wxLongLong wxGetLocalTimeMillis()
{
return wxGetUTCTimeMillis() - wxGetTimeZone()*MILLISECONDS_PER_SECOND;
}
// 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
CompareYear, // don't compare centuries (fails for 2 digit years)
CompareDate, // dates only
CompareTime // time only
};
static const struct
{
CompareKind compareKind;
const char *format;
} formatTestFormats[] =
{
{ CompareYear, "---> %c" }, // %c could use 2 digit years
{ CompareDate, "Date is %A, %d of %B, in year %Y" },
{ CompareYear, "Date is %x, time is %X" }, // %x could use 2 digits
{ CompareTime, "Time is %H:%M:%S or %I:%M:%S %p" },
{ CompareNone, "The day of year: %j, the week of year: %W" },
{ CompareDate, "ISO date without separators: %Y%m%d" },
{ CompareBoth, "RFC 2822 string: %Y-%m-%d %H:%M:%S.%l %z" },
};
const long timeZonesOffsets[] =
{
wxDateTime::TimeZone(wxDateTime::Local).GetOffset(),
// Fictitious TimeZone offsets to ensure time zone formating and
// interpretation works
-(3600 + 2*60),
3*3600 + 30*60
};
static const Date formatTestDates[] =
{
{ 29, wxDateTime::May, 1976, 18, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
{ 31, wxDateTime::Dec, 1999, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
{ 6, wxDateTime::Feb, 1937, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
{ 6, wxDateTime::Feb, 1856, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
{ 6, wxDateTime::Feb, 1857, 23, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
{ 29, wxDateTime::May, 2076, 18, 30, 00, 0.0, wxDateTime::Inv_WeekDay },
// FIXME: the test with 02:15:25 time doesn't pass because of DST
// computation problems, we get back 03:15:25
{ 29, wxDateTime::Feb, 2400, 04, 15, 25, 0.0, wxDateTime::Inv_WeekDay },
#if 0
// Need to add support for BCE dates.
{ 01, wxDateTime::Jan, -52, 03, 16, 47, 0.0, wxDateTime::Inv_WeekDay },
#endif
};
for ( unsigned idxtz = 0; idxtz < WXSIZEOF(timeZonesOffsets); ++idxtz )
{
wxDateTime::TimeZone tz(timeZonesOffsets[idxtz]);
const bool isLocalTz = tz.GetOffset() == -wxGetTimeZone();
for ( size_t d = 0; d < WXSIZEOF(formatTestDates); d++ )
{
wxDateTime dt = formatTestDates[d].DT();
for ( unsigned n = 0; n < WXSIZEOF(formatTestFormats); n++ )
{
const char *fmt = formatTestFormats[n].format;
// skip the check with %p for those locales which have empty AM/PM strings:
// for those locales it's impossible to pass the test with %p...
wxString am, pm;
wxDateTime::GetAmPmStrings(&am, &pm);
if (am.empty() && pm.empty() && wxStrstr(fmt, "%p") != NULL)
continue;
// what can we recover?
CompareKind kind = formatTestFormats[n].compareKind;
// When using a different time zone we must perform a time zone
// conversion below which doesn't always work correctly, check
// for the cases when it doesn't.
if ( !isLocalTz )
{
// DST computation doesn't work correctly for dates above
// 2038 currently on the systems with 32 bit time_t.
if ( dt.GetYear() >= 2038 )
continue;
// We can't compare just dates nor just times when doing TZ
// conversion as both are affected by the DST: for the
// dates, the DST can switch midnight to 23:00 of the
// previous day while for the times DST can be different
// for the original date and today.
if ( kind == CompareDate || kind == CompareTime )
continue;
}
// do convert date to string
wxString s = dt.Format(fmt, tz);
// convert back
wxDateTime dt2;
const char *result = dt2.ParseFormat(s, fmt);
if ( !result )
{
// conversion failed - should it have?
WX_ASSERT_MESSAGE(
("Test #%u failed: failed to parse \"%s\"", n, s),
kind == CompareNone
);
}
else // conversion succeeded
{
// currently ParseFormat() doesn't support "%Z" and so is
// incapable of parsing time zone part used at the end of date
// representations in many (but not "C") locales, compensate
// for it ourselves by simply consuming and ignoring it
while ( *result && (*result >= 'A' && *result <= 'Z') )
result++;
WX_ASSERT_MESSAGE(
("Test #%u failed: \"%s\" was left unparsed in \"%s\"",
n, result, s),
!*result
);
// Without "%z" we can't recover the time zone used in the
// call to Format() so we need to call MakeFromTimezone()
// explicitly.
if ( !strstr(fmt, "%z") && !isLocalTz )
dt2.MakeFromTimezone(tz);
switch ( kind )
{
case CompareYear:
if ( dt2.GetCentury() != dt.GetCentury() )
{
CPPUNIT_ASSERT_EQUAL(dt.GetYear() % 100,
dt2.GetYear() % 100);
dt2.SetYear(dt.GetYear());
}
// fall through and compare everything
case CompareBoth:
CPPUNIT_ASSERT_EQUAL( dt, dt2 );
break;
case CompareDate:
CPPUNIT_ASSERT( dt.IsSameDate(dt2) );
break;
case CompareTime:
CPPUNIT_ASSERT( dt.IsSameTime(dt2) );
break;
case CompareNone:
wxFAIL_MSG( wxT("unexpected") );
break;
}
}
}
}
}
wxDateTime dt;
#if 0
// special case which was known to fail
CPPUNIT_ASSERT( dt.ParseFormat("02/06/1856", "%x") );
CPPUNIT_ASSERT_EQUAL( 1856, dt.GetYear() );
#endif
// also test %l separately
CPPUNIT_ASSERT( dt.ParseFormat("12:23:45.678", "%H:%M:%S.%l") );
CPPUNIT_ASSERT_EQUAL( 678, dt.GetMillisecond() );
// test special case of %l matching 0 milliseconds
CPPUNIT_ASSERT( dt.ParseFormat("12:23:45.000", "%H:%M:%S.%l") );
CPPUNIT_ASSERT_EQUAL( 0, dt.GetMillisecond() );
// test partially specified dates too
wxDateTime dtDef(26, wxDateTime::Sep, 2008);
CPPUNIT_ASSERT( dt.ParseFormat("17", "%d") );
CPPUNIT_ASSERT_EQUAL( 17, dt.GetDay() );
// test some degenerate cases
CPPUNIT_ASSERT( !dt.ParseFormat("", "%z") );
CPPUNIT_ASSERT( !dt.ParseFormat("", "%%") );
// test compilation of some calls which should compile (and not result in
// ambiguity because of char*<->wxCStrData<->wxString conversions)
wxString s("foo");
CPPUNIT_ASSERT( !dt.ParseFormat("foo") );
CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo")) );
CPPUNIT_ASSERT( !dt.ParseFormat(s) );
dt.ParseFormat(s.c_str()); // Simply test compilation of this one.
CPPUNIT_ASSERT( !dt.ParseFormat("foo", "%c") );
CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), "%c") );
CPPUNIT_ASSERT( !dt.ParseFormat(s, "%c") );
dt.ParseFormat(s.c_str(), "%c");
CPPUNIT_ASSERT( !dt.ParseFormat("foo", wxT("%c")) );
CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), wxT("%c")) );
CPPUNIT_ASSERT( !dt.ParseFormat(s, "%c") );
dt.ParseFormat(s.c_str(), wxT("%c"));
wxString spec("%c");
CPPUNIT_ASSERT( !dt.ParseFormat("foo", spec) );
CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), spec) );
CPPUNIT_ASSERT( !dt.ParseFormat(s, spec) );
dt.ParseFormat(s.c_str(), spec);
}
