179 lines
7.3 KiB
C++
179 lines
7.3 KiB
C++
/* Copyright (c) 2002,2003, 2007 CrystalClear Software, Inc.
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* Use, modification and distribution is subject to the
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* Boost Software License, Version 1.0. (See accompanying
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* file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
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* Author: Jeff Garland
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*/
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#include "boost/date_time/posix_time/posix_time.hpp"
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#include "boost/date_time/local_time_adjustor.hpp"
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#include "boost/date_time/local_timezone_defs.hpp"
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#include "../testfrmwk.hpp"
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int
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main()
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{
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using namespace boost::posix_time;
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using namespace boost::gregorian;
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date dst_start(2002,Apr, 7);
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date dst_end_day(2002,Oct, 27);
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typedef boost::date_time::utc_adjustment<time_duration,-5> us_eastern_offset_adj;
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//Type that embeds rules for UTC-5 plus DST offset
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typedef boost::date_time::static_local_time_adjustor<ptime,
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us_dst,
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us_eastern_offset_adj> us_eastern;
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//test some times clearly not in DST
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date d3(2002,Feb,1);
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ptime t10(d3, hours(4));
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ptime t10_check(d3, hours(9)); //utc is 5 hours ahead
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time_duration td = us_eastern::local_to_utc_offset(t10);//dst flag is defaulted
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check("check local calculation", td == hours(5));
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ptime t10_local = t10 + td;
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std::cout << to_simple_string(t10_local)
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<< std::endl;
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check("check local calculation", t10_local == t10_check);
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check("check utc is dst",
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us_eastern::utc_to_local_offset(t10) == hours(-5));
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//something clearly IN dst
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date d4(2002,May,1);
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ptime t11(d4, hours(3));
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check("check local offset",us_eastern::local_to_utc_offset(t11) == hours(4));
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std::cout << to_simple_string(us_eastern::local_to_utc_offset(t11)) << std::endl;
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ptime t11_check(d4, hours(7));//now utc offset is only 4 hours
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ptime t11_local = t11 + us_eastern::local_to_utc_offset(t11);
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std::cout << to_simple_string(t11_local) << " "
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<< to_simple_string(t11_check)
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<< std::endl;
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check("check local calculation", t11_local == t11_check);
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//should get same offset with DST flag set
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check("check local offset-dst flag on",
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us_eastern::local_to_utc_offset(t11, boost::date_time::is_dst) == hours(4));
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check("check local offset-dst flag override",
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us_eastern::local_to_utc_offset(t11, boost::date_time::not_dst) == hours(5));
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//Check the start of dst boundary
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ptime l_not_dst(dst_start, time_duration(1,59,59)); //2002-Apr-07 01:59:59
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check("check local dst start boundary case",
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us_eastern::local_to_utc_offset(l_not_dst) == hours(5));
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ptime u_not_dst(dst_start, time_duration(6,59,59));
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check("check utc dst start boundary case",
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us_eastern::utc_to_local_offset(u_not_dst) == hours(-5));
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ptime l_in_dst(dst_start, hours(3)); //2002-Apr-07 03:00:00 1st sec of dst
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check("check local dst start boundary case",
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us_eastern::local_to_utc_offset(l_in_dst, boost::date_time::is_dst) == hours(4));
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ptime u_in_dst(dst_start, hours(7));
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check("check utc dst start boundary case",
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us_eastern::utc_to_local_offset(u_in_dst) == hours(-4));
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//Check the end of dst boundary
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ptime dst_end(dst_end_day, time_duration(1,59,59)); //2002-Oct-27 01:00:00 DST
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check("check local dst end boundary case - still dst",
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us_eastern::local_to_utc_offset(dst_end, boost::date_time::is_dst) == hours(4));
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check("check local dst end boundary case - still dst",
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us_eastern::local_to_utc_offset(dst_end, boost::date_time::not_dst) == hours(5));
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ptime u_dst_end1(dst_end_day, time_duration(5,59,59));
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check("check utc dst end boundary case",
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us_eastern::utc_to_local_offset(u_dst_end1) == hours(-4));
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ptime u_dst_end2(dst_end_day, time_duration(6,0,0));
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check("check utc dst end boundary case",
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us_eastern::utc_to_local_offset(u_dst_end2) == hours(-5));
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ptime u_dst_end3(dst_end_day, time_duration(6,59,59));
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check("check utc dst end boundary case",
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us_eastern::utc_to_local_offset(u_dst_end3) == hours(-5));
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ptime u_dst_end4(dst_end_day, time_duration(7,0,0));
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check("check utc dst end boundary case",
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us_eastern::utc_to_local_offset(u_dst_end4) == hours(-5));
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//Now try a local adjustments without dst
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typedef boost::date_time::utc_adjustment<time_duration,-7> us_az_offset_adj;
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typedef boost::date_time::null_dst_rules<date, time_duration> us_az_dst_adj;
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//Type that embeds rules for UTC-7 with no dst
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typedef boost::date_time::static_local_time_adjustor<ptime,
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us_az_dst_adj,
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us_az_offset_adj> us_az;
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check("check local offset - no dst",
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us_az::local_to_utc_offset(t10) == hours(7));
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check("check local offset - no dst",
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us_az::local_to_utc_offset(t11) == hours(7));
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check("check local offset - no dst",
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us_az::utc_to_local_offset(t10) == hours(-7));
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check("check local offset - no dst",
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us_az::utc_to_local_offset(t11) == hours(-7));
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//Arizona timezone is utc-7 with no dst
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typedef boost::date_time::local_adjustor<ptime, -7, no_dst> us_arizona;
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ptime t7(date(2002,May,31), hours(17));
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ptime t8 = us_arizona::local_to_utc(t7);
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ptime t9 = us_arizona::utc_to_local(t8);
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//converted to local then back ot utc
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check("check us_local_adjustor", t9 == t7);
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typedef boost::date_time::local_adjustor<ptime, -5, us_dst> us_eastern2;
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{
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ptime t7a(date(2002,May,31), hours(17));
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ptime t7b = us_eastern2::local_to_utc(t7a);
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ptime t7c = us_eastern2::utc_to_local(t7b);
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//converted to local then back ot utc
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check("check us_local_adjustor", t7c == t7a);
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}
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typedef boost::date_time::us_dst_trait<date> us_dst_traits;
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typedef boost::date_time::dst_calc_engine<date, time_duration, us_dst_traits>
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us_dst_calc2;
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typedef boost::date_time::local_adjustor<ptime, -5, us_dst_calc2> us_eastern3;
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{
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ptime t7a(date(2002,May,31), hours(17));
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ptime t7b = us_eastern3::local_to_utc(t7a);
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ptime t7c = us_eastern3::utc_to_local(t7b);
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//converted to local then back ot utc
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check("check us_local_adjustor3", t7c == t7a);
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}
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{
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ptime t7a(date(2007,Mar,11), hours(4));
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ptime t7b = us_eastern3::local_to_utc(t7a);
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ptime t7c = us_eastern3::utc_to_local(t7b);
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//converted to local then back ot utc
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check("check us_local_adjustor3 2007", t7c == t7a);
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}
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{
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ptime t7a(date(2007,Mar,11), hours(3));
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ptime t7b = us_eastern3::local_to_utc(t7a);
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ptime t7c = us_eastern3::utc_to_local(t7b);
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//converted to local then back ot utc
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check("check us_local_adjustor3 2007 a", t7c == t7a);
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}
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//still experimental
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typedef boost::date_time::dynamic_local_time_adjustor<ptime, us_dst> lta;
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// lta adjustor(hours(-7));
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check("dst start", lta::local_dst_start_day(2002) == dst_start);
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check("dst end", lta::local_dst_end_day(2002) == dst_end_day);
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check("dst boundary", lta::is_dst_boundary_day(dst_start));
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check("dst boundary", lta::is_dst_boundary_day(dst_end_day));
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// check("check non-dst offset", adjustor.utc_offset(false)==hours(-7));
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// check("check dst offset", adjustor.utc_offset(true)==hours(-6));
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check("dst start", lta::local_dst_start_day(2007) == date(2007,Mar,11));
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check("dst end", lta::local_dst_end_day(2007) == date(2007,Nov,4));
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return printTestStats();
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}
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