ceph/src/boost/libs/date_time/test/local_time/testlocal_time_input_facet.cpp

   1 /* Copyright (c) 2005 CrystalClear Software, Inc.
   2  * Subject to the Boost Software License, Version 1.0.
   3  * (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
   4  * Author: Jeff Garland, Bart Garst
   5  * $Date$
   6  */
   7
   8 #include "boost/date_time/local_time/local_time.hpp"
   9 #include "../testfrmwk.hpp"
  10 #include <iostream>
  11 #include <sstream>
  12 #include <string>
  13
  14 // for tests that are expected to fail and throw exceptions
  15 template<class temporal_type, class exception_type>
  16 bool failure_test(temporal_type component,
  17                   const std::string& input,
  18                   exception_type const& /*except*/,
  19                   boost::local_time::local_time_input_facet* facet)
  20 {
  21   using namespace boost::local_time;
  22   bool result = false;
  23   std::istringstream iss(input);
  24   iss.exceptions(std::ios_base::failbit); // turn on exceptions
  25   iss.imbue(std::locale(std::locale::classic(), facet));
  26   try {
  27     iss >> component;
  28   }
  29   catch(exception_type& e) {
  30     std::cout << "Expected exception caught: \""
  31               << e.what() << "\"" << std::endl;
  32     result = iss.fail(); // failbit must be set to pass test
  33   }
  34   catch(...) {
  35     result = false;
  36   }
  37
  38   return result;
  39 }
  40
  41 // for tests that are expected to fail quietly
  42 template<class temporal_type>
  43 bool failure_test(temporal_type component,
  44                   const std::string& input,
  45                   boost::local_time::local_time_input_facet* facet)
  46 {
  47   using namespace boost::local_time;
  48   std::istringstream iss(input);
  49   /* leave exceptions turned off
  50    * iss.exceptions(std::ios_base::failbit); */
  51   iss.imbue(std::locale(std::locale::classic(), facet));
  52   try {
  53     iss >> component;
  54   }
  55   catch(...) {
  56     std::cout << "Caught unexpected exception" << std::endl;
  57     return false;
  58   }
  59
  60   return iss.fail(); // failbit must be set to pass test
  61 }
  62
  63 int main() {
  64   using namespace boost::gregorian;
  65   using namespace boost::posix_time;
  66   using namespace boost::local_time;
  67   time_zone_ptr null_zone;
  68   local_date_time ldt1(not_a_date_time, null_zone);
  69
  70   // verify wide stream works, thorough tests done in narrow stream
  71 #if !defined(BOOST_NO_STD_WSTRING)
  72   {
  73     std::wstringstream ws;
  74     ws.str(L"2005-Feb-15 12:15:00 EST-05EDT,M4.1.0,M10.5.0");
  75     ws >> ldt1;
  76     check("Wide stream, Eastern US, daylight savings, winter, minimal input",
  77           ldt1.local_time() == ptime(date(2005,2,15), time_duration(12,15,0)));
  78     check("Wide stream, Eastern US, daylight savings, winter, minimal input",
  79           ldt1.utc_time() == ptime(date(2005,2,15), time_duration(17,15,0)));
  80     check("Wide stream, Eastern US, daylight savings, winter, minimal input", !ldt1.is_dst());
  81     ws.str(L"");
  82     wlocal_time_input_facet* wfacet = new wlocal_time_input_facet(L"%m/%d/%y %ZP");
  83     std::locale loc(std::locale::classic(), wfacet);
  84     ws.imbue(loc);
  85     ws.str(L"10/31/04 PST-08PDT,M4.1.0,M10.5.0"); // midnight on end transition day, still in dst
  86     ws >> ldt1;
  87     std::wcout << ldt1.local_time() << std::endl;
  88     check("Wide stream, Eastern US, daylight savings, winter, custom format",
  89           ldt1.local_time() == ptime(date(2004,10,31), time_duration(0,0,0)));
  90     check("Wide stream, Eastern US, daylight savings, winter, custom format",
  91           ldt1.utc_time() == ptime(date(2004,10,31), time_duration(7,0,0)));
  92     check("Wide stream, Eastern US, daylight savings, winter, custom format", ldt1.is_dst());
  93   }
  94 #endif // BOOST_NO_STD_WSTRING
  95
  96   std::stringstream ss;
  97   ss.str("2005-Feb-25 12:15:00 EST-05EDT,M4.1.0,M10.5.0");
  98   ss >> ldt1;
  99   check("Eastern US, daylight savings, winter, minimal input",
 100         ldt1.local_time() == ptime(date(2005,2,25), time_duration(12,15,0)));
 101   check("Eastern US, daylight savings, winter, minimal input",
 102         ldt1.utc_time() == ptime(date(2005,2,25), time_duration(17,15,0)));
 103   check("Eastern US, daylight savings, winter, minimal input", !ldt1.is_dst());
 104   ss.str("");
 105
 106   ss.str("2005-Aug-25 12:15:00 EST-05EDT,M4.1.0,M10.5.0");
 107   ss >> ldt1;
 108   check("Eastern US, daylight savings, summer, minimal input",
 109         ldt1.local_time() == ptime(date(2005,8,25), time_duration(12,15,0)));
 110   check("Eastern US, daylight savings, summer, minimal input",
 111         ldt1.utc_time() == ptime(date(2005,8,25), time_duration(16,15,0)));
 112   check("Eastern US, daylight savings, summer, minimal input", ldt1.is_dst());
 113   ss.str("");
 114
 115   ss.str("2005-Apr-03 01:15:00 EST-05EDT,M4.1.0,M10.5.0");
 116   ss >> ldt1;
 117   check("Eastern US, daylight savings, transition point", !ldt1.is_dst());
 118   ldt1 += hours(1);
 119   check("Eastern US, daylight savings, transition point", ldt1.is_dst());
 120   ss.str("");
 121   ss.str("2005-Apr-03 01:15:00 EST-05EDT,93,303");
 122   ss >> ldt1;
 123   check("Eastern US, daylight savings, transition point", !ldt1.is_dst());
 124   ldt1 += hours(1);
 125   check("Eastern US, daylight savings, transition point", ldt1.is_dst());
 126   ss.str("");
 127
 128   ss.str("2005-Oct-30 00:15:00 EST-05EDT,M4.1.0,M10.5.0");
 129   ss >> ldt1;
 130   check("Eastern US, daylight savings, transition point", ldt1.is_dst());
 131   ldt1 += hours(1);
 132   check("Eastern US, daylight savings, transition point", ldt1.is_dst());
 133   ldt1 += hours(1);
 134   check("Eastern US, daylight savings, transition point", !ldt1.is_dst());
 135   ss.str("");
 136   ss.str("2005-Oct-30 00:15:00 EST-05EDT,93,303");
 137   ss >> ldt1;
 138   check("Eastern US, daylight savings, transition point", ldt1.is_dst());
 139   ldt1 += hours(1);
 140   check("Eastern US, daylight savings, transition point", ldt1.is_dst());
 141   ldt1 += hours(1);
 142   check("Eastern US, daylight savings, transition point", !ldt1.is_dst());
 143   ss.str("");
 144
 145   ss.str("2005-Aug-25 12:15:00 MST-07");
 146   ss >> ldt1;
 147   check("Mountain US, no daylight savings",
 148         ldt1.local_time() == ptime(date(2005,8,25), time_duration(12,15,0)));
 149   check("Mountain US, no daylight savings",
 150         ldt1.utc_time() == ptime(date(2005,8,25), time_duration(19,15,0)));
 151   check("Mountain US, no daylight savings", !ldt1.is_dst());
 152   ss.str("");
 153
 154   // insure input & output formats match
 155   local_time_facet* out_facet =
 156     new local_time_facet(local_time_input_facet::default_time_input_format);
 157   std::locale loc(std::locale::classic(), out_facet);
 158   ss.imbue(loc);
 159   time_zone_ptr syd_tz(new posix_time_zone("EST+10EST,M10.5.0,M3.5.0/03:00"));
 160   ptime pt(date(2005,6,12), hours(0));
 161   local_date_time ldt2(pt, syd_tz);
 162   ss << ldt2;
 163   ss >> ldt1;
 164   check("Output as input makes match", ldt1 == ldt2);
 165   check("Output as input makes match",
 166       ldt1.zone()->dst_local_start_time(2004) == ldt2.zone()->dst_local_start_time(2004));
 167   ss.str("");
 168
 169   time_zone_ptr f_tz(new posix_time_zone("FST+03FDT,90,300"));
 170   ldt2 = local_date_time(ptime(date(2005,6,12), hours(0)), f_tz);
 171   ss << ldt2;
 172   ss >> ldt1;
 173   check("Output as input makes match", ldt1 == ldt2);
 174   check("Output as input makes match",
 175       ldt1.zone()->dst_local_start_time(2004) == ldt2.zone()->dst_local_start_time(2004));
 176   ss.str("");
 177
 178   // missing input & wrong format tests
 179   ss.str("2005-Oct-30 00:15:00");
 180   ss >> ldt1;
 181   check("Missing time_zone spec makes UTC", ldt1.zone_as_posix_string() == std::string("UTC+00"));
 182   check("Missing time_zone spec makes UTC", ldt1.utc_time() == ldt1.local_time());
 183   ss.str("");
 184   {
 185     std::istringstream iss("2005-Aug-25 12:15:00 MST-07");
 186     local_time_input_facet* f = new local_time_input_facet("%Y-%b-%d %H:%M:%S %z");
 187     std::locale locx(std::locale::classic(), f);
 188     iss.imbue(locx);
 189     iss >> ldt1;
 190     check("Wrong format flag makes UTC", ldt1.zone_as_posix_string() == std::string("UTC+00"));
 191     check("Wrong format flag makes UTC", ldt1.utc_time() == ldt1.local_time());
 192   }
 193
 194
 195   // failure tests: (posix_time_zone) bad_offset, bad_adjustment,
 196   // (local_date_time) ambiguous_result, time_label_invalid,
 197   // time/date failures already tested
 198   ambiguous_result amb_ex("default");
 199   time_label_invalid inv_ex("default");
 200   check("Failure test ambiguous time label (w/exceptions)",
 201         failure_test(ldt1,
 202                      "2005-Oct-30 01:15:00 EST-05EDT,M4.1.0,M10.5.0",
 203                      amb_ex,
 204                      new local_time_input_facet()));
 205   check("Failure test ambiguous time label (no exceptions)",
 206         failure_test(ldt1,
 207                      "2005-Oct-30 01:15:00 EST-05EDT,M4.1.0,M10.5.0",
 208                      new local_time_input_facet()));
 209   check("Failure test ambiguous time label (w/exceptions)",
 210         failure_test(ldt1,
 211                      "2005-Oct-30 01:15:00 EST-05EDT,93,303",
 212                      amb_ex,
 213                      new local_time_input_facet()));
 214   check("Failure test ambiguous time label (no exceptions)",
 215         failure_test(ldt1,
 216                      "2005-Oct-30 01:15:00 EST-05EDT,93,303",
 217                      new local_time_input_facet()));
 218   check("Failure test invalid time label (w/exceptions)",
 219         failure_test(ldt1,
 220                      "2005-Apr-03 02:15:00 EST-05EDT,M4.1.0,M10.5.0",
 221                      inv_ex,
 222                      new local_time_input_facet()));
 223   check("Failure test invalid time label (no exceptions)",
 224         failure_test(ldt1,
 225                      "2005-Apr-03 02:15:00 EST-05EDT,M4.1.0,M10.5.0",
 226                      new local_time_input_facet()));
 227   check("Failure test invalid time label (w/exceptions)",
 228         failure_test(ldt1,
 229                      "2005-Apr-03 02:15:00 EST-05EDT,93,303",
 230                      inv_ex,
 231                      new local_time_input_facet()));
 232   check("Failure test invalid time label (no exceptions)",
 233         failure_test(ldt1,
 234                      "2005-Apr-03 02:15:00 EST-05EDT,93,303",
 235                      new local_time_input_facet()));
 236
 237
 238   return printTestStats();
 239 }