tests/datetime/datetimetest.cpp

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