+///////////////////////////////////////////////////////////////////////////////
+// Name: tests/datetime/datetime.cpp
+// Purpose: wxDateTime unit test
+// Author: Vadim Zeitlin
+// Created: 2004-06-23 (extracted from samples/console/console.cpp)
+// RCS-ID: $Id$
+// Copyright: (c) 2004 Vadim Zeitlin <vadim@wxwindows.org>
+///////////////////////////////////////////////////////////////////////////////
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+ #pragma hdrstop
+#endif
+
+#ifndef WX_PRECOMP
+#endif // WX_PRECOMP
+
+#include "wx/datetime.h"
+
+#include "wx/cppunit.h"
+
+// ----------------------------------------------------------------------------
+// broken down date representation used for testing
+// ----------------------------------------------------------------------------
+
+struct Date
+{
+ wxDateTime::wxDateTime_t day;
+ wxDateTime::Month month;
+ int year;
+ wxDateTime::wxDateTime_t hour, min, sec;
+ double jdn;
+ wxDateTime::WeekDay wday;
+ time_t gmticks, ticks;
+
+ void Init(const wxDateTime::Tm& tm)
+ {
+ day = tm.mday;
+ month = tm.mon;
+ year = tm.year;
+ hour = tm.hour;
+ min = tm.min;
+ sec = tm.sec;
+ jdn = 0.0;
+ gmticks = ticks = -1;
+ }
+
+ wxDateTime DT() const
+ { return wxDateTime(day, month, year, hour, min, sec); }
+
+ bool SameDay(const wxDateTime::Tm& tm) const
+ {
+ return day == tm.mday && month == tm.mon && year == tm.year;
+ }
+
+ wxString Format() const
+ {
+ wxString s;
+ s.Printf(_T("%02d:%02d:%02d %10s %02d, %4d%s"),
+ hour, min, sec,
+ wxDateTime::GetMonthName(month).c_str(),
+ day,
+ abs(wxDateTime::ConvertYearToBC(year)),
+ year > 0 ? _T("AD") : _T("BC"));
+ return s;
+ }
+
+ wxString FormatDate() const
+ {
+ wxString s;
+ s.Printf(_T("%02d-%s-%4d%s"),
+ day,
+ wxDateTime::GetMonthName(month, wxDateTime::Name_Abbr).c_str(),
+ abs(wxDateTime::ConvertYearToBC(year)),
+ year > 0 ? _T("AD") : _T("BC"));
+ return s;
+ }
+};
+
+// ----------------------------------------------------------------------------
+// test data
+// ----------------------------------------------------------------------------
+
+static const Date testDates[] =
+{
+ { 1, wxDateTime::Jan, 1970, 00, 00, 00, 2440587.5, wxDateTime::Thu, 0, -3600 },
+ { 7, wxDateTime::Feb, 2036, 00, 00, 00, 2464730.5, wxDateTime::Thu, -1, -1 },
+ { 8, wxDateTime::Feb, 2036, 00, 00, 00, 2464731.5, wxDateTime::Fri, -1, -1 },
+ { 1, wxDateTime::Jan, 2037, 00, 00, 00, 2465059.5, wxDateTime::Thu, -1, -1 },
+ { 1, wxDateTime::Jan, 2038, 00, 00, 00, 2465424.5, wxDateTime::Fri, -1, -1 },
+ { 21, wxDateTime::Jan, 2222, 00, 00, 00, 2532648.5, wxDateTime::Mon, -1, -1 },
+ { 29, wxDateTime::May, 1976, 12, 00, 00, 2442928.0, wxDateTime::Sat, 202219200, 202212000 },
+ { 29, wxDateTime::Feb, 1976, 00, 00, 00, 2442837.5, wxDateTime::Sun, 194400000, 194396400 },
+ { 1, wxDateTime::Jan, 1900, 12, 00, 00, 2415021.0, wxDateTime::Mon, -1, -1 },
+ { 1, wxDateTime::Jan, 1900, 00, 00, 00, 2415020.5, wxDateTime::Mon, -1, -1 },
+ { 15, wxDateTime::Oct, 1582, 00, 00, 00, 2299160.5, wxDateTime::Fri, -1, -1 },
+ { 4, wxDateTime::Oct, 1582, 00, 00, 00, 2299149.5, wxDateTime::Mon, -1, -1 },
+ { 1, wxDateTime::Mar, 1, 00, 00, 00, 1721484.5, wxDateTime::Thu, -1, -1 },
+ { 1, wxDateTime::Jan, 1, 00, 00, 00, 1721425.5, wxDateTime::Mon, -1, -1 },
+ { 31, wxDateTime::Dec, 0, 00, 00, 00, 1721424.5, wxDateTime::Sun, -1, -1 },
+ { 1, wxDateTime::Jan, 0, 00, 00, 00, 1721059.5, wxDateTime::Sat, -1, -1 },
+ { 12, wxDateTime::Aug, -1234, 00, 00, 00, 1270573.5, wxDateTime::Fri, -1, -1 },
+ { 12, wxDateTime::Aug, -4000, 00, 00, 00, 260313.5, wxDateTime::Sat, -1, -1 },
+ { 24, wxDateTime::Nov, -4713, 00, 00, 00, -0.5, wxDateTime::Mon, -1, -1 },
+};
+
+
+// ----------------------------------------------------------------------------
+// test class
+// ----------------------------------------------------------------------------
+
+class DateTimeTestCase : public CppUnit::TestCase
+{
+public:
+ DateTimeTestCase() { }
+
+private:
+ CPPUNIT_TEST_SUITE( DateTimeTestCase );
+ CPPUNIT_TEST( TestLeapYears );
+ CPPUNIT_TEST( TestTimeSet );
+ CPPUNIT_TEST( TestTimeJDN );
+ CPPUNIT_TEST( TestTimeWNumber );
+ CPPUNIT_TEST( TestTimeWDays );
+ CPPUNIT_TEST( TestTimeDST );
+ CPPUNIT_TEST( TestTimeFormat );
+ CPPUNIT_TEST( TestTimeTicks );
+ CPPUNIT_TEST( TestTimeParse );
+ CPPUNIT_TEST( TestTimeArithmetics );
+ CPPUNIT_TEST_SUITE_END();
+
+ void TestLeapYears();
+ void TestTimeSet();
+ void TestTimeJDN();
+ void TestTimeWNumber();
+ void TestTimeWDays();
+ void TestTimeDST();
+ void TestTimeFormat();
+ void TestTimeTicks();
+ void TestTimeParse();
+ void TestTimeArithmetics();
+
+ DECLARE_NO_COPY_CLASS(DateTimeTestCase)
+};
+
+// register in the unnamed registry so that these tests are run by default
+CPPUNIT_TEST_SUITE_REGISTRATION( DateTimeTestCase );
+
+// also include in it's own registry so that these tests can be run alone
+CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( DateTimeTestCase, "DateTimeTestCase" );
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+// test leap years detection
+void DateTimeTestCase::TestLeapYears()
+{
+ static const struct LeapYearTestData
+ {
+ int year;
+ bool isLeap;
+ } years[] =
+ {
+ { 1900, false },
+ { 1990, false },
+ { 1976, true },
+ { 2000, true },
+ { 2030, false },
+ { 1984, true },
+ { 2100, false },
+ { 2400, true },
+ };
+
+ for ( size_t n = 0; n < WXSIZEOF(years); n++ )
+ {
+ const LeapYearTestData& y = years[n];
+
+ CPPUNIT_ASSERT( wxDateTime::IsLeapYear(y.year) == y.isLeap );
+ }
+}
+
+// test constructing wxDateTime objects
+void DateTimeTestCase::TestTimeSet()
+{
+ for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
+ {
+ const Date& d1 = testDates[n];
+ wxDateTime dt = d1.DT();
+
+ Date d2;
+ d2.Init(dt.GetTm());
+
+ wxString s1 = d1.Format(),
+ s2 = d2.Format();
+
+ CPPUNIT_ASSERT( s1 == s2 );
+ }
+}
+
+// test conversions to JDN &c
+void DateTimeTestCase::TestTimeJDN()
+{
+ for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
+ {
+ const Date& d = testDates[n];
+ wxDateTime dt(d.day, d.month, d.year, d.hour, d.min, d.sec);
+ double jdn = dt.GetJulianDayNumber();
+
+ CPPUNIT_ASSERT( jdn == d.jdn );
+ }
+}
+
+// test week days computation
+void DateTimeTestCase::TestTimeWDays()
+{
+ // test GetWeekDay()
+ size_t n;
+ for ( n = 0; n < WXSIZEOF(testDates); n++ )
+ {
+ const Date& d = testDates[n];
+ wxDateTime dt(d.day, d.month, d.year, d.hour, d.min, d.sec);
+
+ wxDateTime::WeekDay wday = dt.GetWeekDay();
+ CPPUNIT_ASSERT( wday == d.wday );
+ }
+
+ // test SetToWeekDay()
+ struct WeekDateTestData
+ {
+ Date date; // the real date (precomputed)
+ int nWeek; // its week index in the month
+ wxDateTime::WeekDay wday; // the weekday
+ wxDateTime::Month month; // the month
+ int year; // and the year
+
+ wxString Format() const
+ {
+ wxString s, which;
+ switch ( nWeek < -1 ? -nWeek : nWeek )
+ {
+ case 1: which = _T("first"); break;
+ case 2: which = _T("second"); break;
+ case 3: which = _T("third"); break;
+ case 4: which = _T("fourth"); break;
+ case 5: which = _T("fifth"); break;
+
+ case -1: which = _T("last"); break;
+ }
+
+ if ( nWeek < -1 )
+ {
+ which += _T(" from end");
+ }
+
+ s.Printf(_T("The %s %s of %s in %d"),
+ which.c_str(),
+ wxDateTime::GetWeekDayName(wday).c_str(),
+ wxDateTime::GetMonthName(month).c_str(),
+ year);
+
+ return s;
+ }
+ };
+
+ // the array data was generated by the following python program
+ /*
+from DateTime import *
+from whrandom import *
+from string import *
+
+monthNames = [ 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' ]
+wdayNames = [ 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun' ]
+
+week = DateTimeDelta(7)
+
+for n in range(20):
+ year = randint(1900, 2100)
+ month = randint(1, 12)
+ day = randint(1, 28)
+ dt = DateTime(year, month, day)
+ wday = dt.day_of_week
+
+ countFromEnd = choice([-1, 1])
+ weekNum = 0;
+
+ while dt.month is month:
+ dt = dt - countFromEnd * week
+ weekNum = weekNum + countFromEnd
+
+ data = { 'day': rjust(`day`, 2), 'month': monthNames[month - 1], 'year': year, 'weekNum': rjust(`weekNum`, 2), 'wday': wdayNames[wday] }
+
+ print "{ { %(day)s, wxDateTime::%(month)s, %(year)d }, %(weekNum)d, "\
+ "wxDateTime::%(wday)s, wxDateTime::%(month)s, %(year)d }," % data
+ */
+
+ static const WeekDateTestData weekDatesTestData[] =
+ {
+ { { 20, wxDateTime::Mar, 2045 }, 3, wxDateTime::Mon, wxDateTime::Mar, 2045 },
+ { { 5, wxDateTime::Jun, 1985 }, -4, wxDateTime::Wed, wxDateTime::Jun, 1985 },
+ { { 12, wxDateTime::Nov, 1961 }, -3, wxDateTime::Sun, wxDateTime::Nov, 1961 },
+ { { 27, wxDateTime::Feb, 2093 }, -1, wxDateTime::Fri, wxDateTime::Feb, 2093 },
+ { { 4, wxDateTime::Jul, 2070 }, -4, wxDateTime::Fri, wxDateTime::Jul, 2070 },
+ { { 2, wxDateTime::Apr, 1906 }, -5, wxDateTime::Mon, wxDateTime::Apr, 1906 },
+ { { 19, wxDateTime::Jul, 2023 }, -2, wxDateTime::Wed, wxDateTime::Jul, 2023 },
+ { { 5, wxDateTime::May, 1958 }, -4, wxDateTime::Mon, wxDateTime::May, 1958 },
+ { { 11, wxDateTime::Aug, 1900 }, 2, wxDateTime::Sat, wxDateTime::Aug, 1900 },
+ { { 14, wxDateTime::Feb, 1945 }, 2, wxDateTime::Wed, wxDateTime::Feb, 1945 },
+ { { 25, wxDateTime::Jul, 1967 }, -1, wxDateTime::Tue, wxDateTime::Jul, 1967 },
+ { { 9, wxDateTime::May, 1916 }, -4, wxDateTime::Tue, wxDateTime::May, 1916 },
+ { { 20, wxDateTime::Jun, 1927 }, 3, wxDateTime::Mon, wxDateTime::Jun, 1927 },
+ { { 2, wxDateTime::Aug, 2000 }, 1, wxDateTime::Wed, wxDateTime::Aug, 2000 },
+ { { 20, wxDateTime::Apr, 2044 }, 3, wxDateTime::Wed, wxDateTime::Apr, 2044 },
+ { { 20, wxDateTime::Feb, 1932 }, -2, wxDateTime::Sat, wxDateTime::Feb, 1932 },
+ { { 25, wxDateTime::Jul, 2069 }, 4, wxDateTime::Thu, wxDateTime::Jul, 2069 },
+ { { 3, wxDateTime::Apr, 1925 }, 1, wxDateTime::Fri, wxDateTime::Apr, 1925 },
+ { { 21, wxDateTime::Mar, 2093 }, 3, wxDateTime::Sat, wxDateTime::Mar, 2093 },
+ { { 3, wxDateTime::Dec, 2074 }, -5, wxDateTime::Mon, wxDateTime::Dec, 2074 },
+ };
+
+ static const wxChar *fmt = _T("%d-%b-%Y");
+
+ wxDateTime dt;
+ for ( n = 0; n < WXSIZEOF(weekDatesTestData); n++ )
+ {
+ const WeekDateTestData& wd = weekDatesTestData[n];
+
+ dt.SetToWeekDay(wd.wday, wd.nWeek, wd.month, wd.year);
+
+ const Date& d = wd.date;
+ CPPUNIT_ASSERT( d.SameDay(dt.GetTm()) );
+ }
+}
+
+// test the computation of (ISO) week numbers
+void DateTimeTestCase::TestTimeWNumber()
+{
+ struct WeekNumberTestData
+ {
+ Date date; // the date
+ wxDateTime::wxDateTime_t week; // the week number in the year
+ wxDateTime::wxDateTime_t wmon; // the week number in the month
+ wxDateTime::wxDateTime_t wmon2; // same but week starts with Sun
+ wxDateTime::wxDateTime_t dnum; // day number in the year
+ };
+
+ // data generated with the following python script:
+ /*
+from DateTime import *
+from whrandom import *
+from string import *
+
+monthNames = [ 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' ]
+wdayNames = [ 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun' ]
+
+def GetMonthWeek(dt):
+ weekNumMonth = dt.iso_week[1] - DateTime(dt.year, dt.month, 1).iso_week[1] + 1
+ if weekNumMonth < 0:
+ weekNumMonth = weekNumMonth + 53
+ return weekNumMonth
+
+def GetLastSundayBefore(dt):
+ if dt.iso_week[2] == 7:
+ return dt
+ else:
+ return dt - DateTimeDelta(dt.iso_week[2])
+
+for n in range(20):
+ year = randint(1900, 2100)
+ month = randint(1, 12)
+ day = randint(1, 28)
+ dt = DateTime(year, month, day)
+ dayNum = dt.day_of_year
+ weekNum = dt.iso_week[1]
+ weekNumMonth = GetMonthWeek(dt)
+
+ weekNumMonth2 = 0
+ dtSunday = GetLastSundayBefore(dt)
+
+ while dtSunday >= GetLastSundayBefore(DateTime(dt.year, dt.month, 1)):
+ weekNumMonth2 = weekNumMonth2 + 1
+ dtSunday = dtSunday - DateTimeDelta(7)
+
+ data = { 'day': rjust(`day`, 2), \
+ 'month': monthNames[month - 1], \
+ 'year': year, \
+ 'weekNum': rjust(`weekNum`, 2), \
+ 'weekNumMonth': weekNumMonth, \
+ 'weekNumMonth2': weekNumMonth2, \
+ 'dayNum': rjust(`dayNum`, 3) }
+
+ print " { { %(day)s, "\
+ "wxDateTime::%(month)s, "\
+ "%(year)d }, "\
+ "%(weekNum)s, "\
+ "%(weekNumMonth)s, "\
+ "%(weekNumMonth2)s, "\
+ "%(dayNum)s }," % data
+
+ */
+ static const WeekNumberTestData weekNumberTestDates[] =
+ {
+ { { 27, wxDateTime::Dec, 1966 }, 52, 5, 5, 361 },
+ { { 22, wxDateTime::Jul, 1926 }, 29, 4, 4, 203 },
+ { { 22, wxDateTime::Oct, 2076 }, 43, 4, 4, 296 },
+ { { 1, wxDateTime::Jul, 1967 }, 26, 1, 1, 182 },
+ { { 8, wxDateTime::Nov, 2004 }, 46, 2, 2, 313 },
+ { { 21, wxDateTime::Mar, 1920 }, 12, 3, 4, 81 },
+ { { 7, wxDateTime::Jan, 1965 }, 1, 2, 2, 7 },
+ { { 19, wxDateTime::Oct, 1999 }, 42, 4, 4, 292 },
+ { { 13, wxDateTime::Aug, 1955 }, 32, 2, 2, 225 },
+ { { 18, wxDateTime::Jul, 2087 }, 29, 3, 3, 199 },
+ { { 2, wxDateTime::Sep, 2028 }, 35, 1, 1, 246 },
+ { { 28, wxDateTime::Jul, 1945 }, 30, 5, 4, 209 },
+ { { 15, wxDateTime::Jun, 1901 }, 24, 3, 3, 166 },
+ { { 10, wxDateTime::Oct, 1939 }, 41, 3, 2, 283 },
+ { { 3, wxDateTime::Dec, 1965 }, 48, 1, 1, 337 },
+ { { 23, wxDateTime::Feb, 1940 }, 8, 4, 4, 54 },
+ { { 2, wxDateTime::Jan, 1987 }, 1, 1, 1, 2 },
+ { { 11, wxDateTime::Aug, 2079 }, 32, 2, 2, 223 },
+ { { 2, wxDateTime::Feb, 2063 }, 5, 1, 1, 33 },
+ { { 16, wxDateTime::Oct, 1942 }, 42, 3, 3, 289 },
+ };
+
+ for ( size_t n = 0; n < WXSIZEOF(weekNumberTestDates); n++ )
+ {
+ const WeekNumberTestData& wn = weekNumberTestDates[n];
+ const Date& d = wn.date;
+
+ wxDateTime dt = d.DT();
+
+ wxDateTime::wxDateTime_t
+ week = dt.GetWeekOfYear(wxDateTime::Monday_First),
+ wmon = dt.GetWeekOfMonth(wxDateTime::Monday_First),
+ wmon2 = dt.GetWeekOfMonth(wxDateTime::Sunday_First),
+ dnum = dt.GetDayOfYear();
+
+ CPPUNIT_ASSERT( dnum == wn.dnum );
+ CPPUNIT_ASSERT( wmon == wn.wmon );
+ CPPUNIT_ASSERT( wmon2 == wn.wmon2 );
+ CPPUNIT_ASSERT( week == wn.week );
+
+ wxDateTime dt2(1, wxDateTime::Jan, d.year);
+ dt2.SetToTheWeek(wn.week, dt.GetWeekDay());
+ CPPUNIT_ASSERT( dt2 == dt );
+ }
+}
+
+// test DST applicability
+void DateTimeTestCase::TestTimeDST()
+{
+ // taken from http://www.energy.ca.gov/daylightsaving.html
+ static const Date datesDST[2][2004 - 1900 + 1] =
+ {
+ {
+ { 1, wxDateTime::Apr, 1990 },
+ { 7, wxDateTime::Apr, 1991 },
+ { 5, wxDateTime::Apr, 1992 },
+ { 4, wxDateTime::Apr, 1993 },
+ { 3, wxDateTime::Apr, 1994 },
+ { 2, wxDateTime::Apr, 1995 },
+ { 7, wxDateTime::Apr, 1996 },
+ { 6, wxDateTime::Apr, 1997 },
+ { 5, wxDateTime::Apr, 1998 },
+ { 4, wxDateTime::Apr, 1999 },
+ { 2, wxDateTime::Apr, 2000 },
+ { 1, wxDateTime::Apr, 2001 },
+ { 7, wxDateTime::Apr, 2002 },
+ { 6, wxDateTime::Apr, 2003 },
+ { 4, wxDateTime::Apr, 2004 },
+ },
+ {
+ { 28, wxDateTime::Oct, 1990 },
+ { 27, wxDateTime::Oct, 1991 },
+ { 25, wxDateTime::Oct, 1992 },
+ { 31, wxDateTime::Oct, 1993 },
+ { 30, wxDateTime::Oct, 1994 },
+ { 29, wxDateTime::Oct, 1995 },
+ { 27, wxDateTime::Oct, 1996 },
+ { 26, wxDateTime::Oct, 1997 },
+ { 25, wxDateTime::Oct, 1998 },
+ { 31, wxDateTime::Oct, 1999 },
+ { 29, wxDateTime::Oct, 2000 },
+ { 28, wxDateTime::Oct, 2001 },
+ { 27, wxDateTime::Oct, 2002 },
+ { 26, wxDateTime::Oct, 2003 },
+ { 31, wxDateTime::Oct, 2004 },
+ }
+ };
+
+ for ( int year = 1990; year < 2005; year++ )
+ {
+ wxDateTime dtBegin = wxDateTime::GetBeginDST(year, wxDateTime::USA),
+ dtEnd = wxDateTime::GetEndDST(year, wxDateTime::USA);
+
+ size_t n = year - 1990;
+ const Date& dBegin = datesDST[0][n];
+ const Date& dEnd = datesDST[1][n];
+
+ CPPUNIT_ASSERT( dBegin.SameDay(dtBegin.GetTm()) );
+ CPPUNIT_ASSERT( dEnd.SameDay(dtEnd.GetTm()) );
+ }
+}
+
+// test wxDateTime -> text conversion
+void DateTimeTestCase::TestTimeFormat()
+{
+ // some information may be lost during conversion, so store what kind
+ // of info should we recover after a round trip
+ enum CompareKind
+ {
+ CompareNone, // don't try comparing
+ CompareBoth, // dates and times should be identical
+ CompareDate, // dates only
+ CompareTime // time only
+ };
+
+ static const struct
+ {
+ CompareKind compareKind;
+ const wxChar *format;
+ } formatTestFormats[] =
+ {
+ { CompareBoth, _T("---> %c") },
+ { CompareDate, _T("Date is %A, %d of %B, in year %Y") },
+ { CompareBoth, _T("Date is %x, time is %X") },
+ { CompareTime, _T("Time is %H:%M:%S or %I:%M:%S %p") },
+ { CompareNone, _T("The day of year: %j, the week of year: %W") },
+ { CompareDate, _T("ISO date without separators: %Y%m%d") },
+ };
+
+ static const Date formatTestDates[] =
+ {
+ { 29, wxDateTime::May, 1976, 18, 30, 00 },
+ { 31, wxDateTime::Dec, 1999, 23, 30, 00 },
+#if 0
+ // this test can't work for other centuries because it uses two digit
+ // years in formats, so don't even try it
+ { 29, wxDateTime::May, 2076, 18, 30, 00 },
+ { 29, wxDateTime::Feb, 2400, 02, 15, 25 },
+ { 01, wxDateTime::Jan, -52, 03, 16, 47 },
+#endif
+ };
+
+ for ( size_t d = 0; d < WXSIZEOF(formatTestDates) + 1; d++ )
+ {
+ wxDateTime dt = d == 0 ? wxDateTime::Now() : formatTestDates[d - 1].DT();
+ for ( size_t n = 0; n < WXSIZEOF(formatTestFormats); n++ )
+ {
+ wxString s = dt.Format(formatTestFormats[n].format);
+
+ // what can we recover?
+ int kind = formatTestFormats[n].compareKind;
+
+ // convert back
+ wxDateTime dt2;
+ const wxChar *result = dt2.ParseFormat(s, formatTestFormats[n].format);
+ if ( !result )
+ {
+ // converion failed - should it have?
+ CPPUNIT_ASSERT( kind == CompareNone );
+ }
+ else // conversion succeeded
+ {
+ // should have parsed the entire string
+ CPPUNIT_ASSERT( !*result );
+
+ switch ( kind )
+ {
+ case CompareBoth:
+ CPPUNIT_ASSERT( dt2 == dt );
+ break;
+
+ case CompareDate:
+ CPPUNIT_ASSERT( dt.IsSameDate(dt2) );
+ break;
+
+ case CompareTime:
+ CPPUNIT_ASSERT( dt.IsSameTime(dt2) );
+ break;
+ }
+ }
+ }
+ }
+}
+
+void DateTimeTestCase::TestTimeTicks()
+{
+ for ( size_t n = 0; n < WXSIZEOF(testDates); n++ )
+ {
+ const Date& d = testDates[n];
+ if ( d.ticks == -1 )
+ continue;
+
+ wxDateTime dt = d.DT();
+ long ticks = (dt.GetValue() / 1000).ToLong();
+ CPPUNIT_ASSERT( ticks == d.ticks );
+
+ dt = d.DT().ToTimezone(wxDateTime::GMT0);
+ ticks = (dt.GetValue() / 1000).ToLong();
+ CPPUNIT_ASSERT( ticks == d.gmticks );
+ }
+}
+
+// test text -> wxDateTime conversion
+void DateTimeTestCase::TestTimeParse()
+{
+ static const struct ParseTestData
+ {
+ const wxChar *format;
+ Date date;
+ bool good;
+ } parseTestDates[] =
+ {
+ { _T("Sat, 18 Dec 1999 00:46:40 +0100"), { 18, wxDateTime::Dec, 1999, 00, 46, 40 }, true },
+ { _T("Wed, 1 Dec 1999 05:17:20 +0300"), { 1, wxDateTime::Dec, 1999, 03, 17, 20 }, true },
+ };
+
+ for ( size_t n = 0; n < WXSIZEOF(parseTestDates); n++ )
+ {
+ const wxChar *format = parseTestDates[n].format;
+
+ wxDateTime dt;
+ if ( dt.ParseRfc822Date(format) )
+ {
+ CPPUNIT_ASSERT( parseTestDates[n].good );
+
+ wxDateTime dtReal = parseTestDates[n].date.DT();
+ CPPUNIT_ASSERT( dt == dtReal );
+ }
+ else // failed to parse
+ {
+ CPPUNIT_ASSERT( !parseTestDates[n].good );
+ }
+ }
+}
+
+void DateTimeTestCase::TestTimeArithmetics()
+{
+ static const wxDateSpan testArithmData[] =
+ {
+ wxDateSpan::Day(),
+ wxDateSpan::Week(),
+ wxDateSpan::Month(),
+ wxDateSpan::Year(),
+ };
+
+ // the test will *not* work with arbitrary date!
+ wxDateTime dt(2, wxDateTime::Dec, 1999),
+ dt1,
+ dt2;
+
+ for ( size_t n = 0; n < WXSIZEOF(testArithmData); n++ )
+ {
+ const wxDateSpan& span = testArithmData[n];
+ dt1 = dt + span;
+ dt2 = dt - span;
+
+ CPPUNIT_ASSERT( dt1 - span == dt );
+ CPPUNIT_ASSERT( dt2 + span == dt );
+ CPPUNIT_ASSERT( dt2 + 2*span == dt1 );
+ }
+}
+