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Diffstat (limited to 'third_party/abseil_cpp/absl/time/time_test.cc')
| -rw-r--r-- | third_party/abseil_cpp/absl/time/time_test.cc | 1280 |
1 files changed, 0 insertions, 1280 deletions
diff --git a/third_party/abseil_cpp/absl/time/time_test.cc b/third_party/abseil_cpp/absl/time/time_test.cc deleted file mode 100644 index cde9423feb1a..000000000000 --- a/third_party/abseil_cpp/absl/time/time_test.cc +++ /dev/null @@ -1,1280 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// 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 "absl/time/time.h" - -#if defined(_MSC_VER) -#include <winsock2.h> // for timeval -#endif - -#include <chrono> // NOLINT(build/c++11) -#include <cstring> -#include <ctime> -#include <iomanip> -#include <limits> -#include <string> - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/numeric/int128.h" -#include "absl/time/clock.h" -#include "absl/time/internal/test_util.h" - -namespace { - -#if defined(GTEST_USES_SIMPLE_RE) && GTEST_USES_SIMPLE_RE -const char kZoneAbbrRE[] = ".*"; // just punt -#else -const char kZoneAbbrRE[] = "[A-Za-z]{3,4}|[-+][0-9]{2}([0-9]{2})?"; -#endif - -// This helper is a macro so that failed expectations show up with the -// correct line numbers. -#define EXPECT_CIVIL_INFO(ci, y, m, d, h, min, s, off, isdst) \ - do { \ - EXPECT_EQ(y, ci.cs.year()); \ - EXPECT_EQ(m, ci.cs.month()); \ - EXPECT_EQ(d, ci.cs.day()); \ - EXPECT_EQ(h, ci.cs.hour()); \ - EXPECT_EQ(min, ci.cs.minute()); \ - EXPECT_EQ(s, ci.cs.second()); \ - EXPECT_EQ(off, ci.offset); \ - EXPECT_EQ(isdst, ci.is_dst); \ - EXPECT_THAT(ci.zone_abbr, testing::MatchesRegex(kZoneAbbrRE)); \ - } while (0) - -// A gMock matcher to match timespec values. Use this matcher like: -// timespec ts1, ts2; -// EXPECT_THAT(ts1, TimespecMatcher(ts2)); -MATCHER_P(TimespecMatcher, ts, "") { - if (ts.tv_sec == arg.tv_sec && ts.tv_nsec == arg.tv_nsec) return true; - *result_listener << "expected: {" << ts.tv_sec << ", " << ts.tv_nsec << "} "; - *result_listener << "actual: {" << arg.tv_sec << ", " << arg.tv_nsec << "}"; - return false; -} - -// A gMock matcher to match timeval values. Use this matcher like: -// timeval tv1, tv2; -// EXPECT_THAT(tv1, TimevalMatcher(tv2)); -MATCHER_P(TimevalMatcher, tv, "") { - if (tv.tv_sec == arg.tv_sec && tv.tv_usec == arg.tv_usec) return true; - *result_listener << "expected: {" << tv.tv_sec << ", " << tv.tv_usec << "} "; - *result_listener << "actual: {" << arg.tv_sec << ", " << arg.tv_usec << "}"; - return false; -} - -TEST(Time, ConstExpr) { - constexpr absl::Time t0 = absl::UnixEpoch(); - static_assert(t0 == absl::Time(), "UnixEpoch"); - constexpr absl::Time t1 = absl::InfiniteFuture(); - static_assert(t1 != absl::Time(), "InfiniteFuture"); - constexpr absl::Time t2 = absl::InfinitePast(); - static_assert(t2 != absl::Time(), "InfinitePast"); - constexpr absl::Time t3 = absl::FromUnixNanos(0); - static_assert(t3 == absl::Time(), "FromUnixNanos"); - constexpr absl::Time t4 = absl::FromUnixMicros(0); - static_assert(t4 == absl::Time(), "FromUnixMicros"); - constexpr absl::Time t5 = absl::FromUnixMillis(0); - static_assert(t5 == absl::Time(), "FromUnixMillis"); - constexpr absl::Time t6 = absl::FromUnixSeconds(0); - static_assert(t6 == absl::Time(), "FromUnixSeconds"); - constexpr absl::Time t7 = absl::FromTimeT(0); - static_assert(t7 == absl::Time(), "FromTimeT"); -} - -TEST(Time, ValueSemantics) { - absl::Time a; // Default construction - absl::Time b = a; // Copy construction - EXPECT_EQ(a, b); - absl::Time c(a); // Copy construction (again) - EXPECT_EQ(a, b); - EXPECT_EQ(a, c); - EXPECT_EQ(b, c); - b = c; // Assignment - EXPECT_EQ(a, b); - EXPECT_EQ(a, c); - EXPECT_EQ(b, c); -} - -TEST(Time, UnixEpoch) { - const auto ci = absl::UTCTimeZone().At(absl::UnixEpoch()); - EXPECT_EQ(absl::CivilSecond(1970, 1, 1, 0, 0, 0), ci.cs); - EXPECT_EQ(absl::ZeroDuration(), ci.subsecond); - EXPECT_EQ(absl::Weekday::thursday, absl::GetWeekday(ci.cs)); -} - -TEST(Time, Breakdown) { - absl::TimeZone tz = absl::time_internal::LoadTimeZone("America/New_York"); - absl::Time t = absl::UnixEpoch(); - - // The Unix epoch as seen in NYC. - auto ci = tz.At(t); - EXPECT_CIVIL_INFO(ci, 1969, 12, 31, 19, 0, 0, -18000, false); - EXPECT_EQ(absl::ZeroDuration(), ci.subsecond); - EXPECT_EQ(absl::Weekday::wednesday, absl::GetWeekday(ci.cs)); - - // Just before the epoch. - t -= absl::Nanoseconds(1); - ci = tz.At(t); - EXPECT_CIVIL_INFO(ci, 1969, 12, 31, 18, 59, 59, -18000, false); - EXPECT_EQ(absl::Nanoseconds(999999999), ci.subsecond); - EXPECT_EQ(absl::Weekday::wednesday, absl::GetWeekday(ci.cs)); - - // Some time later. - t += absl::Hours(24) * 2735; - t += absl::Hours(18) + absl::Minutes(30) + absl::Seconds(15) + - absl::Nanoseconds(9); - ci = tz.At(t); - EXPECT_CIVIL_INFO(ci, 1977, 6, 28, 14, 30, 15, -14400, true); - EXPECT_EQ(8, ci.subsecond / absl::Nanoseconds(1)); - EXPECT_EQ(absl::Weekday::tuesday, absl::GetWeekday(ci.cs)); -} - -TEST(Time, AdditiveOperators) { - const absl::Duration d = absl::Nanoseconds(1); - const absl::Time t0; - const absl::Time t1 = t0 + d; - - EXPECT_EQ(d, t1 - t0); - EXPECT_EQ(-d, t0 - t1); - EXPECT_EQ(t0, t1 - d); - - absl::Time t(t0); - EXPECT_EQ(t0, t); - t += d; - EXPECT_EQ(t0 + d, t); - EXPECT_EQ(d, t - t0); - t -= d; - EXPECT_EQ(t0, t); - - // Tests overflow between subseconds and seconds. - t = absl::UnixEpoch(); - t += absl::Milliseconds(500); - EXPECT_EQ(absl::UnixEpoch() + absl::Milliseconds(500), t); - t += absl::Milliseconds(600); - EXPECT_EQ(absl::UnixEpoch() + absl::Milliseconds(1100), t); - t -= absl::Milliseconds(600); - EXPECT_EQ(absl::UnixEpoch() + absl::Milliseconds(500), t); - t -= absl::Milliseconds(500); - EXPECT_EQ(absl::UnixEpoch(), t); -} - -TEST(Time, RelationalOperators) { - constexpr absl::Time t1 = absl::FromUnixNanos(0); - constexpr absl::Time t2 = absl::FromUnixNanos(1); - constexpr absl::Time t3 = absl::FromUnixNanos(2); - - static_assert(absl::Time() == t1, ""); - static_assert(t1 == t1, ""); - static_assert(t2 == t2, ""); - static_assert(t3 == t3, ""); - - static_assert(t1 < t2, ""); - static_assert(t2 < t3, ""); - static_assert(t1 < t3, ""); - - static_assert(t1 <= t1, ""); - static_assert(t1 <= t2, ""); - static_assert(t2 <= t2, ""); - static_assert(t2 <= t3, ""); - static_assert(t3 <= t3, ""); - static_assert(t1 <= t3, ""); - - static_assert(t2 > t1, ""); - static_assert(t3 > t2, ""); - static_assert(t3 > t1, ""); - - static_assert(t2 >= t2, ""); - static_assert(t2 >= t1, ""); - static_assert(t3 >= t3, ""); - static_assert(t3 >= t2, ""); - static_assert(t1 >= t1, ""); - static_assert(t3 >= t1, ""); -} - -TEST(Time, Infinity) { - constexpr absl::Time ifuture = absl::InfiniteFuture(); - constexpr absl::Time ipast = absl::InfinitePast(); - - static_assert(ifuture == ifuture, ""); - static_assert(ipast == ipast, ""); - static_assert(ipast < ifuture, ""); - static_assert(ifuture > ipast, ""); - - // Arithmetic saturates - EXPECT_EQ(ifuture, ifuture + absl::Seconds(1)); - EXPECT_EQ(ifuture, ifuture - absl::Seconds(1)); - EXPECT_EQ(ipast, ipast + absl::Seconds(1)); - EXPECT_EQ(ipast, ipast - absl::Seconds(1)); - - EXPECT_EQ(absl::InfiniteDuration(), ifuture - ifuture); - EXPECT_EQ(absl::InfiniteDuration(), ifuture - ipast); - EXPECT_EQ(-absl::InfiniteDuration(), ipast - ifuture); - EXPECT_EQ(-absl::InfiniteDuration(), ipast - ipast); - - constexpr absl::Time t = absl::UnixEpoch(); // Any finite time. - static_assert(t < ifuture, ""); - static_assert(t > ipast, ""); - - EXPECT_EQ(ifuture, t + absl::InfiniteDuration()); - EXPECT_EQ(ipast, t - absl::InfiniteDuration()); -} - -TEST(Time, FloorConversion) { -#define TEST_FLOOR_CONVERSION(TO, FROM) \ - EXPECT_EQ(1, TO(FROM(1001))); \ - EXPECT_EQ(1, TO(FROM(1000))); \ - EXPECT_EQ(0, TO(FROM(999))); \ - EXPECT_EQ(0, TO(FROM(1))); \ - EXPECT_EQ(0, TO(FROM(0))); \ - EXPECT_EQ(-1, TO(FROM(-1))); \ - EXPECT_EQ(-1, TO(FROM(-999))); \ - EXPECT_EQ(-1, TO(FROM(-1000))); \ - EXPECT_EQ(-2, TO(FROM(-1001))); - - TEST_FLOOR_CONVERSION(absl::ToUnixMicros, absl::FromUnixNanos); - TEST_FLOOR_CONVERSION(absl::ToUnixMillis, absl::FromUnixMicros); - TEST_FLOOR_CONVERSION(absl::ToUnixSeconds, absl::FromUnixMillis); - TEST_FLOOR_CONVERSION(absl::ToTimeT, absl::FromUnixMillis); - -#undef TEST_FLOOR_CONVERSION - - // Tests ToUnixNanos. - EXPECT_EQ(1, absl::ToUnixNanos(absl::UnixEpoch() + absl::Nanoseconds(3) / 2)); - EXPECT_EQ(1, absl::ToUnixNanos(absl::UnixEpoch() + absl::Nanoseconds(1))); - EXPECT_EQ(0, absl::ToUnixNanos(absl::UnixEpoch() + absl::Nanoseconds(1) / 2)); - EXPECT_EQ(0, absl::ToUnixNanos(absl::UnixEpoch() + absl::Nanoseconds(0))); - EXPECT_EQ(-1, - absl::ToUnixNanos(absl::UnixEpoch() - absl::Nanoseconds(1) / 2)); - EXPECT_EQ(-1, absl::ToUnixNanos(absl::UnixEpoch() - absl::Nanoseconds(1))); - EXPECT_EQ(-2, - absl::ToUnixNanos(absl::UnixEpoch() - absl::Nanoseconds(3) / 2)); - - // Tests ToUniversal, which uses a different epoch than the tests above. - EXPECT_EQ(1, - absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(101))); - EXPECT_EQ(1, - absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(100))); - EXPECT_EQ(0, - absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(99))); - EXPECT_EQ(0, - absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(1))); - EXPECT_EQ(0, - absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(0))); - EXPECT_EQ(-1, - absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(-1))); - EXPECT_EQ(-1, - absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(-99))); - EXPECT_EQ( - -1, absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(-100))); - EXPECT_EQ( - -2, absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(-101))); - - // Tests ToTimespec()/TimeFromTimespec() - const struct { - absl::Time t; - timespec ts; - } to_ts[] = { - {absl::FromUnixSeconds(1) + absl::Nanoseconds(1), {1, 1}}, - {absl::FromUnixSeconds(1) + absl::Nanoseconds(1) / 2, {1, 0}}, - {absl::FromUnixSeconds(1) + absl::Nanoseconds(0), {1, 0}}, - {absl::FromUnixSeconds(0) + absl::Nanoseconds(0), {0, 0}}, - {absl::FromUnixSeconds(0) - absl::Nanoseconds(1) / 2, {-1, 999999999}}, - {absl::FromUnixSeconds(0) - absl::Nanoseconds(1), {-1, 999999999}}, - {absl::FromUnixSeconds(-1) + absl::Nanoseconds(1), {-1, 1}}, - {absl::FromUnixSeconds(-1) + absl::Nanoseconds(1) / 2, {-1, 0}}, - {absl::FromUnixSeconds(-1) + absl::Nanoseconds(0), {-1, 0}}, - {absl::FromUnixSeconds(-1) - absl::Nanoseconds(1) / 2, {-2, 999999999}}, - }; - for (const auto& test : to_ts) { - EXPECT_THAT(absl::ToTimespec(test.t), TimespecMatcher(test.ts)); - } - const struct { - timespec ts; - absl::Time t; - } from_ts[] = { - {{1, 1}, absl::FromUnixSeconds(1) + absl::Nanoseconds(1)}, - {{1, 0}, absl::FromUnixSeconds(1) + absl::Nanoseconds(0)}, - {{0, 0}, absl::FromUnixSeconds(0) + absl::Nanoseconds(0)}, - {{0, -1}, absl::FromUnixSeconds(0) - absl::Nanoseconds(1)}, - {{-1, 999999999}, absl::FromUnixSeconds(0) - absl::Nanoseconds(1)}, - {{-1, 1}, absl::FromUnixSeconds(-1) + absl::Nanoseconds(1)}, - {{-1, 0}, absl::FromUnixSeconds(-1) + absl::Nanoseconds(0)}, - {{-1, -1}, absl::FromUnixSeconds(-1) - absl::Nanoseconds(1)}, - {{-2, 999999999}, absl::FromUnixSeconds(-1) - absl::Nanoseconds(1)}, - }; - for (const auto& test : from_ts) { - EXPECT_EQ(test.t, absl::TimeFromTimespec(test.ts)); - } - - // Tests ToTimeval()/TimeFromTimeval() (same as timespec above) - const struct { - absl::Time t; - timeval tv; - } to_tv[] = { - {absl::FromUnixSeconds(1) + absl::Microseconds(1), {1, 1}}, - {absl::FromUnixSeconds(1) + absl::Microseconds(1) / 2, {1, 0}}, - {absl::FromUnixSeconds(1) + absl::Microseconds(0), {1, 0}}, - {absl::FromUnixSeconds(0) + absl::Microseconds(0), {0, 0}}, - {absl::FromUnixSeconds(0) - absl::Microseconds(1) / 2, {-1, 999999}}, - {absl::FromUnixSeconds(0) - absl::Microseconds(1), {-1, 999999}}, - {absl::FromUnixSeconds(-1) + absl::Microseconds(1), {-1, 1}}, - {absl::FromUnixSeconds(-1) + absl::Microseconds(1) / 2, {-1, 0}}, - {absl::FromUnixSeconds(-1) + absl::Microseconds(0), {-1, 0}}, - {absl::FromUnixSeconds(-1) - absl::Microseconds(1) / 2, {-2, 999999}}, - }; - for (const auto& test : to_tv) { - EXPECT_THAT(ToTimeval(test.t), TimevalMatcher(test.tv)); - } - const struct { - timeval tv; - absl::Time t; - } from_tv[] = { - {{1, 1}, absl::FromUnixSeconds(1) + absl::Microseconds(1)}, - {{1, 0}, absl::FromUnixSeconds(1) + absl::Microseconds(0)}, - {{0, 0}, absl::FromUnixSeconds(0) + absl::Microseconds(0)}, - {{0, -1}, absl::FromUnixSeconds(0) - absl::Microseconds(1)}, - {{-1, 999999}, absl::FromUnixSeconds(0) - absl::Microseconds(1)}, - {{-1, 1}, absl::FromUnixSeconds(-1) + absl::Microseconds(1)}, - {{-1, 0}, absl::FromUnixSeconds(-1) + absl::Microseconds(0)}, - {{-1, -1}, absl::FromUnixSeconds(-1) - absl::Microseconds(1)}, - {{-2, 999999}, absl::FromUnixSeconds(-1) - absl::Microseconds(1)}, - }; - for (const auto& test : from_tv) { - EXPECT_EQ(test.t, absl::TimeFromTimeval(test.tv)); - } - - // Tests flooring near negative infinity. - const int64_t min_plus_1 = std::numeric_limits<int64_t>::min() + 1; - EXPECT_EQ(min_plus_1, absl::ToUnixSeconds(absl::FromUnixSeconds(min_plus_1))); - EXPECT_EQ(std::numeric_limits<int64_t>::min(), - absl::ToUnixSeconds(absl::FromUnixSeconds(min_plus_1) - - absl::Nanoseconds(1) / 2)); - - // Tests flooring near positive infinity. - EXPECT_EQ(std::numeric_limits<int64_t>::max(), - absl::ToUnixSeconds( - absl::FromUnixSeconds(std::numeric_limits<int64_t>::max()) + - absl::Nanoseconds(1) / 2)); - EXPECT_EQ(std::numeric_limits<int64_t>::max(), - absl::ToUnixSeconds( - absl::FromUnixSeconds(std::numeric_limits<int64_t>::max()))); - EXPECT_EQ(std::numeric_limits<int64_t>::max() - 1, - absl::ToUnixSeconds( - absl::FromUnixSeconds(std::numeric_limits<int64_t>::max()) - - absl::Nanoseconds(1) / 2)); -} - -TEST(Time, RoundtripConversion) { -#define TEST_CONVERSION_ROUND_TRIP(SOURCE, FROM, TO, MATCHER) \ - EXPECT_THAT(TO(FROM(SOURCE)), MATCHER(SOURCE)) - - // FromUnixNanos() and ToUnixNanos() - int64_t now_ns = absl::GetCurrentTimeNanos(); - TEST_CONVERSION_ROUND_TRIP(-1, absl::FromUnixNanos, absl::ToUnixNanos, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(0, absl::FromUnixNanos, absl::ToUnixNanos, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(1, absl::FromUnixNanos, absl::ToUnixNanos, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(now_ns, absl::FromUnixNanos, absl::ToUnixNanos, - testing::Eq) - << now_ns; - - // FromUnixMicros() and ToUnixMicros() - int64_t now_us = absl::GetCurrentTimeNanos() / 1000; - TEST_CONVERSION_ROUND_TRIP(-1, absl::FromUnixMicros, absl::ToUnixMicros, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(0, absl::FromUnixMicros, absl::ToUnixMicros, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(1, absl::FromUnixMicros, absl::ToUnixMicros, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(now_us, absl::FromUnixMicros, absl::ToUnixMicros, - testing::Eq) - << now_us; - - // FromUnixMillis() and ToUnixMillis() - int64_t now_ms = absl::GetCurrentTimeNanos() / 1000000; - TEST_CONVERSION_ROUND_TRIP(-1, absl::FromUnixMillis, absl::ToUnixMillis, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(0, absl::FromUnixMillis, absl::ToUnixMillis, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(1, absl::FromUnixMillis, absl::ToUnixMillis, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(now_ms, absl::FromUnixMillis, absl::ToUnixMillis, - testing::Eq) - << now_ms; - - // FromUnixSeconds() and ToUnixSeconds() - int64_t now_s = std::time(nullptr); - TEST_CONVERSION_ROUND_TRIP(-1, absl::FromUnixSeconds, absl::ToUnixSeconds, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(0, absl::FromUnixSeconds, absl::ToUnixSeconds, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(1, absl::FromUnixSeconds, absl::ToUnixSeconds, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(now_s, absl::FromUnixSeconds, absl::ToUnixSeconds, - testing::Eq) - << now_s; - - // FromTimeT() and ToTimeT() - time_t now_time_t = std::time(nullptr); - TEST_CONVERSION_ROUND_TRIP(-1, absl::FromTimeT, absl::ToTimeT, testing::Eq); - TEST_CONVERSION_ROUND_TRIP(0, absl::FromTimeT, absl::ToTimeT, testing::Eq); - TEST_CONVERSION_ROUND_TRIP(1, absl::FromTimeT, absl::ToTimeT, testing::Eq); - TEST_CONVERSION_ROUND_TRIP(now_time_t, absl::FromTimeT, absl::ToTimeT, - testing::Eq) - << now_time_t; - - // TimeFromTimeval() and ToTimeval() - timeval tv; - tv.tv_sec = -1; - tv.tv_usec = 0; - TEST_CONVERSION_ROUND_TRIP(tv, absl::TimeFromTimeval, absl::ToTimeval, - TimevalMatcher); - tv.tv_sec = -1; - tv.tv_usec = 999999; - TEST_CONVERSION_ROUND_TRIP(tv, absl::TimeFromTimeval, absl::ToTimeval, - TimevalMatcher); - tv.tv_sec = 0; - tv.tv_usec = 0; - TEST_CONVERSION_ROUND_TRIP(tv, absl::TimeFromTimeval, absl::ToTimeval, - TimevalMatcher); - tv.tv_sec = 0; - tv.tv_usec = 1; - TEST_CONVERSION_ROUND_TRIP(tv, absl::TimeFromTimeval, absl::ToTimeval, - TimevalMatcher); - tv.tv_sec = 1; - tv.tv_usec = 0; - TEST_CONVERSION_ROUND_TRIP(tv, absl::TimeFromTimeval, absl::ToTimeval, - TimevalMatcher); - - // TimeFromTimespec() and ToTimespec() - timespec ts; - ts.tv_sec = -1; - ts.tv_nsec = 0; - TEST_CONVERSION_ROUND_TRIP(ts, absl::TimeFromTimespec, absl::ToTimespec, - TimespecMatcher); - ts.tv_sec = -1; - ts.tv_nsec = 999999999; - TEST_CONVERSION_ROUND_TRIP(ts, absl::TimeFromTimespec, absl::ToTimespec, - TimespecMatcher); - ts.tv_sec = 0; - ts.tv_nsec = 0; - TEST_CONVERSION_ROUND_TRIP(ts, absl::TimeFromTimespec, absl::ToTimespec, - TimespecMatcher); - ts.tv_sec = 0; - ts.tv_nsec = 1; - TEST_CONVERSION_ROUND_TRIP(ts, absl::TimeFromTimespec, absl::ToTimespec, - TimespecMatcher); - ts.tv_sec = 1; - ts.tv_nsec = 0; - TEST_CONVERSION_ROUND_TRIP(ts, absl::TimeFromTimespec, absl::ToTimespec, - TimespecMatcher); - - // FromUDate() and ToUDate() - double now_ud = absl::GetCurrentTimeNanos() / 1000000; - TEST_CONVERSION_ROUND_TRIP(-1.5, absl::FromUDate, absl::ToUDate, - testing::DoubleEq); - TEST_CONVERSION_ROUND_TRIP(-1, absl::FromUDate, absl::ToUDate, - testing::DoubleEq); - TEST_CONVERSION_ROUND_TRIP(-0.5, absl::FromUDate, absl::ToUDate, - testing::DoubleEq); - TEST_CONVERSION_ROUND_TRIP(0, absl::FromUDate, absl::ToUDate, - testing::DoubleEq); - TEST_CONVERSION_ROUND_TRIP(0.5, absl::FromUDate, absl::ToUDate, - testing::DoubleEq); - TEST_CONVERSION_ROUND_TRIP(1, absl::FromUDate, absl::ToUDate, - testing::DoubleEq); - TEST_CONVERSION_ROUND_TRIP(1.5, absl::FromUDate, absl::ToUDate, - testing::DoubleEq); - TEST_CONVERSION_ROUND_TRIP(now_ud, absl::FromUDate, absl::ToUDate, - testing::DoubleEq) - << std::fixed << std::setprecision(17) << now_ud; - - // FromUniversal() and ToUniversal() - int64_t now_uni = ((719162LL * (24 * 60 * 60)) * (1000 * 1000 * 10)) + - (absl::GetCurrentTimeNanos() / 100); - TEST_CONVERSION_ROUND_TRIP(-1, absl::FromUniversal, absl::ToUniversal, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(0, absl::FromUniversal, absl::ToUniversal, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(1, absl::FromUniversal, absl::ToUniversal, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(now_uni, absl::FromUniversal, absl::ToUniversal, - testing::Eq) - << now_uni; - -#undef TEST_CONVERSION_ROUND_TRIP -} - -template <typename Duration> -std::chrono::system_clock::time_point MakeChronoUnixTime(const Duration& d) { - return std::chrono::system_clock::from_time_t(0) + d; -} - -TEST(Time, FromChrono) { - EXPECT_EQ(absl::FromTimeT(-1), - absl::FromChrono(std::chrono::system_clock::from_time_t(-1))); - EXPECT_EQ(absl::FromTimeT(0), - absl::FromChrono(std::chrono::system_clock::from_time_t(0))); - EXPECT_EQ(absl::FromTimeT(1), - absl::FromChrono(std::chrono::system_clock::from_time_t(1))); - - EXPECT_EQ( - absl::FromUnixMillis(-1), - absl::FromChrono(MakeChronoUnixTime(std::chrono::milliseconds(-1)))); - EXPECT_EQ(absl::FromUnixMillis(0), - absl::FromChrono(MakeChronoUnixTime(std::chrono::milliseconds(0)))); - EXPECT_EQ(absl::FromUnixMillis(1), - absl::FromChrono(MakeChronoUnixTime(std::chrono::milliseconds(1)))); - - // Chrono doesn't define exactly its range and precision (neither does - // absl::Time), so let's simply test +/- ~100 years to make sure things work. - const auto century_sec = 60 * 60 * 24 * 365 * int64_t{100}; - const auto century = std::chrono::seconds(century_sec); - const auto chrono_future = MakeChronoUnixTime(century); - const auto chrono_past = MakeChronoUnixTime(-century); - EXPECT_EQ(absl::FromUnixSeconds(century_sec), - absl::FromChrono(chrono_future)); - EXPECT_EQ(absl::FromUnixSeconds(-century_sec), absl::FromChrono(chrono_past)); - - // Roundtrip them both back to chrono. - EXPECT_EQ(chrono_future, - absl::ToChronoTime(absl::FromUnixSeconds(century_sec))); - EXPECT_EQ(chrono_past, - absl::ToChronoTime(absl::FromUnixSeconds(-century_sec))); -} - -TEST(Time, ToChronoTime) { - EXPECT_EQ(std::chrono::system_clock::from_time_t(-1), - absl::ToChronoTime(absl::FromTimeT(-1))); - EXPECT_EQ(std::chrono::system_clock::from_time_t(0), - absl::ToChronoTime(absl::FromTimeT(0))); - EXPECT_EQ(std::chrono::system_clock::from_time_t(1), - absl::ToChronoTime(absl::FromTimeT(1))); - - EXPECT_EQ(MakeChronoUnixTime(std::chrono::milliseconds(-1)), - absl::ToChronoTime(absl::FromUnixMillis(-1))); - EXPECT_EQ(MakeChronoUnixTime(std::chrono::milliseconds(0)), - absl::ToChronoTime(absl::FromUnixMillis(0))); - EXPECT_EQ(MakeChronoUnixTime(std::chrono::milliseconds(1)), - absl::ToChronoTime(absl::FromUnixMillis(1))); - - // Time before the Unix epoch should floor, not trunc. - const auto tick = absl::Nanoseconds(1) / 4; - EXPECT_EQ(std::chrono::system_clock::from_time_t(0) - - std::chrono::system_clock::duration(1), - absl::ToChronoTime(absl::UnixEpoch() - tick)); -} - -// Check that absl::int128 works as a std::chrono::duration representation. -TEST(Time, Chrono128) { - // Define a std::chrono::time_point type whose time[sic]_since_epoch() is - // a signed 128-bit count of attoseconds. This has a range and resolution - // (currently) beyond those of absl::Time, and undoubtedly also beyond those - // of std::chrono::system_clock::time_point. - // - // Note: The to/from-chrono support should probably be updated to handle - // such wide representations. - using Timestamp = - std::chrono::time_point<std::chrono::system_clock, - std::chrono::duration<absl::int128, std::atto>>; - - // Expect that we can round-trip the std::chrono::system_clock::time_point - // extremes through both absl::Time and Timestamp, and that Timestamp can - // handle the (current) absl::Time extremes. - // - // Note: We should use std::chrono::floor() instead of time_point_cast(), - // but floor() is only available since c++17. - for (const auto tp : {std::chrono::system_clock::time_point::min(), - std::chrono::system_clock::time_point::max()}) { - EXPECT_EQ(tp, absl::ToChronoTime(absl::FromChrono(tp))); - EXPECT_EQ(tp, std::chrono::time_point_cast< - std::chrono::system_clock::time_point::duration>( - std::chrono::time_point_cast<Timestamp::duration>(tp))); - } - Timestamp::duration::rep v = std::numeric_limits<int64_t>::min(); - v *= Timestamp::duration::period::den; - auto ts = Timestamp(Timestamp::duration(v)); - ts += std::chrono::duration<int64_t, std::atto>(0); - EXPECT_EQ(std::numeric_limits<int64_t>::min(), - ts.time_since_epoch().count() / Timestamp::duration::period::den); - EXPECT_EQ(0, - ts.time_since_epoch().count() % Timestamp::duration::period::den); - v = std::numeric_limits<int64_t>::max(); - v *= Timestamp::duration::period::den; - ts = Timestamp(Timestamp::duration(v)); - ts += std::chrono::duration<int64_t, std::atto>(999999999750000000); - EXPECT_EQ(std::numeric_limits<int64_t>::max(), - ts.time_since_epoch().count() / Timestamp::duration::period::den); - EXPECT_EQ(999999999750000000, - ts.time_since_epoch().count() % Timestamp::duration::period::den); -} - -TEST(Time, TimeZoneAt) { - const absl::TimeZone nyc = - absl::time_internal::LoadTimeZone("America/New_York"); - const std::string fmt = "%a, %e %b %Y %H:%M:%S %z (%Z)"; - - // A non-transition where the civil time is unique. - absl::CivilSecond nov01(2013, 11, 1, 8, 30, 0); - const auto nov01_ci = nyc.At(nov01); - EXPECT_EQ(absl::TimeZone::TimeInfo::UNIQUE, nov01_ci.kind); - EXPECT_EQ("Fri, 1 Nov 2013 08:30:00 -0400 (EDT)", - absl::FormatTime(fmt, nov01_ci.pre, nyc)); - EXPECT_EQ(nov01_ci.pre, nov01_ci.trans); - EXPECT_EQ(nov01_ci.pre, nov01_ci.post); - EXPECT_EQ(nov01_ci.pre, absl::FromCivil(nov01, nyc)); - - // A Spring DST transition, when there is a gap in civil time - // and we prefer the later of the possible interpretations of a - // non-existent time. - absl::CivilSecond mar13(2011, 3, 13, 2, 15, 0); - const auto mar_ci = nyc.At(mar13); - EXPECT_EQ(absl::TimeZone::TimeInfo::SKIPPED, mar_ci.kind); - EXPECT_EQ("Sun, 13 Mar 2011 03:15:00 -0400 (EDT)", - absl::FormatTime(fmt, mar_ci.pre, nyc)); - EXPECT_EQ("Sun, 13 Mar 2011 03:00:00 -0400 (EDT)", - absl::FormatTime(fmt, mar_ci.trans, nyc)); - EXPECT_EQ("Sun, 13 Mar 2011 01:15:00 -0500 (EST)", - absl::FormatTime(fmt, mar_ci.post, nyc)); - EXPECT_EQ(mar_ci.trans, absl::FromCivil(mar13, nyc)); - - // A Fall DST transition, when civil times are repeated and - // we prefer the earlier of the possible interpretations of an - // ambiguous time. - absl::CivilSecond nov06(2011, 11, 6, 1, 15, 0); - const auto nov06_ci = nyc.At(nov06); - EXPECT_EQ(absl::TimeZone::TimeInfo::REPEATED, nov06_ci.kind); - EXPECT_EQ("Sun, 6 Nov 2011 01:15:00 -0400 (EDT)", - absl::FormatTime(fmt, nov06_ci.pre, nyc)); - EXPECT_EQ("Sun, 6 Nov 2011 01:00:00 -0500 (EST)", - absl::FormatTime(fmt, nov06_ci.trans, nyc)); - EXPECT_EQ("Sun, 6 Nov 2011 01:15:00 -0500 (EST)", - absl::FormatTime(fmt, nov06_ci.post, nyc)); - EXPECT_EQ(nov06_ci.pre, absl::FromCivil(nov06, nyc)); - - // Check that (time_t) -1 is handled correctly. - absl::CivilSecond minus1(1969, 12, 31, 18, 59, 59); - const auto minus1_cl = nyc.At(minus1); - EXPECT_EQ(absl::TimeZone::TimeInfo::UNIQUE, minus1_cl.kind); - EXPECT_EQ(-1, absl::ToTimeT(minus1_cl.pre)); - EXPECT_EQ("Wed, 31 Dec 1969 18:59:59 -0500 (EST)", - absl::FormatTime(fmt, minus1_cl.pre, nyc)); - EXPECT_EQ("Wed, 31 Dec 1969 23:59:59 +0000 (UTC)", - absl::FormatTime(fmt, minus1_cl.pre, absl::UTCTimeZone())); -} - -// FromCivil(CivilSecond(year, mon, day, hour, min, sec), UTCTimeZone()) -// has a specialized fastpath implementation, which we exercise here. -TEST(Time, FromCivilUTC) { - const absl::TimeZone utc = absl::UTCTimeZone(); - const std::string fmt = "%a, %e %b %Y %H:%M:%S %z (%Z)"; - const int kMax = std::numeric_limits<int>::max(); - const int kMin = std::numeric_limits<int>::min(); - absl::Time t; - - // 292091940881 is the last positive year to use the fastpath. - t = absl::FromCivil( - absl::CivilSecond(292091940881, kMax, kMax, kMax, kMax, kMax), utc); - EXPECT_EQ("Fri, 25 Nov 292277026596 12:21:07 +0000 (UTC)", - absl::FormatTime(fmt, t, utc)); - t = absl::FromCivil( - absl::CivilSecond(292091940882, kMax, kMax, kMax, kMax, kMax), utc); - EXPECT_EQ("infinite-future", absl::FormatTime(fmt, t, utc)); // no overflow - - // -292091936940 is the last negative year to use the fastpath. - t = absl::FromCivil( - absl::CivilSecond(-292091936940, kMin, kMin, kMin, kMin, kMin), utc); - EXPECT_EQ("Fri, 1 Nov -292277022657 10:37:52 +0000 (UTC)", - absl::FormatTime(fmt, t, utc)); - t = absl::FromCivil( - absl::CivilSecond(-292091936941, kMin, kMin, kMin, kMin, kMin), utc); - EXPECT_EQ("infinite-past", absl::FormatTime(fmt, t, utc)); // no underflow - - // Check that we're counting leap years correctly. - t = absl::FromCivil(absl::CivilSecond(1900, 2, 28, 23, 59, 59), utc); - EXPECT_EQ("Wed, 28 Feb 1900 23:59:59 +0000 (UTC)", - absl::FormatTime(fmt, t, utc)); - t = absl::FromCivil(absl::CivilSecond(1900, 3, 1, 0, 0, 0), utc); - EXPECT_EQ("Thu, 1 Mar 1900 00:00:00 +0000 (UTC)", - absl::FormatTime(fmt, t, utc)); - t = absl::FromCivil(absl::CivilSecond(2000, 2, 29, 23, 59, 59), utc); - EXPECT_EQ("Tue, 29 Feb 2000 23:59:59 +0000 (UTC)", - absl::FormatTime(fmt, t, utc)); - t = absl::FromCivil(absl::CivilSecond(2000, 3, 1, 0, 0, 0), utc); - EXPECT_EQ("Wed, 1 Mar 2000 00:00:00 +0000 (UTC)", - absl::FormatTime(fmt, t, utc)); -} - -TEST(Time, ToTM) { - const absl::TimeZone utc = absl::UTCTimeZone(); - - // Compares the results of ToTM() to gmtime_r() for lots of times over the - // course of a few days. - const absl::Time start = - absl::FromCivil(absl::CivilSecond(2014, 1, 2, 3, 4, 5), utc); - const absl::Time end = - absl::FromCivil(absl::CivilSecond(2014, 1, 5, 3, 4, 5), utc); - for (absl::Time t = start; t < end; t += absl::Seconds(30)) { - const struct tm tm_bt = ToTM(t, utc); - const time_t tt = absl::ToTimeT(t); - struct tm tm_lc; -#ifdef _WIN32 - gmtime_s(&tm_lc, &tt); -#else - gmtime_r(&tt, &tm_lc); -#endif - EXPECT_EQ(tm_lc.tm_year, tm_bt.tm_year); - EXPECT_EQ(tm_lc.tm_mon, tm_bt.tm_mon); - EXPECT_EQ(tm_lc.tm_mday, tm_bt.tm_mday); - EXPECT_EQ(tm_lc.tm_hour, tm_bt.tm_hour); - EXPECT_EQ(tm_lc.tm_min, tm_bt.tm_min); - EXPECT_EQ(tm_lc.tm_sec, tm_bt.tm_sec); - EXPECT_EQ(tm_lc.tm_wday, tm_bt.tm_wday); - EXPECT_EQ(tm_lc.tm_yday, tm_bt.tm_yday); - EXPECT_EQ(tm_lc.tm_isdst, tm_bt.tm_isdst); - - ASSERT_FALSE(HasFailure()); - } - - // Checks that the tm_isdst field is correct when in standard time. - const absl::TimeZone nyc = - absl::time_internal::LoadTimeZone("America/New_York"); - absl::Time t = absl::FromCivil(absl::CivilSecond(2014, 3, 1, 0, 0, 0), nyc); - struct tm tm = ToTM(t, nyc); - EXPECT_FALSE(tm.tm_isdst); - - // Checks that the tm_isdst field is correct when in daylight time. - t = absl::FromCivil(absl::CivilSecond(2014, 4, 1, 0, 0, 0), nyc); - tm = ToTM(t, nyc); - EXPECT_TRUE(tm.tm_isdst); - - // Checks overflow. - tm = ToTM(absl::InfiniteFuture(), nyc); - EXPECT_EQ(std::numeric_limits<int>::max() - 1900, tm.tm_year); - EXPECT_EQ(11, tm.tm_mon); - EXPECT_EQ(31, tm.tm_mday); - EXPECT_EQ(23, tm.tm_hour); - EXPECT_EQ(59, tm.tm_min); - EXPECT_EQ(59, tm.tm_sec); - EXPECT_EQ(4, tm.tm_wday); - EXPECT_EQ(364, tm.tm_yday); - EXPECT_FALSE(tm.tm_isdst); - - // Checks underflow. - tm = ToTM(absl::InfinitePast(), nyc); - EXPECT_EQ(std::numeric_limits<int>::min(), tm.tm_year); - EXPECT_EQ(0, tm.tm_mon); - EXPECT_EQ(1, tm.tm_mday); - EXPECT_EQ(0, tm.tm_hour); - EXPECT_EQ(0, tm.tm_min); - EXPECT_EQ(0, tm.tm_sec); - EXPECT_EQ(0, tm.tm_wday); - EXPECT_EQ(0, tm.tm_yday); - EXPECT_FALSE(tm.tm_isdst); -} - -TEST(Time, FromTM) { - const absl::TimeZone nyc = - absl::time_internal::LoadTimeZone("America/New_York"); - - // Verifies that tm_isdst doesn't affect anything when the time is unique. - struct tm tm; - std::memset(&tm, 0, sizeof(tm)); - tm.tm_year = 2014 - 1900; - tm.tm_mon = 6 - 1; - tm.tm_mday = 28; - tm.tm_hour = 1; - tm.tm_min = 2; - tm.tm_sec = 3; - tm.tm_isdst = -1; - absl::Time t = FromTM(tm, nyc); - EXPECT_EQ("2014-06-28T01:02:03-04:00", absl::FormatTime(t, nyc)); // DST - tm.tm_isdst = 0; - t = FromTM(tm, nyc); - EXPECT_EQ("2014-06-28T01:02:03-04:00", absl::FormatTime(t, nyc)); // DST - tm.tm_isdst = 1; - t = FromTM(tm, nyc); - EXPECT_EQ("2014-06-28T01:02:03-04:00", absl::FormatTime(t, nyc)); // DST - - // Adjusts tm to refer to an ambiguous time. - tm.tm_year = 2014 - 1900; - tm.tm_mon = 11 - 1; - tm.tm_mday = 2; - tm.tm_hour = 1; - tm.tm_min = 30; - tm.tm_sec = 42; - tm.tm_isdst = -1; - t = FromTM(tm, nyc); - EXPECT_EQ("2014-11-02T01:30:42-04:00", absl::FormatTime(t, nyc)); // DST - tm.tm_isdst = 0; - t = FromTM(tm, nyc); - EXPECT_EQ("2014-11-02T01:30:42-05:00", absl::FormatTime(t, nyc)); // STD - tm.tm_isdst = 1; - t = FromTM(tm, nyc); - EXPECT_EQ("2014-11-02T01:30:42-04:00", absl::FormatTime(t, nyc)); // DST - - // Adjusts tm to refer to a skipped time. - tm.tm_year = 2014 - 1900; - tm.tm_mon = 3 - 1; - tm.tm_mday = 9; - tm.tm_hour = 2; - tm.tm_min = 30; - tm.tm_sec = 42; - tm.tm_isdst = -1; - t = FromTM(tm, nyc); - EXPECT_EQ("2014-03-09T03:30:42-04:00", absl::FormatTime(t, nyc)); // DST - tm.tm_isdst = 0; - t = FromTM(tm, nyc); - EXPECT_EQ("2014-03-09T01:30:42-05:00", absl::FormatTime(t, nyc)); // STD - tm.tm_isdst = 1; - t = FromTM(tm, nyc); - EXPECT_EQ("2014-03-09T03:30:42-04:00", absl::FormatTime(t, nyc)); // DST - - // Adjusts tm to refer to a time with a year larger than 2147483647. - tm.tm_year = 2147483647 - 1900 + 1; - tm.tm_mon = 6 - 1; - tm.tm_mday = 28; - tm.tm_hour = 1; - tm.tm_min = 2; - tm.tm_sec = 3; - tm.tm_isdst = -1; - t = FromTM(tm, absl::UTCTimeZone()); - EXPECT_EQ("2147483648-06-28T01:02:03+00:00", - absl::FormatTime(t, absl::UTCTimeZone())); - - // Adjusts tm to refer to a time with a very large month. - tm.tm_year = 2019 - 1900; - tm.tm_mon = 2147483647; - tm.tm_mday = 28; - tm.tm_hour = 1; - tm.tm_min = 2; - tm.tm_sec = 3; - tm.tm_isdst = -1; - t = FromTM(tm, absl::UTCTimeZone()); - EXPECT_EQ("178958989-08-28T01:02:03+00:00", - absl::FormatTime(t, absl::UTCTimeZone())); -} - -TEST(Time, TMRoundTrip) { - const absl::TimeZone nyc = - absl::time_internal::LoadTimeZone("America/New_York"); - - // Test round-tripping across a skipped transition - absl::Time start = absl::FromCivil(absl::CivilHour(2014, 3, 9, 0), nyc); - absl::Time end = absl::FromCivil(absl::CivilHour(2014, 3, 9, 4), nyc); - for (absl::Time t = start; t < end; t += absl::Minutes(1)) { - struct tm tm = ToTM(t, nyc); - absl::Time rt = FromTM(tm, nyc); - EXPECT_EQ(rt, t); - } - - // Test round-tripping across an ambiguous transition - start = absl::FromCivil(absl::CivilHour(2014, 11, 2, 0), nyc); - end = absl::FromCivil(absl::CivilHour(2014, 11, 2, 4), nyc); - for (absl::Time t = start; t < end; t += absl::Minutes(1)) { - struct tm tm = ToTM(t, nyc); - absl::Time rt = FromTM(tm, nyc); - EXPECT_EQ(rt, t); - } - - // Test round-tripping of unique instants crossing a day boundary - start = absl::FromCivil(absl::CivilHour(2014, 6, 27, 22), nyc); - end = absl::FromCivil(absl::CivilHour(2014, 6, 28, 4), nyc); - for (absl::Time t = start; t < end; t += absl::Minutes(1)) { - struct tm tm = ToTM(t, nyc); - absl::Time rt = FromTM(tm, nyc); - EXPECT_EQ(rt, t); - } -} - -TEST(Time, Range) { - // The API's documented range is +/- 100 billion years. - const absl::Duration range = absl::Hours(24) * 365.2425 * 100000000000; - - // Arithmetic and comparison still works at +/-range around base values. - absl::Time bases[2] = {absl::UnixEpoch(), absl::Now()}; - for (const auto base : bases) { - absl::Time bottom = base - range; - EXPECT_GT(bottom, bottom - absl::Nanoseconds(1)); - EXPECT_LT(bottom, bottom + absl::Nanoseconds(1)); - absl::Time top = base + range; - EXPECT_GT(top, top - absl::Nanoseconds(1)); - EXPECT_LT(top, top + absl::Nanoseconds(1)); - absl::Duration full_range = 2 * range; - EXPECT_EQ(full_range, top - bottom); - EXPECT_EQ(-full_range, bottom - top); - } -} - -TEST(Time, Limits) { - // It is an implementation detail that Time().rep_ == ZeroDuration(), - // and that the resolution of a Duration is 1/4 of a nanosecond. - const absl::Time zero; - const absl::Time max = - zero + absl::Seconds(std::numeric_limits<int64_t>::max()) + - absl::Nanoseconds(999999999) + absl::Nanoseconds(3) / 4; - const absl::Time min = - zero + absl::Seconds(std::numeric_limits<int64_t>::min()); - - // Some simple max/min bounds checks. - EXPECT_LT(max, absl::InfiniteFuture()); - EXPECT_GT(min, absl::InfinitePast()); - EXPECT_LT(zero, max); - EXPECT_GT(zero, min); - EXPECT_GE(absl::UnixEpoch(), min); - EXPECT_LT(absl::UnixEpoch(), max); - - // Check sign of Time differences. - EXPECT_LT(absl::ZeroDuration(), max - zero); - EXPECT_LT(absl::ZeroDuration(), - zero - absl::Nanoseconds(1) / 4 - min); // avoid zero - min - - // Arithmetic works at max - 0.25ns and min + 0.25ns. - EXPECT_GT(max, max - absl::Nanoseconds(1) / 4); - EXPECT_LT(min, min + absl::Nanoseconds(1) / 4); -} - -TEST(Time, ConversionSaturation) { - const absl::TimeZone utc = absl::UTCTimeZone(); - absl::Time t; - - const auto max_time_t = std::numeric_limits<time_t>::max(); - const auto min_time_t = std::numeric_limits<time_t>::min(); - time_t tt = max_time_t - 1; - t = absl::FromTimeT(tt); - tt = absl::ToTimeT(t); - EXPECT_EQ(max_time_t - 1, tt); - t += absl::Seconds(1); - tt = absl::ToTimeT(t); - EXPECT_EQ(max_time_t, tt); - t += absl::Seconds(1); // no effect - tt = absl::ToTimeT(t); - EXPECT_EQ(max_time_t, tt); - - tt = min_time_t + 1; - t = absl::FromTimeT(tt); - tt = absl::ToTimeT(t); - EXPECT_EQ(min_time_t + 1, tt); - t -= absl::Seconds(1); - tt = absl::ToTimeT(t); - EXPECT_EQ(min_time_t, tt); - t -= absl::Seconds(1); // no effect - tt = absl::ToTimeT(t); - EXPECT_EQ(min_time_t, tt); - - const auto max_timeval_sec = - std::numeric_limits<decltype(timeval::tv_sec)>::max(); - const auto min_timeval_sec = - std::numeric_limits<decltype(timeval::tv_sec)>::min(); - timeval tv; - tv.tv_sec = max_timeval_sec; - tv.tv_usec = 999998; - t = absl::TimeFromTimeval(tv); - tv = ToTimeval(t); - EXPECT_EQ(max_timeval_sec, tv.tv_sec); - EXPECT_EQ(999998, tv.tv_usec); - t += absl::Microseconds(1); - tv = ToTimeval(t); - EXPECT_EQ(max_timeval_sec, tv.tv_sec); - EXPECT_EQ(999999, tv.tv_usec); - t += absl::Microseconds(1); // no effect - tv = ToTimeval(t); - EXPECT_EQ(max_timeval_sec, tv.tv_sec); - EXPECT_EQ(999999, tv.tv_usec); - - tv.tv_sec = min_timeval_sec; - tv.tv_usec = 1; - t = absl::TimeFromTimeval(tv); - tv = ToTimeval(t); - EXPECT_EQ(min_timeval_sec, tv.tv_sec); - EXPECT_EQ(1, tv.tv_usec); - t -= absl::Microseconds(1); - tv = ToTimeval(t); - EXPECT_EQ(min_timeval_sec, tv.tv_sec); - EXPECT_EQ(0, tv.tv_usec); - t -= absl::Microseconds(1); // no effect - tv = ToTimeval(t); - EXPECT_EQ(min_timeval_sec, tv.tv_sec); - EXPECT_EQ(0, tv.tv_usec); - - const auto max_timespec_sec = - std::numeric_limits<decltype(timespec::tv_sec)>::max(); - const auto min_timespec_sec = - std::numeric_limits<decltype(timespec::tv_sec)>::min(); - timespec ts; - ts.tv_sec = max_timespec_sec; - ts.tv_nsec = 999999998; - t = absl::TimeFromTimespec(ts); - ts = absl::ToTimespec(t); - EXPECT_EQ(max_timespec_sec, ts.tv_sec); - EXPECT_EQ(999999998, ts.tv_nsec); - t += absl::Nanoseconds(1); - ts = absl::ToTimespec(t); - EXPECT_EQ(max_timespec_sec, ts.tv_sec); - EXPECT_EQ(999999999, ts.tv_nsec); - t += absl::Nanoseconds(1); // no effect - ts = absl::ToTimespec(t); - EXPECT_EQ(max_timespec_sec, ts.tv_sec); - EXPECT_EQ(999999999, ts.tv_nsec); - - ts.tv_sec = min_timespec_sec; - ts.tv_nsec = 1; - t = absl::TimeFromTimespec(ts); - ts = absl::ToTimespec(t); - EXPECT_EQ(min_timespec_sec, ts.tv_sec); - EXPECT_EQ(1, ts.tv_nsec); - t -= absl::Nanoseconds(1); - ts = absl::ToTimespec(t); - EXPECT_EQ(min_timespec_sec, ts.tv_sec); - EXPECT_EQ(0, ts.tv_nsec); - t -= absl::Nanoseconds(1); // no effect - ts = absl::ToTimespec(t); - EXPECT_EQ(min_timespec_sec, ts.tv_sec); - EXPECT_EQ(0, ts.tv_nsec); - - // Checks how TimeZone::At() saturates on infinities. - auto ci = utc.At(absl::InfiniteFuture()); - EXPECT_CIVIL_INFO(ci, std::numeric_limits<int64_t>::max(), 12, 31, 23, 59, 59, - 0, false); - EXPECT_EQ(absl::InfiniteDuration(), ci.subsecond); - EXPECT_EQ(absl::Weekday::thursday, absl::GetWeekday(ci.cs)); - EXPECT_EQ(365, absl::GetYearDay(ci.cs)); - EXPECT_STREQ("-00", ci.zone_abbr); // artifact of TimeZone::At() - ci = utc.At(absl::InfinitePast()); - EXPECT_CIVIL_INFO(ci, std::numeric_limits<int64_t>::min(), 1, 1, 0, 0, 0, 0, - false); - EXPECT_EQ(-absl::InfiniteDuration(), ci.subsecond); - EXPECT_EQ(absl::Weekday::sunday, absl::GetWeekday(ci.cs)); - EXPECT_EQ(1, absl::GetYearDay(ci.cs)); - EXPECT_STREQ("-00", ci.zone_abbr); // artifact of TimeZone::At() - - // Approach the maximal Time value from below. - t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 4, 15, 30, 6), utc); - EXPECT_EQ("292277026596-12-04T15:30:06+00:00", - absl::FormatTime(absl::RFC3339_full, t, utc)); - t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 4, 15, 30, 7), utc); - EXPECT_EQ("292277026596-12-04T15:30:07+00:00", - absl::FormatTime(absl::RFC3339_full, t, utc)); - EXPECT_EQ( - absl::UnixEpoch() + absl::Seconds(std::numeric_limits<int64_t>::max()), - t); - - // Checks that we can also get the maximal Time value for a far-east zone. - const absl::TimeZone plus14 = absl::FixedTimeZone(14 * 60 * 60); - t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 5, 5, 30, 7), plus14); - EXPECT_EQ("292277026596-12-05T05:30:07+14:00", - absl::FormatTime(absl::RFC3339_full, t, plus14)); - EXPECT_EQ( - absl::UnixEpoch() + absl::Seconds(std::numeric_limits<int64_t>::max()), - t); - - // One second later should push us to infinity. - t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 4, 15, 30, 8), utc); - EXPECT_EQ("infinite-future", absl::FormatTime(absl::RFC3339_full, t, utc)); - - // Approach the minimal Time value from above. - t = absl::FromCivil(absl::CivilSecond(-292277022657, 1, 27, 8, 29, 53), utc); - EXPECT_EQ("-292277022657-01-27T08:29:53+00:00", - absl::FormatTime(absl::RFC3339_full, t, utc)); - t = absl::FromCivil(absl::CivilSecond(-292277022657, 1, 27, 8, 29, 52), utc); - EXPECT_EQ("-292277022657-01-27T08:29:52+00:00", - absl::FormatTime(absl::RFC3339_full, t, utc)); - EXPECT_EQ( - absl::UnixEpoch() + absl::Seconds(std::numeric_limits<int64_t>::min()), - t); - - // Checks that we can also get the minimal Time value for a far-west zone. - const absl::TimeZone minus12 = absl::FixedTimeZone(-12 * 60 * 60); - t = absl::FromCivil(absl::CivilSecond(-292277022657, 1, 26, 20, 29, 52), - minus12); - EXPECT_EQ("-292277022657-01-26T20:29:52-12:00", - absl::FormatTime(absl::RFC3339_full, t, minus12)); - EXPECT_EQ( - absl::UnixEpoch() + absl::Seconds(std::numeric_limits<int64_t>::min()), - t); - - // One second before should push us to -infinity. - t = absl::FromCivil(absl::CivilSecond(-292277022657, 1, 27, 8, 29, 51), utc); - EXPECT_EQ("infinite-past", absl::FormatTime(absl::RFC3339_full, t, utc)); -} - -// In zones with POSIX-style recurring rules we use special logic to -// handle conversions in the distant future. Here we check the limits -// of those conversions, particularly with respect to integer overflow. -TEST(Time, ExtendedConversionSaturation) { - const absl::TimeZone syd = - absl::time_internal::LoadTimeZone("Australia/Sydney"); - const absl::TimeZone nyc = - absl::time_internal::LoadTimeZone("America/New_York"); - const absl::Time max = - absl::FromUnixSeconds(std::numeric_limits<int64_t>::max()); - absl::TimeZone::CivilInfo ci; - absl::Time t; - - // The maximal time converted in each zone. - ci = syd.At(max); - EXPECT_CIVIL_INFO(ci, 292277026596, 12, 5, 2, 30, 7, 39600, true); - t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 5, 2, 30, 7), syd); - EXPECT_EQ(max, t); - ci = nyc.At(max); - EXPECT_CIVIL_INFO(ci, 292277026596, 12, 4, 10, 30, 7, -18000, false); - t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 4, 10, 30, 7), nyc); - EXPECT_EQ(max, t); - - // One second later should push us to infinity. - t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 5, 2, 30, 8), syd); - EXPECT_EQ(absl::InfiniteFuture(), t); - t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 4, 10, 30, 8), nyc); - EXPECT_EQ(absl::InfiniteFuture(), t); - - // And we should stick there. - t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 5, 2, 30, 9), syd); - EXPECT_EQ(absl::InfiniteFuture(), t); - t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 4, 10, 30, 9), nyc); - EXPECT_EQ(absl::InfiniteFuture(), t); - - // All the way up to a saturated date/time, without overflow. - t = absl::FromCivil(absl::CivilSecond::max(), syd); - EXPECT_EQ(absl::InfiniteFuture(), t); - t = absl::FromCivil(absl::CivilSecond::max(), nyc); - EXPECT_EQ(absl::InfiniteFuture(), t); -} - -TEST(Time, FromCivilAlignment) { - const absl::TimeZone utc = absl::UTCTimeZone(); - const absl::CivilSecond cs(2015, 2, 3, 4, 5, 6); - absl::Time t = absl::FromCivil(cs, utc); - EXPECT_EQ("2015-02-03T04:05:06+00:00", absl::FormatTime(t, utc)); - t = absl::FromCivil(absl::CivilMinute(cs), utc); - EXPECT_EQ("2015-02-03T04:05:00+00:00", absl::FormatTime(t, utc)); - t = absl::FromCivil(absl::CivilHour(cs), utc); - EXPECT_EQ("2015-02-03T04:00:00+00:00", absl::FormatTime(t, utc)); - t = absl::FromCivil(absl::CivilDay(cs), utc); - EXPECT_EQ("2015-02-03T00:00:00+00:00", absl::FormatTime(t, utc)); - t = absl::FromCivil(absl::CivilMonth(cs), utc); - EXPECT_EQ("2015-02-01T00:00:00+00:00", absl::FormatTime(t, utc)); - t = absl::FromCivil(absl::CivilYear(cs), utc); - EXPECT_EQ("2015-01-01T00:00:00+00:00", absl::FormatTime(t, utc)); -} - -TEST(Time, LegacyDateTime) { - const absl::TimeZone utc = absl::UTCTimeZone(); - const std::string ymdhms = "%Y-%m-%d %H:%M:%S"; - const int kMax = std::numeric_limits<int>::max(); - const int kMin = std::numeric_limits<int>::min(); - absl::Time t; - - t = absl::FromDateTime(std::numeric_limits<absl::civil_year_t>::max(), kMax, - kMax, kMax, kMax, kMax, utc); - EXPECT_EQ("infinite-future", - absl::FormatTime(ymdhms, t, utc)); // no overflow - t = absl::FromDateTime(std::numeric_limits<absl::civil_year_t>::min(), kMin, - kMin, kMin, kMin, kMin, utc); - EXPECT_EQ("infinite-past", absl::FormatTime(ymdhms, t, utc)); // no overflow - - // Check normalization. - EXPECT_TRUE(absl::ConvertDateTime(2013, 10, 32, 8, 30, 0, utc).normalized); - t = absl::FromDateTime(2015, 1, 1, 0, 0, 60, utc); - EXPECT_EQ("2015-01-01 00:01:00", absl::FormatTime(ymdhms, t, utc)); - t = absl::FromDateTime(2015, 1, 1, 0, 60, 0, utc); - EXPECT_EQ("2015-01-01 01:00:00", absl::FormatTime(ymdhms, t, utc)); - t = absl::FromDateTime(2015, 1, 1, 24, 0, 0, utc); - EXPECT_EQ("2015-01-02 00:00:00", absl::FormatTime(ymdhms, t, utc)); - t = absl::FromDateTime(2015, 1, 32, 0, 0, 0, utc); - EXPECT_EQ("2015-02-01 00:00:00", absl::FormatTime(ymdhms, t, utc)); - t = absl::FromDateTime(2015, 13, 1, 0, 0, 0, utc); - EXPECT_EQ("2016-01-01 00:00:00", absl::FormatTime(ymdhms, t, utc)); - t = absl::FromDateTime(2015, 13, 32, 60, 60, 60, utc); - EXPECT_EQ("2016-02-03 13:01:00", absl::FormatTime(ymdhms, t, utc)); - t = absl::FromDateTime(2015, 1, 1, 0, 0, -1, utc); - EXPECT_EQ("2014-12-31 23:59:59", absl::FormatTime(ymdhms, t, utc)); - t = absl::FromDateTime(2015, 1, 1, 0, -1, 0, utc); - EXPECT_EQ("2014-12-31 23:59:00", absl::FormatTime(ymdhms, t, utc)); - t = absl::FromDateTime(2015, 1, 1, -1, 0, 0, utc); - EXPECT_EQ("2014-12-31 23:00:00", absl::FormatTime(ymdhms, t, utc)); - t = absl::FromDateTime(2015, 1, -1, 0, 0, 0, utc); - EXPECT_EQ("2014-12-30 00:00:00", absl::FormatTime(ymdhms, t, utc)); - t = absl::FromDateTime(2015, -1, 1, 0, 0, 0, utc); - EXPECT_EQ("2014-11-01 00:00:00", absl::FormatTime(ymdhms, t, utc)); - t = absl::FromDateTime(2015, -1, -1, -1, -1, -1, utc); - EXPECT_EQ("2014-10-29 22:58:59", absl::FormatTime(ymdhms, t, utc)); -} - -TEST(Time, NextTransitionUTC) { - const auto tz = absl::UTCTimeZone(); - absl::TimeZone::CivilTransition trans; - - auto t = absl::InfinitePast(); - EXPECT_FALSE(tz.NextTransition(t, &trans)); - - t = absl::InfiniteFuture(); - EXPECT_FALSE(tz.NextTransition(t, &trans)); -} - -TEST(Time, PrevTransitionUTC) { - const auto tz = absl::UTCTimeZone(); - absl::TimeZone::CivilTransition trans; - - auto t = absl::InfiniteFuture(); - EXPECT_FALSE(tz.PrevTransition(t, &trans)); - - t = absl::InfinitePast(); - EXPECT_FALSE(tz.PrevTransition(t, &trans)); -} - -TEST(Time, NextTransitionNYC) { - const auto tz = absl::time_internal::LoadTimeZone("America/New_York"); - absl::TimeZone::CivilTransition trans; - - auto t = absl::FromCivil(absl::CivilSecond(2018, 6, 30, 0, 0, 0), tz); - EXPECT_TRUE(tz.NextTransition(t, &trans)); - EXPECT_EQ(absl::CivilSecond(2018, 11, 4, 2, 0, 0), trans.from); - EXPECT_EQ(absl::CivilSecond(2018, 11, 4, 1, 0, 0), trans.to); - - t = absl::InfiniteFuture(); - EXPECT_FALSE(tz.NextTransition(t, &trans)); - - t = absl::InfinitePast(); - EXPECT_TRUE(tz.NextTransition(t, &trans)); - if (trans.from == absl::CivilSecond(1918, 03, 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(absl::CivilSecond(1918, 3, 31, 3, 0, 0), trans.to); - } else { - EXPECT_EQ(absl::CivilSecond(1883, 11, 18, 12, 3, 58), trans.from); - EXPECT_EQ(absl::CivilSecond(1883, 11, 18, 12, 0, 0), trans.to); - } -} - -TEST(Time, PrevTransitionNYC) { - const auto tz = absl::time_internal::LoadTimeZone("America/New_York"); - absl::TimeZone::CivilTransition trans; - - auto t = absl::FromCivil(absl::CivilSecond(2018, 6, 30, 0, 0, 0), tz); - EXPECT_TRUE(tz.PrevTransition(t, &trans)); - EXPECT_EQ(absl::CivilSecond(2018, 3, 11, 2, 0, 0), trans.from); - EXPECT_EQ(absl::CivilSecond(2018, 3, 11, 3, 0, 0), trans.to); - - t = absl::InfinitePast(); - EXPECT_FALSE(tz.PrevTransition(t, &trans)); - - t = absl::InfiniteFuture(); - EXPECT_TRUE(tz.PrevTransition(t, &trans)); - // We have a transition but we don't know which one. -} - -} // namespace |