libcxx/test/std/time/time.clock/time.clock.system/sys_date.ostream.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // UNSUPPORTED: c++03, c++11, c++14, c++17
  10 // UNSUPPORTED: no-localization
  11 // UNSUPPORTED: GCC-ALWAYS_INLINE-FIXME
  12
  13 // TODO FMT This test should not require std::to_chars(floating-point)
  14 // XFAIL: availability-fp_to_chars-missing
  15
  16 // REQUIRES: locale.fr_FR.UTF-8
  17 // REQUIRES: locale.ja_JP.UTF-8
  18
  19 // <chrono>
  20
  21 // class system_Clock;
  22
  23 // template<class charT, class traits>
  24 //   basic_ostream<charT, traits>&
  25 //     operator<<(basic_ostream<charT, traits>& os, const sys_days& dp);
  26
  27 #include <cassert>
  28 #include <chrono>
  29 #include <ratio>
  30 #include <sstream>
  31
  32 #include "make_string.h"
  33 #include "platform_support.h" // locale name macros
  34 #include "test_macros.h"
  35 #include "assert_macros.h"
  36 #include "concat_macros.h"
  37
  38 #define SV(S) MAKE_STRING_VIEW(CharT, S)
  39
  40 #define TEST_EQUAL(OUT, EXPECTED)                                                                                      \
  41   TEST_REQUIRE(OUT == EXPECTED,                                                                                        \
  42                TEST_WRITE_CONCATENATED(                                                                                \
  43                    "\nExpression      ", #OUT, "\nExpected output ", EXPECTED, "\nActual output   ", OUT, '\n'));
  44
  45 template <class CharT>
  46 static std::basic_string<CharT> stream_c_locale(const std::chrono::sys_days& dp) {
  47   std::basic_stringstream<CharT> sstr;
  48   sstr << dp;
  49   return sstr.str();
  50 }
  51
  52 template <class CharT>
  53 static std::basic_string<CharT> stream_fr_FR_locale(const std::chrono::sys_days& dp) {
  54   std::basic_stringstream<CharT> sstr;
  55   const std::locale locale(LOCALE_fr_FR_UTF_8);
  56   sstr.imbue(locale);
  57   sstr << dp;
  58   return sstr.str();
  59 }
  60
  61 template <class CharT>
  62 static std::basic_string<CharT> stream_ja_JP_locale(const std::chrono::sys_days& dp) {
  63   std::basic_stringstream<CharT> sstr;
  64   const std::locale locale(LOCALE_ja_JP_UTF_8);
  65   sstr.imbue(locale);
  66   sstr << dp;
  67   return sstr.str();
  68 }
  69
  70 template <class CharT>
  71 static void test() {
  72   TEST_EQUAL(stream_c_locale<CharT>(std::chrono::sys_days{
  73                  std::chrono::year_month_day{std::chrono::year{-32'768}, std::chrono::month{1}, std::chrono::day{1}}}),
  74              SV("-32768-01-01 is not a valid date"));
  75   TEST_EQUAL(stream_c_locale<CharT>(std::chrono::sys_days{
  76                  std::chrono::year_month_day{std::chrono::year{1970}, std::chrono::month{1}, std::chrono::day{1}}}),
  77              SV("1970-01-01"));
  78   TEST_EQUAL(stream_c_locale<CharT>(std::chrono::sys_days{
  79                  std::chrono::year_month_day{std::chrono::year{2000}, std::chrono::month{2}, std::chrono::day{29}}}),
  80              SV("2000-02-29"));
  81   TEST_EQUAL(stream_c_locale<CharT>(std::chrono::sys_days{
  82                  std::chrono::year_month_day{std::chrono::year{32'767}, std::chrono::month{12}, std::chrono::day{31}}}),
  83              SV("32767-12-31"));
  84
  85   // multiples of days are considered days.
  86   TEST_EQUAL(stream_c_locale<CharT>(std::chrono::sys_time<std::chrono::weeks>{std::chrono::weeks{3}}),
  87              SV("1970-01-22"));
  88   TEST_EQUAL(stream_c_locale<CharT>(std::chrono::sys_time<std::chrono::duration<int, std::ratio<30 * 86400>>>{
  89                  std::chrono::duration<int, std::ratio<30 * 86400>>{1}}),
  90              SV("1970-01-31"));
  91
  92   TEST_EQUAL(stream_fr_FR_locale<CharT>(std::chrono::sys_days{
  93                  std::chrono::year_month_day{std::chrono::year{-32'768}, std::chrono::month{1}, std::chrono::day{1}}}),
  94              SV("-32768-01-01 is not a valid date"));
  95   TEST_EQUAL(stream_fr_FR_locale<CharT>(std::chrono::sys_days{
  96                  std::chrono::year_month_day{std::chrono::year{1970}, std::chrono::month{1}, std::chrono::day{1}}}),
  97              SV("1970-01-01"));
  98   TEST_EQUAL(stream_fr_FR_locale<CharT>(std::chrono::sys_days{
  99                  std::chrono::year_month_day{std::chrono::year{2000}, std::chrono::month{2}, std::chrono::day{29}}}),
 100              SV("2000-02-29"));
 101   TEST_EQUAL(stream_fr_FR_locale<CharT>(std::chrono::sys_days{
 102                  std::chrono::year_month_day{std::chrono::year{32'767}, std::chrono::month{12}, std::chrono::day{31}}}),
 103              SV("32767-12-31"));
 104
 105   // multiples of days are considered days.
 106   TEST_EQUAL(stream_fr_FR_locale<CharT>(std::chrono::sys_time<std::chrono::weeks>{std::chrono::weeks{3}}),
 107              SV("1970-01-22"));
 108   TEST_EQUAL(stream_fr_FR_locale<CharT>(std::chrono::sys_time<std::chrono::duration<int, std::ratio<30 * 86400>>>{
 109                  std::chrono::duration<int, std::ratio<30 * 86400>>{1}}),
 110              SV("1970-01-31"));
 111
 112   TEST_EQUAL(stream_ja_JP_locale<CharT>(std::chrono::sys_days{
 113                  std::chrono::year_month_day{std::chrono::year{-32'768}, std::chrono::month{1}, std::chrono::day{1}}}),
 114              SV("-32768-01-01 is not a valid date"));
 115   TEST_EQUAL(stream_ja_JP_locale<CharT>(std::chrono::sys_days{
 116                  std::chrono::year_month_day{std::chrono::year{1970}, std::chrono::month{1}, std::chrono::day{1}}}),
 117              SV("1970-01-01"));
 118   TEST_EQUAL(stream_ja_JP_locale<CharT>(std::chrono::sys_days{
 119                  std::chrono::year_month_day{std::chrono::year{2000}, std::chrono::month{2}, std::chrono::day{29}}}),
 120              SV("2000-02-29"));
 121   TEST_EQUAL(stream_ja_JP_locale<CharT>(std::chrono::sys_days{
 122                  std::chrono::year_month_day{std::chrono::year{32'767}, std::chrono::month{12}, std::chrono::day{31}}}),
 123              SV("32767-12-31"));
 124
 125   // multiples of days are considered days.
 126   TEST_EQUAL(stream_ja_JP_locale<CharT>(std::chrono::sys_time<std::chrono::weeks>{std::chrono::weeks{3}}),
 127              SV("1970-01-22"));
 128   TEST_EQUAL(stream_ja_JP_locale<CharT>(std::chrono::sys_time<std::chrono::duration<int, std::ratio<30 * 86400>>>{
 129                  std::chrono::duration<int, std::ratio<30 * 86400>>{1}}),
 130              SV("1970-01-31"));
 131 }
 132
 133 int main(int, char**) {
 134   test<char>();
 135
 136 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
 137   test<wchar_t>();
 138 #endif
 139
 140   return 0;
 141 }