libcxx/test/std/time/time.syn/formatter.year_month.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 // template<class charT> struct formatter<chrono::year_month, charT>;
  22
  23 #include <chrono>
  24 #include <format>
  25
  26 #include <cassert>
  27 #include <concepts>
  28 #include <locale>
  29 #include <iostream>
  30 #include <type_traits>
  31
  32 #include "formatter_tests.h"
  33 #include "make_string.h"
  34 #include "platform_support.h" // locale name macros
  35 #include "string_literal.h"
  36 #include "test_macros.h"
  37
  38 template <class CharT>
  39 static void test_no_chrono_specs() {
  40   // Valid month
  41   check(SV("1970/Jan"), SV("{}"), std::chrono::year_month{std::chrono::year{1970}, std::chrono::month{1}});
  42   check(SV("*1970/Jan*"), SV("{:*^10}"), std::chrono::year_month{std::chrono::year{1970}, std::chrono::month{1}});
  43   check(SV("*1970/Jan"), SV("{:*>9}"), std::chrono::year_month{std::chrono::year{1970}, std::chrono::month{1}});
  44
  45   // Invalid month_day
  46   check(SV("1970/0 is not a valid month"),
  47         SV("{}"),
  48         std::chrono::year_month{std::chrono::year{1970}, std::chrono::month{0}});
  49   check(SV("*1970/0 is not a valid month*"),
  50         SV("{:*^29}"),
  51         std::chrono::year_month{std::chrono::year{1970}, std::chrono::month{0}});
  52 }
  53
  54 template <class CharT>
  55 static void test_invalid_values() {
  56   // Test that %b and %B throw an exception.
  57   check_exception("Formatting a month name from an invalid month number",
  58                   SV("{:%b}"),
  59                   std::chrono::year_month{std::chrono::year{1970}, std::chrono::month{0}});
  60
  61   check_exception("Formatting a month name from an invalid month number",
  62                   SV("{:%B}"),
  63                   std::chrono::year_month{std::chrono::year{1970}, std::chrono::month{0}});
  64 }
  65
  66 template <class CharT>
  67 static void test_valid_values() {
  68   constexpr std::basic_string_view<CharT> fmt = SV(
  69       "{:"
  70       "%%b='%b'%t"
  71       "%%B='%B'%t"
  72       "%%C='%C'%t"
  73       "%%h='%h'%t"
  74       "%%y='%y'%t"
  75       "%%Y='%Y'%t"
  76       "%%EC='%EC'%t"
  77       "%%Ey='%Ey'%t"
  78       "%%EY='%EY'%t"
  79       "%%Oy='%Oy'%t"
  80       "%n}");
  81
  82   constexpr std::basic_string_view<CharT> lfmt = SV(
  83       "{:L"
  84       "%%b='%b'%t"
  85       "%%B='%B'%t"
  86       "%%C='%C'%t"
  87       "%%h='%h'%t"
  88       "%%y='%y'%t"
  89       "%%Y='%Y'%t"
  90       "%%EC='%EC'%t"
  91       "%%Ey='%Ey'%t"
  92       "%%EY='%EY'%t"
  93       "%%Oy='%Oy'%t"
  94       "%n}");
  95
  96   const std::locale loc(LOCALE_ja_JP_UTF_8);
  97   std::locale::global(std::locale(LOCALE_fr_FR_UTF_8));
  98
  99   // Non localized output using C-locale
 100   check(SV("%b='Jan'\t"
 101            "%B='January'\t"
 102            "%C='19'\t"
 103            "%h='Jan'\t"
 104            "%y='70'\t"
 105            "%Y='1970'\t"
 106            "%EC='19'\t"
 107            "%Ey='70'\t"
 108            "%EY='1970'\t"
 109            "%Oy='70'\t"
 110            "\n"),
 111         fmt,
 112         std::chrono::year_month{std::chrono::year{1970}, std::chrono::January});
 113
 114   check(SV("%b='May'\t"
 115            "%B='May'\t"
 116            "%C='20'\t"
 117            "%h='May'\t"
 118            "%y='04'\t"
 119            "%Y='2004'\t"
 120            "%EC='20'\t"
 121            "%Ey='04'\t"
 122            "%EY='2004'\t"
 123            "%Oy='04'\t"
 124            "\n"),
 125         fmt,
 126         std::chrono::year_month{std::chrono::year{2004}, std::chrono::May});
 127
 128   // Use the global locale (fr_FR)
 129   check(SV(
 130 #if defined(__APPLE__)
 131             "%b='jan'\t"
 132 #else
 133             "%b='janv.'\t"
 134 #endif
 135             "%B='janvier'\t"
 136             "%C='19'\t"
 137 #if defined(__APPLE__)
 138             "%h='jan'\t"
 139 #else
 140             "%h='janv.'\t"
 141 #endif
 142             "%y='70'\t"
 143             "%Y='1970'\t"
 144             "%EC='19'\t"
 145             "%Ey='70'\t"
 146             "%EY='1970'\t"
 147             "%Oy='70'\t"
 148             "\n"),
 149         lfmt,
 150         std::chrono::year_month{std::chrono::year{1970}, std::chrono::January});
 151
 152   check(SV("%b='mai'\t"
 153            "%B='mai'\t"
 154            "%C='20'\t"
 155            "%h='mai'\t"
 156            "%y='04'\t"
 157            "%Y='2004'\t"
 158            "%EC='20'\t"
 159            "%Ey='04'\t"
 160            "%EY='2004'\t"
 161            "%Oy='04'\t"
 162            "\n"),
 163         lfmt,
 164         std::chrono::year_month{std::chrono::year{2004}, std::chrono::May});
 165
 166   // Use supplied locale (ja_JP)
 167   check(loc,
 168         SV(
 169 #if defined(_WIN32)
 170             "%b='1'\t"
 171 #elif defined(_AIX)      // defined(_WIN32)
 172             "%b='1月'\t"
 173 #elif defined(__APPLE__) // defined(_WIN32)
 174             "%b=' 1'\t"
 175 #else                    // defined(_WIN32)
 176             "%b=' 1月'\t"
 177 #endif                   // defined(_WIN32)
 178             "%B='1月'\t"
 179             "%C='19'\t"
 180 #if defined(_WIN32)
 181             "%h='1'\t"
 182 #elif defined(_AIX)      // defined(_WIN32)
 183             "%h='1月'\t"
 184 #elif defined(__APPLE__) // defined(_WIN32)
 185             "%h=' 1'\t"
 186 #else                    // defined(_WIN32)
 187             "%h=' 1月'\t"
 188 #endif                   // defined(_WIN32)
 189             "%y='70'\t"
 190             "%Y='1970'\t"
 191 #if defined(__APPLE__) || defined(_AIX) || defined(_WIN32) || defined(__FreeBSD__)
 192             "%EC='19'\t"
 193             "%Ey='70'\t"
 194             "%EY='1970'\t"
 195             "%Oy='70'\t"
 196 #else  // defined(__APPLE__) || defined(_AIX) || defined(_WIN32) || defined(__FreeBSD__)
 197             "%EC='昭和'\t"
 198             "%Ey='45'\t"
 199             "%EY='昭和45年'\t"
 200             "%Oy='七十'\t"
 201 #endif // defined(__APPLE__) || defined(_AIX) || defined(_WIN32) || defined(__FreeBSD__)
 202             "\n"),
 203         lfmt,
 204         std::chrono::year_month{std::chrono::year{1970}, std::chrono::January});
 205
 206   check(loc,
 207         SV(
 208
 209 #if defined(_WIN32)
 210             "%b='5'\t"
 211 #elif defined(_AIX)      // defined(_WIN32)
 212             "%b='5月'\t"
 213 #elif defined(__APPLE__) // defined(_WIN32)
 214             "%b=' 5'\t"
 215 #else                    // defined(_WIN32)
 216             "%b=' 5月'\t"
 217 #endif                   // defined(_WIN32)
 218             "%B='5月'\t"
 219             "%C='20'\t"
 220 #if defined(_WIN32)
 221             "%h='5'\t"
 222 #elif defined(_AIX)      // defined(_WIN32)
 223             "%h='5月'\t"
 224 #elif defined(__APPLE__) // defined(_WIN32)
 225             "%h=' 5'\t"
 226 #else                    // defined(_WIN32)
 227             "%h=' 5月'\t"
 228 #endif                   // defined(_WIN32)
 229             "%y='04'\t"
 230             "%Y='2004'\t"
 231 #if defined(__APPLE__) || defined(_AIX) || defined(_WIN32) || defined(__FreeBSD__)
 232             "%EC='20'\t"
 233             "%Ey='04'\t"
 234             "%EY='2004'\t"
 235             "%Oy='04'\t"
 236 #else  // defined(__APPLE__) || defined(_AIX) || defined(_WIN32) || defined(__FreeBSD__)
 237             "%EC='平成'\t"
 238             "%Ey='16'\t"
 239             "%EY='平成16年'\t"
 240             "%Oy='四'\t"
 241 #endif // defined(__APPLE__) || defined(_AIX) || defined(_WIN32) || defined(__FreeBSD__)
 242             "\n"),
 243         lfmt,
 244         std::chrono::year_month{std::chrono::year{2004}, std::chrono::May});
 245
 246   std::locale::global(std::locale::classic());
 247 }
 248
 249 template <class CharT>
 250 static void test() {
 251   test_no_chrono_specs<CharT>();
 252   test_invalid_values<CharT>();
 253   test_valid_values<CharT>();
 254
 255   check_invalid_types<CharT>(
 256       {SV("b"), SV("B"), SV("C"), SV("EC"), SV("Ey"), SV("EY"), SV("h"), SV("m"), SV("Om"), SV("Oy"), SV("y"), SV("Y")},
 257       std::chrono::year_month{std::chrono::year{1970}, std::chrono::January});
 258
 259   check_exception("The format specifier expects a '%' or a '}'",
 260                   SV("{:A"),
 261                   std::chrono::year_month{std::chrono::year{1970}, std::chrono::January});
 262   check_exception("The chrono specifiers contain a '{'",
 263                   SV("{:%%{"),
 264                   std::chrono::year_month{std::chrono::year{1970}, std::chrono::January});
 265   check_exception("End of input while parsing a conversion specifier",
 266                   SV("{:%"),
 267                   std::chrono::year_month{std::chrono::year{1970}, std::chrono::January});
 268   check_exception("End of input while parsing the modifier E",
 269                   SV("{:%E"),
 270                   std::chrono::year_month{std::chrono::year{1970}, std::chrono::January});
 271   check_exception("End of input while parsing the modifier O",
 272                   SV("{:%O"),
 273                   std::chrono::year_month{std::chrono::year{1970}, std::chrono::January});
 274
 275   // Precision not allowed
 276   check_exception("The format specifier expects a '%' or a '}'",
 277                   SV("{:.3}"),
 278                   std::chrono::year_month{std::chrono::year{1970}, std::chrono::January});
 279 }
 280
 281 int main(int, char**) {
 282   test<char>();
 283
 284 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
 285   test<wchar_t>();
 286 #endif
 287
 288   return 0;
 289 }