tests/datetime/datetimetest.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        tests/datetime/datetime.cpp
   3 // Purpose:     wxDateTime unit test
   4 // Author:      Vadim Zeitlin
   5 // Created:     2004-06-23 (extracted from samples/console/console.cpp)
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2004 Vadim Zeitlin <vadim@wxwindows.org>
   8 ///////////////////////////////////////////////////////////////////////////////
   9
  10 // ----------------------------------------------------------------------------
  11 // headers
  12 // ----------------------------------------------------------------------------
  13
  14 #include "testprec.h"
  15
  16 #ifdef __BORLANDC__
  17     #pragma hdrstop
  18 #endif
  19
  20 #ifndef WX_PRECOMP
  21 #endif // WX_PRECOMP
  22
  23 #if wxUSE_DATETIME
  24
  25 #include "wx/datetime.h"
  26 #include "wx/ioswrap.h"
  27
  28 // need this to be able to use CPPUNIT_ASSERT_EQUAL with wxDateTime objects
  29 static wxSTD ostream& operator<<(wxSTD ostream& ostr, const wxDateTime& dt)
  30 {
  31     ostr << dt.Format();
  32
  33     return ostr;
  34 }
  35
  36 // to test Today() meaningfully we must be able to change the system date which
  37 // is not usually the case, but if we're under Win32 we can try it -- define
  38 // the macro below to do it
  39 //#define CHANGE_SYSTEM_DATE
  40
  41 #ifndef __WINDOWS__
  42     #undef CHANGE_SYSTEM_DATE
  43 #endif
  44
  45 #ifdef CHANGE_SYSTEM_DATE
  46
  47 class DateChanger
  48 {
  49 public:
  50     DateChanger(int year, int month, int day, int hour, int min, int sec)
  51     {
  52         SYSTEMTIME st;
  53         st.wDay = day;
  54         st.wMonth = month;
  55         st.wYear = year;
  56         st.wHour = hour;
  57         st.wMinute = min;
  58         st.wSecond = sec;
  59         st.wMilliseconds = 0;
  60
  61         ::GetSystemTime(&m_savedTime);
  62         ::GetTimeZoneInformation(&m_tzi);
  63
  64         m_changed = ::SetSystemTime(&st) != 0;
  65     }
  66
  67     ~DateChanger()
  68     {
  69         if ( m_changed )
  70         {
  71             ::SetSystemTime(&m_savedTime);
  72             ::SetTimeZoneInformation(&m_tzi);
  73         }
  74     }
  75
  76 private:
  77     SYSTEMTIME m_savedTime;
  78     TIME_ZONE_INFORMATION m_tzi;
  79     bool m_changed;
  80 };
  81
  82 #endif // CHANGE_SYSTEM_DATE
  83
  84 // ----------------------------------------------------------------------------
  85 // broken down date representation used for testing
  86 // ----------------------------------------------------------------------------
  87
  88 struct Date
  89 {
  90     wxDateTime::wxDateTime_t day;
  91     wxDateTime::Month month;
  92     int year;
  93     wxDateTime::wxDateTime_t hour, min, sec;
  94     double jdn;
  95     wxDateTime::WeekDay wday;
  96     time_t gmticks, ticks;
  97     long  flags;  //Test specific flags - currently only used by TestTimeFormat.
  98
  99     void Init(const wxDateTime::Tm& tm)
 100     {
 101         day = tm.mday;
 102         month = tm.mon;
 103         year = tm.year;
 104         hour = tm.hour;
 105         min = tm.min;
 106         sec = tm.sec;
 107         jdn = 0.0;
 108         gmticks = ticks = -1;
 109     }
 110
 111     wxDateTime DT() const
 112         { return wxDateTime(day, month, year, hour, min, sec); }
 113
 114     bool SameDay(const wxDateTime::Tm& tm) const
 115     {
 116         return day == tm.mday && month == tm.mon && year == tm.year;
 117     }
 118
 119     wxString Format() const
 120     {
 121         wxString s;
 122         s.Printf(_T("%02d:%02d:%02d %10s %02d, %4d%s"),
 123                  hour, min, sec,
 124                  wxDateTime::GetMonthName(month).c_str(),
 125                  day,
 126                  abs(wxDateTime::ConvertYearToBC(year)),
 127                  year > 0 ? _T("AD") : _T("BC"));
 128         return s;
 129     }
 130
 131     wxString FormatDate() const
 132     {
 133         wxString s;
 134         s.Printf(_T("%02d-%s-%4d%s"),
 135                  day,
 136                  wxDateTime::GetMonthName(month, wxDateTime::Name_Abbr).c_str(),
 137                  abs(wxDateTime::ConvertYearToBC(year)),
 138                  year > 0 ? _T("AD") : _T("BC"));
 139         return s;
 140     }
 141     bool IsSet(long f) const { return (f && flags) ==f; }
 142 };
 143
 144 // ----------------------------------------------------------------------------
 145 // test data
 146 // ----------------------------------------------------------------------------
 147
 148 static const Date testDates[] =
 149 {
 150     {  1, wxDateTime::Jan,  1970, 00, 00, 00, 2440587.5, wxDateTime::Thu,         0,     -3600 },
 151     {  7, wxDateTime::Feb,  2036, 00, 00, 00, 2464730.5, wxDateTime::Thu,        -1,        -1 },
 152     {  8, wxDateTime::Feb,  2036, 00, 00, 00, 2464731.5, wxDateTime::Fri,        -1,        -1 },
 153     {  1, wxDateTime::Jan,  2037, 00, 00, 00, 2465059.5, wxDateTime::Thu,        -1,        -1 },
 154     {  1, wxDateTime::Jan,  2038, 00, 00, 00, 2465424.5, wxDateTime::Fri,        -1,        -1 },
 155     { 21, wxDateTime::Jan,  2222, 00, 00, 00, 2532648.5, wxDateTime::Mon,        -1,        -1 },
 156     { 29, wxDateTime::May,  1976, 12, 00, 00, 2442928.0, wxDateTime::Sat, 202219200, 202212000 },
 157     { 29, wxDateTime::Feb,  1976, 00, 00, 00, 2442837.5, wxDateTime::Sun, 194400000, 194396400 },
 158     {  1, wxDateTime::Jan,  1900, 12, 00, 00, 2415021.0, wxDateTime::Mon,        -1,        -1 },
 159     {  1, wxDateTime::Jan,  1900, 00, 00, 00, 2415020.5, wxDateTime::Mon,        -1,        -1 },
 160     { 15, wxDateTime::Oct,  1582, 00, 00, 00, 2299160.5, wxDateTime::Fri,        -1,        -1 },
 161     {  4, wxDateTime::Oct,  1582, 00, 00, 00, 2299149.5, wxDateTime::Mon,        -1,        -1 },
 162     {  1, wxDateTime::Mar,     1, 00, 00, 00, 1721484.5, wxDateTime::Thu,        -1,        -1 },
 163     {  1, wxDateTime::Jan,     1, 00, 00, 00, 1721425.5, wxDateTime::Mon,        -1,        -1 },
 164     { 31, wxDateTime::Dec,     0, 00, 00, 00, 1721424.5, wxDateTime::Sun,        -1,        -1 },
 165     {  1, wxDateTime::Jan,     0, 00, 00, 00, 1721059.5, wxDateTime::Sat,        -1,        -1 },
 166     { 12, wxDateTime::Aug, -1234, 00, 00, 00, 1270573.5, wxDateTime::Fri,        -1,        -1 },
 167     { 12, wxDateTime::Aug, -4000, 00, 00, 00,  260313.5, wxDateTime::Sat,        -1,        -1 },
 168     { 24, wxDateTime::Nov, -4713, 00, 00, 00,      -0.5, wxDateTime::Mon,        -1,        -1 },
 169 };
 170
 171
 172 // ----------------------------------------------------------------------------
 173 // test class
 174 // ----------------------------------------------------------------------------
 175
 176 class DateTimeTestCase : public CppUnit::TestCase
 177 {
 178 public:
 179     DateTimeTestCase() { }
 180
 181 private:
 182     CPPUNIT_TEST_SUITE( DateTimeTestCase );
 183         CPPUNIT_TEST( TestLeapYears );
 184         CPPUNIT_TEST( TestTimeSet );
 185         CPPUNIT_TEST( TestTimeJDN );
 186         CPPUNIT_TEST( TestTimeWNumber );
 187         CPPUNIT_TEST( TestTimeWDays );
 188         CPPUNIT_TEST( TestTimeDST );
 189         CPPUNIT_TEST( TestTimeFormat );
 190         CPPUNIT_TEST( TestTimeSpanFormat );
 191         CPPUNIT_TEST( TestTimeTicks );
 192         CPPUNIT_TEST( TestParceRFC822 );
 193         CPPUNIT_TEST( TestDateParse );
 194         CPPUNIT_TEST( TestTimeArithmetics );
 195         CPPUNIT_TEST( TestDSTBug );
 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 TestTimeArithmetics();
 210     void TestDSTBug();
 211
 212     DECLARE_NO_COPY_CLASS(DateTimeTestCase)
 213 };
 214
 215 // register in the unnamed registry so that these tests are run by default
 216 CPPUNIT_TEST_SUITE_REGISTRATION( DateTimeTestCase );
 217
 218 // also include in it's own registry so that these tests can be run alone
 219 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( DateTimeTestCase, "DateTimeTestCase" );
 220
 221 // ============================================================================
 222 // implementation
 223 // ============================================================================
 224
 225 // test leap years detection
 226 void DateTimeTestCase::TestLeapYears()
 227 {
 228     static const struct LeapYearTestData
 229     {
 230         int year;
 231         bool isLeap;
 232     } years[] =
 233     {
 234         { 1900, false },
 235         { 1990, false },
 236         { 1976, true },
 237         { 2000, true },
 238         { 2030, false },
 239         { 1984, true },
 240         { 2100, false },
 241         { 2400, true },
 242     };
 243
 244     for ( size_t n = 0; n < WXSIZEOF(years); n++ )
 245     {
 246         const LeapYearTestData& y = years[n];
 247
 248         CPPUNIT_ASSERT( wxDateTime::IsLeapYear(y.year) == y.isLeap );
 249     }
 250 }
 251
 252 // test constructing wxDateTime objects
 253 void DateTimeTestCase::TestTimeSet()
 254 {
 255     for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
 256     {
 257         const Date& d1 = testDates[n];
 258         wxDateTime dt = d1.DT();
 259
 260         Date d2;
 261         d2.Init(dt.GetTm());
 262
 263         wxString s1 = d1.Format(),
 264                  s2 = d2.Format();
 265
 266         CPPUNIT_ASSERT( s1 == s2 );
 267     }
 268 }
 269
 270 // test conversions to JDN &c
 271 void DateTimeTestCase::TestTimeJDN()
 272 {
 273     for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
 274     {
 275         const Date& d = testDates[n];
 276         wxDateTime dt(d.day, d.month, d.year, d.hour, d.min, d.sec);
 277
 278         // JDNs must be computed for UTC times
 279         double jdn = dt.FromUTC().GetJulianDayNumber();
 280
 281         CPPUNIT_ASSERT( jdn == d.jdn );
 282
 283         dt.Set(jdn);
 284         CPPUNIT_ASSERT( dt.GetJulianDayNumber() == jdn );
 285     }
 286 }
 287
 288 // test week days computation
 289 void DateTimeTestCase::TestTimeWDays()
 290 {
 291     // test GetWeekDay()
 292     size_t n;
 293     for ( n = 0; n < WXSIZEOF(testDates); n++ )
 294     {
 295         const Date& d = testDates[n];
 296         wxDateTime dt(d.day, d.month, d.year, d.hour, d.min, d.sec);
 297
 298         wxDateTime::WeekDay wday = dt.GetWeekDay();
 299         CPPUNIT_ASSERT( wday == d.wday );
 300     }
 301
 302     // test SetToWeekDay()
 303     struct WeekDateTestData
 304     {
 305         Date date;                  // the real date (precomputed)
 306         int nWeek;                  // its week index in the month
 307         wxDateTime::WeekDay wday;   // the weekday
 308         wxDateTime::Month month;    // the month
 309         int year;                   // and the year
 310
 311         wxString Format() const
 312         {
 313             wxString s, which;
 314             switch ( nWeek < -1 ? -nWeek : nWeek )
 315             {
 316                 case 1: which = _T("first"); break;
 317                 case 2: which = _T("second"); break;
 318                 case 3: which = _T("third"); break;
 319                 case 4: which = _T("fourth"); break;
 320                 case 5: which = _T("fifth"); break;
 321
 322                 case -1: which = _T("last"); break;
 323             }
 324
 325             if ( nWeek < -1 )
 326             {
 327                 which += _T(" from end");
 328             }
 329
 330             s.Printf(_T("The %s %s of %s in %d"),
 331                      which.c_str(),
 332                      wxDateTime::GetWeekDayName(wday).c_str(),
 333                      wxDateTime::GetMonthName(month).c_str(),
 334                      year);
 335
 336             return s;
 337         }
 338     };
 339
 340     // the array data was generated by the following python program
 341     /*
 342 from DateTime import *
 343 from whrandom import *
 344 from string import *
 345
 346 monthNames = [ 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' ]
 347 wdayNames = [ 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun' ]
 348
 349 week = DateTimeDelta(7)
 350
 351 for n in range(20):
 352     year = randint(1900, 2100)
 353     month = randint(1, 12)
 354     day = randint(1, 28)
 355     dt = DateTime(year, month, day)
 356     wday = dt.day_of_week
 357
 358     countFromEnd = choice([-1, 1])
 359     weekNum = 0;
 360
 361     while dt.month is month:
 362         dt = dt - countFromEnd * week
 363         weekNum = weekNum + countFromEnd
 364
 365     data = { 'day': rjust(`day`, 2), 'month': monthNames[month - 1], 'year': year, 'weekNum': rjust(`weekNum`, 2), 'wday': wdayNames[wday] }
 366
 367     print "{ { %(day)s, wxDateTime::%(month)s, %(year)d }, %(weekNum)d, "\
 368           "wxDateTime::%(wday)s, wxDateTime::%(month)s, %(year)d }," % data
 369     */
 370
 371     static const WeekDateTestData weekDatesTestData[] =
 372     {
 373         { { 20, wxDateTime::Mar, 2045, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  3, wxDateTime::Mon, wxDateTime::Mar, 2045 },
 374         { {  5, wxDateTime::Jun, 1985, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, -4, wxDateTime::Wed, wxDateTime::Jun, 1985 },
 375         { { 12, wxDateTime::Nov, 1961, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, -3, wxDateTime::Sun, wxDateTime::Nov, 1961 },
 376         { { 27, wxDateTime::Feb, 2093, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, -1, wxDateTime::Fri, wxDateTime::Feb, 2093 },
 377         { {  4, wxDateTime::Jul, 2070, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, -4, wxDateTime::Fri, wxDateTime::Jul, 2070 },
 378         { {  2, wxDateTime::Apr, 1906, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, -5, wxDateTime::Mon, wxDateTime::Apr, 1906 },
 379         { { 19, wxDateTime::Jul, 2023, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, -2, wxDateTime::Wed, wxDateTime::Jul, 2023 },
 380         { {  5, wxDateTime::May, 1958, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, -4, wxDateTime::Mon, wxDateTime::May, 1958 },
 381         { { 11, wxDateTime::Aug, 1900, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  2, wxDateTime::Sat, wxDateTime::Aug, 1900 },
 382         { { 14, wxDateTime::Feb, 1945, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  2, wxDateTime::Wed, wxDateTime::Feb, 1945 },
 383         { { 25, wxDateTime::Jul, 1967, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, -1, wxDateTime::Tue, wxDateTime::Jul, 1967 },
 384         { {  9, wxDateTime::May, 1916, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, -4, wxDateTime::Tue, wxDateTime::May, 1916 },
 385         { { 20, wxDateTime::Jun, 1927, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  3, wxDateTime::Mon, wxDateTime::Jun, 1927 },
 386         { {  2, wxDateTime::Aug, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  1, wxDateTime::Wed, wxDateTime::Aug, 2000 },
 387         { { 20, wxDateTime::Apr, 2044, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  3, wxDateTime::Wed, wxDateTime::Apr, 2044 },
 388         { { 20, wxDateTime::Feb, 1932, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, -2, wxDateTime::Sat, wxDateTime::Feb, 1932 },
 389         { { 25, wxDateTime::Jul, 2069, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  4, wxDateTime::Thu, wxDateTime::Jul, 2069 },
 390         { {  3, wxDateTime::Apr, 1925, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  1, wxDateTime::Fri, wxDateTime::Apr, 1925 },
 391         { { 21, wxDateTime::Mar, 2093, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  3, wxDateTime::Sat, wxDateTime::Mar, 2093 },
 392         { {  3, wxDateTime::Dec, 2074, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, -5, wxDateTime::Mon, wxDateTime::Dec, 2074 }
 393     };
 394
 395     wxDateTime dt;
 396     for ( n = 0; n < WXSIZEOF(weekDatesTestData); n++ )
 397     {
 398         const WeekDateTestData& wd = weekDatesTestData[n];
 399
 400         dt.SetToWeekDay(wd.wday, wd.nWeek, wd.month, wd.year);
 401
 402         const Date& d = wd.date;
 403         CPPUNIT_ASSERT( d.SameDay(dt.GetTm()) );
 404     }
 405 }
 406
 407 // test the computation of (ISO) week numbers
 408 void DateTimeTestCase::TestTimeWNumber()
 409 {
 410     struct WeekNumberTestData
 411     {
 412         Date date;                          // the date
 413         wxDateTime::wxDateTime_t week;      // the week number in the year
 414         wxDateTime::wxDateTime_t wmon;      // the week number in the month
 415         wxDateTime::wxDateTime_t wmon2;     // same but week starts with Sun
 416         wxDateTime::wxDateTime_t dnum;      // day number in the year
 417     };
 418
 419     // data generated with the following python script:
 420     /*
 421 from DateTime import *
 422 from whrandom import *
 423 from string import *
 424
 425 monthNames = [ 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' ]
 426 wdayNames = [ 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun' ]
 427
 428 def GetMonthWeek(dt):
 429     weekNumMonth = dt.iso_week[1] - DateTime(dt.year, dt.month, 1).iso_week[1] + 1
 430     if weekNumMonth < 0:
 431         weekNumMonth = weekNumMonth + 53
 432     return weekNumMonth
 433
 434 def GetLastSundayBefore(dt):
 435     if dt.iso_week[2] == 7:
 436         return dt
 437     else:
 438         return dt - DateTimeDelta(dt.iso_week[2])
 439
 440 for n in range(20):
 441     year = randint(1900, 2100)
 442     month = randint(1, 12)
 443     day = randint(1, 28)
 444     dt = DateTime(year, month, day)
 445     dayNum = dt.day_of_year
 446     weekNum = dt.iso_week[1]
 447     weekNumMonth = GetMonthWeek(dt)
 448
 449     weekNumMonth2 = 0
 450     dtSunday = GetLastSundayBefore(dt)
 451
 452     while dtSunday >= GetLastSundayBefore(DateTime(dt.year, dt.month, 1)):
 453         weekNumMonth2 = weekNumMonth2 + 1
 454         dtSunday = dtSunday - DateTimeDelta(7)
 455
 456     data = { 'day': rjust(`day`, 2), \
 457              'month': monthNames[month - 1], \
 458              'year': year, \
 459              'weekNum': rjust(`weekNum`, 2), \
 460              'weekNumMonth': weekNumMonth, \
 461              'weekNumMonth2': weekNumMonth2, \
 462              'dayNum': rjust(`dayNum`, 3) }
 463
 464     print "        { { %(day)s, "\
 465           "wxDateTime::%(month)s, "\
 466           "%(year)d }, "\
 467           "%(weekNum)s, "\
 468           "%(weekNumMonth)s, "\
 469           "%(weekNumMonth2)s, "\
 470           "%(dayNum)s }," % data
 471
 472     */
 473     static const WeekNumberTestData weekNumberTestDates[] =
 474     {
 475         { { 27, wxDateTime::Dec, 1966, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 52, 5, 5, 361 },
 476         { { 22, wxDateTime::Jul, 1926, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 29, 4, 4, 203 },
 477         { { 22, wxDateTime::Oct, 2076, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 43, 4, 4, 296 },
 478         { {  1, wxDateTime::Jul, 1967, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 26, 1, 1, 182 },
 479         { {  8, wxDateTime::Nov, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 46, 2, 2, 313 },
 480         { { 21, wxDateTime::Mar, 1920, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 12, 3, 4,  81 },
 481         { {  7, wxDateTime::Jan, 1965, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  1, 2, 2,   7 },
 482         { { 19, wxDateTime::Oct, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 42, 4, 4, 292 },
 483         { { 13, wxDateTime::Aug, 1955, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 32, 2, 2, 225 },
 484         { { 18, wxDateTime::Jul, 2087, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 29, 3, 3, 199 },
 485         { {  2, wxDateTime::Sep, 2028, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 35, 1, 1, 246 },
 486         { { 28, wxDateTime::Jul, 1945, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 30, 5, 4, 209 },
 487         { { 15, wxDateTime::Jun, 1901, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 24, 3, 3, 166 },
 488         { { 10, wxDateTime::Oct, 1939, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 41, 3, 2, 283 },
 489         { {  3, wxDateTime::Dec, 1965, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 48, 1, 1, 337 },
 490         { { 23, wxDateTime::Feb, 1940, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  8, 4, 4,  54 },
 491         { {  2, wxDateTime::Jan, 1987, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  1, 1, 1,   2 },
 492         { { 11, wxDateTime::Aug, 2079, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 32, 2, 2, 223 },
 493         { {  2, wxDateTime::Feb, 2063, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  5, 1, 1,  33 },
 494         { { 16, wxDateTime::Oct, 1942, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 }, 42, 3, 3, 289 },
 495         { { 30, wxDateTime::Dec, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  1, 5, 5, 364 },
 496         { {  2, wxDateTime::Jan, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },  1, 1, 1,   2 },
 497     };
 498
 499     for ( size_t n = 0; n < WXSIZEOF(weekNumberTestDates); n++ )
 500     {
 501         const WeekNumberTestData& wn = weekNumberTestDates[n];
 502         const Date& d = wn.date;
 503
 504         wxDateTime dt = d.DT();
 505
 506         wxDateTime::wxDateTime_t
 507             week = dt.GetWeekOfYear(wxDateTime::Monday_First),
 508             wmon = dt.GetWeekOfMonth(wxDateTime::Monday_First),
 509             wmon2 = dt.GetWeekOfMonth(wxDateTime::Sunday_First),
 510             dnum = dt.GetDayOfYear();
 511
 512         CPPUNIT_ASSERT( dnum == wn.dnum );
 513         CPPUNIT_ASSERT( wmon == wn.wmon );
 514         CPPUNIT_ASSERT( wmon2 == wn.wmon2 );
 515         CPPUNIT_ASSERT( week == wn.week );
 516
 517         int year = d.year;
 518         if ( week == 1 && d.month != wxDateTime::Jan )
 519         {
 520             // this means we're in the first week of the next year
 521             year++;
 522         }
 523
 524         wxDateTime
 525             dt2 = wxDateTime::SetToWeekOfYear(year, week, dt.GetWeekDay());
 526         CPPUNIT_ASSERT( dt2 == dt );
 527     }
 528 }
 529
 530 // test DST applicability
 531 void DateTimeTestCase::TestTimeDST()
 532 {
 533     // taken from http://www.energy.ca.gov/daylightsaving.html
 534     static const Date datesDST[2][2004 - 1900 + 1] =
 535     {
 536         {
 537             { 1, wxDateTime::Apr, 1990, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 538             { 7, wxDateTime::Apr, 1991, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 539             { 5, wxDateTime::Apr, 1992, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 540             { 4, wxDateTime::Apr, 1993, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 541             { 3, wxDateTime::Apr, 1994, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 542             { 2, wxDateTime::Apr, 1995, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 543             { 7, wxDateTime::Apr, 1996, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 544             { 6, wxDateTime::Apr, 1997, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 545             { 5, wxDateTime::Apr, 1998, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 546             { 4, wxDateTime::Apr, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 547             { 2, wxDateTime::Apr, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 548             { 1, wxDateTime::Apr, 2001, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 549             { 7, wxDateTime::Apr, 2002, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 550             { 6, wxDateTime::Apr, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 551             { 4, wxDateTime::Apr, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 552         },
 553         {
 554             { 28, wxDateTime::Oct, 1990, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 555             { 27, wxDateTime::Oct, 1991, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 556             { 25, wxDateTime::Oct, 1992, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 557             { 31, wxDateTime::Oct, 1993, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 558             { 30, wxDateTime::Oct, 1994, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 559             { 29, wxDateTime::Oct, 1995, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 560             { 27, wxDateTime::Oct, 1996, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 561             { 26, wxDateTime::Oct, 1997, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 562             { 25, wxDateTime::Oct, 1998, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 563             { 31, wxDateTime::Oct, 1999, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 564             { 29, wxDateTime::Oct, 2000, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 565             { 28, wxDateTime::Oct, 2001, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 566             { 27, wxDateTime::Oct, 2002, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 567             { 26, wxDateTime::Oct, 2003, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 568             { 31, wxDateTime::Oct, 2004, 0, 0, 0, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 569         }
 570     };
 571
 572     for ( int year = 1990; year < 2005; year++ )
 573     {
 574         wxDateTime dtBegin = wxDateTime::GetBeginDST(year, wxDateTime::USA),
 575                    dtEnd = wxDateTime::GetEndDST(year, wxDateTime::USA);
 576
 577         size_t n = year - 1990;
 578         const Date& dBegin = datesDST[0][n];
 579         const Date& dEnd = datesDST[1][n];
 580
 581         CPPUNIT_ASSERT( dBegin.SameDay(dtBegin.GetTm()) );
 582         CPPUNIT_ASSERT( dEnd.SameDay(dtEnd.GetTm()) );
 583     }
 584 }
 585
 586 // test wxDateTime -> text conversion
 587 void DateTimeTestCase::TestTimeFormat()
 588 {
 589     // some information may be lost during conversion, so store what kind
 590     // of info should we recover after a round trip
 591     enum CompareKind
 592     {
 593         CompareNone,        // don't try comparing
 594         CompareBoth,        // dates and times should be identical
 595         CompareDate,        // dates only
 596         CompareTime         // time only
 597     };
 598
 599     const int  WORKS_WITH_2DIGIT_YEAR(1);
 600     static const struct
 601     {
 602         CompareKind compareKind;
 603         long  flagsneeded;
 604         const wxChar *format;
 605     } formatTestFormats[] =
 606     {
 607        { CompareBoth,0 , _T("---> %c") }, //Assumes %c show a 4digit year.
 608        { CompareDate,0, _T("Date is %A, %d of %B, in year %Y") },
 609        { CompareBoth,WORKS_WITH_2DIGIT_YEAR, _T("Date is %x, time is %X") },
 610        { CompareTime,0, _T("Time is %H:%M:%S or %I:%M:%S %p") },
 611        { CompareNone,0, _T("The day of year: %j, the week of year: %W") },
 612        { CompareDate,0, _T("ISO date without separators: %Y%m%d") },
 613     };
 614
 615     static const Date formatTestDates[] =
 616     {
 617         { 29, wxDateTime::May, 1976, 18, 30, 00, 0.0, wxDateTime::Inv_WeekDay, 0, 0 , WORKS_WITH_2DIGIT_YEAR},
 618         { 31, wxDateTime::Dec, 1999, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay, 0, 0 , WORKS_WITH_2DIGIT_YEAR },
 619         {  6, wxDateTime::Feb, 1937, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay, 0, 0 ,0 },
 620         {  6, wxDateTime::Feb, 1856, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay, 0, 0 ,0 },
 621         {  6, wxDateTime::Feb, 1857, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay, 0, 0 ,0 },
 622         { 29, wxDateTime::May, 2076, 18, 30, 00, 0.0, wxDateTime::Inv_WeekDay, 0, 0 ,0 },
 623         { 29, wxDateTime::Feb, 2400, 02, 15, 25, 0.0, wxDateTime::Inv_WeekDay, 0, 0 ,0 },
 624 #if 0
 625         // Need to add support for BCE dates.
 626         { 01, wxDateTime::Jan,  -52, 03, 16, 47, 0.0, wxDateTime::Inv_WeekDay, 0, 0 ,0 },
 627 #endif
 628     };
 629
 630     for ( size_t d = 0; d < WXSIZEOF(formatTestDates) + 1; d++ )
 631     {
 632         wxDateTime dt = d == 0 ? wxDateTime::Now() : formatTestDates[d - 1].DT();
 633         for ( size_t n = 0; n < WXSIZEOF(formatTestFormats); n++ )
 634         {
 635             //Skip test if date hasn't got the required flags.
 636             if ((d!=0) && !(formatTestDates[d - 1].IsSet(formatTestFormats[n].flagsneeded))) continue;
 637
 638             wxString s = dt.Format(formatTestFormats[n].format);
 639             // what can we recover?
 640             int kind = formatTestFormats[n].compareKind;
 641
 642             // convert back
 643             wxDateTime dt2;
 644             const wxChar *result = dt2.ParseFormat(s, formatTestFormats[n].format);
 645             if ( !result )
 646             {
 647                 // converion failed - should it have?
 648                 CPPUNIT_ASSERT( kind == CompareNone );
 649             }
 650             else // conversion succeeded
 651             {
 652                 // should have parsed the entire string
 653                 CPPUNIT_ASSERT( !*result );
 654
 655                 switch ( kind )
 656                 {
 657                     case CompareBoth:
 658                         CPPUNIT_ASSERT( dt2 == dt );
 659                         break;
 660
 661                     case CompareDate:
 662                         CPPUNIT_ASSERT( dt.IsSameDate(dt2) );
 663                         break;
 664
 665                     case CompareTime:
 666                         CPPUNIT_ASSERT( dt.IsSameTime(dt2) );
 667                         break;
 668                 }
 669             }
 670         }
 671     }
 672 }
 673
 674 void DateTimeTestCase::TestTimeSpanFormat()
 675 {
 676     static const struct TimeSpanFormatTestData
 677     {
 678         long h, min, sec, msec;
 679         const wxChar *fmt;
 680         const wxChar *result;
 681     } testSpans[] =
 682     {
 683         { 12, 34, 56, 789, _T("%H:%M:%S.%l"),   _T("12:34:56.789")          },
 684         {  1,  2,  3,   0, _T("%H:%M:%S"),      _T("01:02:03")              },
 685         {  1,  2,  3,   0, _T("%S"),            _T("3723")                  },
 686     };
 687
 688     for ( size_t n = 0; n < WXSIZEOF(testSpans); n++ )
 689     {
 690         const TimeSpanFormatTestData& td = testSpans[n];
 691         wxTimeSpan ts(td.h, td.min, td.sec, td.msec);
 692         CPPUNIT_ASSERT_EQUAL( wxString(td.result), ts.Format(td.fmt) );
 693     }
 694 }
 695
 696 void DateTimeTestCase::TestTimeTicks()
 697 {
 698     for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
 699     {
 700         const Date& d = testDates[n];
 701         if ( d.ticks == -1 )
 702             continue;
 703
 704         wxDateTime dt = d.DT();
 705         //RN:  Translate according to test's time zone
 706         //2nd param is to ignore DST - it's already factored
 707         //into Vadim's tests
 708         dt.MakeTimezone(wxDateTime::WEST, true);
 709         long ticks = (dt.GetValue() / 1000).ToLong();
 710         CPPUNIT_ASSERT( ticks == d.ticks );
 711
 712         dt = d.DT().FromTimezone(wxDateTime::GMT0);
 713         ticks = (dt.GetValue() / 1000).ToLong();
 714         CPPUNIT_ASSERT( ticks == d.gmticks );
 715     }
 716 }
 717
 718 // test parsing dates in RFC822 format
 719 void DateTimeTestCase::TestParceRFC822()
 720 {
 721     static const struct ParseTestData
 722     {
 723         const wxChar *rfc822;
 724         Date date;              // NB: this should be in UTC
 725         bool good;
 726     } parseTestDates[] =
 727     {
 728         {
 729             _T("Sat, 18 Dec 1999 00:46:40 +0100"),
 730             { 17, wxDateTime::Dec, 1999, 23, 46, 40, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 731             true
 732         },
 733         {
 734             _T("Wed, 1 Dec 1999 05:17:20 +0300"),
 735             {  1, wxDateTime::Dec, 1999, 2, 17, 20, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 736             true
 737         },
 738         {
 739             _T("Sun, 28 Aug 2005 03:31:30 +0200"),
 740             {  28, wxDateTime::Aug, 2005, 1, 31, 30, 0.0, wxDateTime::Inv_WeekDay, 0, 0 },
 741             true
 742         },
 743     };
 744
 745     for ( size_t n = 0; n < WXSIZEOF(parseTestDates); n++ )
 746     {
 747         wxDateTime dt;
 748         if ( dt.ParseRfc822Date(parseTestDates[n].rfc822) )
 749         {
 750             CPPUNIT_ASSERT( parseTestDates[n].good );
 751
 752             wxDateTime dtReal = parseTestDates[n].date.DT().FromUTC();
 753             CPPUNIT_ASSERT_EQUAL( dtReal, dt );
 754         }
 755         else // failed to parse
 756         {
 757             CPPUNIT_ASSERT( !parseTestDates[n].good );
 758         }
 759     }
 760 }
 761
 762 // test parsing dates in free format
 763 void DateTimeTestCase::TestDateParse()
 764 {
 765     static const struct ParseTestData
 766     {
 767         const wxChar *str;
 768         Date date;              // NB: this should be in UTC
 769         bool good;
 770     } parseTestDates[] =
 771     {
 772         { _T("21 Mar 2006"), { 21, wxDateTime::Mar, 2006 }, true },
 773         { _T("29 Feb 1976"), { 29, wxDateTime::Feb, 1976 }, true },
 774         { _T("Feb 29 1976"), { 29, wxDateTime::Feb, 1976 }, true },
 775         { _T("31/03/06"),    { 31, wxDateTime::Mar,    6 }, true },
 776         { _T("31/03/2006"),  { 31, wxDateTime::Mar, 2006 }, true },
 777
 778         // some invalid ones too
 779         { _T("29 Feb 2006") },
 780         { _T("31/04/06") },
 781         { _T("bloordyblop") }
 782     };
 783
 784     // special cases
 785     wxDateTime dt;
 786     CPPUNIT_ASSERT( dt.ParseDate(_T("today")) );
 787     CPPUNIT_ASSERT_EQUAL( wxDateTime::Today(), dt );
 788
 789     for ( size_t n = 0; n < WXSIZEOF(parseTestDates); n++ )
 790     {
 791         wxDateTime dt;
 792         if ( dt.ParseDate(parseTestDates[n].str) )
 793         {
 794             CPPUNIT_ASSERT( parseTestDates[n].good );
 795
 796             CPPUNIT_ASSERT_EQUAL( parseTestDates[n].date.DT(), dt );
 797         }
 798         else // failed to parse
 799         {
 800             CPPUNIT_ASSERT( !parseTestDates[n].good );
 801         }
 802     }
 803 }
 804
 805 void DateTimeTestCase::TestTimeArithmetics()
 806 {
 807     static const wxDateSpan testArithmData[] =
 808     {
 809         wxDateSpan::Day(),
 810         wxDateSpan::Week(),
 811         wxDateSpan::Month(),
 812         wxDateSpan::Year(),
 813     };
 814
 815     // the test will *not* work with arbitrary date!
 816     wxDateTime dt(2, wxDateTime::Dec, 1999),
 817                dt1,
 818                dt2;
 819
 820     for ( size_t n = 0; n < WXSIZEOF(testArithmData); n++ )
 821     {
 822         const wxDateSpan& span = testArithmData[n];
 823         dt1 = dt + span;
 824         dt2 = dt - span;
 825
 826         CPPUNIT_ASSERT( dt1 - span == dt );
 827         CPPUNIT_ASSERT( dt2 + span == dt );
 828         CPPUNIT_ASSERT( dt2 + 2*span == dt1 );
 829     }
 830 }
 831
 832 void DateTimeTestCase::TestDSTBug()
 833 {
 834     /////////////////////////
 835     // Test GetEndDST()
 836     wxDateTime dt = wxDateTime::GetEndDST(2004);
 837     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
 838     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
 839     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
 840     CPPUNIT_ASSERT_EQUAL(2, (int)dt.GetHour());
 841     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
 842     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
 843     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
 844
 845     /////////////////////////
 846     // Test ResetTime()
 847     dt.SetHour(5);
 848     CPPUNIT_ASSERT_EQUAL(5, (int)dt.GetHour());
 849     dt.ResetTime();
 850     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
 851     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
 852     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
 853     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetHour());
 854     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
 855     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
 856     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
 857
 858     dt.Set(1, 0, 0, 0);
 859     CPPUNIT_ASSERT_EQUAL(1, (int)dt.GetHour());
 860
 861     /////////////////////////
 862     // Test Today()
 863 #ifdef CHANGE_SYSTEM_DATE
 864     {
 865         DateChanger change(2004, 10, 31, 5, 0, 0);
 866         dt = wxDateTime::Today();
 867     }
 868
 869     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
 870     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
 871     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
 872     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetHour());
 873     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMinute());
 874     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
 875     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
 876
 877     /////////////////////////
 878     // Test Set(hour, minute, second, milli)
 879     wxDateTime dt2;
 880     {
 881         DateChanger change(2004, 10, 31, 5, 0, 0);
 882         dt.Set(1, 30, 0, 0);
 883         dt2.Set(5, 30, 0, 0);
 884     }
 885
 886     CPPUNIT_ASSERT_EQUAL(31, (int)dt.GetDay());
 887     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt.GetMonth());
 888     CPPUNIT_ASSERT_EQUAL(2004, (int)dt.GetYear());
 889     CPPUNIT_ASSERT_EQUAL(1, (int)dt.GetHour());
 890     CPPUNIT_ASSERT_EQUAL(30, (int)dt.GetMinute());
 891     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetSecond());
 892     CPPUNIT_ASSERT_EQUAL(0, (int)dt.GetMillisecond());
 893
 894     CPPUNIT_ASSERT_EQUAL(31, (int)dt2.GetDay());
 895     CPPUNIT_ASSERT_EQUAL(wxDateTime::Oct, dt2.GetMonth());
 896     CPPUNIT_ASSERT_EQUAL(2004, (int)dt2.GetYear());
 897     CPPUNIT_ASSERT_EQUAL(5, (int)dt2.GetHour());
 898     CPPUNIT_ASSERT_EQUAL(30, (int)dt2.GetMinute());
 899     CPPUNIT_ASSERT_EQUAL(0, (int)dt2.GetSecond());
 900     CPPUNIT_ASSERT_EQUAL(0, (int)dt2.GetMillisecond());
 901 #endif // CHANGE_SYSTEM_DATE
 902 }
 903
 904 #endif // wxUSE_DATETIME