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 // Copyright:   (c) 2004 Vadim Zeitlin <vadim@wxwindows.org>
   7 ///////////////////////////////////////////////////////////////////////////////
   8
   9 // ----------------------------------------------------------------------------
  10 // headers
  11 // ----------------------------------------------------------------------------
  12
  13 #include "testprec.h"
  14
  15 #ifdef __BORLANDC__
  16     #pragma hdrstop
  17 #endif
  18
  19 #if wxUSE_DATETIME
  20
  21 #ifndef WX_PRECOMP
  22     #include "wx/time.h"    // wxGetTimeZone()
  23 #endif // WX_PRECOMP
  24
  25 #include "wx/wxcrt.h"       // for wxStrstr()
  26
  27 #include "testdate.h"
  28
  29 // to test Today() meaningfully we must be able to change the system date which
  30 // is not usually the case, but if we're under Win32 we can try it -- define
  31 // the macro below to do it
  32 //#define CHANGE_SYSTEM_DATE
  33
  34 #ifndef __WINDOWS__
  35     #undef CHANGE_SYSTEM_DATE
  36 #endif
  37
  38 #ifdef CHANGE_SYSTEM_DATE
  39
  40 class DateChanger
  41 {
  42 public:
  43     DateChanger(int year, int month, int day, int hour, int min, int sec)
  44     {
  45         SYSTEMTIME st;
  46         st.wDay = day;
  47         st.wMonth = month;
  48         st.wYear = year;
  49         st.wHour = hour;
  50         st.wMinute = min;
  51         st.wSecond = sec;
  52         st.wMilliseconds = 0;
  53
  54         ::GetSystemTime(&m_savedTime);
  55         ::GetTimeZoneInformation(&m_tzi);
  56
  57         m_changed = ::SetSystemTime(&st) != 0;
  58     }
  59
  60     ~DateChanger()
  61     {
  62         if ( m_changed )
  63         {
  64             ::SetSystemTime(&m_savedTime);
  65             ::SetTimeZoneInformation(&m_tzi);
  66         }
  67     }
  68
  69 private:
  70     SYSTEMTIME m_savedTime;
  71     TIME_ZONE_INFORMATION m_tzi;
  72     bool m_changed;
  73 };
  74
  75 #endif // CHANGE_SYSTEM_DATE
  76
  77 // helper function translating week day/month names from English to the current
  78 // locale
  79 static wxString TranslateDate(const wxString& str)
  80 {
  81     // small optimization: if there are no alphabetic characters in the string,
  82     // there is nothing to translate
  83     wxString::const_iterator i, end = str.end();
  84     for ( i = str.begin(); i != end; ++i )
  85     {
  86         if ( isalpha(*i) )
  87             break;
  88     }
  89
  90     if ( i == end )
  91         return str;
  92
  93     wxString trans(str);
  94
  95     for ( wxDateTime::WeekDay wd = wxDateTime::Sun;
  96           wd < wxDateTime::Inv_WeekDay;
  97           wxNextWDay(wd) )
  98     {
  99         trans.Replace
 100               (
 101                 wxDateTime::GetEnglishWeekDayName(wd, wxDateTime::Name_Abbr),
 102                 wxDateTime::GetWeekDayName(wd, wxDateTime::Name_Abbr)
 103               );
 104     }
 105
 106     for ( wxDateTime::Month mon = wxDateTime::Jan;
 107           mon < wxDateTime::Inv_Month;
 108           wxNextMonth(mon) )
 109     {
 110         trans.Replace
 111               (
 112                 wxDateTime::GetEnglishMonthName(mon, wxDateTime::Name_Abbr),
 113                 wxDateTime::GetMonthName(mon, wxDateTime::Name_Abbr)
 114               );
 115     }
 116
 117     return trans;
 118 }
 119
 120 // ----------------------------------------------------------------------------
 121 // broken down date representation used for testing
 122 // ----------------------------------------------------------------------------
 123
 124 struct Date
 125 {
 126     wxDateTime::wxDateTime_t day;
 127     wxDateTime::Month month;
 128     int year;
 129     wxDateTime::wxDateTime_t hour, min, sec;
 130     double jdn;
 131     wxDateTime::WeekDay wday;
 132     time_t gmticks;
 133
 134     void Init(const wxDateTime::Tm& tm)
 135     {
 136         day = tm.mday;
 137         month = tm.mon;
 138         year = tm.year;
 139         hour = tm.hour;
 140         min = tm.min;
 141         sec = tm.sec;
 142         jdn = 0.0;
 143         gmticks = -1;
 144     }
 145
 146     wxDateTime DT() const
 147         { return wxDateTime(day, month, year, hour, min, sec); }
 148
 149     bool SameDay(const wxDateTime::Tm& tm) const
 150     {
 151         return day == tm.mday && month == tm.mon && year == tm.year;
 152     }
 153
 154     wxString Format() const
 155     {
 156         wxString s;
 157         s.Printf(wxT("%02d:%02d:%02d %10s %02d, %4d%s"),
 158                  hour, min, sec,
 159                  wxDateTime::GetMonthName(month).c_str(),
 160                  day,
 161                  abs(wxDateTime::ConvertYearToBC(year)),
 162                  year > 0 ? wxT("AD") : wxT("BC"));
 163         return s;
 164     }
 165
 166     wxString FormatDate() const
 167     {
 168         wxString s;
 169         s.Printf(wxT("%02d-%s-%4d%s"),
 170                  day,
 171                  wxDateTime::GetMonthName(month, wxDateTime::Name_Abbr).c_str(),
 172                  abs(wxDateTime::ConvertYearToBC(year)),
 173                  year > 0 ? wxT("AD") : wxT("BC"));
 174         return s;
 175     }
 176 };
 177
 178 // ----------------------------------------------------------------------------
 179 // test data
 180 // ----------------------------------------------------------------------------
 181
 182 static const Date testDates[] =
 183 {
 184     {  1, wxDateTime::Jan,  1970, 00, 00, 00, 2440587.5, wxDateTime::Thu,         0 },
 185     {  7, wxDateTime::Feb,  2036, 00, 00, 00, 2464730.5, wxDateTime::Thu,        -1 },
 186     {  8, wxDateTime::Feb,  2036, 00, 00, 00, 2464731.5, wxDateTime::Fri,        -1 },
 187     {  1, wxDateTime::Jan,  2037, 00, 00, 00, 2465059.5, wxDateTime::Thu,        -1 },
 188     {  1, wxDateTime::Jan,  2038, 00, 00, 00, 2465424.5, wxDateTime::Fri,        -1 },
 189     { 21, wxDateTime::Jan,  2222, 00, 00, 00, 2532648.5, wxDateTime::Mon,        -1 },
 190     { 29, wxDateTime::May,  1976, 12, 00, 00, 2442928.0, wxDateTime::Sat, 202219200 },
 191     { 29, wxDateTime::Feb,  1976, 00, 00, 00, 2442837.5, wxDateTime::Sun, 194400000 },
 192     {  1, wxDateTime::Jan,  1900, 12, 00, 00, 2415021.0, wxDateTime::Mon,        -1 },
 193     {  1, wxDateTime::Jan,  1900, 00, 00, 00, 2415020.5, wxDateTime::Mon,        -1 },
 194     { 15, wxDateTime::Oct,  1582, 00, 00, 00, 2299160.5, wxDateTime::Fri,        -1 },
 195     {  4, wxDateTime::Oct,  1582, 00, 00, 00, 2299149.5, wxDateTime::Mon,        -1 },
 196     {  1, wxDateTime::Mar,     1, 00, 00, 00, 1721484.5, wxDateTime::Thu,        -1 },
 197     {  1, wxDateTime::Jan,     1, 00, 00, 00, 1721425.5, wxDateTime::Mon,        -1 },
 198     { 31, wxDateTime::Dec,     0, 00, 00, 00, 1721424.5, wxDateTime::Sun,        -1 },
 199     {  1, wxDateTime::Jan,     0, 00, 00, 00, 1721059.5, wxDateTime::Sat,        -1 },
 200     { 12, wxDateTime::Aug, -1234, 00, 00, 00, 1270573.5, wxDateTime::Fri,        -1 },
 201     { 12, wxDateTime::Aug, -4000, 00, 00, 00,  260313.5, wxDateTime::Sat,        -1 },
 202     { 24, wxDateTime::Nov, -4713, 00, 00, 00,      -0.5, wxDateTime::Mon,        -1 },
 203 };
 204
 205
 206 // ----------------------------------------------------------------------------
 207 // test class
 208 // ----------------------------------------------------------------------------
 209
 210 class DateTimeTestCase : public CppUnit::TestCase
 211 {
 212 public:
 213     DateTimeTestCase() { }
 214
 215 private:
 216     CPPUNIT_TEST_SUITE( DateTimeTestCase );
 217         CPPUNIT_TEST( TestLeapYears );
 218         CPPUNIT_TEST( TestTimeSet );
 219         CPPUNIT_TEST( TestTimeJDN );
 220         CPPUNIT_TEST( TestTimeWNumber );
 221         CPPUNIT_TEST( TestTimeWDays );
 222         CPPUNIT_TEST( TestTimeDST );
 223         CPPUNIT_TEST( TestTimeFormat );
 224         CPPUNIT_TEST( TestTimeParse );
 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 TestTimeParse();
 244     void TestTimeSpanFormat();
 245     void TestTimeTicks();
 246     void TestParceRFC822();
 247     void TestDateParse();
 248     void TestDateParseISO();
 249     void TestDateTimeParse();
 250     void TestTimeArithmetics();
 251     void TestDSTBug();
 252     void TestDateOnly();
 253
 254     DECLARE_NO_COPY_CLASS(DateTimeTestCase)
 255 };
 256
 257 // register in the unnamed registry so that these tests are run by default
 258 CPPUNIT_TEST_SUITE_REGISTRATION( DateTimeTestCase );
 259
 260 // also include in its own registry so that these tests can be run alone
 261 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( DateTimeTestCase, "DateTimeTestCase" );
 262
 263 // ============================================================================
 264 // implementation
 265 // ============================================================================
 266
 267 // test leap years detection
 268 void DateTimeTestCase::TestLeapYears()
 269 {
 270     static const struct LeapYearTestData
 271     {
 272         int year;
 273         bool isLeap;
 274     } years[] =
 275     {
 276         { 1900, false },
 277         { 1990, false },
 278         { 1976, true },
 279         { 2000, true },
 280         { 2030, false },
 281         { 1984, true },
 282         { 2100, false },
 283         { 2400, true },
 284     };
 285
 286     for ( size_t n = 0; n < WXSIZEOF(years); n++ )
 287     {
 288         const LeapYearTestData& y = years[n];
 289
 290         CPPUNIT_ASSERT_EQUAL( y.isLeap, wxDateTime::IsLeapYear(y.year) );
 291     }
 292 }
 293
 294 // test constructing wxDateTime objects
 295 void DateTimeTestCase::TestTimeSet()
 296 {
 297     for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
 298     {
 299         const Date& d1 = testDates[n];
 300         wxDateTime dt = d1.DT();
 301
 302         Date d2;
 303         d2.Init(dt.GetTm());
 304
 305         wxString s1 = d1.Format(),
 306                  s2 = d2.Format();
 307
 308         CPPUNIT_ASSERT_EQUAL( s1, s2 );
 309     }
 310 }
 311
 312 // test conversions to JDN &c
 313 void DateTimeTestCase::TestTimeJDN()
 314 {
 315     for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
 316     {
 317         const Date& d = testDates[n];
 318         wxDateTime dt(d.day, d.month, d.year, d.hour, d.min, d.sec);
 319
 320         // JDNs must be computed for UTC times
 321         double jdn = dt.FromUTC().GetJulianDayNumber();
 322
 323         CPPUNIT_ASSERT_EQUAL( d.jdn, jdn );
 324
 325         dt.Set(jdn);
 326         CPPUNIT_ASSERT_EQUAL( jdn, dt.GetJulianDayNumber() );
 327     }
 328 }
 329
 330 // test week days computation
 331 void DateTimeTestCase::TestTimeWDays()
 332 {
 333     // test GetWeekDay()
 334     size_t n;
 335     for ( n = 0; n < WXSIZEOF(testDates); n++ )
 336     {
 337         const Date& d = testDates[n];
 338         wxDateTime dt(d.day, d.month, d.year, d.hour, d.min, d.sec);
 339
 340         wxDateTime::WeekDay wday = dt.GetWeekDay();
 341         CPPUNIT_ASSERT_EQUAL( d.wday, wday );
 342     }
 343
 344     // test SetToWeekDay()
 345     struct WeekDateTestData
 346     {
 347         Date date;                  // the real date (precomputed)
 348         int nWeek;                  // its week index in the month
 349         wxDateTime::WeekDay wday;   // the weekday
 350         wxDateTime::Month month;    // the month
 351         int year;                   // and the year
 352
 353         wxString Format() const
 354         {
 355             wxString s, which;
 356             switch ( nWeek < -1 ? -nWeek : nWeek )
 357             {
 358                 case 1: which = wxT("first"); break;
 359                 case 2: which = wxT("second"); break;
 360                 case 3: which = wxT("third"); break;
 361                 case 4: which = wxT("fourth"); break;
 362                 case 5: which = wxT("fifth"); break;
 363
 364                 case -1: which = wxT("last"); break;
 365             }
 366
 367             if ( nWeek < -1 )
 368             {
 369                 which += wxT(" from end");
 370             }
 371
 372             s.Printf(wxT("The %s %s of %s in %d"),
 373                      which.c_str(),
 374                      wxDateTime::GetWeekDayName(wday).c_str(),
 375                      wxDateTime::GetMonthName(month).c_str(),
 376                      year);
 377
 378             return s;
 379         }
 380     };
 381
 382     // the array data was generated by the following python program
 383     /*
 384 from DateTime import *
 385 from whrandom import *
 386 from string import *
 387
 388 monthNames = [ 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' ]
 389 wdayNames = [ 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun' ]
 390
 391 week = DateTimeDelta(7)
 392
 393 for n in range(20):
 394     year = randint(1900, 2100)
 395     month = randint(1, 12)
 396     day = randint(1, 28)
 397     dt = DateTime(year, month, day)
 398     wday = dt.day_of_week
 399
 400     countFromEnd = choice([-1, 1])
 401     weekNum = 0;
 402
 403     while dt.month is month:
 404         dt = dt - countFromEnd * week
 405         weekNum = weekNum + countFromEnd
 406
 407     data = { 'day': rjust(`day`, 2), 'month': monthNames[month - 1], 'year': year, 'weekNum': rjust(`weekNum`, 2), 'wday': wdayNames[wday] }
 408
 409     print "{ { %(day)s, wxDateTime::%(month)s, %(year)d }, %(weekNum)d, "\
 410           "wxDateTime::%(wday)s, wxDateTime::%(month)s, %(year)d }," % data
 411     */
 412
 413     static const WeekDateTestData weekDatesTestData[] =
 414     {
 415         { { 20, wxDateTime::Mar, 2045, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  3, wxDateTime::Mon, wxDateTime::Mar, 2045 },
 416         { {  5, wxDateTime::Jun, 1985, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -4, wxDateTime::Wed, wxDateTime::Jun, 1985 },
 417         { { 12, wxDateTime::Nov, 1961, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -3, wxDateTime::Sun, wxDateTime::Nov, 1961 },
 418         { { 27, wxDateTime::Feb, 2093, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -1, wxDateTime::Fri, wxDateTime::Feb, 2093 },
 419         { {  4, wxDateTime::Jul, 2070, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -4, wxDateTime::Fri, wxDateTime::Jul, 2070 },
 420         { {  2, wxDateTime::Apr, 1906, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -5, wxDateTime::Mon, wxDateTime::Apr, 1906 },
 421         { { 19, wxDateTime::Jul, 2023, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -2, wxDateTime::Wed, wxDateTime::Jul, 2023 },
 422         { {  5, wxDateTime::May, 1958, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -4, wxDateTime::Mon, wxDateTime::May, 1958 },
 423         { { 11, wxDateTime::Aug, 1900, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  2, wxDateTime::Sat, wxDateTime::Aug, 1900 },
 424         { { 14, wxDateTime::Feb, 1945, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  2, wxDateTime::Wed, wxDateTime::Feb, 1945 },
 425         { { 25, wxDateTime::Jul, 1967, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -1, wxDateTime::Tue, wxDateTime::Jul, 1967 },
 426         { {  9, wxDateTime::May, 1916, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -4, wxDateTime::Tue, wxDateTime::May, 1916 },
 427         { { 20, wxDateTime::Jun, 1927, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  3, wxDateTime::Mon, wxDateTime::Jun, 1927 },
 428         { {  2, wxDateTime::Aug, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, wxDateTime::Wed, wxDateTime::Aug, 2000 },
 429         { { 20, wxDateTime::Apr, 2044, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  3, wxDateTime::Wed, wxDateTime::Apr, 2044 },
 430         { { 20, wxDateTime::Feb, 1932, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -2, wxDateTime::Sat, wxDateTime::Feb, 1932 },
 431         { { 25, wxDateTime::Jul, 2069, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  4, wxDateTime::Thu, wxDateTime::Jul, 2069 },
 432         { {  3, wxDateTime::Apr, 1925, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, wxDateTime::Fri, wxDateTime::Apr, 1925 },
 433         { { 21, wxDateTime::Mar, 2093, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  3, wxDateTime::Sat, wxDateTime::Mar, 2093 },
 434         { {  3, wxDateTime::Dec, 2074, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -5, wxDateTime::Mon, wxDateTime::Dec, 2074 }
 435     };
 436
 437     wxDateTime dt;
 438     for ( n = 0; n < WXSIZEOF(weekDatesTestData); n++ )
 439     {
 440         const WeekDateTestData& wd = weekDatesTestData[n];
 441
 442         dt.SetToWeekDay(wd.wday, wd.nWeek, wd.month, wd.year);
 443
 444         const Date& d = wd.date;
 445         CPPUNIT_ASSERT( d.SameDay(dt.GetTm()) );
 446     }
 447 }
 448
 449 // test the computation of (ISO) week numbers
 450 void DateTimeTestCase::TestTimeWNumber()
 451 {
 452     struct WeekNumberTestData
 453     {
 454         Date date;                          // the date
 455         wxDateTime::wxDateTime_t week;      // the week number in the year
 456         wxDateTime::wxDateTime_t wmon;      // the week number in the month
 457         wxDateTime::wxDateTime_t wmon2;     // same but week starts with Sun
 458         wxDateTime::wxDateTime_t dnum;      // day number in the year
 459     };
 460
 461     // data generated with the following python script:
 462     /*
 463 from DateTime import *
 464 from whrandom import *
 465 from string import *
 466
 467 monthNames = [ 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' ]
 468 wdayNames = [ 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun' ]
 469
 470 def GetMonthWeek(dt):
 471     weekNumMonth = dt.iso_week[1] - DateTime(dt.year, dt.month, 1).iso_week[1] + 1
 472     if weekNumMonth < 0:
 473         weekNumMonth = weekNumMonth + 53
 474     return weekNumMonth
 475
 476 def GetLastSundayBefore(dt):
 477     if dt.iso_week[2] == 7:
 478         return dt
 479     else:
 480         return dt - DateTimeDelta(dt.iso_week[2])
 481
 482 for n in range(20):
 483     year = randint(1900, 2100)
 484     month = randint(1, 12)
 485     day = randint(1, 28)
 486     dt = DateTime(year, month, day)
 487     dayNum = dt.day_of_year
 488     weekNum = dt.iso_week[1]
 489     weekNumMonth = GetMonthWeek(dt)
 490
 491     weekNumMonth2 = 0
 492     dtSunday = GetLastSundayBefore(dt)
 493
 494     while dtSunday >= GetLastSundayBefore(DateTime(dt.year, dt.month, 1)):
 495         weekNumMonth2 = weekNumMonth2 + 1
 496         dtSunday = dtSunday - DateTimeDelta(7)
 497
 498     data = { 'day': rjust(`day`, 2), \
 499              'month': monthNames[month - 1], \
 500              'year': year, \
 501              'weekNum': rjust(`weekNum`, 2), \
 502              'weekNumMonth': weekNumMonth, \
 503              'weekNumMonth2': weekNumMonth2, \
 504              'dayNum': rjust(`dayNum`, 3) }
 505
 506     print "        { { %(day)s, "\
 507           "wxDateTime::%(month)s, "\
 508           "%(year)d }, "\
 509           "%(weekNum)s, "\
 510           "%(weekNumMonth)s, "\
 511           "%(weekNumMonth2)s, "\
 512           "%(dayNum)s }," % data
 513
 514     */
 515     static const WeekNumberTestData weekNumberTestDates[] =
 516     {
 517         { { 27, wxDateTime::Dec, 1966, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 52, 5, 5, 361 },
 518         { { 22, wxDateTime::Jul, 1926, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 29, 4, 4, 203 },
 519         { { 22, wxDateTime::Oct, 2076, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 43, 4, 4, 296 },
 520         { {  1, wxDateTime::Jul, 1967, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 26, 1, 1, 182 },
 521         { {  8, wxDateTime::Nov, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 46, 2, 2, 313 },
 522         { { 21, wxDateTime::Mar, 1920, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 12, 3, 4,  81 },
 523         { {  7, wxDateTime::Jan, 1965, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 2, 2,   7 },
 524         { { 19, wxDateTime::Oct, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 42, 4, 4, 292 },
 525         { { 13, wxDateTime::Aug, 1955, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 32, 2, 2, 225 },
 526         { { 18, wxDateTime::Jul, 2087, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 29, 3, 3, 199 },
 527         { {  2, wxDateTime::Sep, 2028, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 35, 1, 1, 246 },
 528         { { 28, wxDateTime::Jul, 1945, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 30, 5, 4, 209 },
 529         { { 15, wxDateTime::Jun, 1901, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 24, 3, 3, 166 },
 530         { { 10, wxDateTime::Oct, 1939, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 41, 3, 2, 283 },
 531         { {  3, wxDateTime::Dec, 1965, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 48, 1, 1, 337 },
 532         { { 23, wxDateTime::Feb, 1940, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  8, 4, 4,  54 },
 533         { {  2, wxDateTime::Jan, 1987, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 1, 1,   2 },
 534         { { 11, wxDateTime::Aug, 2079, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 32, 2, 2, 223 },
 535         { {  2, wxDateTime::Feb, 2063, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  5, 1, 1,  33 },
 536         { { 16, wxDateTime::Oct, 1942, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 42, 3, 3, 289 },
 537         { { 30, wxDateTime::Dec, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 5, 5, 364 },
 538         { {  2, wxDateTime::Jan, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 1, 1,   2 },
 539         { {  5, wxDateTime::Jan, 2010, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 2, 2,   5 },
 540         { {  3, wxDateTime::Jan, 2011, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 2, 2,   3 },
 541         { { 31, wxDateTime::Dec, 2009, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 53, 5, 5, 365 },
 542         { { 31, wxDateTime::Dec, 2012, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 6, 6, 366 },
 543         { { 29, wxDateTime::Dec, 2013, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 52, 5, 5, 363 },
 544         { { 30, wxDateTime::Dec, 2013, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 6, 5, 364 },
 545         { { 31, wxDateTime::Dec, 2013, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 6, 5, 365 },
 546     };
 547
 548     for ( size_t n = 0; n < WXSIZEOF(weekNumberTestDates); n++ )
 549     {
 550         const WeekNumberTestData& wn = weekNumberTestDates[n];
 551         const Date& d = wn.date;
 552
 553         wxDateTime dt = d.DT();
 554
 555         wxDateTime::wxDateTime_t
 556             week = dt.GetWeekOfYear(wxDateTime::Monday_First),
 557             wmon = dt.GetWeekOfMonth(wxDateTime::Monday_First),
 558             wmon2 = dt.GetWeekOfMonth(wxDateTime::Sunday_First),
 559             dnum = dt.GetDayOfYear();
 560
 561         WX_ASSERT_EQUAL_MESSAGE( ("day of year for %s", d.Format()),
 562                                  wn.dnum, dnum );
 563         WX_ASSERT_EQUAL_MESSAGE( ("week of month (Monday) for %s", d.Format()),
 564                                  wn.wmon, wmon );
 565         WX_ASSERT_EQUAL_MESSAGE( ("week of month (Sunday) for %s", d.Format()),
 566                                  wn.wmon2, wmon2 );
 567         WX_ASSERT_EQUAL_MESSAGE( ("week of year for %s", d.Format()),
 568                                  wn.week, week );
 569
 570         int year = d.year;
 571         if ( week == 1 && d.month != wxDateTime::Jan )
 572         {
 573             // this means we're in the first week of the next year
 574             year++;
 575         }
 576
 577         wxDateTime
 578             dt2 = wxDateTime::SetToWeekOfYear(year, week, dt.GetWeekDay());
 579         CPPUNIT_ASSERT_EQUAL( dt, dt2 );
 580     }
 581 }
 582
 583 // test DST applicability
 584 void DateTimeTestCase::TestTimeDST()
 585 {
 586     // taken from http://www.energy.ca.gov/daylightsaving.html
 587     static const Date datesDST[2][2009 - 1990 + 1] =
 588     {
 589         {
 590             { 1, wxDateTime::Apr, 1990, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 591             { 7, wxDateTime::Apr, 1991, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 592             { 5, wxDateTime::Apr, 1992, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 593             { 4, wxDateTime::Apr, 1993, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 594             { 3, wxDateTime::Apr, 1994, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 595             { 2, wxDateTime::Apr, 1995, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 596             { 7, wxDateTime::Apr, 1996, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 597             { 6, wxDateTime::Apr, 1997, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 598             { 5, wxDateTime::Apr, 1998, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 599             { 4, wxDateTime::Apr, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 600             { 2, wxDateTime::Apr, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 601             { 1, wxDateTime::Apr, 2001, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 602             { 7, wxDateTime::Apr, 2002, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 603             { 6, wxDateTime::Apr, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 604             { 4, wxDateTime::Apr, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 605             { 3, wxDateTime::Apr, 2005, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 606             { 2, wxDateTime::Apr, 2006, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 607             {11, wxDateTime::Mar, 2007, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 608             { 9, wxDateTime::Mar, 2008, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 609             { 8, wxDateTime::Mar, 2009, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 610         },
 611         {
 612             { 28, wxDateTime::Oct, 1990, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 613             { 27, wxDateTime::Oct, 1991, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 614             { 25, wxDateTime::Oct, 1992, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 615             { 31, wxDateTime::Oct, 1993, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 616             { 30, wxDateTime::Oct, 1994, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 617             { 29, wxDateTime::Oct, 1995, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 618             { 27, wxDateTime::Oct, 1996, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 619             { 26, wxDateTime::Oct, 1997, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 620             { 25, wxDateTime::Oct, 1998, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 621             { 31, wxDateTime::Oct, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 622             { 29, wxDateTime::Oct, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 623             { 28, wxDateTime::Oct, 2001, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 624             { 27, wxDateTime::Oct, 2002, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 625             { 26, wxDateTime::Oct, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 626             { 31, wxDateTime::Oct, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 627             { 30, wxDateTime::Oct, 2005, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 628             { 29, wxDateTime::Oct, 2006, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 629             {  4, wxDateTime::Nov, 2007, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 630             {  2, wxDateTime::Nov, 2008, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 631             {  1, wxDateTime::Nov, 2009, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 632
 633         }
 634     };
 635
 636     for ( size_t n = 0; n < WXSIZEOF(datesDST[0]); n++ )
 637     {
 638         const int year = 1990 + n;
 639         wxDateTime dtBegin = wxDateTime::GetBeginDST(year, wxDateTime::USA),
 640                    dtEnd = wxDateTime::GetEndDST(year, wxDateTime::USA);
 641
 642         const Date& dBegin = datesDST[0][n];
 643         const Date& dEnd = datesDST[1][n];
 644
 645         CPPUNIT_ASSERT_EQUAL( dBegin.DT().FormatDate(), dtBegin.FormatDate() );
 646         CPPUNIT_ASSERT_EQUAL( dEnd.DT().FormatDate(), dtEnd.FormatDate() );
 647     }
 648 }
 649
 650 // test wxDateTime -> text conversion
 651 void DateTimeTestCase::TestTimeFormat()
 652 {
 653     // some information may be lost during conversion, so store what kind
 654     // of info should we recover after a round trip
 655     enum CompareKind
 656     {
 657         CompareNone,        // don't try comparing
 658         CompareBoth,        // dates and times should be identical
 659         CompareYear,        // don't compare centuries (fails for 2 digit years)
 660         CompareDate,        // dates only
 661         CompareTime         // time only
 662     };
 663
 664     static const struct
 665     {
 666         CompareKind compareKind;
 667         const char *format;
 668     } formatTestFormats[] =
 669     {
 670        { CompareYear, "---> %c" }, // %c could use 2 digit years
 671        { CompareDate, "Date is %A, %d of %B, in year %Y" },
 672        { CompareYear, "Date is %x, time is %X" }, // %x could use 2 digits
 673        { CompareTime, "Time is %H:%M:%S or %I:%M:%S %p" },
 674        { CompareNone, "The day of year: %j, the week of year: %W" },
 675        { CompareDate, "ISO date without separators: %Y%m%d" },
 676        { CompareBoth, "RFC 2822 string: %Y-%m-%d %H:%M:%S.%l %z" },
 677
 678     };
 679
 680     const long timeZonesOffsets[] =
 681     {
 682         wxDateTime::TimeZone(wxDateTime::Local).GetOffset(),
 683
 684         // Fictitious TimeZone offsets to ensure time zone formating and
 685         // interpretation works
 686         -(3600 + 2*60),
 687         3*3600 + 30*60
 688     };
 689
 690     static const Date formatTestDates[] =
 691     {
 692         { 29, wxDateTime::May, 1976, 18, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 693         { 31, wxDateTime::Dec, 1999, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 694         {  6, wxDateTime::Feb, 1937, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 695         {  6, wxDateTime::Feb, 1856, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 696         {  6, wxDateTime::Feb, 1857, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 697         { 29, wxDateTime::May, 2076, 18, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 698
 699         // FIXME: the test with 02:15:25 time doesn't pass because of DST
 700         //        computation problems, we get back 03:15:25
 701         { 29, wxDateTime::Feb, 2400, 04, 15, 25, 0.0, wxDateTime::Inv_WeekDay },
 702 #if 0
 703         // Need to add support for BCE dates.
 704         { 01, wxDateTime::Jan,  -52, 03, 16, 47, 0.0, wxDateTime::Inv_WeekDay },
 705 #endif
 706     };
 707
 708     for ( unsigned idxtz = 0; idxtz < WXSIZEOF(timeZonesOffsets); ++idxtz )
 709     {
 710         wxDateTime::TimeZone tz(timeZonesOffsets[idxtz]);
 711         const bool isLocalTz = tz.GetOffset() == -wxGetTimeZone();
 712
 713         for ( size_t d = 0; d < WXSIZEOF(formatTestDates); d++ )
 714         {
 715             wxDateTime dt = formatTestDates[d].DT();
 716             for ( unsigned n = 0; n < WXSIZEOF(formatTestFormats); n++ )
 717             {
 718                 const char *fmt = formatTestFormats[n].format;
 719
 720                 // skip the check with %p for those locales which have empty AM/PM strings:
 721                 // for those locales it's impossible to pass the test with %p...
 722                 wxString am, pm;
 723                 wxDateTime::GetAmPmStrings(&am, &pm);
 724                 if (am.empty() && pm.empty() && wxStrstr(fmt, "%p") != NULL)
 725                     continue;
 726
 727                 // what can we recover?
 728                 CompareKind kind = formatTestFormats[n].compareKind;
 729
 730                 // When using a different time zone we must perform a time zone
 731                 // conversion below which doesn't always work correctly, check
 732                 // for the cases when it doesn't.
 733                 if ( !isLocalTz )
 734                 {
 735                     // DST computation doesn't work correctly for dates above
 736                     // 2038 currently on the systems with 32 bit time_t.
 737                     if ( dt.GetYear() >= 2038 )
 738                         continue;
 739
 740                     // We can't compare just dates nor just times when doing TZ
 741                     // conversion as both are affected by the DST: for the
 742                     // dates, the DST can switch midnight to 23:00 of the
 743                     // previous day while for the times DST can be different
 744                     // for the original date and today.
 745                     if ( kind == CompareDate || kind == CompareTime )
 746                         continue;
 747                 }
 748
 749                 // do convert date to string
 750                 wxString s = dt.Format(fmt, tz);
 751
 752                 // convert back
 753                 wxDateTime dt2;
 754                 const char *result = dt2.ParseFormat(s, fmt);
 755                 if ( !result )
 756                 {
 757                     // conversion failed - should it have?
 758                     WX_ASSERT_MESSAGE(
 759                         ("Test #%u failed: failed to parse \"%s\"", n, s),
 760                         kind == CompareNone
 761                     );
 762                 }
 763                 else // conversion succeeded
 764                 {
 765                     // currently ParseFormat() doesn't support "%Z" and so is
 766                     // incapable of parsing time zone part used at the end of date
 767                     // representations in many (but not "C") locales, compensate
 768                     // for it ourselves by simply consuming and ignoring it
 769                     while ( *result && (*result >= 'A' && *result <= 'Z') )
 770                         result++;
 771
 772                     WX_ASSERT_MESSAGE(
 773                         ("Test #%u failed: \"%s\" was left unparsed in \"%s\"",
 774                          n, result, s),
 775                         !*result
 776                     );
 777
 778                     // Without "%z" we can't recover the time zone used in the
 779                     // call to Format() so we need to call MakeFromTimezone()
 780                     // explicitly.
 781                     if ( !strstr(fmt, "%z") && !isLocalTz )
 782                         dt2.MakeFromTimezone(tz);
 783
 784                     switch ( kind )
 785                     {
 786                         case CompareYear:
 787                             if ( dt2.GetCentury() != dt.GetCentury() )
 788                             {
 789                                 CPPUNIT_ASSERT_EQUAL(dt.GetYear() % 100,
 790                                                      dt2.GetYear() % 100);
 791
 792                                 dt2.SetYear(dt.GetYear());
 793                             }
 794                             // fall through and compare everything
 795
 796                         case CompareBoth:
 797                             CPPUNIT_ASSERT_EQUAL( dt, dt2 );
 798                             break;
 799
 800                         case CompareDate:
 801                             CPPUNIT_ASSERT( dt.IsSameDate(dt2) );
 802                             break;
 803
 804                         case CompareTime:
 805                             CPPUNIT_ASSERT( dt.IsSameTime(dt2) );
 806                             break;
 807
 808                         case CompareNone:
 809                             wxFAIL_MSG( wxT("unexpected") );
 810                             break;
 811                     }
 812                 }
 813             }
 814         }
 815     }
 816
 817     wxDateTime dt;
 818
 819 #if 0
 820     // special case which was known to fail
 821     CPPUNIT_ASSERT( dt.ParseFormat("02/06/1856", "%x") );
 822     CPPUNIT_ASSERT_EQUAL( 1856, dt.GetYear() );
 823 #endif
 824
 825     // also test %l separately
 826     CPPUNIT_ASSERT( dt.ParseFormat("12:23:45.678", "%H:%M:%S.%l") );
 827     CPPUNIT_ASSERT_EQUAL( 678, dt.GetMillisecond() );
 828
 829     // test special case of %l matching 0 milliseconds
 830     CPPUNIT_ASSERT( dt.ParseFormat("12:23:45.000", "%H:%M:%S.%l") );
 831     CPPUNIT_ASSERT_EQUAL( 0, dt.GetMillisecond() );
 832
 833     // test partially specified dates too
 834     wxDateTime dtDef(26, wxDateTime::Sep, 2008);
 835     CPPUNIT_ASSERT( dt.ParseFormat("17", "%d") );
 836     CPPUNIT_ASSERT_EQUAL( 17, dt.GetDay() );
 837
 838     // test some degenerate cases
 839     CPPUNIT_ASSERT( !dt.ParseFormat("", "%z") );
 840     CPPUNIT_ASSERT( !dt.ParseFormat("", "%%") );
 841
 842     // test compilation of some calls which should compile (and not result in
 843     // ambiguity because of char*<->wxCStrData<->wxString conversions)
 844     wxString s("foo");
 845     CPPUNIT_ASSERT( !dt.ParseFormat("foo") );
 846     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo")) );
 847     CPPUNIT_ASSERT( !dt.ParseFormat(s) );
 848     dt.ParseFormat(s.c_str()); // Simply test compilation of this one.
 849
 850     CPPUNIT_ASSERT( !dt.ParseFormat("foo", "%c") );
 851     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), "%c") );
 852     CPPUNIT_ASSERT( !dt.ParseFormat(s, "%c") );
 853     dt.ParseFormat(s.c_str(), "%c");
 854
 855     CPPUNIT_ASSERT( !dt.ParseFormat("foo", wxT("%c")) );
 856     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), wxT("%c")) );
 857     CPPUNIT_ASSERT( !dt.ParseFormat(s, "%c") );
 858     dt.ParseFormat(s.c_str(), wxT("%c"));
 859
 860     wxString spec("%c");
 861     CPPUNIT_ASSERT( !dt.ParseFormat("foo", spec) );
 862     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), spec) );
 863     CPPUNIT_ASSERT( !dt.ParseFormat(s, spec) );
 864     dt.ParseFormat(s.c_str(), spec);
 865 }
 866
 867 // Test parsing time in free format.
 868 void DateTimeTestCase::TestTimeParse()
 869 {
 870     wxDateTime dt;
 871
 872     // Parsing standard formats should work.
 873     CPPUNIT_ASSERT( dt.ParseTime("12:34:56") );
 874     CPPUNIT_ASSERT_EQUAL( "12:34:56", dt.FormatISOTime() );
 875
 876     // Parsing just hours should work too.
 877     dt.ResetTime();
 878     CPPUNIT_ASSERT( dt.ParseTime("17") );
 879     CPPUNIT_ASSERT_EQUAL( "17:00:00", dt.FormatISOTime() );
 880
 881     // Parsing gibberish shouldn't work.
 882     CPPUNIT_ASSERT( !dt.ParseTime("bloordyblop") );
 883 }
 884
 885 void DateTimeTestCase::TestTimeSpanFormat()
 886 {
 887     static const struct TimeSpanFormatTestData
 888     {
 889         long h, min, sec, msec;
 890         const char *fmt;
 891         const char *result;
 892     } testSpans[] =
 893     {
 894         {   12, 34, 56, 789, "%H:%M:%S.%l",   "12:34:56.789"          },
 895         {    1,  2,  3,   0, "%H:%M:%S",      "01:02:03"              },
 896         {    1,  2,  3,   0, "%S",            "3723"                  },
 897         {   -1, -2, -3,   0, "%S",            "-3723"                 },
 898         {   -1, -2, -3,   0, "%H:%M:%S",      "-01:02:03"             },
 899         {   26,  0,  0,   0, "%H",            "26"                    },
 900         {   26,  0,  0,   0, "%D, %H",        "1, 02"                 },
 901         {  -26,  0,  0,   0, "%H",            "-26"                   },
 902         {  -26,  0,  0,   0, "%D, %H",        "-1, 02"                },
 903         {  219,  0,  0,   0, "%H",            "219"                   },
 904         {  219,  0,  0,   0, "%D, %H",        "9, 03"                 },
 905         {  219,  0,  0,   0, "%E, %D, %H",    "1, 2, 03"              },
 906         {    0, -1,  0,   0, "%H:%M:%S",      "-00:01:00"             },
 907         {    0,  0, -1,   0, "%H:%M:%S",      "-00:00:01"             },
 908     };
 909
 910     for ( size_t n = 0; n < WXSIZEOF(testSpans); n++ )
 911     {
 912         const TimeSpanFormatTestData& td = testSpans[n];
 913         wxTimeSpan ts(td.h, td.min, td.sec, td.msec);
 914         CPPUNIT_ASSERT_EQUAL( td.result, ts.Format(td.fmt) );
 915     }
 916 }
 917
 918 void DateTimeTestCase::TestTimeTicks()
 919 {
 920     static const wxDateTime::TimeZone TZ_LOCAL(wxDateTime::Local);
 921     static const wxDateTime::TimeZone TZ_TEST(wxDateTime::NZST);
 922
 923     // this offset is needed to make the test work in any time zone when we
 924     // only have expected test results in UTC in testDates
 925     static const long tzOffset = TZ_LOCAL.GetOffset() - TZ_TEST.GetOffset();
 926
 927     for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
 928     {
 929         const Date& d = testDates[n];
 930         if ( d.gmticks == -1 )
 931             continue;
 932
 933         wxDateTime dt = d.DT().MakeTimezone(TZ_TEST, true /* no DST */);
 934
 935         // GetValue() returns internal UTC-based representation, we need to
 936         // convert it to local TZ before comparing
 937         time_t ticks = (dt.GetValue() / 1000).ToLong() + TZ_LOCAL.GetOffset();
 938         if ( dt.IsDST() )
 939             ticks += 3600;
 940         CPPUNIT_ASSERT_EQUAL( d.gmticks, ticks + tzOffset );
 941
 942         dt = d.DT().FromTimezone(wxDateTime::UTC);
 943         ticks = (dt.GetValue() / 1000).ToLong();
 944         CPPUNIT_ASSERT_EQUAL( d.gmticks, ticks );
 945     }
 946 }
 947
 948 // test parsing dates in RFC822 format
 949 void DateTimeTestCase::TestParceRFC822()
 950 {
 951     static const struct ParseTestData
 952     {
 953         const char *rfc822;
 954         Date date;              // NB: this should be in UTC
 955         bool good;
 956     } parseTestDates[] =
 957     {
 958         {
 959             "Sat, 18 Dec 1999 00:46:40 +0100",
 960             { 17, wxDateTime::Dec, 1999, 23, 46, 40 },
 961             true
 962         },
 963         {
 964             "Wed, 1 Dec 1999 05:17:20 +0300",
 965             {  1, wxDateTime::Dec, 1999, 2, 17, 20 },
 966             true
 967         },
 968         {
 969             "Sun, 28 Aug 2005 03:31:30 +0200",
 970             { 28, wxDateTime::Aug, 2005, 1, 31, 30 },
 971             true
 972         },
 973
 974         {
 975             "Sat, 18 Dec 1999 10:48:30 -0500",
 976             { 18, wxDateTime::Dec, 1999, 15, 48, 30 },
 977             true
 978         },
 979
 980         // seconds are optional according to the RFC
 981         {
 982             "Sun, 01 Jun 2008 16:30 +0200",
 983             {  1, wxDateTime::Jun, 2008, 14, 30, 00 },
 984             true
 985         },
 986
 987         // try some bogus ones too
 988         {
 989             "Sun, 01 Jun 2008 16:30: +0200",
 990             { 0 },
 991             false
 992         },
 993     };
 994
 995     for ( unsigned n = 0; n < WXSIZEOF(parseTestDates); n++ )
 996     {
 997         const char * const datestr = parseTestDates[n].rfc822;
 998
 999         wxDateTime dt;
1000         if ( dt.ParseRfc822Date(datestr) )
1001         {
1002             WX_ASSERT_MESSAGE(
1003                 ("Erroneously parsed \"%s\"", datestr),
1004                 parseTestDates[n].good
1005             );
1006
1007             wxDateTime dtReal = parseTestDates[n].date.DT().FromUTC();
1008             CPPUNIT_ASSERT_EQUAL( dtReal, dt );
1009         }
1010         else // failed to parse
1011         {
1012             WX_ASSERT_MESSAGE(
1013                 ("Failed to parse \"%s\"", datestr),
1014                 !parseTestDates[n].good
1015             );
1016         }
1017     }
1018 }
1019
1020 // test parsing dates in free format
1021 void DateTimeTestCase::TestDateParse()
1022 {
1023     static const struct ParseTestData
1024     {
1025         const char *str;
1026         Date date;              // NB: this should be in UTC
1027         bool good;
1028     } parseTestDates[] =
1029     {
1030         { "21 Mar 2006", { 21, wxDateTime::Mar, 2006 }, true },
1031         { "29 Feb 1976", { 29, wxDateTime::Feb, 1976 }, true },
1032         { "Feb 29 1976", { 29, wxDateTime::Feb, 1976 }, true },
1033         { "31/03/06",    { 31, wxDateTime::Mar,    6 }, true },
1034         { "31/03/2006",  { 31, wxDateTime::Mar, 2006 }, true },
1035
1036         // some invalid ones too
1037         { "29 Feb 2006" },
1038         { "31/04/06" },
1039         { "bloordyblop" },
1040         { "2 .  .    " },
1041     };
1042
1043     // special cases
1044     wxDateTime dt;
1045     CPPUNIT_ASSERT( dt.ParseDate(wxT("today")) );
1046     CPPUNIT_ASSERT_EQUAL( wxDateTime::Today(), dt );
1047
1048     for ( size_t n = 0; n < WXSIZEOF(parseTestDates); n++ )
1049     {
1050         const wxString datestr = TranslateDate(parseTestDates[n].str);
1051
1052         const char * const end = dt.ParseDate(datestr);
1053         if ( end && !*end )
1054         {
1055             WX_ASSERT_MESSAGE(
1056                 ("Erroneously parsed \"%s\"", datestr),
1057                 parseTestDates[n].good
1058             );
1059
1060             CPPUNIT_ASSERT_EQUAL( parseTestDates[n].date.DT(), dt );
1061         }
1062         else // failed to parse
1063         {
1064             WX_ASSERT_MESSAGE(
1065                 ("Failed to parse \"%s\"", datestr),
1066                 !parseTestDates[n].good
1067             );
1068         }
1069     }
1070
1071     // Check that incomplete parse works correctly.
1072     const char* p = dt.ParseFormat("2012-03-23 12:34:56", "%Y-%m-%d");
1073     CPPUNIT_ASSERT_EQUAL( " 12:34:56", wxString(p) );
1074 }
1075
1076 void DateTimeTestCase::TestDateParseISO()
1077 {
1078     static const struct
1079     {
1080         const char *str;
1081         Date date;              // NB: this should be in UTC
1082         bool good;
1083     } parseTestDates[] =
1084     {
1085         { "2006-03-21", { 21, wxDateTime::Mar, 2006 }, true },
1086         { "1976-02-29", { 29, wxDateTime::Feb, 1976 }, true },
1087         { "0006-03-31", { 31, wxDateTime::Mar,    6 }, true },
1088
1089         // some invalid ones too
1090         { "2006:03:31" },
1091         { "31/04/06" },
1092         { "bloordyblop" },
1093         { "" },
1094     };
1095
1096     static const struct
1097     {
1098         const char *str;
1099         wxDateTime::wxDateTime_t hour, min, sec;
1100         bool good;
1101     } parseTestTimes[] =
1102     {
1103         { "13:42:17", 13, 42, 17, true },
1104         { "02:17:01",  2, 17,  1, true },
1105
1106         // some invalid ones too
1107         { "66:03:31" },
1108         { "31/04/06" },
1109         { "bloordyblop" },
1110         { "" },
1111     };
1112
1113     for ( size_t n = 0; n < WXSIZEOF(parseTestDates); n++ )
1114     {
1115         wxDateTime dt;
1116         if ( dt.ParseISODate(parseTestDates[n].str) )
1117         {
1118             CPPUNIT_ASSERT( parseTestDates[n].good );
1119
1120             CPPUNIT_ASSERT_EQUAL( parseTestDates[n].date.DT(), dt );
1121
1122             for ( size_t m = 0; m < WXSIZEOF(parseTestTimes); m++ )
1123             {
1124                 wxString dtCombined;
1125                 dtCombined << parseTestDates[n].str
1126                            << 'T'
1127                            << parseTestTimes[m].str;
1128
1129                 if ( dt.ParseISOCombined(dtCombined) )
1130                 {
1131                     CPPUNIT_ASSERT( parseTestTimes[m].good );
1132
1133                     CPPUNIT_ASSERT_EQUAL( parseTestTimes[m].hour, dt.GetHour()) ;
1134                     CPPUNIT_ASSERT_EQUAL( parseTestTimes[m].min, dt.GetMinute()) ;
1135                     CPPUNIT_ASSERT_EQUAL( parseTestTimes[m].sec, dt.GetSecond()) ;
1136                 }
1137                 else // failed to parse combined date/time
1138                 {
1139                     CPPUNIT_ASSERT( !parseTestTimes[m].good );
1140                 }
1141             }
1142         }
1143         else // failed to parse
1144         {
1145             CPPUNIT_ASSERT( !parseTestDates[n].good );
1146         }
1147     }
1148 }
1149
1150 void DateTimeTestCase::TestDateTimeParse()
1151 {
1152     static const struct ParseTestData
1153     {
1154         const char *str;
1155         Date date;              // NB: this should be in UTC
1156         bool good;
1157     } parseTestDates[] =
1158     {
1159         {
1160             "Thu 22 Nov 2007 07:40:00 PM",
1161             { 22, wxDateTime::Nov, 2007, 19, 40,  0 },
1162             true
1163         },
1164
1165         {
1166             "2010-01-04 14:30",
1167             {  4, wxDateTime::Jan, 2010, 14, 30,  0 },
1168             true
1169         },
1170
1171         {
1172             "bloordyblop",
1173             {  1, wxDateTime::Jan, 9999,  0,  0,  0},
1174             false
1175         },
1176
1177         {
1178             "2012-01-01 10:12:05 +0100",
1179             {  1, wxDateTime::Jan, 2012,  10,  12,  5, -1 },
1180             false // ParseDateTime does know yet +0100
1181         },
1182     };
1183
1184     // the test strings here use "PM" which is not available in all locales so
1185     // we need to use "C" locale for them
1186     CLocaleSetter cloc;
1187
1188     wxDateTime dt;
1189     for ( size_t n = 0; n < WXSIZEOF(parseTestDates); n++ )
1190     {
1191         const wxString datestr = TranslateDate(parseTestDates[n].str);
1192
1193         const char * const end = dt.ParseDateTime(datestr);
1194         if ( end && !*end )
1195         {
1196             WX_ASSERT_MESSAGE(
1197                 ("Erroneously parsed \"%s\"", datestr),
1198                 parseTestDates[n].good
1199             );
1200
1201             CPPUNIT_ASSERT_EQUAL( parseTestDates[n].date.DT(), dt );
1202         }
1203         else // failed to parse
1204         {
1205             WX_ASSERT_MESSAGE(
1206                 ("Failed to parse \"%s\"", datestr),
1207                 !parseTestDates[n].good
1208             );
1209
1210             CPPUNIT_ASSERT( !parseTestDates[n].good );
1211         }
1212     }
1213 }
1214
1215 void DateTimeTestCase::TestTimeArithmetics()
1216 {
1217     static const wxDateSpan testArithmData[] =
1218     {
1219         wxDateSpan::Day(),
1220         wxDateSpan::Week(),
1221         wxDateSpan::Month(),
1222         wxDateSpan::Year(),
1223     };
1224
1225     // the test will *not* work with arbitrary date!
1226     wxDateTime dt(2, wxDateTime::Dec, 1999),
1227                dt1,
1228                dt2;
1229
1230     for ( size_t n = 0; n < WXSIZEOF(testArithmData); n++ )
1231     {
1232         const wxDateSpan& span = testArithmData[n];
1233         dt1 = dt + span;
1234         dt2 = dt - span;
1235
1236         CPPUNIT_ASSERT_EQUAL( dt, dt1 - span );
1237         CPPUNIT_ASSERT_EQUAL( dt, dt2 + span );
1238         CPPUNIT_ASSERT_EQUAL( dt1, dt2 + 2*span );
1239         CPPUNIT_ASSERT_EQUAL( span, dt1.DiffAsDateSpan(dt) );
1240     }
1241
1242     // More date span arithmetics tests
1243     wxDateTime dtd1(5, wxDateTime::Jun, 1998);
1244     wxDateTime dtd2(6, wxDateTime::Aug, 1999);
1245
1246     // All parts in dtd2 is after dtd1
1247     CPPUNIT_ASSERT_EQUAL( wxDateSpan(1, 2, 0, 1), dtd2.DiffAsDateSpan(dtd1) );
1248
1249     // Year and month after, day earlier, so no full month
1250     // Jul has 31 days, so it's 31 - 5 + 4 = 30, or 4w 2d
1251     dtd2.Set(4, wxDateTime::Aug, 1999);
1252     CPPUNIT_ASSERT_EQUAL( wxDateSpan(1, 1, 4, 2), dtd2.DiffAsDateSpan(dtd1) );
1253
1254     // Year and day after, month earlier, so no full year, but same day diff as
1255     // first example
1256     dtd2.Set(6, wxDateTime::May, 1999);
1257     CPPUNIT_ASSERT_EQUAL( wxDateSpan(0, 11, 0, 1), dtd2.DiffAsDateSpan(dtd1) );
1258
1259     // Year after, month and day earlier, so no full month and no full year
1260     // April has 30 days, so it's 30 - 5 + 4 = 29, or 4w 1d
1261     dtd2.Set(4, wxDateTime::May, 1999);
1262     CPPUNIT_ASSERT_EQUAL( wxDateSpan(0, 10, 4, 1), dtd2.DiffAsDateSpan(dtd1) );
1263
1264     // And a reverse. Now we should use days in Jun (again 30 => 4w 1d)
1265     CPPUNIT_ASSERT_EQUAL( wxDateSpan(0, -10, -4, -1), dtd1.DiffAsDateSpan(dtd2) );
1266 }
1267
1268 void DateTimeTestCase::TestDSTBug()
1269 {
1270     /////////////////////////
1271     // Test GetEndDST()
1272     wxDateTime dt = wxDateTime::GetEndDST(2004, wxDateTime::France);
1273     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1274     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1275     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1276     CPPUNIT_ASSERT_EQUAL(1, (int)dt.GetHour());
1277     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
1278     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1279     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1280
1281     /////////////////////////
1282     // Test ResetTime()
1283     dt.SetHour(5);
1284     CPPUNIT_ASSERT_EQUAL(5, (int)dt.GetHour());
1285     dt.ResetTime();
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     dt.Set(1, 0, 0, 0);
1295     CPPUNIT_ASSERT_EQUAL(1, (int)dt.GetHour());
1296
1297     /////////////////////////
1298     // Test Today()
1299 #ifdef CHANGE_SYSTEM_DATE
1300     {
1301         DateChanger change(2004, 10, 31, 5, 0, 0);
1302         dt = wxDateTime::Today();
1303     }
1304
1305     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1306     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1307     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1308     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetHour());
1309     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
1310     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1311     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1312
1313     /////////////////////////
1314     // Test Set(hour, minute, second, milli)
1315     wxDateTime dt2;
1316     {
1317         DateChanger change(2004, 10, 31, 5, 0, 0);
1318         dt.Set(1, 30, 0, 0);
1319         dt2.Set(5, 30, 0, 0);
1320     }
1321
1322     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1323     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1324     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1325     CPPUNIT_ASSERT_EQUAL(1, (int)dt.GetHour());
1326     CPPUNIT_ASSERT_EQUAL(30, (int)dt.GetMinute());
1327     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1328     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1329
1330     CPPUNIT_ASSERT_EQUAL(31, (int)dt2.GetDay());
1331     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt2.GetMonth());
1332     CPPUNIT_ASSERT_EQUAL(2004, (int)dt2.GetYear());
1333     CPPUNIT_ASSERT_EQUAL(5, (int)dt2.GetHour());
1334     CPPUNIT_ASSERT_EQUAL(30, (int)dt2.GetMinute());
1335     CPPUNIT_ASSERT_EQUAL(0, (int)dt2.GetSecond());
1336     CPPUNIT_ASSERT_EQUAL(0, (int)dt2.GetMillisecond());
1337 #endif // CHANGE_SYSTEM_DATE
1338
1339     // Verify that setting the date to the beginning of the DST period moves it
1340     // forward (as this date on its own would be invalid). The problem here is
1341     // that our GetBeginDST() is far from being trustworthy, so just try a
1342     // couple of dates for the common time zones and check that all of them are
1343     // either unchanged or moved forward.
1344     wxDateTime dtDST(10, wxDateTime::Mar, 2013, 2, 0, 0);
1345     if ( dtDST.GetHour() != 2 )
1346         CPPUNIT_ASSERT_EQUAL( 3, dtDST.GetHour() );
1347
1348     dtDST = wxDateTime(31, wxDateTime::Mar, 2013, 2, 0, 0);
1349     if ( dtDST.GetHour() != 2 )
1350         CPPUNIT_ASSERT_EQUAL( 3, dtDST.GetHour() );
1351 }
1352
1353 void DateTimeTestCase::TestDateOnly()
1354 {
1355     wxDateTime dt(19, wxDateTime::Jan, 2007, 15, 01, 00);
1356
1357     static const wxDateTime::wxDateTime_t DATE_ZERO = 0;
1358     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetHour() );
1359     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetMinute() );
1360     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetSecond() );
1361     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetMillisecond() );
1362
1363     dt.ResetTime();
1364     CPPUNIT_ASSERT_EQUAL( wxDateTime(19, wxDateTime::Jan, 2007), dt );
1365
1366     CPPUNIT_ASSERT_EQUAL( wxDateTime::Today(), wxDateTime::Now().GetDateOnly() );
1367 }
1368
1369 #endif // wxUSE_DATETIME