diff options
Diffstat (limited to 'third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_lookup_test.cc')
| -rw-r--r-- | third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_lookup_test.cc | 1438 |
1 files changed, 0 insertions, 1438 deletions
diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_lookup_test.cc b/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_lookup_test.cc deleted file mode 100644 index 8f7ab154fa..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_lookup_test.cc +++ /dev/null @@ -1,1438 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include <chrono> -#include <cstddef> -#include <cstdlib> -#include <future> -#include <limits> -#include <string> -#include <thread> -#include <vector> - -#include "gtest/gtest.h" -#include "absl/base/config.h" -#include "absl/time/internal/cctz/include/cctz/civil_time.h" -#include "absl/time/internal/cctz/include/cctz/time_zone.h" - -namespace chrono = std::chrono; - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { - -namespace { - -// A list of known time-zone names. -const char* const kTimeZoneNames[] = {"Africa/Abidjan", - "Africa/Accra", - "Africa/Addis_Ababa", - "Africa/Algiers", - "Africa/Asmara", - "Africa/Asmera", - "Africa/Bamako", - "Africa/Bangui", - "Africa/Banjul", - "Africa/Bissau", - "Africa/Blantyre", - "Africa/Brazzaville", - "Africa/Bujumbura", - "Africa/Cairo", - "Africa/Casablanca", - "Africa/Ceuta", - "Africa/Conakry", - "Africa/Dakar", - "Africa/Dar_es_Salaam", - "Africa/Djibouti", - "Africa/Douala", - "Africa/El_Aaiun", - "Africa/Freetown", - "Africa/Gaborone", - "Africa/Harare", - "Africa/Johannesburg", - "Africa/Juba", - "Africa/Kampala", - "Africa/Khartoum", - "Africa/Kigali", - "Africa/Kinshasa", - "Africa/Lagos", - "Africa/Libreville", - "Africa/Lome", - "Africa/Luanda", - "Africa/Lubumbashi", - "Africa/Lusaka", - "Africa/Malabo", - "Africa/Maputo", - "Africa/Maseru", - "Africa/Mbabane", - "Africa/Mogadishu", - "Africa/Monrovia", - "Africa/Nairobi", - "Africa/Ndjamena", - "Africa/Niamey", - "Africa/Nouakchott", - "Africa/Ouagadougou", - "Africa/Porto-Novo", - "Africa/Sao_Tome", - "Africa/Timbuktu", - "Africa/Tripoli", - "Africa/Tunis", - "Africa/Windhoek", - "America/Adak", - "America/Anchorage", - "America/Anguilla", - "America/Antigua", - "America/Araguaina", - "America/Argentina/Buenos_Aires", - "America/Argentina/Catamarca", - "America/Argentina/ComodRivadavia", - "America/Argentina/Cordoba", - "America/Argentina/Jujuy", - "America/Argentina/La_Rioja", - "America/Argentina/Mendoza", - "America/Argentina/Rio_Gallegos", - "America/Argentina/Salta", - "America/Argentina/San_Juan", - "America/Argentina/San_Luis", - "America/Argentina/Tucuman", - "America/Argentina/Ushuaia", - "America/Aruba", - "America/Asuncion", - "America/Atikokan", - "America/Atka", - "America/Bahia", - "America/Bahia_Banderas", - "America/Barbados", - "America/Belem", - "America/Belize", - "America/Blanc-Sablon", - "America/Boa_Vista", - "America/Bogota", - "America/Boise", - "America/Buenos_Aires", - "America/Cambridge_Bay", - "America/Campo_Grande", - "America/Cancun", - "America/Caracas", - "America/Catamarca", - "America/Cayenne", - "America/Cayman", - "America/Chicago", - "America/Chihuahua", - "America/Coral_Harbour", - "America/Cordoba", - "America/Costa_Rica", - "America/Creston", - "America/Cuiaba", - "America/Curacao", - "America/Danmarkshavn", - "America/Dawson", - "America/Dawson_Creek", - "America/Denver", - "America/Detroit", - "America/Dominica", - "America/Edmonton", - "America/Eirunepe", - "America/El_Salvador", - "America/Ensenada", - "America/Fort_Nelson", - "America/Fort_Wayne", - "America/Fortaleza", - "America/Glace_Bay", - "America/Godthab", - "America/Goose_Bay", - "America/Grand_Turk", - "America/Grenada", - "America/Guadeloupe", - "America/Guatemala", - "America/Guayaquil", - "America/Guyana", - "America/Halifax", - "America/Havana", - "America/Hermosillo", - "America/Indiana/Indianapolis", - "America/Indiana/Knox", - "America/Indiana/Marengo", - "America/Indiana/Petersburg", - "America/Indiana/Tell_City", - "America/Indiana/Vevay", - "America/Indiana/Vincennes", - "America/Indiana/Winamac", - "America/Indianapolis", - "America/Inuvik", - "America/Iqaluit", - "America/Jamaica", - "America/Jujuy", - "America/Juneau", - "America/Kentucky/Louisville", - "America/Kentucky/Monticello", - "America/Knox_IN", - "America/Kralendijk", - "America/La_Paz", - "America/Lima", - "America/Los_Angeles", - "America/Louisville", - "America/Lower_Princes", - "America/Maceio", - "America/Managua", - "America/Manaus", - "America/Marigot", - "America/Martinique", - "America/Matamoros", - "America/Mazatlan", - "America/Mendoza", - "America/Menominee", - "America/Merida", - "America/Metlakatla", - "America/Mexico_City", - "America/Miquelon", - "America/Moncton", - "America/Monterrey", - "America/Montevideo", - "America/Montreal", - "America/Montserrat", - "America/Nassau", - "America/New_York", - "America/Nipigon", - "America/Nome", - "America/Noronha", - "America/North_Dakota/Beulah", - "America/North_Dakota/Center", - "America/North_Dakota/New_Salem", - "America/Nuuk", - "America/Ojinaga", - "America/Panama", - "America/Pangnirtung", - "America/Paramaribo", - "America/Phoenix", - "America/Port-au-Prince", - "America/Port_of_Spain", - "America/Porto_Acre", - "America/Porto_Velho", - "America/Puerto_Rico", - "America/Punta_Arenas", - "America/Rainy_River", - "America/Rankin_Inlet", - "America/Recife", - "America/Regina", - "America/Resolute", - "America/Rio_Branco", - "America/Rosario", - "America/Santa_Isabel", - "America/Santarem", - "America/Santiago", - "America/Santo_Domingo", - "America/Sao_Paulo", - "America/Scoresbysund", - "America/Shiprock", - "America/Sitka", - "America/St_Barthelemy", - "America/St_Johns", - "America/St_Kitts", - "America/St_Lucia", - "America/St_Thomas", - "America/St_Vincent", - "America/Swift_Current", - "America/Tegucigalpa", - "America/Thule", - "America/Thunder_Bay", - "America/Tijuana", - "America/Toronto", - "America/Tortola", - "America/Vancouver", - "America/Virgin", - "America/Whitehorse", - "America/Winnipeg", - "America/Yakutat", - "America/Yellowknife", - "Antarctica/Casey", - "Antarctica/Davis", - "Antarctica/DumontDUrville", - "Antarctica/Macquarie", - "Antarctica/Mawson", - "Antarctica/McMurdo", - "Antarctica/Palmer", - "Antarctica/Rothera", - "Antarctica/South_Pole", - "Antarctica/Syowa", - "Antarctica/Troll", - "Antarctica/Vostok", - "Arctic/Longyearbyen", - "Asia/Aden", - "Asia/Almaty", - "Asia/Amman", - "Asia/Anadyr", - "Asia/Aqtau", - "Asia/Aqtobe", - "Asia/Ashgabat", - "Asia/Ashkhabad", - "Asia/Atyrau", - "Asia/Baghdad", - "Asia/Bahrain", - "Asia/Baku", - "Asia/Bangkok", - "Asia/Barnaul", - "Asia/Beirut", - "Asia/Bishkek", - "Asia/Brunei", - "Asia/Calcutta", - "Asia/Chita", - "Asia/Choibalsan", - "Asia/Chongqing", - "Asia/Chungking", - "Asia/Colombo", - "Asia/Dacca", - "Asia/Damascus", - "Asia/Dhaka", - "Asia/Dili", - "Asia/Dubai", - "Asia/Dushanbe", - "Asia/Famagusta", - "Asia/Gaza", - "Asia/Harbin", - "Asia/Hebron", - "Asia/Ho_Chi_Minh", - "Asia/Hong_Kong", - "Asia/Hovd", - "Asia/Irkutsk", - "Asia/Istanbul", - "Asia/Jakarta", - "Asia/Jayapura", - "Asia/Jerusalem", - "Asia/Kabul", - "Asia/Kamchatka", - "Asia/Karachi", - "Asia/Kashgar", - "Asia/Kathmandu", - "Asia/Katmandu", - "Asia/Khandyga", - "Asia/Kolkata", - "Asia/Krasnoyarsk", - "Asia/Kuala_Lumpur", - "Asia/Kuching", - "Asia/Kuwait", - "Asia/Macao", - "Asia/Macau", - "Asia/Magadan", - "Asia/Makassar", - "Asia/Manila", - "Asia/Muscat", - "Asia/Nicosia", - "Asia/Novokuznetsk", - "Asia/Novosibirsk", - "Asia/Omsk", - "Asia/Oral", - "Asia/Phnom_Penh", - "Asia/Pontianak", - "Asia/Pyongyang", - "Asia/Qatar", - "Asia/Qostanay", - "Asia/Qyzylorda", - "Asia/Rangoon", - "Asia/Riyadh", - "Asia/Saigon", - "Asia/Sakhalin", - "Asia/Samarkand", - "Asia/Seoul", - "Asia/Shanghai", - "Asia/Singapore", - "Asia/Srednekolymsk", - "Asia/Taipei", - "Asia/Tashkent", - "Asia/Tbilisi", - "Asia/Tehran", - "Asia/Tel_Aviv", - "Asia/Thimbu", - "Asia/Thimphu", - "Asia/Tokyo", - "Asia/Tomsk", - "Asia/Ujung_Pandang", - "Asia/Ulaanbaatar", - "Asia/Ulan_Bator", - "Asia/Urumqi", - "Asia/Ust-Nera", - "Asia/Vientiane", - "Asia/Vladivostok", - "Asia/Yakutsk", - "Asia/Yangon", - "Asia/Yekaterinburg", - "Asia/Yerevan", - "Atlantic/Azores", - "Atlantic/Bermuda", - "Atlantic/Canary", - "Atlantic/Cape_Verde", - "Atlantic/Faeroe", - "Atlantic/Faroe", - "Atlantic/Jan_Mayen", - "Atlantic/Madeira", - "Atlantic/Reykjavik", - "Atlantic/South_Georgia", - "Atlantic/St_Helena", - "Atlantic/Stanley", - "Australia/ACT", - "Australia/Adelaide", - "Australia/Brisbane", - "Australia/Broken_Hill", - "Australia/Canberra", - "Australia/Currie", - "Australia/Darwin", - "Australia/Eucla", - "Australia/Hobart", - "Australia/LHI", - "Australia/Lindeman", - "Australia/Lord_Howe", - "Australia/Melbourne", - "Australia/NSW", - "Australia/North", - "Australia/Perth", - "Australia/Queensland", - "Australia/South", - "Australia/Sydney", - "Australia/Tasmania", - "Australia/Victoria", - "Australia/West", - "Australia/Yancowinna", - "Brazil/Acre", - "Brazil/DeNoronha", - "Brazil/East", - "Brazil/West", - "CET", - "CST6CDT", - "Canada/Atlantic", - "Canada/Central", - "Canada/Eastern", - "Canada/Mountain", - "Canada/Newfoundland", - "Canada/Pacific", - "Canada/Saskatchewan", - "Canada/Yukon", - "Chile/Continental", - "Chile/EasterIsland", - "Cuba", - "EET", - "EST", - "EST5EDT", - "Egypt", - "Eire", - "Etc/GMT", - "Etc/GMT+0", - "Etc/GMT+1", - "Etc/GMT+10", - "Etc/GMT+11", - "Etc/GMT+12", - "Etc/GMT+2", - "Etc/GMT+3", - "Etc/GMT+4", - "Etc/GMT+5", - "Etc/GMT+6", - "Etc/GMT+7", - "Etc/GMT+8", - "Etc/GMT+9", - "Etc/GMT-0", - "Etc/GMT-1", - "Etc/GMT-10", - "Etc/GMT-11", - "Etc/GMT-12", - "Etc/GMT-13", - "Etc/GMT-14", - "Etc/GMT-2", - "Etc/GMT-3", - "Etc/GMT-4", - "Etc/GMT-5", - "Etc/GMT-6", - "Etc/GMT-7", - "Etc/GMT-8", - "Etc/GMT-9", - "Etc/GMT0", - "Etc/Greenwich", - "Etc/UCT", - "Etc/UTC", - "Etc/Universal", - "Etc/Zulu", - "Europe/Amsterdam", - "Europe/Andorra", - "Europe/Astrakhan", - "Europe/Athens", - "Europe/Belfast", - "Europe/Belgrade", - "Europe/Berlin", - "Europe/Bratislava", - "Europe/Brussels", - "Europe/Bucharest", - "Europe/Budapest", - "Europe/Busingen", - "Europe/Chisinau", - "Europe/Copenhagen", - "Europe/Dublin", - "Europe/Gibraltar", - "Europe/Guernsey", - "Europe/Helsinki", - "Europe/Isle_of_Man", - "Europe/Istanbul", - "Europe/Jersey", - "Europe/Kaliningrad", - "Europe/Kiev", - "Europe/Kirov", - "Europe/Lisbon", - "Europe/Ljubljana", - "Europe/London", - "Europe/Luxembourg", - "Europe/Madrid", - "Europe/Malta", - "Europe/Mariehamn", - "Europe/Minsk", - "Europe/Monaco", - "Europe/Moscow", - "Europe/Nicosia", - "Europe/Oslo", - "Europe/Paris", - "Europe/Podgorica", - "Europe/Prague", - "Europe/Riga", - "Europe/Rome", - "Europe/Samara", - "Europe/San_Marino", - "Europe/Sarajevo", - "Europe/Saratov", - "Europe/Simferopol", - "Europe/Skopje", - "Europe/Sofia", - "Europe/Stockholm", - "Europe/Tallinn", - "Europe/Tirane", - "Europe/Tiraspol", - "Europe/Ulyanovsk", - "Europe/Uzhgorod", - "Europe/Vaduz", - "Europe/Vatican", - "Europe/Vienna", - "Europe/Vilnius", - "Europe/Volgograd", - "Europe/Warsaw", - "Europe/Zagreb", - "Europe/Zaporozhye", - "Europe/Zurich", - "GB", - "GB-Eire", - "GMT", - "GMT+0", - "GMT-0", - "GMT0", - "Greenwich", - "HST", - "Hongkong", - "Iceland", - "Indian/Antananarivo", - "Indian/Chagos", - "Indian/Christmas", - "Indian/Cocos", - "Indian/Comoro", - "Indian/Kerguelen", - "Indian/Mahe", - "Indian/Maldives", - "Indian/Mauritius", - "Indian/Mayotte", - "Indian/Reunion", - "Iran", - "Israel", - "Jamaica", - "Japan", - "Kwajalein", - "Libya", - "MET", - "MST", - "MST7MDT", - "Mexico/BajaNorte", - "Mexico/BajaSur", - "Mexico/General", - "NZ", - "NZ-CHAT", - "Navajo", - "PRC", - "PST8PDT", - "Pacific/Apia", - "Pacific/Auckland", - "Pacific/Bougainville", - "Pacific/Chatham", - "Pacific/Chuuk", - "Pacific/Easter", - "Pacific/Efate", - "Pacific/Enderbury", - "Pacific/Fakaofo", - "Pacific/Fiji", - "Pacific/Funafuti", - "Pacific/Galapagos", - "Pacific/Gambier", - "Pacific/Guadalcanal", - "Pacific/Guam", - "Pacific/Honolulu", - "Pacific/Johnston", - "Pacific/Kiritimati", - "Pacific/Kosrae", - "Pacific/Kwajalein", - "Pacific/Majuro", - "Pacific/Marquesas", - "Pacific/Midway", - "Pacific/Nauru", - "Pacific/Niue", - "Pacific/Norfolk", - "Pacific/Noumea", - "Pacific/Pago_Pago", - "Pacific/Palau", - "Pacific/Pitcairn", - "Pacific/Pohnpei", - "Pacific/Ponape", - "Pacific/Port_Moresby", - "Pacific/Rarotonga", - "Pacific/Saipan", - "Pacific/Samoa", - "Pacific/Tahiti", - "Pacific/Tarawa", - "Pacific/Tongatapu", - "Pacific/Truk", - "Pacific/Wake", - "Pacific/Wallis", - "Pacific/Yap", - "Poland", - "Portugal", - "ROC", - "ROK", - "Singapore", - "Turkey", - "UCT", - "US/Alaska", - "US/Aleutian", - "US/Arizona", - "US/Central", - "US/East-Indiana", - "US/Eastern", - "US/Hawaii", - "US/Indiana-Starke", - "US/Michigan", - "US/Mountain", - "US/Pacific", - "US/Samoa", - "UTC", - "Universal", - "W-SU", - "WET", - "Zulu", - nullptr}; - -// Helper to return a loaded time zone by value (UTC on error). -time_zone LoadZone(const std::string& name) { - time_zone tz; - load_time_zone(name, &tz); - return tz; -} - -// This helper is a macro so that failed expectations show up with the -// correct line numbers. -#define ExpectTime(tp, tz, y, m, d, hh, mm, ss, off, isdst, zone) \ - do { \ - time_zone::absolute_lookup al = tz.lookup(tp); \ - EXPECT_EQ(y, al.cs.year()); \ - EXPECT_EQ(m, al.cs.month()); \ - EXPECT_EQ(d, al.cs.day()); \ - EXPECT_EQ(hh, al.cs.hour()); \ - EXPECT_EQ(mm, al.cs.minute()); \ - EXPECT_EQ(ss, al.cs.second()); \ - EXPECT_EQ(off, al.offset); \ - EXPECT_TRUE(isdst == al.is_dst); \ - /* EXPECT_STREQ(zone, al.abbr); */ \ - } while (0) - -// These tests sometimes run on platforms that have zoneinfo data so old -// that the transition we are attempting to check does not exist, most -// notably Android emulators. Fortunately, AndroidZoneInfoSource supports -// time_zone::version() so, in cases where we've learned that it matters, -// we can make the check conditionally. -int VersionCmp(time_zone tz, const std::string& target) { - std::string version = tz.version(); - if (version.empty() && !target.empty()) return 1; // unknown > known - return version.compare(target); -} - -} // namespace - -#if !defined(__EMSCRIPTEN__) -TEST(TimeZones, LoadZonesConcurrently) { - std::promise<void> ready_promise; - std::shared_future<void> ready_future(ready_promise.get_future()); - auto load_zones = [ready_future](std::promise<void>* started, - std::set<std::string>* failures) { - started->set_value(); - ready_future.wait(); - for (const char* const* np = kTimeZoneNames; *np != nullptr; ++np) { - std::string zone = *np; - time_zone tz; - if (load_time_zone(zone, &tz)) { - EXPECT_EQ(zone, tz.name()); - } else { - failures->insert(zone); - } - } - }; - - const std::size_t n_threads = 128; - std::vector<std::thread> threads; - std::vector<std::set<std::string>> thread_failures(n_threads); - for (std::size_t i = 0; i != n_threads; ++i) { - std::promise<void> started; - threads.emplace_back(load_zones, &started, &thread_failures[i]); - started.get_future().wait(); - } - ready_promise.set_value(); - for (auto& thread : threads) { - thread.join(); - } - - // Allow a small number of failures to account for skew between - // the contents of kTimeZoneNames and the zoneinfo data source. -#if defined(__ANDROID__) - // Cater to the possibility of using an even older zoneinfo data - // source when running on Android, where it is difficult to override - // the bionic tzdata provided by the test environment. - const std::size_t max_failures = 20; -#else - const std::size_t max_failures = 3; -#endif - std::set<std::string> failures; - for (const auto& thread_failure : thread_failures) { - failures.insert(thread_failure.begin(), thread_failure.end()); - } - EXPECT_LE(failures.size(), max_failures) << testing::PrintToString(failures); -} -#endif - -TEST(TimeZone, NamedTimeZones) { - const time_zone utc = utc_time_zone(); - EXPECT_EQ("UTC", utc.name()); - const time_zone nyc = LoadZone("America/New_York"); - EXPECT_EQ("America/New_York", nyc.name()); - const time_zone syd = LoadZone("Australia/Sydney"); - EXPECT_EQ("Australia/Sydney", syd.name()); - const time_zone fixed0 = - fixed_time_zone(absl::time_internal::cctz::seconds::zero()); - EXPECT_EQ("UTC", fixed0.name()); - const time_zone fixed_pos = fixed_time_zone( - chrono::hours(3) + chrono::minutes(25) + chrono::seconds(45)); - EXPECT_EQ("Fixed/UTC+03:25:45", fixed_pos.name()); - const time_zone fixed_neg = fixed_time_zone( - -(chrono::hours(12) + chrono::minutes(34) + chrono::seconds(56))); - EXPECT_EQ("Fixed/UTC-12:34:56", fixed_neg.name()); -} - -TEST(TimeZone, Failures) { - time_zone tz; - EXPECT_FALSE(load_time_zone(":America/Los_Angeles", &tz)); - - tz = LoadZone("America/Los_Angeles"); - EXPECT_FALSE(load_time_zone("Invalid/TimeZone", &tz)); - EXPECT_EQ(chrono::system_clock::from_time_t(0), - convert(civil_second(1970, 1, 1, 0, 0, 0), tz)); // UTC - - // Ensures that the load still fails on a subsequent attempt. - tz = LoadZone("America/Los_Angeles"); - EXPECT_FALSE(load_time_zone("Invalid/TimeZone", &tz)); - EXPECT_EQ(chrono::system_clock::from_time_t(0), - convert(civil_second(1970, 1, 1, 0, 0, 0), tz)); // UTC - - // Loading an empty string timezone should fail. - tz = LoadZone("America/Los_Angeles"); - EXPECT_FALSE(load_time_zone("", &tz)); - EXPECT_EQ(chrono::system_clock::from_time_t(0), - convert(civil_second(1970, 1, 1, 0, 0, 0), tz)); // UTC -} - -TEST(TimeZone, Equality) { - const time_zone a; - const time_zone b; - EXPECT_EQ(a, b); - EXPECT_EQ(a.name(), b.name()); - - const time_zone implicit_utc; - const time_zone explicit_utc = utc_time_zone(); - EXPECT_EQ(implicit_utc, explicit_utc); - EXPECT_EQ(implicit_utc.name(), explicit_utc.name()); - - const time_zone fixed_zero = - fixed_time_zone(absl::time_internal::cctz::seconds::zero()); - EXPECT_EQ(fixed_zero, LoadZone(fixed_zero.name())); - EXPECT_EQ(fixed_zero, explicit_utc); - - const time_zone fixed_utc = LoadZone("Fixed/UTC+00:00:00"); - EXPECT_EQ(fixed_utc, LoadZone(fixed_utc.name())); - EXPECT_EQ(fixed_utc, explicit_utc); - - const time_zone fixed_pos = fixed_time_zone( - chrono::hours(3) + chrono::minutes(25) + chrono::seconds(45)); - EXPECT_EQ(fixed_pos, LoadZone(fixed_pos.name())); - EXPECT_NE(fixed_pos, explicit_utc); - const time_zone fixed_neg = fixed_time_zone( - -(chrono::hours(12) + chrono::minutes(34) + chrono::seconds(56))); - EXPECT_EQ(fixed_neg, LoadZone(fixed_neg.name())); - EXPECT_NE(fixed_neg, explicit_utc); - - const time_zone fixed_lim = fixed_time_zone(chrono::hours(24)); - EXPECT_EQ(fixed_lim, LoadZone(fixed_lim.name())); - EXPECT_NE(fixed_lim, explicit_utc); - const time_zone fixed_ovfl = - fixed_time_zone(chrono::hours(24) + chrono::seconds(1)); - EXPECT_EQ(fixed_ovfl, LoadZone(fixed_ovfl.name())); - EXPECT_EQ(fixed_ovfl, explicit_utc); - - EXPECT_EQ(fixed_time_zone(chrono::seconds(1)), - fixed_time_zone(chrono::seconds(1))); - - const time_zone local = local_time_zone(); - EXPECT_EQ(local, LoadZone(local.name())); - - time_zone la = LoadZone("America/Los_Angeles"); - time_zone nyc = LoadZone("America/New_York"); - EXPECT_NE(la, nyc); -} - -TEST(StdChronoTimePoint, TimeTAlignment) { - // Ensures that the Unix epoch and the system clock epoch are an integral - // number of seconds apart. This simplifies conversions to/from time_t. - auto diff = - chrono::system_clock::time_point() - chrono::system_clock::from_time_t(0); - EXPECT_EQ(chrono::system_clock::time_point::duration::zero(), - diff % chrono::seconds(1)); -} - -TEST(BreakTime, TimePointResolution) { - const time_zone utc = utc_time_zone(); - const auto t0 = chrono::system_clock::from_time_t(0); - - ExpectTime(chrono::time_point_cast<chrono::nanoseconds>(t0), utc, 1970, 1, 1, - 0, 0, 0, 0, false, "UTC"); - ExpectTime(chrono::time_point_cast<chrono::microseconds>(t0), utc, 1970, 1, 1, - 0, 0, 0, 0, false, "UTC"); - ExpectTime(chrono::time_point_cast<chrono::milliseconds>(t0), utc, 1970, 1, 1, - 0, 0, 0, 0, false, "UTC"); - ExpectTime(chrono::time_point_cast<chrono::seconds>(t0), utc, 1970, 1, 1, 0, - 0, 0, 0, false, "UTC"); - ExpectTime(chrono::time_point_cast<absl::time_internal::cctz::seconds>(t0), - utc, 1970, 1, 1, 0, 0, 0, 0, false, "UTC"); - ExpectTime(chrono::time_point_cast<chrono::minutes>(t0), utc, 1970, 1, 1, 0, - 0, 0, 0, false, "UTC"); - ExpectTime(chrono::time_point_cast<chrono::hours>(t0), utc, 1970, 1, 1, 0, 0, - 0, 0, false, "UTC"); -} - -TEST(BreakTime, LocalTimeInUTC) { - const time_zone tz = utc_time_zone(); - const auto tp = chrono::system_clock::from_time_t(0); - ExpectTime(tp, tz, 1970, 1, 1, 0, 0, 0, 0, false, "UTC"); - EXPECT_EQ(weekday::thursday, get_weekday(convert(tp, tz))); -} - -TEST(BreakTime, LocalTimeInUTCUnaligned) { - const time_zone tz = utc_time_zone(); - const auto tp = - chrono::system_clock::from_time_t(0) - chrono::milliseconds(500); - ExpectTime(tp, tz, 1969, 12, 31, 23, 59, 59, 0, false, "UTC"); - EXPECT_EQ(weekday::wednesday, get_weekday(convert(tp, tz))); -} - -TEST(BreakTime, LocalTimePosix) { - // See IEEE Std 1003.1-1988 B.2.3 General Terms, Epoch. - const time_zone tz = utc_time_zone(); - const auto tp = chrono::system_clock::from_time_t(536457599); - ExpectTime(tp, tz, 1986, 12, 31, 23, 59, 59, 0, false, "UTC"); - EXPECT_EQ(weekday::wednesday, get_weekday(convert(tp, tz))); -} - -TEST(TimeZoneImpl, LocalTimeInFixed) { - const absl::time_internal::cctz::seconds offset = - -(chrono::hours(8) + chrono::minutes(33) + chrono::seconds(47)); - const time_zone tz = fixed_time_zone(offset); - const auto tp = chrono::system_clock::from_time_t(0); - ExpectTime(tp, tz, 1969, 12, 31, 15, 26, 13, offset.count(), false, - "-083347"); - EXPECT_EQ(weekday::wednesday, get_weekday(convert(tp, tz))); -} - -TEST(BreakTime, LocalTimeInNewYork) { - const time_zone tz = LoadZone("America/New_York"); - const auto tp = chrono::system_clock::from_time_t(45); - ExpectTime(tp, tz, 1969, 12, 31, 19, 0, 45, -5 * 60 * 60, false, "EST"); - EXPECT_EQ(weekday::wednesday, get_weekday(convert(tp, tz))); -} - -TEST(BreakTime, LocalTimeInMTV) { - const time_zone tz = LoadZone("America/Los_Angeles"); - const auto tp = chrono::system_clock::from_time_t(1380855729); - ExpectTime(tp, tz, 2013, 10, 3, 20, 2, 9, -7 * 60 * 60, true, "PDT"); - EXPECT_EQ(weekday::thursday, get_weekday(convert(tp, tz))); -} - -TEST(BreakTime, LocalTimeInSydney) { - const time_zone tz = LoadZone("Australia/Sydney"); - const auto tp = chrono::system_clock::from_time_t(90); - ExpectTime(tp, tz, 1970, 1, 1, 10, 1, 30, 10 * 60 * 60, false, "AEST"); - EXPECT_EQ(weekday::thursday, get_weekday(convert(tp, tz))); -} - -TEST(MakeTime, TimePointResolution) { - const time_zone utc = utc_time_zone(); - const time_point<chrono::nanoseconds> tp_ns = - convert(civil_second(2015, 1, 2, 3, 4, 5), utc); - EXPECT_EQ("04:05", format("%M:%E*S", tp_ns, utc)); - const time_point<chrono::microseconds> tp_us = - convert(civil_second(2015, 1, 2, 3, 4, 5), utc); - EXPECT_EQ("04:05", format("%M:%E*S", tp_us, utc)); - const time_point<chrono::milliseconds> tp_ms = - convert(civil_second(2015, 1, 2, 3, 4, 5), utc); - EXPECT_EQ("04:05", format("%M:%E*S", tp_ms, utc)); - const time_point<chrono::seconds> tp_s = - convert(civil_second(2015, 1, 2, 3, 4, 5), utc); - EXPECT_EQ("04:05", format("%M:%E*S", tp_s, utc)); - const time_point<absl::time_internal::cctz::seconds> tp_s64 = - convert(civil_second(2015, 1, 2, 3, 4, 5), utc); - EXPECT_EQ("04:05", format("%M:%E*S", tp_s64, utc)); - - // These next two require chrono::time_point_cast because the conversion - // from a resolution of seconds (the return value of convert()) to a - // coarser resolution requires an explicit cast. - const time_point<chrono::minutes> tp_m = - chrono::time_point_cast<chrono::minutes>( - convert(civil_second(2015, 1, 2, 3, 4, 5), utc)); - EXPECT_EQ("04:00", format("%M:%E*S", tp_m, utc)); - const time_point<chrono::hours> tp_h = chrono::time_point_cast<chrono::hours>( - convert(civil_second(2015, 1, 2, 3, 4, 5), utc)); - EXPECT_EQ("00:00", format("%M:%E*S", tp_h, utc)); -} - -TEST(MakeTime, Normalization) { - const time_zone tz = LoadZone("America/New_York"); - const auto tp = convert(civil_second(2009, 2, 13, 18, 31, 30), tz); - EXPECT_EQ(chrono::system_clock::from_time_t(1234567890), tp); - - // Now requests for the same time_point but with out-of-range fields. - EXPECT_EQ(tp, convert(civil_second(2008, 14, 13, 18, 31, 30), tz)); // month - EXPECT_EQ(tp, convert(civil_second(2009, 1, 44, 18, 31, 30), tz)); // day - EXPECT_EQ(tp, convert(civil_second(2009, 2, 12, 42, 31, 30), tz)); // hour - EXPECT_EQ(tp, convert(civil_second(2009, 2, 13, 17, 91, 30), tz)); // minute - EXPECT_EQ(tp, convert(civil_second(2009, 2, 13, 18, 30, 90), tz)); // second -} - -// NOTE: Run this with -ftrapv to detect overflow problems. -TEST(MakeTime, SysSecondsLimits) { - const char RFC3339[] = "%Y-%m-%d%ET%H:%M:%S%Ez"; - const time_zone utc = utc_time_zone(); - const time_zone east = fixed_time_zone(chrono::hours(14)); - const time_zone west = fixed_time_zone(-chrono::hours(14)); - time_point<absl::time_internal::cctz::seconds> tp; - - // Approach the maximal time_point<cctz::seconds> value from below. - tp = convert(civil_second(292277026596, 12, 4, 15, 30, 6), utc); - EXPECT_EQ("292277026596-12-04T15:30:06+00:00", format(RFC3339, tp, utc)); - tp = convert(civil_second(292277026596, 12, 4, 15, 30, 7), utc); - EXPECT_EQ("292277026596-12-04T15:30:07+00:00", format(RFC3339, tp, utc)); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp); - tp = convert(civil_second(292277026596, 12, 4, 15, 30, 8), utc); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp); - tp = convert(civil_second::max(), utc); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp); - - // Checks that we can also get the maximal value for a far-east zone. - tp = convert(civil_second(292277026596, 12, 5, 5, 30, 7), east); - EXPECT_EQ("292277026596-12-05T05:30:07+14:00", format(RFC3339, tp, east)); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp); - tp = convert(civil_second(292277026596, 12, 5, 5, 30, 8), east); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp); - tp = convert(civil_second::max(), east); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp); - - // Checks that we can also get the maximal value for a far-west zone. - tp = convert(civil_second(292277026596, 12, 4, 1, 30, 7), west); - EXPECT_EQ("292277026596-12-04T01:30:07-14:00", format(RFC3339, tp, west)); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp); - tp = convert(civil_second(292277026596, 12, 4, 7, 30, 8), west); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp); - tp = convert(civil_second::max(), west); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp); - - // Approach the minimal time_point<cctz::seconds> value from above. - tp = convert(civil_second(-292277022657, 1, 27, 8, 29, 53), utc); - EXPECT_EQ("-292277022657-01-27T08:29:53+00:00", format(RFC3339, tp, utc)); - tp = convert(civil_second(-292277022657, 1, 27, 8, 29, 52), utc); - EXPECT_EQ("-292277022657-01-27T08:29:52+00:00", format(RFC3339, tp, utc)); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp); - tp = convert(civil_second(-292277022657, 1, 27, 8, 29, 51), utc); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp); - tp = convert(civil_second::min(), utc); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp); - - // Checks that we can also get the minimal value for a far-east zone. - tp = convert(civil_second(-292277022657, 1, 27, 22, 29, 52), east); - EXPECT_EQ("-292277022657-01-27T22:29:52+14:00", format(RFC3339, tp, east)); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp); - tp = convert(civil_second(-292277022657, 1, 27, 22, 29, 51), east); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp); - tp = convert(civil_second::min(), east); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp); - - // Checks that we can also get the minimal value for a far-west zone. - tp = convert(civil_second(-292277022657, 1, 26, 18, 29, 52), west); - EXPECT_EQ("-292277022657-01-26T18:29:52-14:00", format(RFC3339, tp, west)); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp); - tp = convert(civil_second(-292277022657, 1, 26, 18, 29, 51), west); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp); - tp = convert(civil_second::min(), west); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp); - - // Some similar checks for the "libc" time-zone implementation. - if (sizeof(std::time_t) >= 8) { - // Checks that "tm_year + 1900", as used by the "libc" implementation, - // can produce year values beyond the range on an int without overflow. -#if defined(_WIN32) || defined(_WIN64) - // localtime_s() and gmtime_s() don't believe in years outside [1970:3000]. -#else - const time_zone utc = LoadZone("libc:UTC"); - const year_t max_tm_year = year_t{std::numeric_limits<int>::max()} + 1900; - tp = convert(civil_second(max_tm_year, 12, 31, 23, 59, 59), utc); - EXPECT_EQ("2147485547-12-31T23:59:59+00:00", format(RFC3339, tp, utc)); - const year_t min_tm_year = year_t{std::numeric_limits<int>::min()} + 1900; - tp = convert(civil_second(min_tm_year, 1, 1, 0, 0, 0), utc); - EXPECT_EQ("-2147481748-01-01T00:00:00+00:00", format(RFC3339, tp, utc)); -#endif - } -} - -TEST(MakeTime, LocalTimeLibC) { - // Checks that cctz and libc agree on transition points in [1970:2037]. - // - // We limit this test case to environments where: - // 1) we know how to change the time zone used by localtime()/mktime(), - // 2) cctz and localtime()/mktime() will use similar-enough tzdata, and - // 3) we have some idea about how mktime() behaves during transitions. -#if defined(__linux__) && !defined(__ANDROID__) - const char* const ep = getenv("TZ"); - std::string tz_name = (ep != nullptr) ? ep : ""; - for (const char* const* np = kTimeZoneNames; *np != nullptr; ++np) { - ASSERT_EQ(0, setenv("TZ", *np, 1)); // change what "localtime" means - const auto zi = local_time_zone(); - const auto lc = LoadZone("libc:localtime"); - time_zone::civil_transition transition; - for (auto tp = zi.lookup(civil_second()).trans; - zi.next_transition(tp, &transition); - tp = zi.lookup(transition.to).trans) { - const auto fcl = zi.lookup(transition.from); - const auto tcl = zi.lookup(transition.to); - civil_second cs; // compare cs in zi and lc - if (fcl.kind == time_zone::civil_lookup::UNIQUE) { - if (tcl.kind == time_zone::civil_lookup::UNIQUE) { - // Both unique; must be an is_dst or abbr change. - ASSERT_EQ(transition.from, transition.to); - const auto trans = fcl.trans; - const auto tal = zi.lookup(trans); - const auto tprev = trans - absl::time_internal::cctz::seconds(1); - const auto pal = zi.lookup(tprev); - if (pal.is_dst == tal.is_dst) { - ASSERT_STRNE(pal.abbr, tal.abbr); - } - continue; - } - ASSERT_EQ(time_zone::civil_lookup::REPEATED, tcl.kind); - cs = transition.to; - } else { - ASSERT_EQ(time_zone::civil_lookup::UNIQUE, tcl.kind); - ASSERT_EQ(time_zone::civil_lookup::SKIPPED, fcl.kind); - cs = transition.from; - } - if (cs.year() > 2037) break; // limit test time (and to 32-bit time_t) - const auto cl_zi = zi.lookup(cs); - if (zi.lookup(cl_zi.pre).is_dst == zi.lookup(cl_zi.post).is_dst) { - // The "libc" implementation cannot correctly classify transitions - // that don't change the "tm_isdst" flag. In Europe/Volgograd, for - // example, there is a SKIPPED transition from +03 to +04 with dst=F - // on both sides ... - // 1540681199 = 2018-10-28 01:59:59 +03:00:00 [dst=F off=10800] - // 1540681200 = 2018-10-28 03:00:00 +04:00:00 [dst=F off=14400] - // but std::mktime(2018-10-28 02:00:00, tm_isdst=0) fails, unlike, - // say, the similar Europe/Chisinau transition from +02 to +03 ... - // 1521935999 = 2018-03-25 01:59:59 +02:00:00 [dst=F off=7200] - // 1521936000 = 2018-03-25 03:00:00 +03:00:00 [dst=T off=10800] - // where std::mktime(2018-03-25 02:00:00, tm_isdst=0) succeeds and - // returns 1521936000. - continue; - } - if (cs == civil_second(2037, 10, 4, 2, 0, 0)) { - const std::string tzname = *np; - if (tzname == "Africa/Casablanca" || tzname == "Africa/El_Aaiun") { - // The "libc" implementation gets this transition wrong (at least - // until 2018g when it was removed), returning an offset of 3600 - // instead of 0. TODO: Revert this when 2018g is ubiquitous. - continue; - } - } - const auto cl_lc = lc.lookup(cs); - SCOPED_TRACE(testing::Message() << "For " << cs << " in " << *np); - EXPECT_EQ(cl_zi.kind, cl_lc.kind); - EXPECT_EQ(cl_zi.pre, cl_lc.pre); - EXPECT_EQ(cl_zi.trans, cl_lc.trans); - EXPECT_EQ(cl_zi.post, cl_lc.post); - } - } - if (ep == nullptr) { - ASSERT_EQ(0, unsetenv("TZ")); - } else { - ASSERT_EQ(0, setenv("TZ", tz_name.c_str(), 1)); - } -#endif -} - -TEST(NextTransition, UTC) { - const auto tz = utc_time_zone(); - time_zone::civil_transition trans; - - auto tp = time_point<absl::time_internal::cctz::seconds>::min(); - EXPECT_FALSE(tz.next_transition(tp, &trans)); - - tp = time_point<absl::time_internal::cctz::seconds>::max(); - EXPECT_FALSE(tz.next_transition(tp, &trans)); -} - -TEST(PrevTransition, UTC) { - const auto tz = utc_time_zone(); - time_zone::civil_transition trans; - - auto tp = time_point<absl::time_internal::cctz::seconds>::max(); - EXPECT_FALSE(tz.prev_transition(tp, &trans)); - - tp = time_point<absl::time_internal::cctz::seconds>::min(); - EXPECT_FALSE(tz.prev_transition(tp, &trans)); -} - -TEST(NextTransition, AmericaNewYork) { - const auto tz = LoadZone("America/New_York"); - time_zone::civil_transition trans; - - auto tp = convert(civil_second(2018, 6, 30, 0, 0, 0), tz); - EXPECT_TRUE(tz.next_transition(tp, &trans)); - EXPECT_EQ(civil_second(2018, 11, 4, 2, 0, 0), trans.from); - EXPECT_EQ(civil_second(2018, 11, 4, 1, 0, 0), trans.to); - - tp = time_point<absl::time_internal::cctz::seconds>::max(); - EXPECT_FALSE(tz.next_transition(tp, &trans)); - - tp = time_point<absl::time_internal::cctz::seconds>::min(); - EXPECT_TRUE(tz.next_transition(tp, &trans)); - if (trans.from == civil_second(1918, 3, 31, 2, 0, 0)) { - // It looks like the tzdata is only 32 bit (probably macOS), - // which bottoms out at 1901-12-13T20:45:52+00:00. - EXPECT_EQ(civil_second(1918, 3, 31, 3, 0, 0), trans.to); - } else { - EXPECT_EQ(civil_second(1883, 11, 18, 12, 3, 58), trans.from); - EXPECT_EQ(civil_second(1883, 11, 18, 12, 0, 0), trans.to); - } -} - -TEST(PrevTransition, AmericaNewYork) { - const auto tz = LoadZone("America/New_York"); - time_zone::civil_transition trans; - - auto tp = convert(civil_second(2018, 6, 30, 0, 0, 0), tz); - EXPECT_TRUE(tz.prev_transition(tp, &trans)); - EXPECT_EQ(civil_second(2018, 3, 11, 2, 0, 0), trans.from); - EXPECT_EQ(civil_second(2018, 3, 11, 3, 0, 0), trans.to); - - tp = time_point<absl::time_internal::cctz::seconds>::min(); - EXPECT_FALSE(tz.prev_transition(tp, &trans)); - - tp = time_point<absl::time_internal::cctz::seconds>::max(); - EXPECT_TRUE(tz.prev_transition(tp, &trans)); - // We have a transition but we don't know which one. -} - -TEST(TimeZoneEdgeCase, AmericaNewYork) { - const time_zone tz = LoadZone("America/New_York"); - - // Spring 1:59:59 -> 3:00:00 - auto tp = convert(civil_second(2013, 3, 10, 1, 59, 59), tz); - ExpectTime(tp, tz, 2013, 3, 10, 1, 59, 59, -5 * 3600, false, "EST"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2013, 3, 10, 3, 0, 0, -4 * 3600, true, "EDT"); - - // Fall 1:59:59 -> 1:00:00 - tp = convert(civil_second(2013, 11, 3, 1, 59, 59), tz); - ExpectTime(tp, tz, 2013, 11, 3, 1, 59, 59, -4 * 3600, true, "EDT"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2013, 11, 3, 1, 0, 0, -5 * 3600, false, "EST"); -} - -TEST(TimeZoneEdgeCase, AmericaLosAngeles) { - const time_zone tz = LoadZone("America/Los_Angeles"); - - // Spring 1:59:59 -> 3:00:00 - auto tp = convert(civil_second(2013, 3, 10, 1, 59, 59), tz); - ExpectTime(tp, tz, 2013, 3, 10, 1, 59, 59, -8 * 3600, false, "PST"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2013, 3, 10, 3, 0, 0, -7 * 3600, true, "PDT"); - - // Fall 1:59:59 -> 1:00:00 - tp = convert(civil_second(2013, 11, 3, 1, 59, 59), tz); - ExpectTime(tp, tz, 2013, 11, 3, 1, 59, 59, -7 * 3600, true, "PDT"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2013, 11, 3, 1, 0, 0, -8 * 3600, false, "PST"); -} - -TEST(TimeZoneEdgeCase, ArizonaNoTransition) { - const time_zone tz = LoadZone("America/Phoenix"); - - // No transition in Spring. - auto tp = convert(civil_second(2013, 3, 10, 1, 59, 59), tz); - ExpectTime(tp, tz, 2013, 3, 10, 1, 59, 59, -7 * 3600, false, "MST"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2013, 3, 10, 2, 0, 0, -7 * 3600, false, "MST"); - - // No transition in Fall. - tp = convert(civil_second(2013, 11, 3, 1, 59, 59), tz); - ExpectTime(tp, tz, 2013, 11, 3, 1, 59, 59, -7 * 3600, false, "MST"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2013, 11, 3, 2, 0, 0, -7 * 3600, false, "MST"); -} - -TEST(TimeZoneEdgeCase, AsiaKathmandu) { - const time_zone tz = LoadZone("Asia/Kathmandu"); - - // A non-DST offset change from +0530 to +0545 - // - // 504901799 == Tue, 31 Dec 1985 23:59:59 +0530 (+0530) - // 504901800 == Wed, 1 Jan 1986 00:15:00 +0545 (+0545) - auto tp = convert(civil_second(1985, 12, 31, 23, 59, 59), tz); - ExpectTime(tp, tz, 1985, 12, 31, 23, 59, 59, 5.5 * 3600, false, "+0530"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 1986, 1, 1, 0, 15, 0, 5.75 * 3600, false, "+0545"); -} - -TEST(TimeZoneEdgeCase, PacificChatham) { - const time_zone tz = LoadZone("Pacific/Chatham"); - - // One-hour DST offset changes, but at atypical values - // - // 1365256799 == Sun, 7 Apr 2013 03:44:59 +1345 (+1345) - // 1365256800 == Sun, 7 Apr 2013 02:45:00 +1245 (+1245) - auto tp = convert(civil_second(2013, 4, 7, 3, 44, 59), tz); - ExpectTime(tp, tz, 2013, 4, 7, 3, 44, 59, 13.75 * 3600, true, "+1345"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2013, 4, 7, 2, 45, 0, 12.75 * 3600, false, "+1245"); - - // 1380376799 == Sun, 29 Sep 2013 02:44:59 +1245 (+1245) - // 1380376800 == Sun, 29 Sep 2013 03:45:00 +1345 (+1345) - tp = convert(civil_second(2013, 9, 29, 2, 44, 59), tz); - ExpectTime(tp, tz, 2013, 9, 29, 2, 44, 59, 12.75 * 3600, false, "+1245"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2013, 9, 29, 3, 45, 0, 13.75 * 3600, true, "+1345"); -} - -TEST(TimeZoneEdgeCase, AustraliaLordHowe) { - const time_zone tz = LoadZone("Australia/Lord_Howe"); - - // Half-hour DST offset changes - // - // 1365260399 == Sun, 7 Apr 2013 01:59:59 +1100 (+11) - // 1365260400 == Sun, 7 Apr 2013 01:30:00 +1030 (+1030) - auto tp = convert(civil_second(2013, 4, 7, 1, 59, 59), tz); - ExpectTime(tp, tz, 2013, 4, 7, 1, 59, 59, 11 * 3600, true, "+11"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2013, 4, 7, 1, 30, 0, 10.5 * 3600, false, "+1030"); - - // 1380986999 == Sun, 6 Oct 2013 01:59:59 +1030 (+1030) - // 1380987000 == Sun, 6 Oct 2013 02:30:00 +1100 (+11) - tp = convert(civil_second(2013, 10, 6, 1, 59, 59), tz); - ExpectTime(tp, tz, 2013, 10, 6, 1, 59, 59, 10.5 * 3600, false, "+1030"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2013, 10, 6, 2, 30, 0, 11 * 3600, true, "+11"); -} - -TEST(TimeZoneEdgeCase, PacificApia) { - const time_zone tz = LoadZone("Pacific/Apia"); - - // At the end of December 2011, Samoa jumped forward by one day, - // skipping 30 December from the local calendar, when the nation - // moved to the west of the International Date Line. - // - // A one-day, non-DST offset change - // - // 1325239199 == Thu, 29 Dec 2011 23:59:59 -1000 (-10) - // 1325239200 == Sat, 31 Dec 2011 00:00:00 +1400 (+14) - auto tp = convert(civil_second(2011, 12, 29, 23, 59, 59), tz); - ExpectTime(tp, tz, 2011, 12, 29, 23, 59, 59, -10 * 3600, true, "-10"); - EXPECT_EQ(363, get_yearday(convert(tp, tz))); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2011, 12, 31, 0, 0, 0, 14 * 3600, true, "+14"); - EXPECT_EQ(365, get_yearday(convert(tp, tz))); -} - -TEST(TimeZoneEdgeCase, AfricaCairo) { - const time_zone tz = LoadZone("Africa/Cairo"); - - if (VersionCmp(tz, "2014c") >= 0) { - // An interesting case of midnight not existing. - // - // 1400191199 == Thu, 15 May 2014 23:59:59 +0200 (EET) - // 1400191200 == Fri, 16 May 2014 01:00:00 +0300 (EEST) - auto tp = convert(civil_second(2014, 5, 15, 23, 59, 59), tz); - ExpectTime(tp, tz, 2014, 5, 15, 23, 59, 59, 2 * 3600, false, "EET"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2014, 5, 16, 1, 0, 0, 3 * 3600, true, "EEST"); - } -} - -TEST(TimeZoneEdgeCase, AfricaMonrovia) { - const time_zone tz = LoadZone("Africa/Monrovia"); - - if (VersionCmp(tz, "2017b") >= 0) { - // Strange offset change -00:44:30 -> +00:00:00 (non-DST) - // - // 63593069 == Thu, 6 Jan 1972 23:59:59 -0044 (MMT) - // 63593070 == Fri, 7 Jan 1972 00:44:30 +0000 (GMT) - auto tp = convert(civil_second(1972, 1, 6, 23, 59, 59), tz); - ExpectTime(tp, tz, 1972, 1, 6, 23, 59, 59, -44.5 * 60, false, "MMT"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 1972, 1, 7, 0, 44, 30, 0 * 60, false, "GMT"); - } -} - -TEST(TimeZoneEdgeCase, AmericaJamaica) { - // Jamaica discontinued DST transitions in 1983, and is now at a - // constant -0500. This makes it an interesting edge-case target. - // Note that the 32-bit times used in a (tzh_version == 0) zoneinfo - // file cannot represent the abbreviation-only transition of 1890, - // so we ignore the abbreviation by expecting what we received. - const time_zone tz = LoadZone("America/Jamaica"); - - // Before the first transition. - if (!tz.version().empty() && VersionCmp(tz, "2018d") >= 0) { - // We avoid the expectations on the -18430 offset below unless we are - // certain we have commit 907241e (Fix off-by-1 error for Jamaica and - // T&C before 1913) from 2018d. TODO: Remove the "version() not empty" - // part when 2018d is generally available from /usr/share/zoneinfo. - auto tp = convert(civil_second(1889, 12, 31, 0, 0, 0), tz); - ExpectTime(tp, tz, 1889, 12, 31, 0, 0, 0, -18430, false, - tz.lookup(tp).abbr); - - // Over the first (abbreviation-change only) transition. - // -2524503170 == Tue, 31 Dec 1889 23:59:59 -0507 (LMT) - // -2524503169 == Wed, 1 Jan 1890 00:00:00 -0507 (KMT) - tp = convert(civil_second(1889, 12, 31, 23, 59, 59), tz); - ExpectTime(tp, tz, 1889, 12, 31, 23, 59, 59, -18430, false, - tz.lookup(tp).abbr); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 1890, 1, 1, 0, 0, 0, -18430, false, "KMT"); - } - - // Over the last (DST) transition. - // 436341599 == Sun, 30 Oct 1983 01:59:59 -0400 (EDT) - // 436341600 == Sun, 30 Oct 1983 01:00:00 -0500 (EST) - auto tp = convert(civil_second(1983, 10, 30, 1, 59, 59), tz); - ExpectTime(tp, tz, 1983, 10, 30, 1, 59, 59, -4 * 3600, true, "EDT"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 1983, 10, 30, 1, 0, 0, -5 * 3600, false, "EST"); - - // After the last transition. - tp = convert(civil_second(1983, 12, 31, 23, 59, 59), tz); - ExpectTime(tp, tz, 1983, 12, 31, 23, 59, 59, -5 * 3600, false, "EST"); -} - -TEST(TimeZoneEdgeCase, WET) { - // Cover some non-existent times within forward transitions. - const time_zone tz = LoadZone("WET"); - - // Before the first transition. - auto tp = convert(civil_second(1977, 1, 1, 0, 0, 0), tz); - ExpectTime(tp, tz, 1977, 1, 1, 0, 0, 0, 0, false, "WET"); - - // Over the first transition. - // 228877199 == Sun, 3 Apr 1977 00:59:59 +0000 (WET) - // 228877200 == Sun, 3 Apr 1977 02:00:00 +0100 (WEST) - tp = convert(civil_second(1977, 4, 3, 0, 59, 59), tz); - ExpectTime(tp, tz, 1977, 4, 3, 0, 59, 59, 0, false, "WET"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 1977, 4, 3, 2, 0, 0, 1 * 3600, true, "WEST"); - - // A non-existent time within the first transition. - time_zone::civil_lookup cl1 = tz.lookup(civil_second(1977, 4, 3, 1, 15, 0)); - EXPECT_EQ(time_zone::civil_lookup::SKIPPED, cl1.kind); - ExpectTime(cl1.pre, tz, 1977, 4, 3, 2, 15, 0, 1 * 3600, true, "WEST"); - ExpectTime(cl1.trans, tz, 1977, 4, 3, 2, 0, 0, 1 * 3600, true, "WEST"); - ExpectTime(cl1.post, tz, 1977, 4, 3, 0, 15, 0, 0 * 3600, false, "WET"); - - // A non-existent time within the second forward transition. - time_zone::civil_lookup cl2 = tz.lookup(civil_second(1978, 4, 2, 1, 15, 0)); - EXPECT_EQ(time_zone::civil_lookup::SKIPPED, cl2.kind); - ExpectTime(cl2.pre, tz, 1978, 4, 2, 2, 15, 0, 1 * 3600, true, "WEST"); - ExpectTime(cl2.trans, tz, 1978, 4, 2, 2, 0, 0, 1 * 3600, true, "WEST"); - ExpectTime(cl2.post, tz, 1978, 4, 2, 0, 15, 0, 0 * 3600, false, "WET"); -} - -TEST(TimeZoneEdgeCase, FixedOffsets) { - const time_zone gmtm5 = LoadZone("Etc/GMT+5"); // -0500 - auto tp = convert(civil_second(1970, 1, 1, 0, 0, 0), gmtm5); - ExpectTime(tp, gmtm5, 1970, 1, 1, 0, 0, 0, -5 * 3600, false, "-05"); - EXPECT_EQ(chrono::system_clock::from_time_t(5 * 3600), tp); - - const time_zone gmtp5 = LoadZone("Etc/GMT-5"); // +0500 - tp = convert(civil_second(1970, 1, 1, 0, 0, 0), gmtp5); - ExpectTime(tp, gmtp5, 1970, 1, 1, 0, 0, 0, 5 * 3600, false, "+05"); - EXPECT_EQ(chrono::system_clock::from_time_t(-5 * 3600), tp); -} - -TEST(TimeZoneEdgeCase, NegativeYear) { - // Tests transition from year 0 (aka 1BCE) to year -1. - const time_zone tz = utc_time_zone(); - auto tp = convert(civil_second(0, 1, 1, 0, 0, 0), tz); - ExpectTime(tp, tz, 0, 1, 1, 0, 0, 0, 0 * 3600, false, "UTC"); - EXPECT_EQ(weekday::saturday, get_weekday(convert(tp, tz))); - tp -= absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, -1, 12, 31, 23, 59, 59, 0 * 3600, false, "UTC"); - EXPECT_EQ(weekday::friday, get_weekday(convert(tp, tz))); -} - -TEST(TimeZoneEdgeCase, UTC32bitLimit) { - const time_zone tz = utc_time_zone(); - - // Limits of signed 32-bit time_t - // - // 2147483647 == Tue, 19 Jan 2038 03:14:07 +0000 (UTC) - // 2147483648 == Tue, 19 Jan 2038 03:14:08 +0000 (UTC) - auto tp = convert(civil_second(2038, 1, 19, 3, 14, 7), tz); - ExpectTime(tp, tz, 2038, 1, 19, 3, 14, 7, 0 * 3600, false, "UTC"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2038, 1, 19, 3, 14, 8, 0 * 3600, false, "UTC"); -} - -TEST(TimeZoneEdgeCase, UTC5DigitYear) { - const time_zone tz = utc_time_zone(); - - // Rollover to 5-digit year - // - // 253402300799 == Fri, 31 Dec 9999 23:59:59 +0000 (UTC) - // 253402300800 == Sat, 1 Jan 1000 00:00:00 +0000 (UTC) - auto tp = convert(civil_second(9999, 12, 31, 23, 59, 59), tz); - ExpectTime(tp, tz, 9999, 12, 31, 23, 59, 59, 0 * 3600, false, "UTC"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 10000, 1, 1, 0, 0, 0, 0 * 3600, false, "UTC"); -} - -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl |