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