date_time/test/local_time/testlocal_time.cpp

371 lines
15 KiB
C++

/* Copyright (c) 2003-2005 CrystalClear Software, Inc.
* Subject to the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
* Author: Jeff Garland, Bart Garst
* $Date$
*/
#include "boost/date_time/local_time/custom_time_zone.hpp"
#include "boost/date_time/posix_time/posix_time.hpp"
#include "boost/date_time/local_time/local_time.hpp"
// #include "boost/date_time/local_time/posix_time_zone.hpp"
#include "../testfrmwk.hpp"
//#include "boost/date_time/c_time.hpp"
#include <iostream>
#include <sstream>
// function eases testing
std::string tm_out(const tm& ptr){
std::stringstream ss;
ss
<< ptr.tm_wday << ' ' << ptr.tm_yday << ' '
<< std::setw(2) << std::setfill('0') << ptr.tm_mon + 1 << '/'
<< std::setw(2) << std::setfill('0') << ptr.tm_mday << '/'
<< std::setw(2) << std::setfill('0') << ptr.tm_year + 1900 << ' '
<< std::setw(2) << std::setfill('0') << ptr.tm_hour << ':'
<< std::setw(2) << std::setfill('0') << ptr.tm_min << ':'
<< std::setw(2) << std::setfill('0') << ptr.tm_sec << ' ';
if(ptr.tm_isdst >= 0){
ss << (ptr.tm_isdst ? "DST" : "STD");
}
else{
ss << "DST/STD unknown";
}
return ss.str();
}
int
main()
{
using namespace boost::gregorian;
using namespace boost::posix_time;
using namespace boost::local_time;
// since local_date_time inherits it's math operations from time, the
// tests here only show that the operations work. The thorough testing
// of these operations is done in the posix_time tests
try {
time_zone_ptr az_tz(new posix_time_zone("MST-07"));
time_zone_ptr ny_tz(new posix_time_zone("EST-05EDT,M4.1.0,M10.5.0"));
// EST & EST for sydney is correct, according to zoneinfo files
time_zone_ptr sydney(new posix_time_zone("EST+10EST,M10.5.0,M3.5.0/03:00"));
time_zone_ptr null_tz;
date d(2003, 12, 20);
hours h(12);
ptime t(d,h);
local_date_time az_time(t, az_tz); // ptime constructor is a UTC time
check("Zone abbreviation", az_time.zone()->std_zone_abbrev() == std::string("MST"));
check("base offset", az_time.zone()->base_utc_offset() == hours(-7));
check("zone has dst", az_time.zone()->has_dst() == false);
check("is_dst check", az_time.is_dst() == false);
check("to_string: " + az_time.to_string(),
az_time.to_string() == "2003-Dec-20 05:00:00 MST");
std::cout << "\nChecking copy construction" << std::endl;
local_date_time az_time2(az_time); //copy constructor
// Now test the copy
check("is_dst check", az_time2.is_dst() == false);
check("to_string: " + az_time2.to_string(),
az_time2.to_string() == "2003-Dec-20 05:00:00 MST");
check("zone has dst", az_time2.zone()->has_dst() == false);
check("base offset", az_time2.zone()->base_utc_offset() == hours(-7));
std::cout << "\nChecking special_value construction" << std::endl;
// since local_date_time inherits its special value operatorations
// from time, we only need to show here that they work as thorough
// testing is done in the posix_time tests
ptime svpt(not_a_date_time);
local_date_time sv_time(svpt, ny_tz);
check("is special_value", sv_time.is_not_a_date_time());
check("to_string: " + sv_time.to_string(),
sv_time.to_string() == "not-a-date-time");
check("is_dst", sv_time.is_dst() == false);
local_date_time sv_time2(pos_infin);
check("is special_value", sv_time2.is_pos_infinity());
check("to_string: " + sv_time2.to_string(),
sv_time2.to_string() == "+infinity");
check("is_dst", sv_time2.is_dst() == false);
sv_time2 += days(12); // add a duration to a special value
check("Add a duration to a special value", sv_time2.is_pos_infinity());
local_date_time sv_time3(max_date_time, ny_tz);
#ifdef BOOST_DATE_TIME_POSIX_TIME_STD_CONFIG
check("max_date_time to_string: " + sv_time3.to_string(),
sv_time3.to_string() == "9999-Dec-31 18:59:59.999999999 EST");
#else
check("max_date_time to_string: " + sv_time3.to_string(),
sv_time3.to_string() == "9999-Dec-31 18:59:59.999999 EST");
#endif
try {
local_date_time sv_time4(min_date_time);
check("min_date_time to_string: " + sv_time4.to_string(),
sv_time4.to_string() == "1400-Jan-01 00:00:00 UTC");
}
catch (std::exception& e) {
check("min_date_time to_string -- exception" , false);
std::cout << "Exception is : " << e.what() << std::endl;
}
/** todo -- this will cause an out of range when min_date is adjusted for ny_tz
local_date_time sv_time5(min_date_time, ny_tz);
std::cout << sv_time5.to_string() << std::endl;
**/
std::cout << "\nChecking calc_options construction" << std::endl;
{ // invalid NADT
date dx(2004, Apr, 4);
time_duration td(2,30,0); // invalid local time in ny_tz
local_date_time calcop(dx, td, ny_tz, local_date_time::NOT_DATE_TIME_ON_ERROR);
check("is NADT", calcop.is_not_a_date_time());
}
{ // invalid exception
date dx(2004, Apr, 4);
time_duration td(2,30,0); // invalid local time in ny_tz
try{
local_date_time calcop(dx, td, ny_tz, local_date_time::EXCEPTION_ON_ERROR);
check("Did not catch expected exception", false);
}catch(time_label_invalid& /*i*/){
check("Caught expected exception", true);
}catch(...){
check("Caught unexpected exception", false);
}
}
{ // ambig NADT
date dx(2004, Oct, 31);
time_duration td(1,30,0); // ambig local time in ny_tz
local_date_time calcop(dx, td, ny_tz, local_date_time::NOT_DATE_TIME_ON_ERROR);
check("is NADT", calcop.is_not_a_date_time());
}
{ // ambig exception
date dx(2004, Oct, 31);
time_duration td(1,30,0); // ambig local time in ny_tz
try{
local_date_time calcop(dx, td, ny_tz, local_date_time::EXCEPTION_ON_ERROR);
check("Did not catch expected exception", false);
}catch(ambiguous_result& /*a*/){
check("Caught expected exception", true);
}catch(...){
check("Caught unexpected exception", false);
}
}
//Now construct with a date and time
std::cout << "\nChecking construct with date and time_duration" << std::endl;
local_date_time az_time3(d, h, az_tz, false);
check("Zone abbreviation", az_time3.zone()->std_zone_abbrev() == std::string("MST"));
check("base offset", az_time3.zone()->base_utc_offset() == hours(-7));
check("base offset", az_time3.zone()->has_dst() == false);
check("is_dst check", az_time3.is_dst() == false);
check("to_string: " + az_time3.to_string(),
az_time3.to_string() == "2003-Dec-20 12:00:00 MST");
// construct with a null tz
//local_date_time null_tz_time(d, h, null_tz, false);
local_date_time null_tz_time(d, h, null_tz, true);
// TODO: how to handle calls to null_tz_time.zone()->...
check("is_dst check", null_tz_time.is_dst() == false);
check("to_string: " + null_tz_time.to_string(),
null_tz_time.to_string() == "2003-Dec-20 12:00:00 UTC");
//Now construct with a date and time - invalid parameters
try{
local_date_time blt(d, h, ny_tz, true);
check("Did not catch expected exception (dst_not_valid)", false);
}catch(dst_not_valid& e){
check(std::string("Caught expected exception (dst_not_valid) ") + e.what(), true);
}catch(std::exception& e){
check(std::string("Caught unexpected exception ") + e.what(), false);
}
try{
local_date_time blt(date(2004,Apr,4), time_duration(2,30,0), ny_tz, true);
check("Did not catch expected exception (Invalid_Time_Label)", false);
}catch(time_label_invalid& e){
check(std::string("Caught expected exception (Invalid_Time_Label) ") + e.what(), true);
}catch(std::exception& e){
check(std::string("Caught unexpected exception ") + e.what(), false);
}
// thorough is_dst() tests, tests againts null_tz and non dst tz are
// done where those local times were tested
{
date dx(2004,Apr,4);
time_duration td(1,15,0); // local
local_date_time lt1(dx,td,ny_tz,false);
local_date_time lt2(ptime(dx,time_duration(6,15,0)), ny_tz);
check("are local_times equal", lt1.utc_time() == lt2.utc_time());
check("is_dst - transition in 1", lt1.is_dst() == false);
check("is_dst - transition in 2", lt2.is_dst() == false);
lt1 += hours(1);
lt2 += hours(1);
check("is_dst - transition in 1", lt1.is_dst() == true);
check("is_dst - transition in 2", lt2.is_dst() == true);
}
{
date dx(2004,Oct,31);
time_duration td(1,15,0); // local
local_date_time lt1(dx,td,ny_tz,true);
/*try{
//local_date_time lt1(dx,td,ny_tz,false);
local_date_time lt1(dx,td,ny_tz,true);
std::cout << "no exception thrown" << std::endl;
}catch(time_label_invalid& e){
std::cout << "caught: " << e.what() << std::endl;
}*/
local_date_time lt2(ptime(dx,time_duration(5,15,0)), ny_tz);
check("are local_times equal", lt1.utc_time() == lt2.utc_time());
check("is_dst - transition out 1", lt1.is_dst() == true);
check("is_dst - transition out 2", lt2.is_dst() == true);
lt1 += hours(1);
lt2 += hours(1);
check("is_dst - transition out 1", lt1.is_dst() == false);
check("is_dst - transition out 2", lt2.is_dst() == false);
}
{ // southern hemisphere
date dx(2004,Oct,31);
time_duration td(1,15,0); // local
local_date_time lt1(dx,td,sydney,false);
check("is_dst - transition in (sydney)", lt1.is_dst() == false);
lt1 += hours(1);
check("is_dst - transition in (sydney)", lt1.is_dst() == true);
}
{
date dx(2004,Mar,28);
time_duration td(2,15,0); // local; sydney has a weird trans time
local_date_time lt1(dx,td,sydney,true);
check("is_dst - transition out (sydney)", lt1.is_dst() == true);
lt1 += hours(1);
check("is_dst - transition out (sydney)", lt1.is_dst() == false);
}
std::cout << "\nTest conversion of time zone from Arizona to New York" << std::endl;
local_date_time ny_time = az_time.local_time_in(ny_tz);
check("Zone abbreviation", ny_time.zone()->std_zone_abbrev() == std::string("EST"));
check("base offset", ny_time.zone()->base_utc_offset() == hours(-5));
check("base offset", ny_time.zone()->has_dst() == true);
check("to_string: " + ny_time.to_string(),
ny_time.to_string() == "2003-Dec-20 07:00:00 EST");
ny_time += hours(3);
check("to_string after add 3 hours: " + ny_time.to_string(),
ny_time.to_string() == "2003-Dec-20 10:00:00 EST");
ny_time += days(3);
check("to_string after add 3 days: " + ny_time.to_string(),
ny_time.to_string() == "2003-Dec-23 10:00:00 EST");
{ // test comparisons & math operations
date dx(2003, Aug, 28);
ptime sv_pt(pos_infin);
local_date_time sv_lt(sv_pt, ny_tz);
ptime utc_pt(dx, hours(12));
// all 4 of the following local times happen at the same instant
// so they are all equal
local_date_time utc_lt(utc_pt, null_tz); // noon in utc
local_date_time az_lt(dx, hours(5), az_tz, false); // 5am local std
local_date_time ny_lt(dx, hours(8), ny_tz, true); // 8am local dst
local_date_time au_lt(dx, hours(22), sydney, false);// 10pm local std
check("local_date_time to tm",
std::string("4 239 08/28/2003 05:00:00 STD") == tm_out(to_tm(az_lt)));
check("local_date_time to tm",
std::string("4 239 08/28/2003 08:00:00 DST") == tm_out(to_tm(ny_lt)));
check("local_date_time to tm",
std::string("4 239 08/28/2003 22:00:00 STD") == tm_out(to_tm(au_lt)));
try{
local_date_time ldt(not_a_date_time);
tm ldt_tm = to_tm(ldt);
check("Exception not thrown (special_value to_tm)", false);
//does nothing useful but stops compiler from complaining about unused ldt_tm
std::cout << ldt_tm.tm_sec << std::endl;
}catch(std::out_of_range&){
check("Caught expected exception (special_value to_tm)", true);
}catch(...){
check("Caught un-expected exception (special_value to_tm)", false);
}
// check that all are equal to sv_pt
check("local == utc", az_lt == utc_lt);
check("local == utc", ny_lt == utc_lt);
check("local == utc", au_lt == utc_lt);
check("local <= utc", au_lt <= utc_lt);
check("local >= utc", au_lt >= utc_lt);
check("local == local", az_lt == ny_lt);
check("local < local", az_lt < ny_lt+seconds(1));
check("local > local", az_lt+seconds(1) > ny_lt);
check("local <= local", az_lt <= ny_lt);
check("local >= local", az_lt >= ny_lt);
check("local != local", az_lt+seconds(1) != ny_lt);
au_lt += hours(1);
check("local != after +=", au_lt != utc_lt);
check("local <= after +=", utc_lt <= au_lt);
check("local >= after +=", au_lt >= utc_lt);
check("local < after +=", utc_lt < au_lt);
check("local > after +=", au_lt > utc_lt);
au_lt -= hours(1);
check("local == utc after -=", au_lt == utc_lt);
check("local + days",
(az_lt + days(2)).to_string() == "2003-Aug-30 05:00:00 MST");
check("local - days",
(az_lt - days(2)).to_string() == "2003-Aug-26 05:00:00 MST");
check("local += days",
(az_lt += days(2)).to_string() == "2003-Aug-30 05:00:00 MST");
check("local -= days",
(az_lt -= days(2)).to_string() == "2003-Aug-28 05:00:00 MST");
check("local + time_duration",
(az_lt + hours(2)).to_string() == "2003-Aug-28 07:00:00 MST");
check("local - time_duration",
(az_lt - hours(2)).to_string() == "2003-Aug-28 03:00:00 MST");
// special_values is more thoroughly tested in posix_time
check("pos_infinity > local", sv_lt > au_lt);
local_date_time sv_lt2(sv_lt + days(2));
check("pos_infin + duration == pos_infin", sv_lt2 == sv_lt);
#if defined(BOOST_DATE_TIME_OPTIONAL_GREGORIAN_TYPES)
months m(2);
years y(2);
check("Local + months",
(az_lt + m).to_string() == "2003-Oct-28 05:00:00 MST");
az_lt += m;
check("Local += months",
az_lt.to_string() == "2003-Oct-28 05:00:00 MST");
check("Local - months",
(az_lt - m).to_string() == "2003-Aug-28 05:00:00 MST");
az_lt -= m;
check("Local -= months",
az_lt.to_string() == "2003-Aug-28 05:00:00 MST");
check("Local + years",
(az_lt + y).to_string() == "2005-Aug-28 05:00:00 MST");
az_lt += y;
check("Local += years",
az_lt.to_string() == "2005-Aug-28 05:00:00 MST");
check("Local - years",
(az_lt - y).to_string() == "2003-Aug-28 05:00:00 MST");
az_lt -= y;
check("Local -= years",
az_lt.to_string() == "2003-Aug-28 05:00:00 MST");
#endif // BOOST_DATE_TIME_OPTIONAL_GREGORIAN_TYPES
}
}
catch(std::exception& e) {
check(std::string("test failed due to exception: ") + e.what(), false);
}
return printTestStats();
}