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
  27 // need this to be able to use CPPUNIT_ASSERT_EQUAL with wxDateTime objects
  28 static std::ostream& operator<<(std::ostream& ostr, const wxDateTime& dt)
  29 {
  30     ostr << dt.FormatISOCombined(' ');
  31
  32     return ostr;
  33 }
  34
  35 // to test Today() meaningfully we must be able to change the system date which
  36 // is not usually the case, but if we're under Win32 we can try it -- define
  37 // the macro below to do it
  38 //#define CHANGE_SYSTEM_DATE
  39
  40 #ifndef __WINDOWS__
  41     #undef CHANGE_SYSTEM_DATE
  42 #endif
  43
  44 #ifdef CHANGE_SYSTEM_DATE
  45
  46 class DateChanger
  47 {
  48 public:
  49     DateChanger(int year, int month, int day, int hour, int min, int sec)
  50     {
  51         SYSTEMTIME st;
  52         st.wDay = day;
  53         st.wMonth = month;
  54         st.wYear = year;
  55         st.wHour = hour;
  56         st.wMinute = min;
  57         st.wSecond = sec;
  58         st.wMilliseconds = 0;
  59
  60         ::GetSystemTime(&m_savedTime);
  61         ::GetTimeZoneInformation(&m_tzi);
  62
  63         m_changed = ::SetSystemTime(&st) != 0;
  64     }
  65
  66     ~DateChanger()
  67     {
  68         if ( m_changed )
  69         {
  70             ::SetSystemTime(&m_savedTime);
  71             ::SetTimeZoneInformation(&m_tzi);
  72         }
  73     }
  74
  75 private:
  76     SYSTEMTIME m_savedTime;
  77     TIME_ZONE_INFORMATION m_tzi;
  78     bool m_changed;
  79 };
  80
  81 #endif // CHANGE_SYSTEM_DATE
  82
  83 // ----------------------------------------------------------------------------
  84 // broken down date representation used for testing
  85 // ----------------------------------------------------------------------------
  86
  87 struct Date
  88 {
  89     wxDateTime::wxDateTime_t day;
  90     wxDateTime::Month month;
  91     int year;
  92     wxDateTime::wxDateTime_t hour, min, sec;
  93     double jdn;
  94     wxDateTime::WeekDay wday;
  95     time_t gmticks;
  96
  97     void Init(const wxDateTime::Tm& tm)
  98     {
  99         day = tm.mday;
 100         month = tm.mon;
 101         year = tm.year;
 102         hour = tm.hour;
 103         min = tm.min;
 104         sec = tm.sec;
 105         jdn = 0.0;
 106         gmticks = -1;
 107     }
 108
 109     wxDateTime DT() const
 110         { return wxDateTime(day, month, year, hour, min, sec); }
 111
 112     bool SameDay(const wxDateTime::Tm& tm) const
 113     {
 114         return day == tm.mday && month == tm.mon && year == tm.year;
 115     }
 116
 117     wxString Format() const
 118     {
 119         wxString s;
 120         s.Printf(_T("%02d:%02d:%02d %10s %02d, %4d%s"),
 121                  hour, min, sec,
 122                  wxDateTime::GetMonthName(month).c_str(),
 123                  day,
 124                  abs(wxDateTime::ConvertYearToBC(year)),
 125                  year > 0 ? _T("AD") : _T("BC"));
 126         return s;
 127     }
 128
 129     wxString FormatDate() const
 130     {
 131         wxString s;
 132         s.Printf(_T("%02d-%s-%4d%s"),
 133                  day,
 134                  wxDateTime::GetMonthName(month, wxDateTime::Name_Abbr).c_str(),
 135                  abs(wxDateTime::ConvertYearToBC(year)),
 136                  year > 0 ? _T("AD") : _T("BC"));
 137         return s;
 138     }
 139 };
 140
 141 // ----------------------------------------------------------------------------
 142 // test data
 143 // ----------------------------------------------------------------------------
 144
 145 static const Date testDates[] =
 146 {
 147     {  1, wxDateTime::Jan,  1970, 00, 00, 00, 2440587.5, wxDateTime::Thu,         0 },
 148     {  7, wxDateTime::Feb,  2036, 00, 00, 00, 2464730.5, wxDateTime::Thu,        -1 },
 149     {  8, wxDateTime::Feb,  2036, 00, 00, 00, 2464731.5, wxDateTime::Fri,        -1 },
 150     {  1, wxDateTime::Jan,  2037, 00, 00, 00, 2465059.5, wxDateTime::Thu,        -1 },
 151     {  1, wxDateTime::Jan,  2038, 00, 00, 00, 2465424.5, wxDateTime::Fri,        -1 },
 152     { 21, wxDateTime::Jan,  2222, 00, 00, 00, 2532648.5, wxDateTime::Mon,        -1 },
 153     { 29, wxDateTime::May,  1976, 12, 00, 00, 2442928.0, wxDateTime::Sat, 202219200 },
 154     { 29, wxDateTime::Feb,  1976, 00, 00, 00, 2442837.5, wxDateTime::Sun, 194400000 },
 155     {  1, wxDateTime::Jan,  1900, 12, 00, 00, 2415021.0, wxDateTime::Mon,        -1 },
 156     {  1, wxDateTime::Jan,  1900, 00, 00, 00, 2415020.5, wxDateTime::Mon,        -1 },
 157     { 15, wxDateTime::Oct,  1582, 00, 00, 00, 2299160.5, wxDateTime::Fri,        -1 },
 158     {  4, wxDateTime::Oct,  1582, 00, 00, 00, 2299149.5, wxDateTime::Mon,        -1 },
 159     {  1, wxDateTime::Mar,     1, 00, 00, 00, 1721484.5, wxDateTime::Thu,        -1 },
 160     {  1, wxDateTime::Jan,     1, 00, 00, 00, 1721425.5, wxDateTime::Mon,        -1 },
 161     { 31, wxDateTime::Dec,     0, 00, 00, 00, 1721424.5, wxDateTime::Sun,        -1 },
 162     {  1, wxDateTime::Jan,     0, 00, 00, 00, 1721059.5, wxDateTime::Sat,        -1 },
 163     { 12, wxDateTime::Aug, -1234, 00, 00, 00, 1270573.5, wxDateTime::Fri,        -1 },
 164     { 12, wxDateTime::Aug, -4000, 00, 00, 00,  260313.5, wxDateTime::Sat,        -1 },
 165     { 24, wxDateTime::Nov, -4713, 00, 00, 00,      -0.5, wxDateTime::Mon,        -1 },
 166 };
 167
 168
 169 // ----------------------------------------------------------------------------
 170 // test class
 171 // ----------------------------------------------------------------------------
 172
 173 class DateTimeTestCase : public CppUnit::TestCase
 174 {
 175 public:
 176     DateTimeTestCase() { }
 177
 178 private:
 179     CPPUNIT_TEST_SUITE( DateTimeTestCase );
 180         CPPUNIT_TEST( TestLeapYears );
 181         CPPUNIT_TEST( TestTimeSet );
 182         CPPUNIT_TEST( TestTimeJDN );
 183         CPPUNIT_TEST( TestTimeWNumber );
 184         CPPUNIT_TEST( TestTimeWDays );
 185         CPPUNIT_TEST( TestTimeDST );
 186         CPPUNIT_TEST( TestTimeFormat );
 187         CPPUNIT_TEST( TestTimeSpanFormat );
 188         CPPUNIT_TEST( TestTimeTicks );
 189         CPPUNIT_TEST( TestParceRFC822 );
 190         CPPUNIT_TEST( TestDateParse );
 191         CPPUNIT_TEST( TestDateParseISO );
 192         CPPUNIT_TEST( TestDateTimeParse );
 193         CPPUNIT_TEST( TestTimeArithmetics );
 194         CPPUNIT_TEST( TestDSTBug );
 195         CPPUNIT_TEST( TestDateOnly );
 196     CPPUNIT_TEST_SUITE_END();
 197
 198     void TestLeapYears();
 199     void TestTimeSet();
 200     void TestTimeJDN();
 201     void TestTimeWNumber();
 202     void TestTimeWDays();
 203     void TestTimeDST();
 204     void TestTimeFormat();
 205     void TestTimeSpanFormat();
 206     void TestTimeTicks();
 207     void TestParceRFC822();
 208     void TestDateParse();
 209     void TestDateParseISO();
 210     void TestDateTimeParse();
 211     void TestTimeArithmetics();
 212     void TestDSTBug();
 213     void TestDateOnly();
 214
 215     DECLARE_NO_COPY_CLASS(DateTimeTestCase)
 216 };
 217
 218 // register in the unnamed registry so that these tests are run by default
 219 CPPUNIT_TEST_SUITE_REGISTRATION( DateTimeTestCase );
 220
 221 // also include in it's own registry so that these tests can be run alone
 222 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( DateTimeTestCase, "DateTimeTestCase" );
 223
 224 // ============================================================================
 225 // implementation
 226 // ============================================================================
 227
 228 // test leap years detection
 229 void DateTimeTestCase::TestLeapYears()
 230 {
 231     static const struct LeapYearTestData
 232     {
 233         int year;
 234         bool isLeap;
 235     } years[] =
 236     {
 237         { 1900, false },
 238         { 1990, false },
 239         { 1976, true },
 240         { 2000, true },
 241         { 2030, false },
 242         { 1984, true },
 243         { 2100, false },
 244         { 2400, true },
 245     };
 246
 247     for ( size_t n = 0; n < WXSIZEOF(years); n++ )
 248     {
 249         const LeapYearTestData& y = years[n];
 250
 251         CPPUNIT_ASSERT( wxDateTime::IsLeapYear(y.year) == y.isLeap );
 252     }
 253 }
 254
 255 // test constructing wxDateTime objects
 256 void DateTimeTestCase::TestTimeSet()
 257 {
 258     for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
 259     {
 260         const Date& d1 = testDates[n];
 261         wxDateTime dt = d1.DT();
 262
 263         Date d2;
 264         d2.Init(dt.GetTm());
 265
 266         wxString s1 = d1.Format(),
 267                  s2 = d2.Format();
 268
 269         CPPUNIT_ASSERT( s1 == s2 );
 270     }
 271 }
 272
 273 // test conversions to JDN &c
 274 void DateTimeTestCase::TestTimeJDN()
 275 {
 276     for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
 277     {
 278         const Date& d = testDates[n];
 279         wxDateTime dt(d.day, d.month, d.year, d.hour, d.min, d.sec);
 280
 281         // JDNs must be computed for UTC times
 282         double jdn = dt.FromUTC().GetJulianDayNumber();
 283
 284         CPPUNIT_ASSERT( jdn == d.jdn );
 285
 286         dt.Set(jdn);
 287         CPPUNIT_ASSERT( dt.GetJulianDayNumber() == jdn );
 288     }
 289 }
 290
 291 // test week days computation
 292 void DateTimeTestCase::TestTimeWDays()
 293 {
 294     // test GetWeekDay()
 295     size_t n;
 296     for ( n = 0; n < WXSIZEOF(testDates); n++ )
 297     {
 298         const Date& d = testDates[n];
 299         wxDateTime dt(d.day, d.month, d.year, d.hour, d.min, d.sec);
 300
 301         wxDateTime::WeekDay wday = dt.GetWeekDay();
 302         CPPUNIT_ASSERT( wday == d.wday );
 303     }
 304
 305     // test SetToWeekDay()
 306     struct WeekDateTestData
 307     {
 308         Date date;                  // the real date (precomputed)
 309         int nWeek;                  // its week index in the month
 310         wxDateTime::WeekDay wday;   // the weekday
 311         wxDateTime::Month month;    // the month
 312         int year;                   // and the year
 313
 314         wxString Format() const
 315         {
 316             wxString s, which;
 317             switch ( nWeek < -1 ? -nWeek : nWeek )
 318             {
 319                 case 1: which = _T("first"); break;
 320                 case 2: which = _T("second"); break;
 321                 case 3: which = _T("third"); break;
 322                 case 4: which = _T("fourth"); break;
 323                 case 5: which = _T("fifth"); break;
 324
 325                 case -1: which = _T("last"); break;
 326             }
 327
 328             if ( nWeek < -1 )
 329             {
 330                 which += _T(" from end");
 331             }
 332
 333             s.Printf(_T("The %s %s of %s in %d"),
 334                      which.c_str(),
 335                      wxDateTime::GetWeekDayName(wday).c_str(),
 336                      wxDateTime::GetMonthName(month).c_str(),
 337                      year);
 338
 339             return s;
 340         }
 341     };
 342
 343     // the array data was generated by the following python program
 344     /*
 345 from DateTime import *
 346 from whrandom import *
 347 from string import *
 348
 349 monthNames = [ 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' ]
 350 wdayNames = [ 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun' ]
 351
 352 week = DateTimeDelta(7)
 353
 354 for n in range(20):
 355     year = randint(1900, 2100)
 356     month = randint(1, 12)
 357     day = randint(1, 28)
 358     dt = DateTime(year, month, day)
 359     wday = dt.day_of_week
 360
 361     countFromEnd = choice([-1, 1])
 362     weekNum = 0;
 363
 364     while dt.month is month:
 365         dt = dt - countFromEnd * week
 366         weekNum = weekNum + countFromEnd
 367
 368     data = { 'day': rjust(`day`, 2), 'month': monthNames[month - 1], 'year': year, 'weekNum': rjust(`weekNum`, 2), 'wday': wdayNames[wday] }
 369
 370     print "{ { %(day)s, wxDateTime::%(month)s, %(year)d }, %(weekNum)d, "\
 371           "wxDateTime::%(wday)s, wxDateTime::%(month)s, %(year)d }," % data
 372     */
 373
 374     static const WeekDateTestData weekDatesTestData[] =
 375     {
 376         { { 20, wxDateTime::Mar, 2045, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  3, wxDateTime::Mon, wxDateTime::Mar, 2045 },
 377         { {  5, wxDateTime::Jun, 1985, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -4, wxDateTime::Wed, wxDateTime::Jun, 1985 },
 378         { { 12, wxDateTime::Nov, 1961, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -3, wxDateTime::Sun, wxDateTime::Nov, 1961 },
 379         { { 27, wxDateTime::Feb, 2093, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -1, wxDateTime::Fri, wxDateTime::Feb, 2093 },
 380         { {  4, wxDateTime::Jul, 2070, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -4, wxDateTime::Fri, wxDateTime::Jul, 2070 },
 381         { {  2, wxDateTime::Apr, 1906, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -5, wxDateTime::Mon, wxDateTime::Apr, 1906 },
 382         { { 19, wxDateTime::Jul, 2023, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -2, wxDateTime::Wed, wxDateTime::Jul, 2023 },
 383         { {  5, wxDateTime::May, 1958, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -4, wxDateTime::Mon, wxDateTime::May, 1958 },
 384         { { 11, wxDateTime::Aug, 1900, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  2, wxDateTime::Sat, wxDateTime::Aug, 1900 },
 385         { { 14, wxDateTime::Feb, 1945, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  2, wxDateTime::Wed, wxDateTime::Feb, 1945 },
 386         { { 25, wxDateTime::Jul, 1967, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -1, wxDateTime::Tue, wxDateTime::Jul, 1967 },
 387         { {  9, wxDateTime::May, 1916, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -4, wxDateTime::Tue, wxDateTime::May, 1916 },
 388         { { 20, wxDateTime::Jun, 1927, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  3, wxDateTime::Mon, wxDateTime::Jun, 1927 },
 389         { {  2, wxDateTime::Aug, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, wxDateTime::Wed, wxDateTime::Aug, 2000 },
 390         { { 20, wxDateTime::Apr, 2044, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  3, wxDateTime::Wed, wxDateTime::Apr, 2044 },
 391         { { 20, wxDateTime::Feb, 1932, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -2, wxDateTime::Sat, wxDateTime::Feb, 1932 },
 392         { { 25, wxDateTime::Jul, 2069, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  4, wxDateTime::Thu, wxDateTime::Jul, 2069 },
 393         { {  3, wxDateTime::Apr, 1925, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, wxDateTime::Fri, wxDateTime::Apr, 1925 },
 394         { { 21, wxDateTime::Mar, 2093, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  3, wxDateTime::Sat, wxDateTime::Mar, 2093 },
 395         { {  3, wxDateTime::Dec, 2074, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, -5, wxDateTime::Mon, wxDateTime::Dec, 2074 }
 396     };
 397
 398     wxDateTime dt;
 399     for ( n = 0; n < WXSIZEOF(weekDatesTestData); n++ )
 400     {
 401         const WeekDateTestData& wd = weekDatesTestData[n];
 402
 403         dt.SetToWeekDay(wd.wday, wd.nWeek, wd.month, wd.year);
 404
 405         const Date& d = wd.date;
 406         CPPUNIT_ASSERT( d.SameDay(dt.GetTm()) );
 407     }
 408 }
 409
 410 // test the computation of (ISO) week numbers
 411 void DateTimeTestCase::TestTimeWNumber()
 412 {
 413     struct WeekNumberTestData
 414     {
 415         Date date;                          // the date
 416         wxDateTime::wxDateTime_t week;      // the week number in the year
 417         wxDateTime::wxDateTime_t wmon;      // the week number in the month
 418         wxDateTime::wxDateTime_t wmon2;     // same but week starts with Sun
 419         wxDateTime::wxDateTime_t dnum;      // day number in the year
 420     };
 421
 422     // data generated with the following python script:
 423     /*
 424 from DateTime import *
 425 from whrandom import *
 426 from string import *
 427
 428 monthNames = [ 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' ]
 429 wdayNames = [ 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun' ]
 430
 431 def GetMonthWeek(dt):
 432     weekNumMonth = dt.iso_week[1] - DateTime(dt.year, dt.month, 1).iso_week[1] + 1
 433     if weekNumMonth < 0:
 434         weekNumMonth = weekNumMonth + 53
 435     return weekNumMonth
 436
 437 def GetLastSundayBefore(dt):
 438     if dt.iso_week[2] == 7:
 439         return dt
 440     else:
 441         return dt - DateTimeDelta(dt.iso_week[2])
 442
 443 for n in range(20):
 444     year = randint(1900, 2100)
 445     month = randint(1, 12)
 446     day = randint(1, 28)
 447     dt = DateTime(year, month, day)
 448     dayNum = dt.day_of_year
 449     weekNum = dt.iso_week[1]
 450     weekNumMonth = GetMonthWeek(dt)
 451
 452     weekNumMonth2 = 0
 453     dtSunday = GetLastSundayBefore(dt)
 454
 455     while dtSunday >= GetLastSundayBefore(DateTime(dt.year, dt.month, 1)):
 456         weekNumMonth2 = weekNumMonth2 + 1
 457         dtSunday = dtSunday - DateTimeDelta(7)
 458
 459     data = { 'day': rjust(`day`, 2), \
 460              'month': monthNames[month - 1], \
 461              'year': year, \
 462              'weekNum': rjust(`weekNum`, 2), \
 463              'weekNumMonth': weekNumMonth, \
 464              'weekNumMonth2': weekNumMonth2, \
 465              'dayNum': rjust(`dayNum`, 3) }
 466
 467     print "        { { %(day)s, "\
 468           "wxDateTime::%(month)s, "\
 469           "%(year)d }, "\
 470           "%(weekNum)s, "\
 471           "%(weekNumMonth)s, "\
 472           "%(weekNumMonth2)s, "\
 473           "%(dayNum)s }," % data
 474
 475     */
 476     static const WeekNumberTestData weekNumberTestDates[] =
 477     {
 478         { { 27, wxDateTime::Dec, 1966, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 52, 5, 5, 361 },
 479         { { 22, wxDateTime::Jul, 1926, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 29, 4, 4, 203 },
 480         { { 22, wxDateTime::Oct, 2076, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 43, 4, 4, 296 },
 481         { {  1, wxDateTime::Jul, 1967, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 26, 1, 1, 182 },
 482         { {  8, wxDateTime::Nov, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 46, 2, 2, 313 },
 483         { { 21, wxDateTime::Mar, 1920, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 12, 3, 4,  81 },
 484         { {  7, wxDateTime::Jan, 1965, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 2, 2,   7 },
 485         { { 19, wxDateTime::Oct, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 42, 4, 4, 292 },
 486         { { 13, wxDateTime::Aug, 1955, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 32, 2, 2, 225 },
 487         { { 18, wxDateTime::Jul, 2087, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 29, 3, 3, 199 },
 488         { {  2, wxDateTime::Sep, 2028, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 35, 1, 1, 246 },
 489         { { 28, wxDateTime::Jul, 1945, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 30, 5, 4, 209 },
 490         { { 15, wxDateTime::Jun, 1901, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 24, 3, 3, 166 },
 491         { { 10, wxDateTime::Oct, 1939, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 41, 3, 2, 283 },
 492         { {  3, wxDateTime::Dec, 1965, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 48, 1, 1, 337 },
 493         { { 23, wxDateTime::Feb, 1940, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  8, 4, 4,  54 },
 494         { {  2, wxDateTime::Jan, 1987, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 1, 1,   2 },
 495         { { 11, wxDateTime::Aug, 2079, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 32, 2, 2, 223 },
 496         { {  2, wxDateTime::Feb, 2063, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  5, 1, 1,  33 },
 497         { { 16, wxDateTime::Oct, 1942, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 }, 42, 3, 3, 289 },
 498         { { 30, wxDateTime::Dec, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 5, 5, 364 },
 499         { {  2, wxDateTime::Jan, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },  1, 1, 1,   2 },
 500     };
 501
 502     for ( size_t n = 0; n < WXSIZEOF(weekNumberTestDates); n++ )
 503     {
 504         const WeekNumberTestData& wn = weekNumberTestDates[n];
 505         const Date& d = wn.date;
 506
 507         wxDateTime dt = d.DT();
 508
 509         wxDateTime::wxDateTime_t
 510             week = dt.GetWeekOfYear(wxDateTime::Monday_First),
 511             wmon = dt.GetWeekOfMonth(wxDateTime::Monday_First),
 512             wmon2 = dt.GetWeekOfMonth(wxDateTime::Sunday_First),
 513             dnum = dt.GetDayOfYear();
 514
 515         CPPUNIT_ASSERT( dnum == wn.dnum );
 516         CPPUNIT_ASSERT( wmon == wn.wmon );
 517         CPPUNIT_ASSERT( wmon2 == wn.wmon2 );
 518         CPPUNIT_ASSERT( week == wn.week );
 519
 520         int year = d.year;
 521         if ( week == 1 && d.month != wxDateTime::Jan )
 522         {
 523             // this means we're in the first week of the next year
 524             year++;
 525         }
 526
 527         wxDateTime
 528             dt2 = wxDateTime::SetToWeekOfYear(year, week, dt.GetWeekDay());
 529         CPPUNIT_ASSERT( dt2 == dt );
 530     }
 531 }
 532
 533 // test DST applicability
 534 void DateTimeTestCase::TestTimeDST()
 535 {
 536     // taken from http://www.energy.ca.gov/daylightsaving.html
 537     static const Date datesDST[2][2004 - 1900 + 1] =
 538     {
 539         {
 540             { 1, wxDateTime::Apr, 1990, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 541             { 7, wxDateTime::Apr, 1991, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 542             { 5, wxDateTime::Apr, 1992, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 543             { 4, wxDateTime::Apr, 1993, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 544             { 3, wxDateTime::Apr, 1994, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 545             { 2, wxDateTime::Apr, 1995, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 546             { 7, wxDateTime::Apr, 1996, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 547             { 6, wxDateTime::Apr, 1997, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 548             { 5, wxDateTime::Apr, 1998, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 549             { 4, wxDateTime::Apr, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 550             { 2, wxDateTime::Apr, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 551             { 1, wxDateTime::Apr, 2001, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 552             { 7, wxDateTime::Apr, 2002, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 553             { 6, wxDateTime::Apr, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 554             { 4, wxDateTime::Apr, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 555         },
 556         {
 557             { 28, wxDateTime::Oct, 1990, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 558             { 27, wxDateTime::Oct, 1991, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 559             { 25, wxDateTime::Oct, 1992, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 560             { 31, wxDateTime::Oct, 1993, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 561             { 30, wxDateTime::Oct, 1994, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 562             { 29, wxDateTime::Oct, 1995, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 563             { 27, wxDateTime::Oct, 1996, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 564             { 26, wxDateTime::Oct, 1997, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 565             { 25, wxDateTime::Oct, 1998, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 566             { 31, wxDateTime::Oct, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 567             { 29, wxDateTime::Oct, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 568             { 28, wxDateTime::Oct, 2001, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 569             { 27, wxDateTime::Oct, 2002, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 570             { 26, wxDateTime::Oct, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 571             { 31, wxDateTime::Oct, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0 },
 572         }
 573     };
 574
 575     for ( int year = 1990; year < 2005; year++ )
 576     {
 577         wxDateTime dtBegin = wxDateTime::GetBeginDST(year, wxDateTime::USA),
 578                    dtEnd = wxDateTime::GetEndDST(year, wxDateTime::USA);
 579
 580         size_t n = year - 1990;
 581         const Date& dBegin = datesDST[0][n];
 582         const Date& dEnd = datesDST[1][n];
 583
 584         CPPUNIT_ASSERT( dBegin.SameDay(dtBegin.GetTm()) );
 585         CPPUNIT_ASSERT( dEnd.SameDay(dtEnd.GetTm()) );
 586     }
 587 }
 588
 589 // test wxDateTime -> text conversion
 590 void DateTimeTestCase::TestTimeFormat()
 591 {
 592     // some information may be lost during conversion, so store what kind
 593     // of info should we recover after a round trip
 594     enum CompareKind
 595     {
 596         CompareNone,        // don't try comparing
 597         CompareBoth,        // dates and times should be identical
 598         CompareYear,        // don't compare centuries (fails for 2 digit years)
 599         CompareDate,        // dates only
 600         CompareTime         // time only
 601     };
 602
 603     static const struct
 604     {
 605         CompareKind compareKind;
 606         const char *format;
 607     } formatTestFormats[] =
 608     {
 609        { CompareYear, "---> %c" }, // %c could use 2 digit years
 610        { CompareDate, "Date is %A, %d of %B, in year %Y" },
 611        { CompareYear, "Date is %x, time is %X" }, // %x could use 2 digits
 612        { CompareTime, "Time is %H:%M:%S or %I:%M:%S %p" },
 613        { CompareNone, "The day of year: %j, the week of year: %W" },
 614        { CompareDate, "ISO date without separators: %Y%m%d" },
 615     };
 616
 617     static const Date formatTestDates[] =
 618     {
 619         { 29, wxDateTime::May, 1976, 18, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 620         { 31, wxDateTime::Dec, 1999, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 621         {  6, wxDateTime::Feb, 1937, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 622         {  6, wxDateTime::Feb, 1856, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 623         {  6, wxDateTime::Feb, 1857, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 624         { 29, wxDateTime::May, 2076, 18, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
 625         { 29, wxDateTime::Feb, 2400, 02, 15, 25, 0.0, wxDateTime::Inv_WeekDay },
 626 #if 0
 627         // Need to add support for BCE dates.
 628         { 01, wxDateTime::Jan,  -52, 03, 16, 47, 0.0, wxDateTime::Inv_WeekDay },
 629 #endif
 630     };
 631
 632     for ( size_t d = 0; d < WXSIZEOF(formatTestDates); d++ )
 633     {
 634         wxDateTime dt = formatTestDates[d].DT();
 635         for ( size_t n = 0; n < WXSIZEOF(formatTestFormats); n++ )
 636         {
 637             const char *fmt = formatTestFormats[n].format;
 638             wxString s = dt.Format(fmt);
 639
 640             // what can we recover?
 641             CompareKind kind = formatTestFormats[n].compareKind;
 642
 643             // convert back
 644             wxDateTime dt2;
 645             const char *result = dt2.ParseFormat(s, fmt);
 646             if ( !result )
 647             {
 648                 // converion failed - should it have?
 649                 CPPUNIT_ASSERT( kind == CompareNone );
 650             }
 651             else // conversion succeeded
 652             {
 653                 // should have parsed the entire string
 654                 CPPUNIT_ASSERT( !*result );
 655
 656                 switch ( kind )
 657                 {
 658                     case CompareYear:
 659                         if ( dt2.GetCentury() != dt.GetCentury() )
 660                         {
 661                             CPPUNIT_ASSERT_EQUAL(dt.GetYear() % 100,
 662                                                  dt2.GetYear() % 100);
 663
 664                             dt2.SetYear(dt.GetYear());
 665                         }
 666                         // fall through and compare everything
 667
 668                     case CompareBoth:
 669                         CPPUNIT_ASSERT_EQUAL( dt, dt2 );
 670                         break;
 671
 672                     case CompareDate:
 673                         CPPUNIT_ASSERT( dt.IsSameDate(dt2) );
 674                         break;
 675
 676                     case CompareTime:
 677                         CPPUNIT_ASSERT( dt.IsSameTime(dt2) );
 678                         break;
 679
 680                     case CompareNone:
 681                         wxFAIL_MSG( _T("unexpected") );
 682                         break;
 683                 }
 684             }
 685         }
 686     }
 687
 688     // test compilation of some calls which should compile (and not result in
 689     // ambiguity because of char*<->wxCStrData<->wxString conversions)
 690     wxDateTime dt;
 691     wxString s("foo");
 692     CPPUNIT_ASSERT( !dt.ParseFormat("foo") );
 693     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo")) );
 694     CPPUNIT_ASSERT( !dt.ParseFormat(s) );
 695     CPPUNIT_ASSERT( !dt.ParseFormat(s.c_str()) );
 696
 697     CPPUNIT_ASSERT( !dt.ParseFormat("foo", "%c") );
 698     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), "%c") );
 699     CPPUNIT_ASSERT( !dt.ParseFormat(s, "%c") );
 700     CPPUNIT_ASSERT( !dt.ParseFormat(s.c_str(), "%c") );
 701
 702     CPPUNIT_ASSERT( !dt.ParseFormat("foo", wxT("%c")) );
 703     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), wxT("%c")) );
 704     CPPUNIT_ASSERT( !dt.ParseFormat(s, "%c") );
 705     CPPUNIT_ASSERT( !dt.ParseFormat(s.c_str(), wxT("%c")) );
 706
 707     wxString spec("%c");
 708     CPPUNIT_ASSERT( !dt.ParseFormat("foo", spec) );
 709     CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), spec) );
 710     CPPUNIT_ASSERT( !dt.ParseFormat(s, spec) );
 711     CPPUNIT_ASSERT( !dt.ParseFormat(s.c_str(), spec) );
 712 }
 713
 714 void DateTimeTestCase::TestTimeSpanFormat()
 715 {
 716     static const struct TimeSpanFormatTestData
 717     {
 718         long h, min, sec, msec;
 719         const char *fmt;
 720         const char *result;
 721     } testSpans[] =
 722     {
 723         {   12, 34, 56, 789, "%H:%M:%S.%l",   "12:34:56.789"          },
 724         {    1,  2,  3,   0, "%H:%M:%S",      "01:02:03"              },
 725         {    1,  2,  3,   0, "%S",            "3723"                  },
 726         {   -1, -2, -3,   0, "%S",            "-3723"                 },
 727         {   -1, -2, -3,   0, "%H:%M:%S",      "-01:02:03"             },
 728         {   26,  0,  0,   0, "%H",            "26"                    },
 729         {   26,  0,  0,   0, "%D, %H",        "1, 02"                 },
 730         {  -26,  0,  0,   0, "%H",            "-26"                   },
 731         {  -26,  0,  0,   0, "%D, %H",        "-1, 02"                },
 732         {  219,  0,  0,   0, "%H",            "219"                   },
 733         {  219,  0,  0,   0, "%D, %H",        "9, 03"                 },
 734         {  219,  0,  0,   0, "%E, %D, %H",    "1, 2, 03"              },
 735     };
 736
 737     for ( size_t n = 0; n < WXSIZEOF(testSpans); n++ )
 738     {
 739         const TimeSpanFormatTestData& td = testSpans[n];
 740         wxTimeSpan ts(td.h, td.min, td.sec, td.msec);
 741         CPPUNIT_ASSERT_EQUAL( wxString(td.result), ts.Format(td.fmt) );
 742     }
 743 }
 744
 745 void DateTimeTestCase::TestTimeTicks()
 746 {
 747     static const wxDateTime::TimeZone TZ_LOCAL(wxDateTime::Local);
 748     static const wxDateTime::TimeZone TZ_TEST(wxDateTime::NZST);
 749
 750     // this offset is needed to make the test work in any time zone when we
 751     // only have expected test results in UTC in testDates
 752     static const long tzOffset = TZ_LOCAL.GetOffset() - TZ_TEST.GetOffset();
 753
 754     for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
 755     {
 756         const Date& d = testDates[n];
 757         if ( d.gmticks == -1 )
 758             continue;
 759
 760         wxDateTime dt = d.DT().MakeTimezone(TZ_TEST, true /* no DST */);
 761
 762         // GetValue() returns internal UTC-based representation, we need to
 763         // convert it to local TZ before comparing
 764         long ticks = (dt.GetValue() / 1000).ToLong() + TZ_LOCAL.GetOffset();
 765         if ( dt.IsDST() )
 766             ticks += 3600;
 767         CPPUNIT_ASSERT_EQUAL( d.gmticks, ticks + tzOffset );
 768
 769         dt = d.DT().FromTimezone(wxDateTime::UTC);
 770         ticks = (dt.GetValue() / 1000).ToLong();
 771         CPPUNIT_ASSERT_EQUAL( d.gmticks, ticks );
 772     }
 773 }
 774
 775 // test parsing dates in RFC822 format
 776 void DateTimeTestCase::TestParceRFC822()
 777 {
 778     static const struct ParseTestData
 779     {
 780         const char *rfc822;
 781         Date date;              // NB: this should be in UTC
 782         bool good;
 783     } parseTestDates[] =
 784     {
 785         {
 786             "Sat, 18 Dec 1999 00:46:40 +0100",
 787             { 17, wxDateTime::Dec, 1999, 23, 46, 40 },
 788             true
 789         },
 790         {
 791             "Wed, 1 Dec 1999 05:17:20 +0300",
 792             {  1, wxDateTime::Dec, 1999, 2, 17, 20 },
 793             true
 794         },
 795         {
 796             "Sun, 28 Aug 2005 03:31:30 +0200",
 797             { 28, wxDateTime::Aug, 2005, 1, 31, 30 },
 798             true
 799         },
 800
 801         {
 802             "Sat, 18 Dec 1999 10:48:30 -0500",
 803             { 18, wxDateTime::Dec, 1999, 15, 48, 30 },
 804             true
 805         },
 806
 807         // seconds are optional according to the RFC
 808         {
 809             "Sun, 01 Jun 2008 16:30 +0200",
 810             {  1, wxDateTime::Jun, 2008, 14, 30, 00 },
 811             true
 812         },
 813
 814         // try some bogus ones too
 815         {
 816             "Sun, 01 Jun 2008 16:30: +0200",
 817             { 0 },
 818             false
 819         },
 820     };
 821
 822     for ( unsigned n = 0; n < WXSIZEOF(parseTestDates); n++ )
 823     {
 824         const char * const datestr = parseTestDates[n].rfc822;
 825
 826         wxDateTime dt;
 827         if ( dt.ParseRfc822Date(datestr) )
 828         {
 829             WX_ASSERT_MESSAGE(
 830                 ("Erroneously parsed \"%s\"", datestr),
 831                 parseTestDates[n].good
 832             );
 833
 834             wxDateTime dtReal = parseTestDates[n].date.DT().FromUTC();
 835             CPPUNIT_ASSERT_EQUAL( dtReal, dt );
 836         }
 837         else // failed to parse
 838         {
 839             WX_ASSERT_MESSAGE(
 840                 ("Failed to parse \"%s\"", datestr),
 841                 !parseTestDates[n].good
 842             );
 843         }
 844     }
 845 }
 846
 847 // test parsing dates in free format
 848 void DateTimeTestCase::TestDateParse()
 849 {
 850     static const struct ParseTestData
 851     {
 852         const char *str;
 853         Date date;              // NB: this should be in UTC
 854         bool good;
 855     } parseTestDates[] =
 856     {
 857         { "21 Mar 2006", { 21, wxDateTime::Mar, 2006 }, true },
 858         { "29 Feb 1976", { 29, wxDateTime::Feb, 1976 }, true },
 859         { "Feb 29 1976", { 29, wxDateTime::Feb, 1976 }, true },
 860         { "31/03/06",    { 31, wxDateTime::Mar,    6 }, true },
 861         { "31/03/2006",  { 31, wxDateTime::Mar, 2006 }, true },
 862
 863         // some invalid ones too
 864         { "29 Feb 2006" },
 865         { "31/04/06" },
 866         { "bloordyblop" },
 867     };
 868
 869     // special cases
 870     wxDateTime dt;
 871     CPPUNIT_ASSERT( dt.ParseDate(_T("today")) );
 872     CPPUNIT_ASSERT_EQUAL( wxDateTime::Today(), dt );
 873
 874     for ( size_t n = 0; n < WXSIZEOF(parseTestDates); n++ )
 875     {
 876         wxDateTime dt;
 877         if ( dt.ParseDate(parseTestDates[n].str) )
 878         {
 879             CPPUNIT_ASSERT( parseTestDates[n].good );
 880
 881             CPPUNIT_ASSERT_EQUAL( parseTestDates[n].date.DT(), dt );
 882         }
 883         else // failed to parse
 884         {
 885             CPPUNIT_ASSERT( !parseTestDates[n].good );
 886         }
 887     }
 888 }
 889
 890 void DateTimeTestCase::TestDateParseISO()
 891 {
 892     static const struct
 893     {
 894         const char *str;
 895         Date date;              // NB: this should be in UTC
 896         bool good;
 897     } parseTestDates[] =
 898     {
 899         { "2006-03-21", { 21, wxDateTime::Mar, 2006 }, true },
 900         { "1976-02-29", { 29, wxDateTime::Feb, 1976 }, true },
 901         { "0006-03-31", { 31, wxDateTime::Mar,    6 }, true },
 902
 903         // some invalid ones too
 904         { "2006:03:31" },
 905         { "31/04/06" },
 906         { "bloordyblop" },
 907         { "" },
 908     };
 909
 910     static const struct
 911     {
 912         const char *str;
 913         wxDateTime::wxDateTime_t hour, min, sec;
 914         bool good;
 915     } parseTestTimes[] =
 916     {
 917         { "13:42:17", 13, 42, 17, true },
 918         { "02:17:01",  2, 17,  1, true },
 919
 920         // some invalid ones too
 921         { "66:03:31" },
 922         { "31/04/06" },
 923         { "bloordyblop" },
 924         { "" },
 925     };
 926
 927     for ( size_t n = 0; n < WXSIZEOF(parseTestDates); n++ )
 928     {
 929         wxDateTime dt;
 930         if ( dt.ParseISODate(parseTestDates[n].str) )
 931         {
 932             CPPUNIT_ASSERT( parseTestDates[n].good );
 933
 934             CPPUNIT_ASSERT_EQUAL( parseTestDates[n].date.DT(), dt );
 935
 936             for ( size_t m = 0; m < WXSIZEOF(parseTestTimes); m++ )
 937             {
 938                 wxString dtCombined;
 939                 dtCombined << parseTestDates[n].str
 940                            << 'T'
 941                            << parseTestTimes[m].str;
 942
 943                 if ( dt.ParseISOCombined(dtCombined) )
 944                 {
 945                     CPPUNIT_ASSERT( parseTestTimes[m].good );
 946
 947                     CPPUNIT_ASSERT_EQUAL( parseTestTimes[m].hour, dt.GetHour()) ;
 948                     CPPUNIT_ASSERT_EQUAL( parseTestTimes[m].min, dt.GetMinute()) ;
 949                     CPPUNIT_ASSERT_EQUAL( parseTestTimes[m].sec, dt.GetSecond()) ;
 950                 }
 951                 else // failed to parse combined date/time
 952                 {
 953                     CPPUNIT_ASSERT( !parseTestTimes[m].good );
 954                 }
 955             }
 956         }
 957         else // failed to parse
 958         {
 959             CPPUNIT_ASSERT( !parseTestDates[n].good );
 960         }
 961     }
 962 }
 963
 964 void DateTimeTestCase::TestDateTimeParse()
 965 {
 966     static const struct ParseTestData
 967     {
 968         const char *str;
 969         Date date;              // NB: this should be in UTC
 970         bool good;
 971     } parseTestDates[] =
 972     {
 973         { "Thu 22 Nov 2007 07:40:00 PM",
 974          { 22, wxDateTime::Nov, 2007, 19, 40, 0}, true },
 975     };
 976
 977     // special cases
 978     wxDateTime dt;
 979     for ( size_t n = 0; n < WXSIZEOF(parseTestDates); n++ )
 980     {
 981         wxDateTime dt;
 982         if ( dt.ParseDateTime(parseTestDates[n].str) )
 983         {
 984             CPPUNIT_ASSERT( parseTestDates[n].good );
 985
 986             CPPUNIT_ASSERT_EQUAL( parseTestDates[n].date.DT(), dt );
 987         }
 988         else // failed to parse
 989         {
 990             CPPUNIT_ASSERT( !parseTestDates[n].good );
 991         }
 992     }
 993 }
 994
 995 void DateTimeTestCase::TestTimeArithmetics()
 996 {
 997     static const wxDateSpan testArithmData[] =
 998     {
 999         wxDateSpan::Day(),
1000         wxDateSpan::Week(),
1001         wxDateSpan::Month(),
1002         wxDateSpan::Year(),
1003     };
1004
1005     // the test will *not* work with arbitrary date!
1006     wxDateTime dt(2, wxDateTime::Dec, 1999),
1007                dt1,
1008                dt2;
1009
1010     for ( size_t n = 0; n < WXSIZEOF(testArithmData); n++ )
1011     {
1012         const wxDateSpan& span = testArithmData[n];
1013         dt1 = dt + span;
1014         dt2 = dt - span;
1015
1016         CPPUNIT_ASSERT( dt1 - span == dt );
1017         CPPUNIT_ASSERT( dt2 + span == dt );
1018         CPPUNIT_ASSERT( dt2 + 2*span == dt1 );
1019     }
1020 }
1021
1022 void DateTimeTestCase::TestDSTBug()
1023 {
1024     /////////////////////////
1025     // Test GetEndDST()
1026     wxDateTime dt = wxDateTime::GetEndDST(2004, wxDateTime::France);
1027     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1028     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1029     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1030     CPPUNIT_ASSERT_EQUAL(1, (int)dt.GetHour());
1031     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
1032     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1033     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1034
1035     /////////////////////////
1036     // Test ResetTime()
1037     dt.SetHour(5);
1038     CPPUNIT_ASSERT_EQUAL(5, (int)dt.GetHour());
1039     dt.ResetTime();
1040     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1041     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1042     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1043     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetHour());
1044     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
1045     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1046     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1047
1048     dt.Set(1, 0, 0, 0);
1049     CPPUNIT_ASSERT_EQUAL(1, (int)dt.GetHour());
1050
1051     /////////////////////////
1052     // Test Today()
1053 #ifdef CHANGE_SYSTEM_DATE
1054     {
1055         DateChanger change(2004, 10, 31, 5, 0, 0);
1056         dt = wxDateTime::Today();
1057     }
1058
1059     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1060     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1061     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1062     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetHour());
1063     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
1064     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1065     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1066
1067     /////////////////////////
1068     // Test Set(hour, minute, second, milli)
1069     wxDateTime dt2;
1070     {
1071         DateChanger change(2004, 10, 31, 5, 0, 0);
1072         dt.Set(1, 30, 0, 0);
1073         dt2.Set(5, 30, 0, 0);
1074     }
1075
1076     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
1077     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
1078     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
1079     CPPUNIT_ASSERT_EQUAL(1, (int)dt.GetHour());
1080     CPPUNIT_ASSERT_EQUAL(30, (int)dt.GetMinute());
1081     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
1082     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
1083
1084     CPPUNIT_ASSERT_EQUAL(31, (int)dt2.GetDay());
1085     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt2.GetMonth());
1086     CPPUNIT_ASSERT_EQUAL(2004, (int)dt2.GetYear());
1087     CPPUNIT_ASSERT_EQUAL(5, (int)dt2.GetHour());
1088     CPPUNIT_ASSERT_EQUAL(30, (int)dt2.GetMinute());
1089     CPPUNIT_ASSERT_EQUAL(0, (int)dt2.GetSecond());
1090     CPPUNIT_ASSERT_EQUAL(0, (int)dt2.GetMillisecond());
1091 #endif // CHANGE_SYSTEM_DATE
1092 }
1093
1094 void DateTimeTestCase::TestDateOnly()
1095 {
1096     wxDateTime dt(19, wxDateTime::Jan, 2007, 15, 01, 00);
1097
1098     static const wxDateTime::wxDateTime_t DATE_ZERO = 0;
1099     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetHour() );
1100     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetMinute() );
1101     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetSecond() );
1102     CPPUNIT_ASSERT_EQUAL( DATE_ZERO, dt.GetDateOnly().GetMillisecond() );
1103
1104     dt.ResetTime();
1105     CPPUNIT_ASSERT_EQUAL( wxDateTime(19, wxDateTime::Jan, 2007), dt );
1106
1107     CPPUNIT_ASSERT_EQUAL( wxDateTime::Today(), wxDateTime::Now().GetDateOnly() );
1108 }
1109
1110 #endif // wxUSE_DATETIME