDateSpan(dtd1) );
1254
1255     // Year and day after, month earlier, so no full year, but same day diff as
1256     // first example
1257     dtd2.Set(6, wxDateTime::May, 1999);
1258     CPPUNIT_ASSERT_EQUAL( wxDateSpan(0, 11, 0, 1), dtd2.DiffAsDateSpan(dtd1) );
1259
1260     // Year after, month and day earlier, so no full month and no full year
1261     // April has 30 days, so it's 30 - 5 + 4 = 29, or 4w 1d
1262     dtd2.Set(4, wxDateTime::May, 1999);
1263     CPPUNIT_ASSERT_EQUAL( wxDateSpan(0, 10, 4, 1), dtd2.DiffAsDateSpan(dtd1) );
1264
1265     // And a reverse. Now we should use days in Jun (again 30 => 4w 1d)
1266     CPPUNIT_ASSERT_EQUAL( wxDateSpan(0, -10, -4, -1), dtd1.DiffAsDateSpan(dtd2) );
1267 }
1268
1269 void DateTimeTestCase::TestDSTBug()
1270 {
1271     /////////////////////////
1272     // Test GetEndDST()
1273     wxDateTime dt = wxDateTime::GetEndDST(2004, wxDateTime::France);
1274     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1275     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1276     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1277     CPPUNIT_ASSERT_EQUAL(1, (int)dt.GetHour());
1278     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
1279     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1280     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1281
1282     /////////////////////////
1283     // Test ResetTime()
1284     dt.SetHour(5);
1285     CPPUNIT_ASSERT_EQUAL(5, (int)dt.GetHour());
1286     dt.ResetTime();
1287     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1288     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1289     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1290     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetHour());
1291     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
1292     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1293     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1294
1295     dt.Set(1, 0, 0, 0);
1296     CPPUNIT_ASSERT_EQUAL(1, (int)dt.GetHour());
1297
1298     /////////////////////////
1299     // Test Today()
1300 #ifdef CHANGE_SYSTEM_DATE
1301     {
1302         DateChanger change(2004, 10, 31, 5, 0, 0);
1303         dt = wxDateTime::Today();
1304     }
1305
1306     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1307     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1308     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1309     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetHour());
1310     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
1311     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1312     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1313
1314     /////////////////////////
1315     // Test Set(hour, minute, second, milli)
1316     wxDateTime dt2;
1317     {
1318         DateChanger change(2004, 10, 31, 5, 0, 0);
1319         dt.Set(1, 30, 0, 0);
1320         dt2.Set(5, 30, 0, 0);
1321     }
1322
1323     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1324     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1325     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1326     CPPUNIT_ASSERT_EQUAL(1, (int)dt.GetHour());
1327     CPPUNIT_ASSERT_EQUAL(30, (int)dt.GetMinute());
1328     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1329     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1330
1331     CPPUNIT_ASSERT_EQUAL(31, (int)dt2.GetDay());
1332     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt2.GetMonth());
1333     CPPUNIT_ASSERT_EQUAL(2004, (int)dt2.GetYear());
1334     CPPUNIT_ASSERT_EQUAL(5, (int)dt2.GetHour());
1335     CPPUNIT_ASSERT_EQUAL(30, (int)dt2.GetMinute());
1336     CPPUNIT_ASSERT_EQUAL(0, (int)dt2.GetSecond());
1337     CPPUNIT_ASSERT_EQUAL(0, (int)dt2.GetMillisecond());
1338 #endif // CHANGE_SYSTEM_DATE
1339 }
1340
1341 void DateTimeTestCase::TestDateOnly()
1342 {
1343     wxDateTime dt(19, wxDateTime::Jan, 2007, 15, 01, 00);
1344
1345     static const wxDateTime::wxDateTime_t DATE_ZERO = 0;
1346     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetHour() );
1347     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetMinute() );
1348     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetSecond() );
1349     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetMillisecond() );
1350
1351     dt.ResetTime();
1352     CPPUNIT_ASSERT_EQUAL( wxDateTime(19, wxDateTime::Jan, 2007), dt );
1353
1354     CPPUNIT_ASSERT_EQUAL( wxDateTime::Today(), wxDateTime::Now().GetDateOnly() );
1355 }
1356
1357 #endif // wxUSE_DATETIME