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Diffstat (limited to 'third_party/abseil_cpp/absl/time/duration_test.cc')
| -rw-r--r-- | third_party/abseil_cpp/absl/time/duration_test.cc | 1808 |
1 files changed, 0 insertions, 1808 deletions
diff --git a/third_party/abseil_cpp/absl/time/duration_test.cc b/third_party/abseil_cpp/absl/time/duration_test.cc deleted file mode 100644 index 4d85a2c4f4..0000000000 --- a/third_party/abseil_cpp/absl/time/duration_test.cc +++ /dev/null @@ -1,1808 +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. - -#if defined(_MSC_VER) -#include <winsock2.h> // for timeval -#endif - -#include <chrono> // NOLINT(build/c++11) -#include <cmath> -#include <cstdint> -#include <ctime> -#include <iomanip> -#include <limits> -#include <random> -#include <string> - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/time/time.h" - -namespace { - -constexpr int64_t kint64max = std::numeric_limits<int64_t>::max(); -constexpr int64_t kint64min = std::numeric_limits<int64_t>::min(); - -// Approximates the given number of years. This is only used to make some test -// code more readable. -absl::Duration ApproxYears(int64_t n) { return absl::Hours(n) * 365 * 24; } - -// 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(Duration, ConstExpr) { - constexpr absl::Duration d0 = absl::ZeroDuration(); - static_assert(d0 == absl::ZeroDuration(), "ZeroDuration()"); - constexpr absl::Duration d1 = absl::Seconds(1); - static_assert(d1 == absl::Seconds(1), "Seconds(1)"); - static_assert(d1 != absl::ZeroDuration(), "Seconds(1)"); - constexpr absl::Duration d2 = absl::InfiniteDuration(); - static_assert(d2 == absl::InfiniteDuration(), "InfiniteDuration()"); - static_assert(d2 != absl::ZeroDuration(), "InfiniteDuration()"); -} - -TEST(Duration, ValueSemantics) { - // If this compiles, the test passes. - constexpr absl::Duration a; // Default construction - constexpr absl::Duration b = a; // Copy construction - constexpr absl::Duration c(b); // Copy construction (again) - - absl::Duration d; - d = c; // Assignment -} - -TEST(Duration, Factories) { - constexpr absl::Duration zero = absl::ZeroDuration(); - constexpr absl::Duration nano = absl::Nanoseconds(1); - constexpr absl::Duration micro = absl::Microseconds(1); - constexpr absl::Duration milli = absl::Milliseconds(1); - constexpr absl::Duration sec = absl::Seconds(1); - constexpr absl::Duration min = absl::Minutes(1); - constexpr absl::Duration hour = absl::Hours(1); - - EXPECT_EQ(zero, absl::Duration()); - EXPECT_EQ(zero, absl::Seconds(0)); - EXPECT_EQ(nano, absl::Nanoseconds(1)); - EXPECT_EQ(micro, absl::Nanoseconds(1000)); - EXPECT_EQ(milli, absl::Microseconds(1000)); - EXPECT_EQ(sec, absl::Milliseconds(1000)); - EXPECT_EQ(min, absl::Seconds(60)); - EXPECT_EQ(hour, absl::Minutes(60)); - - // Tests factory limits - const absl::Duration inf = absl::InfiniteDuration(); - - EXPECT_GT(inf, absl::Seconds(kint64max)); - EXPECT_LT(-inf, absl::Seconds(kint64min)); - EXPECT_LT(-inf, absl::Seconds(-kint64max)); - - EXPECT_EQ(inf, absl::Minutes(kint64max)); - EXPECT_EQ(-inf, absl::Minutes(kint64min)); - EXPECT_EQ(-inf, absl::Minutes(-kint64max)); - EXPECT_GT(inf, absl::Minutes(kint64max / 60)); - EXPECT_LT(-inf, absl::Minutes(kint64min / 60)); - EXPECT_LT(-inf, absl::Minutes(-kint64max / 60)); - - EXPECT_EQ(inf, absl::Hours(kint64max)); - EXPECT_EQ(-inf, absl::Hours(kint64min)); - EXPECT_EQ(-inf, absl::Hours(-kint64max)); - EXPECT_GT(inf, absl::Hours(kint64max / 3600)); - EXPECT_LT(-inf, absl::Hours(kint64min / 3600)); - EXPECT_LT(-inf, absl::Hours(-kint64max / 3600)); -} - -TEST(Duration, ToConversion) { -#define TEST_DURATION_CONVERSION(UNIT) \ - do { \ - const absl::Duration d = absl::UNIT(1.5); \ - constexpr absl::Duration z = absl::ZeroDuration(); \ - constexpr absl::Duration inf = absl::InfiniteDuration(); \ - constexpr double dbl_inf = std::numeric_limits<double>::infinity(); \ - EXPECT_EQ(kint64min, absl::ToInt64##UNIT(-inf)); \ - EXPECT_EQ(-1, absl::ToInt64##UNIT(-d)); \ - EXPECT_EQ(0, absl::ToInt64##UNIT(z)); \ - EXPECT_EQ(1, absl::ToInt64##UNIT(d)); \ - EXPECT_EQ(kint64max, absl::ToInt64##UNIT(inf)); \ - EXPECT_EQ(-dbl_inf, absl::ToDouble##UNIT(-inf)); \ - EXPECT_EQ(-1.5, absl::ToDouble##UNIT(-d)); \ - EXPECT_EQ(0, absl::ToDouble##UNIT(z)); \ - EXPECT_EQ(1.5, absl::ToDouble##UNIT(d)); \ - EXPECT_EQ(dbl_inf, absl::ToDouble##UNIT(inf)); \ - } while (0) - - TEST_DURATION_CONVERSION(Nanoseconds); - TEST_DURATION_CONVERSION(Microseconds); - TEST_DURATION_CONVERSION(Milliseconds); - TEST_DURATION_CONVERSION(Seconds); - TEST_DURATION_CONVERSION(Minutes); - TEST_DURATION_CONVERSION(Hours); - -#undef TEST_DURATION_CONVERSION -} - -template <int64_t N> -void TestToConversion() { - constexpr absl::Duration nano = absl::Nanoseconds(N); - EXPECT_EQ(N, absl::ToInt64Nanoseconds(nano)); - EXPECT_EQ(0, absl::ToInt64Microseconds(nano)); - EXPECT_EQ(0, absl::ToInt64Milliseconds(nano)); - EXPECT_EQ(0, absl::ToInt64Seconds(nano)); - EXPECT_EQ(0, absl::ToInt64Minutes(nano)); - EXPECT_EQ(0, absl::ToInt64Hours(nano)); - const absl::Duration micro = absl::Microseconds(N); - EXPECT_EQ(N * 1000, absl::ToInt64Nanoseconds(micro)); - EXPECT_EQ(N, absl::ToInt64Microseconds(micro)); - EXPECT_EQ(0, absl::ToInt64Milliseconds(micro)); - EXPECT_EQ(0, absl::ToInt64Seconds(micro)); - EXPECT_EQ(0, absl::ToInt64Minutes(micro)); - EXPECT_EQ(0, absl::ToInt64Hours(micro)); - const absl::Duration milli = absl::Milliseconds(N); - EXPECT_EQ(N * 1000 * 1000, absl::ToInt64Nanoseconds(milli)); - EXPECT_EQ(N * 1000, absl::ToInt64Microseconds(milli)); - EXPECT_EQ(N, absl::ToInt64Milliseconds(milli)); - EXPECT_EQ(0, absl::ToInt64Seconds(milli)); - EXPECT_EQ(0, absl::ToInt64Minutes(milli)); - EXPECT_EQ(0, absl::ToInt64Hours(milli)); - const absl::Duration sec = absl::Seconds(N); - EXPECT_EQ(N * 1000 * 1000 * 1000, absl::ToInt64Nanoseconds(sec)); - EXPECT_EQ(N * 1000 * 1000, absl::ToInt64Microseconds(sec)); - EXPECT_EQ(N * 1000, absl::ToInt64Milliseconds(sec)); - EXPECT_EQ(N, absl::ToInt64Seconds(sec)); - EXPECT_EQ(0, absl::ToInt64Minutes(sec)); - EXPECT_EQ(0, absl::ToInt64Hours(sec)); - const absl::Duration min = absl::Minutes(N); - EXPECT_EQ(N * 60 * 1000 * 1000 * 1000, absl::ToInt64Nanoseconds(min)); - EXPECT_EQ(N * 60 * 1000 * 1000, absl::ToInt64Microseconds(min)); - EXPECT_EQ(N * 60 * 1000, absl::ToInt64Milliseconds(min)); - EXPECT_EQ(N * 60, absl::ToInt64Seconds(min)); - EXPECT_EQ(N, absl::ToInt64Minutes(min)); - EXPECT_EQ(0, absl::ToInt64Hours(min)); - const absl::Duration hour = absl::Hours(N); - EXPECT_EQ(N * 60 * 60 * 1000 * 1000 * 1000, absl::ToInt64Nanoseconds(hour)); - EXPECT_EQ(N * 60 * 60 * 1000 * 1000, absl::ToInt64Microseconds(hour)); - EXPECT_EQ(N * 60 * 60 * 1000, absl::ToInt64Milliseconds(hour)); - EXPECT_EQ(N * 60 * 60, absl::ToInt64Seconds(hour)); - EXPECT_EQ(N * 60, absl::ToInt64Minutes(hour)); - EXPECT_EQ(N, absl::ToInt64Hours(hour)); -} - -TEST(Duration, ToConversionDeprecated) { - TestToConversion<43>(); - TestToConversion<1>(); - TestToConversion<0>(); - TestToConversion<-1>(); - TestToConversion<-43>(); -} - -template <int64_t N> -void TestFromChronoBasicEquality() { - using std::chrono::nanoseconds; - using std::chrono::microseconds; - using std::chrono::milliseconds; - using std::chrono::seconds; - using std::chrono::minutes; - using std::chrono::hours; - - static_assert(absl::Nanoseconds(N) == absl::FromChrono(nanoseconds(N)), ""); - static_assert(absl::Microseconds(N) == absl::FromChrono(microseconds(N)), ""); - static_assert(absl::Milliseconds(N) == absl::FromChrono(milliseconds(N)), ""); - static_assert(absl::Seconds(N) == absl::FromChrono(seconds(N)), ""); - static_assert(absl::Minutes(N) == absl::FromChrono(minutes(N)), ""); - static_assert(absl::Hours(N) == absl::FromChrono(hours(N)), ""); -} - -TEST(Duration, FromChrono) { - TestFromChronoBasicEquality<-123>(); - TestFromChronoBasicEquality<-1>(); - TestFromChronoBasicEquality<0>(); - TestFromChronoBasicEquality<1>(); - TestFromChronoBasicEquality<123>(); - - // Minutes (might, depending on the platform) saturate at +inf. - const auto chrono_minutes_max = std::chrono::minutes::max(); - const auto minutes_max = absl::FromChrono(chrono_minutes_max); - const int64_t minutes_max_count = chrono_minutes_max.count(); - if (minutes_max_count > kint64max / 60) { - EXPECT_EQ(absl::InfiniteDuration(), minutes_max); - } else { - EXPECT_EQ(absl::Minutes(minutes_max_count), minutes_max); - } - - // Minutes (might, depending on the platform) saturate at -inf. - const auto chrono_minutes_min = std::chrono::minutes::min(); - const auto minutes_min = absl::FromChrono(chrono_minutes_min); - const int64_t minutes_min_count = chrono_minutes_min.count(); - if (minutes_min_count < kint64min / 60) { - EXPECT_EQ(-absl::InfiniteDuration(), minutes_min); - } else { - EXPECT_EQ(absl::Minutes(minutes_min_count), minutes_min); - } - - // Hours (might, depending on the platform) saturate at +inf. - const auto chrono_hours_max = std::chrono::hours::max(); - const auto hours_max = absl::FromChrono(chrono_hours_max); - const int64_t hours_max_count = chrono_hours_max.count(); - if (hours_max_count > kint64max / 3600) { - EXPECT_EQ(absl::InfiniteDuration(), hours_max); - } else { - EXPECT_EQ(absl::Hours(hours_max_count), hours_max); - } - - // Hours (might, depending on the platform) saturate at -inf. - const auto chrono_hours_min = std::chrono::hours::min(); - const auto hours_min = absl::FromChrono(chrono_hours_min); - const int64_t hours_min_count = chrono_hours_min.count(); - if (hours_min_count < kint64min / 3600) { - EXPECT_EQ(-absl::InfiniteDuration(), hours_min); - } else { - EXPECT_EQ(absl::Hours(hours_min_count), hours_min); - } -} - -template <int64_t N> -void TestToChrono() { - using std::chrono::nanoseconds; - using std::chrono::microseconds; - using std::chrono::milliseconds; - using std::chrono::seconds; - using std::chrono::minutes; - using std::chrono::hours; - - EXPECT_EQ(nanoseconds(N), absl::ToChronoNanoseconds(absl::Nanoseconds(N))); - EXPECT_EQ(microseconds(N), absl::ToChronoMicroseconds(absl::Microseconds(N))); - EXPECT_EQ(milliseconds(N), absl::ToChronoMilliseconds(absl::Milliseconds(N))); - EXPECT_EQ(seconds(N), absl::ToChronoSeconds(absl::Seconds(N))); - - constexpr auto absl_minutes = absl::Minutes(N); - auto chrono_minutes = minutes(N); - if (absl_minutes == -absl::InfiniteDuration()) { - chrono_minutes = minutes::min(); - } else if (absl_minutes == absl::InfiniteDuration()) { - chrono_minutes = minutes::max(); - } - EXPECT_EQ(chrono_minutes, absl::ToChronoMinutes(absl_minutes)); - - constexpr auto absl_hours = absl::Hours(N); - auto chrono_hours = hours(N); - if (absl_hours == -absl::InfiniteDuration()) { - chrono_hours = hours::min(); - } else if (absl_hours == absl::InfiniteDuration()) { - chrono_hours = hours::max(); - } - EXPECT_EQ(chrono_hours, absl::ToChronoHours(absl_hours)); -} - -TEST(Duration, ToChrono) { - using std::chrono::nanoseconds; - using std::chrono::microseconds; - using std::chrono::milliseconds; - using std::chrono::seconds; - using std::chrono::minutes; - using std::chrono::hours; - - TestToChrono<kint64min>(); - TestToChrono<-1>(); - TestToChrono<0>(); - TestToChrono<1>(); - TestToChrono<kint64max>(); - - // Verify truncation toward zero. - const auto tick = absl::Nanoseconds(1) / 4; - EXPECT_EQ(nanoseconds(0), absl::ToChronoNanoseconds(tick)); - EXPECT_EQ(nanoseconds(0), absl::ToChronoNanoseconds(-tick)); - EXPECT_EQ(microseconds(0), absl::ToChronoMicroseconds(tick)); - EXPECT_EQ(microseconds(0), absl::ToChronoMicroseconds(-tick)); - EXPECT_EQ(milliseconds(0), absl::ToChronoMilliseconds(tick)); - EXPECT_EQ(milliseconds(0), absl::ToChronoMilliseconds(-tick)); - EXPECT_EQ(seconds(0), absl::ToChronoSeconds(tick)); - EXPECT_EQ(seconds(0), absl::ToChronoSeconds(-tick)); - EXPECT_EQ(minutes(0), absl::ToChronoMinutes(tick)); - EXPECT_EQ(minutes(0), absl::ToChronoMinutes(-tick)); - EXPECT_EQ(hours(0), absl::ToChronoHours(tick)); - EXPECT_EQ(hours(0), absl::ToChronoHours(-tick)); - - // Verifies +/- infinity saturation at max/min. - constexpr auto inf = absl::InfiniteDuration(); - EXPECT_EQ(nanoseconds::min(), absl::ToChronoNanoseconds(-inf)); - EXPECT_EQ(nanoseconds::max(), absl::ToChronoNanoseconds(inf)); - EXPECT_EQ(microseconds::min(), absl::ToChronoMicroseconds(-inf)); - EXPECT_EQ(microseconds::max(), absl::ToChronoMicroseconds(inf)); - EXPECT_EQ(milliseconds::min(), absl::ToChronoMilliseconds(-inf)); - EXPECT_EQ(milliseconds::max(), absl::ToChronoMilliseconds(inf)); - EXPECT_EQ(seconds::min(), absl::ToChronoSeconds(-inf)); - EXPECT_EQ(seconds::max(), absl::ToChronoSeconds(inf)); - EXPECT_EQ(minutes::min(), absl::ToChronoMinutes(-inf)); - EXPECT_EQ(minutes::max(), absl::ToChronoMinutes(inf)); - EXPECT_EQ(hours::min(), absl::ToChronoHours(-inf)); - EXPECT_EQ(hours::max(), absl::ToChronoHours(inf)); -} - -TEST(Duration, FactoryOverloads) { - enum E { kOne = 1 }; -#define TEST_FACTORY_OVERLOADS(NAME) \ - EXPECT_EQ(1, NAME(kOne) / NAME(kOne)); \ - EXPECT_EQ(1, NAME(static_cast<int8_t>(1)) / NAME(1)); \ - EXPECT_EQ(1, NAME(static_cast<int16_t>(1)) / NAME(1)); \ - EXPECT_EQ(1, NAME(static_cast<int32_t>(1)) / NAME(1)); \ - EXPECT_EQ(1, NAME(static_cast<int64_t>(1)) / NAME(1)); \ - EXPECT_EQ(1, NAME(static_cast<uint8_t>(1)) / NAME(1)); \ - EXPECT_EQ(1, NAME(static_cast<uint16_t>(1)) / NAME(1)); \ - EXPECT_EQ(1, NAME(static_cast<uint32_t>(1)) / NAME(1)); \ - EXPECT_EQ(1, NAME(static_cast<uint64_t>(1)) / NAME(1)); \ - EXPECT_EQ(NAME(1) / 2, NAME(static_cast<float>(0.5))); \ - EXPECT_EQ(NAME(1) / 2, NAME(static_cast<double>(0.5))); \ - EXPECT_EQ(1.5, absl::FDivDuration(NAME(static_cast<float>(1.5)), NAME(1))); \ - EXPECT_EQ(1.5, absl::FDivDuration(NAME(static_cast<double>(1.5)), NAME(1))); - - TEST_FACTORY_OVERLOADS(absl::Nanoseconds); - TEST_FACTORY_OVERLOADS(absl::Microseconds); - TEST_FACTORY_OVERLOADS(absl::Milliseconds); - TEST_FACTORY_OVERLOADS(absl::Seconds); - TEST_FACTORY_OVERLOADS(absl::Minutes); - TEST_FACTORY_OVERLOADS(absl::Hours); - -#undef TEST_FACTORY_OVERLOADS - - EXPECT_EQ(absl::Milliseconds(1500), absl::Seconds(1.5)); - EXPECT_LT(absl::Nanoseconds(1), absl::Nanoseconds(1.5)); - EXPECT_GT(absl::Nanoseconds(2), absl::Nanoseconds(1.5)); - - const double dbl_inf = std::numeric_limits<double>::infinity(); - EXPECT_EQ(absl::InfiniteDuration(), absl::Nanoseconds(dbl_inf)); - EXPECT_EQ(absl::InfiniteDuration(), absl::Microseconds(dbl_inf)); - EXPECT_EQ(absl::InfiniteDuration(), absl::Milliseconds(dbl_inf)); - EXPECT_EQ(absl::InfiniteDuration(), absl::Seconds(dbl_inf)); - EXPECT_EQ(absl::InfiniteDuration(), absl::Minutes(dbl_inf)); - EXPECT_EQ(absl::InfiniteDuration(), absl::Hours(dbl_inf)); - EXPECT_EQ(-absl::InfiniteDuration(), absl::Nanoseconds(-dbl_inf)); - EXPECT_EQ(-absl::InfiniteDuration(), absl::Microseconds(-dbl_inf)); - EXPECT_EQ(-absl::InfiniteDuration(), absl::Milliseconds(-dbl_inf)); - EXPECT_EQ(-absl::InfiniteDuration(), absl::Seconds(-dbl_inf)); - EXPECT_EQ(-absl::InfiniteDuration(), absl::Minutes(-dbl_inf)); - EXPECT_EQ(-absl::InfiniteDuration(), absl::Hours(-dbl_inf)); -} - -TEST(Duration, InfinityExamples) { - // These examples are used in the documentation in time.h. They are - // written so that they can be copy-n-pasted easily. - - constexpr absl::Duration inf = absl::InfiniteDuration(); - constexpr absl::Duration d = absl::Seconds(1); // Any finite duration - - EXPECT_TRUE(inf == inf + inf); - EXPECT_TRUE(inf == inf + d); - EXPECT_TRUE(inf == inf - inf); - EXPECT_TRUE(-inf == d - inf); - - EXPECT_TRUE(inf == d * 1e100); - EXPECT_TRUE(0 == d / inf); // NOLINT(readability/check) - - // Division by zero returns infinity, or kint64min/MAX where necessary. - EXPECT_TRUE(inf == d / 0); - EXPECT_TRUE(kint64max == d / absl::ZeroDuration()); -} - -TEST(Duration, InfinityComparison) { - const absl::Duration inf = absl::InfiniteDuration(); - const absl::Duration any_dur = absl::Seconds(1); - - // Equality - EXPECT_EQ(inf, inf); - EXPECT_EQ(-inf, -inf); - EXPECT_NE(inf, -inf); - EXPECT_NE(any_dur, inf); - EXPECT_NE(any_dur, -inf); - - // Relational - EXPECT_GT(inf, any_dur); - EXPECT_LT(-inf, any_dur); - EXPECT_LT(-inf, inf); - EXPECT_GT(inf, -inf); -} - -TEST(Duration, InfinityAddition) { - const absl::Duration sec_max = absl::Seconds(kint64max); - const absl::Duration sec_min = absl::Seconds(kint64min); - const absl::Duration any_dur = absl::Seconds(1); - const absl::Duration inf = absl::InfiniteDuration(); - - // Addition - EXPECT_EQ(inf, inf + inf); - EXPECT_EQ(inf, inf + -inf); - EXPECT_EQ(-inf, -inf + inf); - EXPECT_EQ(-inf, -inf + -inf); - - EXPECT_EQ(inf, inf + any_dur); - EXPECT_EQ(inf, any_dur + inf); - EXPECT_EQ(-inf, -inf + any_dur); - EXPECT_EQ(-inf, any_dur + -inf); - - // Interesting case - absl::Duration almost_inf = sec_max + absl::Nanoseconds(999999999); - EXPECT_GT(inf, almost_inf); - almost_inf += -absl::Nanoseconds(999999999); - EXPECT_GT(inf, almost_inf); - - // Addition overflow/underflow - EXPECT_EQ(inf, sec_max + absl::Seconds(1)); - EXPECT_EQ(inf, sec_max + sec_max); - EXPECT_EQ(-inf, sec_min + -absl::Seconds(1)); - EXPECT_EQ(-inf, sec_min + -sec_max); - - // For reference: IEEE 754 behavior - const double dbl_inf = std::numeric_limits<double>::infinity(); - EXPECT_TRUE(std::isinf(dbl_inf + dbl_inf)); - EXPECT_TRUE(std::isnan(dbl_inf + -dbl_inf)); // We return inf - EXPECT_TRUE(std::isnan(-dbl_inf + dbl_inf)); // We return inf - EXPECT_TRUE(std::isinf(-dbl_inf + -dbl_inf)); -} - -TEST(Duration, InfinitySubtraction) { - const absl::Duration sec_max = absl::Seconds(kint64max); - const absl::Duration sec_min = absl::Seconds(kint64min); - const absl::Duration any_dur = absl::Seconds(1); - const absl::Duration inf = absl::InfiniteDuration(); - - // Subtraction - EXPECT_EQ(inf, inf - inf); - EXPECT_EQ(inf, inf - -inf); - EXPECT_EQ(-inf, -inf - inf); - EXPECT_EQ(-inf, -inf - -inf); - - EXPECT_EQ(inf, inf - any_dur); - EXPECT_EQ(-inf, any_dur - inf); - EXPECT_EQ(-inf, -inf - any_dur); - EXPECT_EQ(inf, any_dur - -inf); - - // Subtraction overflow/underflow - EXPECT_EQ(inf, sec_max - -absl::Seconds(1)); - EXPECT_EQ(inf, sec_max - -sec_max); - EXPECT_EQ(-inf, sec_min - absl::Seconds(1)); - EXPECT_EQ(-inf, sec_min - sec_max); - - // Interesting case - absl::Duration almost_neg_inf = sec_min; - EXPECT_LT(-inf, almost_neg_inf); - almost_neg_inf -= -absl::Nanoseconds(1); - EXPECT_LT(-inf, almost_neg_inf); - - // For reference: IEEE 754 behavior - const double dbl_inf = std::numeric_limits<double>::infinity(); - EXPECT_TRUE(std::isnan(dbl_inf - dbl_inf)); // We return inf - EXPECT_TRUE(std::isinf(dbl_inf - -dbl_inf)); - EXPECT_TRUE(std::isinf(-dbl_inf - dbl_inf)); - EXPECT_TRUE(std::isnan(-dbl_inf - -dbl_inf)); // We return inf -} - -TEST(Duration, InfinityMultiplication) { - const absl::Duration sec_max = absl::Seconds(kint64max); - const absl::Duration sec_min = absl::Seconds(kint64min); - const absl::Duration inf = absl::InfiniteDuration(); - -#define TEST_INF_MUL_WITH_TYPE(T) \ - EXPECT_EQ(inf, inf * static_cast<T>(2)); \ - EXPECT_EQ(-inf, inf * static_cast<T>(-2)); \ - EXPECT_EQ(-inf, -inf * static_cast<T>(2)); \ - EXPECT_EQ(inf, -inf * static_cast<T>(-2)); \ - EXPECT_EQ(inf, inf * static_cast<T>(0)); \ - EXPECT_EQ(-inf, -inf * static_cast<T>(0)); \ - EXPECT_EQ(inf, sec_max * static_cast<T>(2)); \ - EXPECT_EQ(inf, sec_min * static_cast<T>(-2)); \ - EXPECT_EQ(inf, (sec_max / static_cast<T>(2)) * static_cast<T>(3)); \ - EXPECT_EQ(-inf, sec_max * static_cast<T>(-2)); \ - EXPECT_EQ(-inf, sec_min * static_cast<T>(2)); \ - EXPECT_EQ(-inf, (sec_min / static_cast<T>(2)) * static_cast<T>(3)); - - TEST_INF_MUL_WITH_TYPE(int64_t); // NOLINT(readability/function) - TEST_INF_MUL_WITH_TYPE(double); // NOLINT(readability/function) - -#undef TEST_INF_MUL_WITH_TYPE - - const double dbl_inf = std::numeric_limits<double>::infinity(); - EXPECT_EQ(inf, inf * dbl_inf); - EXPECT_EQ(-inf, -inf * dbl_inf); - EXPECT_EQ(-inf, inf * -dbl_inf); - EXPECT_EQ(inf, -inf * -dbl_inf); - - const absl::Duration any_dur = absl::Seconds(1); - EXPECT_EQ(inf, any_dur * dbl_inf); - EXPECT_EQ(-inf, -any_dur * dbl_inf); - EXPECT_EQ(-inf, any_dur * -dbl_inf); - EXPECT_EQ(inf, -any_dur * -dbl_inf); - - // Fixed-point multiplication will produce a finite value, whereas floating - // point fuzziness will overflow to inf. - EXPECT_NE(absl::InfiniteDuration(), absl::Seconds(1) * kint64max); - EXPECT_EQ(inf, absl::Seconds(1) * static_cast<double>(kint64max)); - EXPECT_NE(-absl::InfiniteDuration(), absl::Seconds(1) * kint64min); - EXPECT_EQ(-inf, absl::Seconds(1) * static_cast<double>(kint64min)); - - // Note that sec_max * or / by 1.0 overflows to inf due to the 53-bit - // limitations of double. - EXPECT_NE(inf, sec_max); - EXPECT_NE(inf, sec_max / 1); - EXPECT_EQ(inf, sec_max / 1.0); - EXPECT_NE(inf, sec_max * 1); - EXPECT_EQ(inf, sec_max * 1.0); -} - -TEST(Duration, InfinityDivision) { - const absl::Duration sec_max = absl::Seconds(kint64max); - const absl::Duration sec_min = absl::Seconds(kint64min); - const absl::Duration inf = absl::InfiniteDuration(); - - // Division of Duration by a double -#define TEST_INF_DIV_WITH_TYPE(T) \ - EXPECT_EQ(inf, inf / static_cast<T>(2)); \ - EXPECT_EQ(-inf, inf / static_cast<T>(-2)); \ - EXPECT_EQ(-inf, -inf / static_cast<T>(2)); \ - EXPECT_EQ(inf, -inf / static_cast<T>(-2)); - - TEST_INF_DIV_WITH_TYPE(int64_t); // NOLINT(readability/function) - TEST_INF_DIV_WITH_TYPE(double); // NOLINT(readability/function) - -#undef TEST_INF_DIV_WITH_TYPE - - // Division of Duration by a double overflow/underflow - EXPECT_EQ(inf, sec_max / 0.5); - EXPECT_EQ(inf, sec_min / -0.5); - EXPECT_EQ(inf, ((sec_max / 0.5) + absl::Seconds(1)) / 0.5); - EXPECT_EQ(-inf, sec_max / -0.5); - EXPECT_EQ(-inf, sec_min / 0.5); - EXPECT_EQ(-inf, ((sec_min / 0.5) - absl::Seconds(1)) / 0.5); - - const double dbl_inf = std::numeric_limits<double>::infinity(); - EXPECT_EQ(inf, inf / dbl_inf); - EXPECT_EQ(-inf, inf / -dbl_inf); - EXPECT_EQ(-inf, -inf / dbl_inf); - EXPECT_EQ(inf, -inf / -dbl_inf); - - const absl::Duration any_dur = absl::Seconds(1); - EXPECT_EQ(absl::ZeroDuration(), any_dur / dbl_inf); - EXPECT_EQ(absl::ZeroDuration(), any_dur / -dbl_inf); - EXPECT_EQ(absl::ZeroDuration(), -any_dur / dbl_inf); - EXPECT_EQ(absl::ZeroDuration(), -any_dur / -dbl_inf); -} - -TEST(Duration, InfinityModulus) { - const absl::Duration sec_max = absl::Seconds(kint64max); - const absl::Duration any_dur = absl::Seconds(1); - const absl::Duration inf = absl::InfiniteDuration(); - - EXPECT_EQ(inf, inf % inf); - EXPECT_EQ(inf, inf % -inf); - EXPECT_EQ(-inf, -inf % -inf); - EXPECT_EQ(-inf, -inf % inf); - - EXPECT_EQ(any_dur, any_dur % inf); - EXPECT_EQ(any_dur, any_dur % -inf); - EXPECT_EQ(-any_dur, -any_dur % inf); - EXPECT_EQ(-any_dur, -any_dur % -inf); - - EXPECT_EQ(inf, inf % -any_dur); - EXPECT_EQ(inf, inf % any_dur); - EXPECT_EQ(-inf, -inf % -any_dur); - EXPECT_EQ(-inf, -inf % any_dur); - - // Remainder isn't affected by overflow. - EXPECT_EQ(absl::ZeroDuration(), sec_max % absl::Seconds(1)); - EXPECT_EQ(absl::ZeroDuration(), sec_max % absl::Milliseconds(1)); - EXPECT_EQ(absl::ZeroDuration(), sec_max % absl::Microseconds(1)); - EXPECT_EQ(absl::ZeroDuration(), sec_max % absl::Nanoseconds(1)); - EXPECT_EQ(absl::ZeroDuration(), sec_max % absl::Nanoseconds(1) / 4); -} - -TEST(Duration, InfinityIDiv) { - const absl::Duration sec_max = absl::Seconds(kint64max); - const absl::Duration any_dur = absl::Seconds(1); - const absl::Duration inf = absl::InfiniteDuration(); - const double dbl_inf = std::numeric_limits<double>::infinity(); - - // IDivDuration (int64_t return value + a remainer) - absl::Duration rem = absl::ZeroDuration(); - EXPECT_EQ(kint64max, absl::IDivDuration(inf, inf, &rem)); - EXPECT_EQ(inf, rem); - - rem = absl::ZeroDuration(); - EXPECT_EQ(kint64max, absl::IDivDuration(-inf, -inf, &rem)); - EXPECT_EQ(-inf, rem); - - rem = absl::ZeroDuration(); - EXPECT_EQ(kint64max, absl::IDivDuration(inf, any_dur, &rem)); - EXPECT_EQ(inf, rem); - - rem = absl::ZeroDuration(); - EXPECT_EQ(0, absl::IDivDuration(any_dur, inf, &rem)); - EXPECT_EQ(any_dur, rem); - - rem = absl::ZeroDuration(); - EXPECT_EQ(kint64max, absl::IDivDuration(-inf, -any_dur, &rem)); - EXPECT_EQ(-inf, rem); - - rem = absl::ZeroDuration(); - EXPECT_EQ(0, absl::IDivDuration(-any_dur, -inf, &rem)); - EXPECT_EQ(-any_dur, rem); - - rem = absl::ZeroDuration(); - EXPECT_EQ(kint64min, absl::IDivDuration(-inf, inf, &rem)); - EXPECT_EQ(-inf, rem); - - rem = absl::ZeroDuration(); - EXPECT_EQ(kint64min, absl::IDivDuration(inf, -inf, &rem)); - EXPECT_EQ(inf, rem); - - rem = absl::ZeroDuration(); - EXPECT_EQ(kint64min, absl::IDivDuration(-inf, any_dur, &rem)); - EXPECT_EQ(-inf, rem); - - rem = absl::ZeroDuration(); - EXPECT_EQ(0, absl::IDivDuration(-any_dur, inf, &rem)); - EXPECT_EQ(-any_dur, rem); - - rem = absl::ZeroDuration(); - EXPECT_EQ(kint64min, absl::IDivDuration(inf, -any_dur, &rem)); - EXPECT_EQ(inf, rem); - - rem = absl::ZeroDuration(); - EXPECT_EQ(0, absl::IDivDuration(any_dur, -inf, &rem)); - EXPECT_EQ(any_dur, rem); - - // IDivDuration overflow/underflow - rem = any_dur; - EXPECT_EQ(kint64max, - absl::IDivDuration(sec_max, absl::Nanoseconds(1) / 4, &rem)); - EXPECT_EQ(sec_max - absl::Nanoseconds(kint64max) / 4, rem); - - rem = any_dur; - EXPECT_EQ(kint64max, - absl::IDivDuration(sec_max, absl::Milliseconds(1), &rem)); - EXPECT_EQ(sec_max - absl::Milliseconds(kint64max), rem); - - rem = any_dur; - EXPECT_EQ(kint64max, - absl::IDivDuration(-sec_max, -absl::Milliseconds(1), &rem)); - EXPECT_EQ(-sec_max + absl::Milliseconds(kint64max), rem); - - rem = any_dur; - EXPECT_EQ(kint64min, - absl::IDivDuration(-sec_max, absl::Milliseconds(1), &rem)); - EXPECT_EQ(-sec_max - absl::Milliseconds(kint64min), rem); - - rem = any_dur; - EXPECT_EQ(kint64min, - absl::IDivDuration(sec_max, -absl::Milliseconds(1), &rem)); - EXPECT_EQ(sec_max + absl::Milliseconds(kint64min), rem); - - // - // operator/(Duration, Duration) is a wrapper for IDivDuration(). - // - - // IEEE 754 says inf / inf should be nan, but int64_t doesn't have - // nan so we'll return kint64max/kint64min instead. - EXPECT_TRUE(std::isnan(dbl_inf / dbl_inf)); - EXPECT_EQ(kint64max, inf / inf); - EXPECT_EQ(kint64max, -inf / -inf); - EXPECT_EQ(kint64min, -inf / inf); - EXPECT_EQ(kint64min, inf / -inf); - - EXPECT_TRUE(std::isinf(dbl_inf / 2.0)); - EXPECT_EQ(kint64max, inf / any_dur); - EXPECT_EQ(kint64max, -inf / -any_dur); - EXPECT_EQ(kint64min, -inf / any_dur); - EXPECT_EQ(kint64min, inf / -any_dur); - - EXPECT_EQ(0.0, 2.0 / dbl_inf); - EXPECT_EQ(0, any_dur / inf); - EXPECT_EQ(0, any_dur / -inf); - EXPECT_EQ(0, -any_dur / inf); - EXPECT_EQ(0, -any_dur / -inf); - EXPECT_EQ(0, absl::ZeroDuration() / inf); - - // Division of Duration by a Duration overflow/underflow - EXPECT_EQ(kint64max, sec_max / absl::Milliseconds(1)); - EXPECT_EQ(kint64max, -sec_max / -absl::Milliseconds(1)); - EXPECT_EQ(kint64min, -sec_max / absl::Milliseconds(1)); - EXPECT_EQ(kint64min, sec_max / -absl::Milliseconds(1)); -} - -TEST(Duration, InfinityFDiv) { - const absl::Duration any_dur = absl::Seconds(1); - const absl::Duration inf = absl::InfiniteDuration(); - const double dbl_inf = std::numeric_limits<double>::infinity(); - - EXPECT_EQ(dbl_inf, absl::FDivDuration(inf, inf)); - EXPECT_EQ(dbl_inf, absl::FDivDuration(-inf, -inf)); - EXPECT_EQ(dbl_inf, absl::FDivDuration(inf, any_dur)); - EXPECT_EQ(0.0, absl::FDivDuration(any_dur, inf)); - EXPECT_EQ(dbl_inf, absl::FDivDuration(-inf, -any_dur)); - EXPECT_EQ(0.0, absl::FDivDuration(-any_dur, -inf)); - - EXPECT_EQ(-dbl_inf, absl::FDivDuration(-inf, inf)); - EXPECT_EQ(-dbl_inf, absl::FDivDuration(inf, -inf)); - EXPECT_EQ(-dbl_inf, absl::FDivDuration(-inf, any_dur)); - EXPECT_EQ(0.0, absl::FDivDuration(-any_dur, inf)); - EXPECT_EQ(-dbl_inf, absl::FDivDuration(inf, -any_dur)); - EXPECT_EQ(0.0, absl::FDivDuration(any_dur, -inf)); -} - -TEST(Duration, DivisionByZero) { - const absl::Duration zero = absl::ZeroDuration(); - const absl::Duration inf = absl::InfiniteDuration(); - const absl::Duration any_dur = absl::Seconds(1); - const double dbl_inf = std::numeric_limits<double>::infinity(); - const double dbl_denorm = std::numeric_limits<double>::denorm_min(); - - // Operator/(Duration, double) - EXPECT_EQ(inf, zero / 0.0); - EXPECT_EQ(-inf, zero / -0.0); - EXPECT_EQ(inf, any_dur / 0.0); - EXPECT_EQ(-inf, any_dur / -0.0); - EXPECT_EQ(-inf, -any_dur / 0.0); - EXPECT_EQ(inf, -any_dur / -0.0); - - // Tests dividing by a number very close to, but not quite zero. - EXPECT_EQ(zero, zero / dbl_denorm); - EXPECT_EQ(zero, zero / -dbl_denorm); - EXPECT_EQ(inf, any_dur / dbl_denorm); - EXPECT_EQ(-inf, any_dur / -dbl_denorm); - EXPECT_EQ(-inf, -any_dur / dbl_denorm); - EXPECT_EQ(inf, -any_dur / -dbl_denorm); - - // IDiv - absl::Duration rem = zero; - EXPECT_EQ(kint64max, absl::IDivDuration(zero, zero, &rem)); - EXPECT_EQ(inf, rem); - - rem = zero; - EXPECT_EQ(kint64max, absl::IDivDuration(any_dur, zero, &rem)); - EXPECT_EQ(inf, rem); - - rem = zero; - EXPECT_EQ(kint64min, absl::IDivDuration(-any_dur, zero, &rem)); - EXPECT_EQ(-inf, rem); - - // Operator/(Duration, Duration) - EXPECT_EQ(kint64max, zero / zero); - EXPECT_EQ(kint64max, any_dur / zero); - EXPECT_EQ(kint64min, -any_dur / zero); - - // FDiv - EXPECT_EQ(dbl_inf, absl::FDivDuration(zero, zero)); - EXPECT_EQ(dbl_inf, absl::FDivDuration(any_dur, zero)); - EXPECT_EQ(-dbl_inf, absl::FDivDuration(-any_dur, zero)); -} - -TEST(Duration, NaN) { - // Note that IEEE 754 does not define the behavior of a nan's sign when it is - // copied, so the code below allows for either + or - InfiniteDuration. -#define TEST_NAN_HANDLING(NAME, NAN) \ - do { \ - const auto inf = absl::InfiniteDuration(); \ - auto x = NAME(NAN); \ - EXPECT_TRUE(x == inf || x == -inf); \ - auto y = NAME(42); \ - y *= NAN; \ - EXPECT_TRUE(y == inf || y == -inf); \ - auto z = NAME(42); \ - z /= NAN; \ - EXPECT_TRUE(z == inf || z == -inf); \ - } while (0) - - const double nan = std::numeric_limits<double>::quiet_NaN(); - TEST_NAN_HANDLING(absl::Nanoseconds, nan); - TEST_NAN_HANDLING(absl::Microseconds, nan); - TEST_NAN_HANDLING(absl::Milliseconds, nan); - TEST_NAN_HANDLING(absl::Seconds, nan); - TEST_NAN_HANDLING(absl::Minutes, nan); - TEST_NAN_HANDLING(absl::Hours, nan); - - TEST_NAN_HANDLING(absl::Nanoseconds, -nan); - TEST_NAN_HANDLING(absl::Microseconds, -nan); - TEST_NAN_HANDLING(absl::Milliseconds, -nan); - TEST_NAN_HANDLING(absl::Seconds, -nan); - TEST_NAN_HANDLING(absl::Minutes, -nan); - TEST_NAN_HANDLING(absl::Hours, -nan); - -#undef TEST_NAN_HANDLING -} - -TEST(Duration, Range) { - const absl::Duration range = ApproxYears(100 * 1e9); - const absl::Duration range_future = range; - const absl::Duration range_past = -range; - - EXPECT_LT(range_future, absl::InfiniteDuration()); - EXPECT_GT(range_past, -absl::InfiniteDuration()); - - const absl::Duration full_range = range_future - range_past; - EXPECT_GT(full_range, absl::ZeroDuration()); - EXPECT_LT(full_range, absl::InfiniteDuration()); - - const absl::Duration neg_full_range = range_past - range_future; - EXPECT_LT(neg_full_range, absl::ZeroDuration()); - EXPECT_GT(neg_full_range, -absl::InfiniteDuration()); - - EXPECT_LT(neg_full_range, full_range); - EXPECT_EQ(neg_full_range, -full_range); -} - -TEST(Duration, RelationalOperators) { -#define TEST_REL_OPS(UNIT) \ - static_assert(UNIT(2) == UNIT(2), ""); \ - static_assert(UNIT(1) != UNIT(2), ""); \ - static_assert(UNIT(1) < UNIT(2), ""); \ - static_assert(UNIT(3) > UNIT(2), ""); \ - static_assert(UNIT(1) <= UNIT(2), ""); \ - static_assert(UNIT(2) <= UNIT(2), ""); \ - static_assert(UNIT(3) >= UNIT(2), ""); \ - static_assert(UNIT(2) >= UNIT(2), ""); - - TEST_REL_OPS(absl::Nanoseconds); - TEST_REL_OPS(absl::Microseconds); - TEST_REL_OPS(absl::Milliseconds); - TEST_REL_OPS(absl::Seconds); - TEST_REL_OPS(absl::Minutes); - TEST_REL_OPS(absl::Hours); - -#undef TEST_REL_OPS -} - -TEST(Duration, Addition) { -#define TEST_ADD_OPS(UNIT) \ - do { \ - EXPECT_EQ(UNIT(2), UNIT(1) + UNIT(1)); \ - EXPECT_EQ(UNIT(1), UNIT(2) - UNIT(1)); \ - EXPECT_EQ(UNIT(0), UNIT(2) - UNIT(2)); \ - EXPECT_EQ(UNIT(-1), UNIT(1) - UNIT(2)); \ - EXPECT_EQ(UNIT(-2), UNIT(0) - UNIT(2)); \ - EXPECT_EQ(UNIT(-2), UNIT(1) - UNIT(3)); \ - absl::Duration a = UNIT(1); \ - a += UNIT(1); \ - EXPECT_EQ(UNIT(2), a); \ - a -= UNIT(1); \ - EXPECT_EQ(UNIT(1), a); \ - } while (0) - - TEST_ADD_OPS(absl::Nanoseconds); - TEST_ADD_OPS(absl::Microseconds); - TEST_ADD_OPS(absl::Milliseconds); - TEST_ADD_OPS(absl::Seconds); - TEST_ADD_OPS(absl::Minutes); - TEST_ADD_OPS(absl::Hours); - -#undef TEST_ADD_OPS - - EXPECT_EQ(absl::Seconds(2), absl::Seconds(3) - 2 * absl::Milliseconds(500)); - EXPECT_EQ(absl::Seconds(2) + absl::Milliseconds(500), - absl::Seconds(3) - absl::Milliseconds(500)); - - EXPECT_EQ(absl::Seconds(1) + absl::Milliseconds(998), - absl::Milliseconds(999) + absl::Milliseconds(999)); - - EXPECT_EQ(absl::Milliseconds(-1), - absl::Milliseconds(998) - absl::Milliseconds(999)); - - // Tests fractions of a nanoseconds. These are implementation details only. - EXPECT_GT(absl::Nanoseconds(1), absl::Nanoseconds(1) / 2); - EXPECT_EQ(absl::Nanoseconds(1), - absl::Nanoseconds(1) / 2 + absl::Nanoseconds(1) / 2); - EXPECT_GT(absl::Nanoseconds(1) / 4, absl::Nanoseconds(0)); - EXPECT_EQ(absl::Nanoseconds(1) / 8, absl::Nanoseconds(0)); - - // Tests subtraction that will cause wrap around of the rep_lo_ bits. - absl::Duration d_7_5 = absl::Seconds(7) + absl::Milliseconds(500); - absl::Duration d_3_7 = absl::Seconds(3) + absl::Milliseconds(700); - absl::Duration ans_3_8 = absl::Seconds(3) + absl::Milliseconds(800); - EXPECT_EQ(ans_3_8, d_7_5 - d_3_7); - - // Subtracting min_duration - absl::Duration min_dur = absl::Seconds(kint64min); - EXPECT_EQ(absl::Seconds(0), min_dur - min_dur); - EXPECT_EQ(absl::Seconds(kint64max), absl::Seconds(-1) - min_dur); -} - -TEST(Duration, Negation) { - // By storing negations of various values in constexpr variables we - // verify that the initializers are constant expressions. - constexpr absl::Duration negated_zero_duration = -absl::ZeroDuration(); - EXPECT_EQ(negated_zero_duration, absl::ZeroDuration()); - - constexpr absl::Duration negated_infinite_duration = - -absl::InfiniteDuration(); - EXPECT_NE(negated_infinite_duration, absl::InfiniteDuration()); - EXPECT_EQ(-negated_infinite_duration, absl::InfiniteDuration()); - - // The public APIs to check if a duration is infinite depend on using - // -InfiniteDuration(), but we're trying to test operator- here, so we - // need to use the lower-level internal query IsInfiniteDuration. - EXPECT_TRUE( - absl::time_internal::IsInfiniteDuration(negated_infinite_duration)); - - // The largest Duration is kint64max seconds and kTicksPerSecond - 1 ticks. - // Using the absl::time_internal::MakeDuration API is the cleanest way to - // construct that Duration. - constexpr absl::Duration max_duration = absl::time_internal::MakeDuration( - kint64max, absl::time_internal::kTicksPerSecond - 1); - constexpr absl::Duration negated_max_duration = -max_duration; - // The largest negatable value is one tick above the minimum representable; - // it's the negation of max_duration. - constexpr absl::Duration nearly_min_duration = - absl::time_internal::MakeDuration(kint64min, int64_t{1}); - constexpr absl::Duration negated_nearly_min_duration = -nearly_min_duration; - - EXPECT_EQ(negated_max_duration, nearly_min_duration); - EXPECT_EQ(negated_nearly_min_duration, max_duration); - EXPECT_EQ(-(-max_duration), max_duration); - - constexpr absl::Duration min_duration = - absl::time_internal::MakeDuration(kint64min); - constexpr absl::Duration negated_min_duration = -min_duration; - EXPECT_EQ(negated_min_duration, absl::InfiniteDuration()); -} - -TEST(Duration, AbsoluteValue) { - EXPECT_EQ(absl::ZeroDuration(), AbsDuration(absl::ZeroDuration())); - EXPECT_EQ(absl::Seconds(1), AbsDuration(absl::Seconds(1))); - EXPECT_EQ(absl::Seconds(1), AbsDuration(absl::Seconds(-1))); - - EXPECT_EQ(absl::InfiniteDuration(), AbsDuration(absl::InfiniteDuration())); - EXPECT_EQ(absl::InfiniteDuration(), AbsDuration(-absl::InfiniteDuration())); - - absl::Duration max_dur = - absl::Seconds(kint64max) + (absl::Seconds(1) - absl::Nanoseconds(1) / 4); - EXPECT_EQ(max_dur, AbsDuration(max_dur)); - - absl::Duration min_dur = absl::Seconds(kint64min); - EXPECT_EQ(absl::InfiniteDuration(), AbsDuration(min_dur)); - EXPECT_EQ(max_dur, AbsDuration(min_dur + absl::Nanoseconds(1) / 4)); -} - -TEST(Duration, Multiplication) { -#define TEST_MUL_OPS(UNIT) \ - do { \ - EXPECT_EQ(UNIT(5), UNIT(2) * 2.5); \ - EXPECT_EQ(UNIT(2), UNIT(5) / 2.5); \ - EXPECT_EQ(UNIT(-5), UNIT(-2) * 2.5); \ - EXPECT_EQ(UNIT(-5), -UNIT(2) * 2.5); \ - EXPECT_EQ(UNIT(-5), UNIT(2) * -2.5); \ - EXPECT_EQ(UNIT(-2), UNIT(-5) / 2.5); \ - EXPECT_EQ(UNIT(-2), -UNIT(5) / 2.5); \ - EXPECT_EQ(UNIT(-2), UNIT(5) / -2.5); \ - EXPECT_EQ(UNIT(2), UNIT(11) % UNIT(3)); \ - absl::Duration a = UNIT(2); \ - a *= 2.5; \ - EXPECT_EQ(UNIT(5), a); \ - a /= 2.5; \ - EXPECT_EQ(UNIT(2), a); \ - a %= UNIT(1); \ - EXPECT_EQ(UNIT(0), a); \ - absl::Duration big = UNIT(1000000000); \ - big *= 3; \ - big /= 3; \ - EXPECT_EQ(UNIT(1000000000), big); \ - EXPECT_EQ(-UNIT(2), -UNIT(2)); \ - EXPECT_EQ(-UNIT(2), UNIT(2) * -1); \ - EXPECT_EQ(-UNIT(2), -1 * UNIT(2)); \ - EXPECT_EQ(-UNIT(-2), UNIT(2)); \ - EXPECT_EQ(2, UNIT(2) / UNIT(1)); \ - absl::Duration rem; \ - EXPECT_EQ(2, absl::IDivDuration(UNIT(2), UNIT(1), &rem)); \ - EXPECT_EQ(2.0, absl::FDivDuration(UNIT(2), UNIT(1))); \ - } while (0) - - TEST_MUL_OPS(absl::Nanoseconds); - TEST_MUL_OPS(absl::Microseconds); - TEST_MUL_OPS(absl::Milliseconds); - TEST_MUL_OPS(absl::Seconds); - TEST_MUL_OPS(absl::Minutes); - TEST_MUL_OPS(absl::Hours); - -#undef TEST_MUL_OPS - - // Ensures that multiplication and division by 1 with a maxed-out durations - // doesn't lose precision. - absl::Duration max_dur = - absl::Seconds(kint64max) + (absl::Seconds(1) - absl::Nanoseconds(1) / 4); - absl::Duration min_dur = absl::Seconds(kint64min); - EXPECT_EQ(max_dur, max_dur * 1); - EXPECT_EQ(max_dur, max_dur / 1); - EXPECT_EQ(min_dur, min_dur * 1); - EXPECT_EQ(min_dur, min_dur / 1); - - // Tests division on a Duration with a large number of significant digits. - // Tests when the digits span hi and lo as well as only in hi. - absl::Duration sigfigs = absl::Seconds(2000000000) + absl::Nanoseconds(3); - EXPECT_EQ(absl::Seconds(666666666) + absl::Nanoseconds(666666667) + - absl::Nanoseconds(1) / 2, - sigfigs / 3); - sigfigs = absl::Seconds(int64_t{7000000000}); - EXPECT_EQ(absl::Seconds(2333333333) + absl::Nanoseconds(333333333) + - absl::Nanoseconds(1) / 4, - sigfigs / 3); - - EXPECT_EQ(absl::Seconds(7) + absl::Milliseconds(500), absl::Seconds(3) * 2.5); - EXPECT_EQ(absl::Seconds(8) * -1 + absl::Milliseconds(300), - (absl::Seconds(2) + absl::Milliseconds(200)) * -3.5); - EXPECT_EQ(-absl::Seconds(8) + absl::Milliseconds(300), - (absl::Seconds(2) + absl::Milliseconds(200)) * -3.5); - EXPECT_EQ(absl::Seconds(1) + absl::Milliseconds(875), - (absl::Seconds(7) + absl::Milliseconds(500)) / 4); - EXPECT_EQ(absl::Seconds(30), - (absl::Seconds(7) + absl::Milliseconds(500)) / 0.25); - EXPECT_EQ(absl::Seconds(3), - (absl::Seconds(7) + absl::Milliseconds(500)) / 2.5); - - // Tests division remainder. - EXPECT_EQ(absl::Nanoseconds(0), absl::Nanoseconds(7) % absl::Nanoseconds(1)); - EXPECT_EQ(absl::Nanoseconds(0), absl::Nanoseconds(0) % absl::Nanoseconds(10)); - EXPECT_EQ(absl::Nanoseconds(2), absl::Nanoseconds(7) % absl::Nanoseconds(5)); - EXPECT_EQ(absl::Nanoseconds(2), absl::Nanoseconds(2) % absl::Nanoseconds(5)); - - EXPECT_EQ(absl::Nanoseconds(1), absl::Nanoseconds(10) % absl::Nanoseconds(3)); - EXPECT_EQ(absl::Nanoseconds(1), - absl::Nanoseconds(10) % absl::Nanoseconds(-3)); - EXPECT_EQ(absl::Nanoseconds(-1), - absl::Nanoseconds(-10) % absl::Nanoseconds(3)); - EXPECT_EQ(absl::Nanoseconds(-1), - absl::Nanoseconds(-10) % absl::Nanoseconds(-3)); - - EXPECT_EQ(absl::Milliseconds(100), - absl::Seconds(1) % absl::Milliseconds(300)); - EXPECT_EQ( - absl::Milliseconds(300), - (absl::Seconds(3) + absl::Milliseconds(800)) % absl::Milliseconds(500)); - - EXPECT_EQ(absl::Nanoseconds(1), absl::Nanoseconds(1) % absl::Seconds(1)); - EXPECT_EQ(absl::Nanoseconds(-1), absl::Nanoseconds(-1) % absl::Seconds(1)); - EXPECT_EQ(0, absl::Nanoseconds(-1) / absl::Seconds(1)); // Actual -1e-9 - - // Tests identity a = (a/b)*b + a%b -#define TEST_MOD_IDENTITY(a, b) \ - EXPECT_EQ((a), ((a) / (b))*(b) + ((a)%(b))) - - TEST_MOD_IDENTITY(absl::Seconds(0), absl::Seconds(2)); - TEST_MOD_IDENTITY(absl::Seconds(1), absl::Seconds(1)); - TEST_MOD_IDENTITY(absl::Seconds(1), absl::Seconds(2)); - TEST_MOD_IDENTITY(absl::Seconds(2), absl::Seconds(1)); - - TEST_MOD_IDENTITY(absl::Seconds(-2), absl::Seconds(1)); - TEST_MOD_IDENTITY(absl::Seconds(2), absl::Seconds(-1)); - TEST_MOD_IDENTITY(absl::Seconds(-2), absl::Seconds(-1)); - - TEST_MOD_IDENTITY(absl::Nanoseconds(0), absl::Nanoseconds(2)); - TEST_MOD_IDENTITY(absl::Nanoseconds(1), absl::Nanoseconds(1)); - TEST_MOD_IDENTITY(absl::Nanoseconds(1), absl::Nanoseconds(2)); - TEST_MOD_IDENTITY(absl::Nanoseconds(2), absl::Nanoseconds(1)); - - TEST_MOD_IDENTITY(absl::Nanoseconds(-2), absl::Nanoseconds(1)); - TEST_MOD_IDENTITY(absl::Nanoseconds(2), absl::Nanoseconds(-1)); - TEST_MOD_IDENTITY(absl::Nanoseconds(-2), absl::Nanoseconds(-1)); - - // Mixed seconds + subseconds - absl::Duration mixed_a = absl::Seconds(1) + absl::Nanoseconds(2); - absl::Duration mixed_b = absl::Seconds(1) + absl::Nanoseconds(3); - - TEST_MOD_IDENTITY(absl::Seconds(0), mixed_a); - TEST_MOD_IDENTITY(mixed_a, mixed_a); - TEST_MOD_IDENTITY(mixed_a, mixed_b); - TEST_MOD_IDENTITY(mixed_b, mixed_a); - - TEST_MOD_IDENTITY(-mixed_a, mixed_b); - TEST_MOD_IDENTITY(mixed_a, -mixed_b); - TEST_MOD_IDENTITY(-mixed_a, -mixed_b); - -#undef TEST_MOD_IDENTITY -} - -TEST(Duration, Truncation) { - const absl::Duration d = absl::Nanoseconds(1234567890); - const absl::Duration inf = absl::InfiniteDuration(); - for (int unit_sign : {1, -1}) { // sign shouldn't matter - EXPECT_EQ(absl::Nanoseconds(1234567890), - Trunc(d, unit_sign * absl::Nanoseconds(1))); - EXPECT_EQ(absl::Microseconds(1234567), - Trunc(d, unit_sign * absl::Microseconds(1))); - EXPECT_EQ(absl::Milliseconds(1234), - Trunc(d, unit_sign * absl::Milliseconds(1))); - EXPECT_EQ(absl::Seconds(1), Trunc(d, unit_sign * absl::Seconds(1))); - EXPECT_EQ(inf, Trunc(inf, unit_sign * absl::Seconds(1))); - - EXPECT_EQ(absl::Nanoseconds(-1234567890), - Trunc(-d, unit_sign * absl::Nanoseconds(1))); - EXPECT_EQ(absl::Microseconds(-1234567), - Trunc(-d, unit_sign * absl::Microseconds(1))); - EXPECT_EQ(absl::Milliseconds(-1234), - Trunc(-d, unit_sign * absl::Milliseconds(1))); - EXPECT_EQ(absl::Seconds(-1), Trunc(-d, unit_sign * absl::Seconds(1))); - EXPECT_EQ(-inf, Trunc(-inf, unit_sign * absl::Seconds(1))); - } -} - -TEST(Duration, Flooring) { - const absl::Duration d = absl::Nanoseconds(1234567890); - const absl::Duration inf = absl::InfiniteDuration(); - for (int unit_sign : {1, -1}) { // sign shouldn't matter - EXPECT_EQ(absl::Nanoseconds(1234567890), - absl::Floor(d, unit_sign * absl::Nanoseconds(1))); - EXPECT_EQ(absl::Microseconds(1234567), - absl::Floor(d, unit_sign * absl::Microseconds(1))); - EXPECT_EQ(absl::Milliseconds(1234), - absl::Floor(d, unit_sign * absl::Milliseconds(1))); - EXPECT_EQ(absl::Seconds(1), absl::Floor(d, unit_sign * absl::Seconds(1))); - EXPECT_EQ(inf, absl::Floor(inf, unit_sign * absl::Seconds(1))); - - EXPECT_EQ(absl::Nanoseconds(-1234567890), - absl::Floor(-d, unit_sign * absl::Nanoseconds(1))); - EXPECT_EQ(absl::Microseconds(-1234568), - absl::Floor(-d, unit_sign * absl::Microseconds(1))); - EXPECT_EQ(absl::Milliseconds(-1235), - absl::Floor(-d, unit_sign * absl::Milliseconds(1))); - EXPECT_EQ(absl::Seconds(-2), absl::Floor(-d, unit_sign * absl::Seconds(1))); - EXPECT_EQ(-inf, absl::Floor(-inf, unit_sign * absl::Seconds(1))); - } -} - -TEST(Duration, Ceiling) { - const absl::Duration d = absl::Nanoseconds(1234567890); - const absl::Duration inf = absl::InfiniteDuration(); - for (int unit_sign : {1, -1}) { // // sign shouldn't matter - EXPECT_EQ(absl::Nanoseconds(1234567890), - absl::Ceil(d, unit_sign * absl::Nanoseconds(1))); - EXPECT_EQ(absl::Microseconds(1234568), - absl::Ceil(d, unit_sign * absl::Microseconds(1))); - EXPECT_EQ(absl::Milliseconds(1235), - absl::Ceil(d, unit_sign * absl::Milliseconds(1))); - EXPECT_EQ(absl::Seconds(2), absl::Ceil(d, unit_sign * absl::Seconds(1))); - EXPECT_EQ(inf, absl::Ceil(inf, unit_sign * absl::Seconds(1))); - - EXPECT_EQ(absl::Nanoseconds(-1234567890), - absl::Ceil(-d, unit_sign * absl::Nanoseconds(1))); - EXPECT_EQ(absl::Microseconds(-1234567), - absl::Ceil(-d, unit_sign * absl::Microseconds(1))); - EXPECT_EQ(absl::Milliseconds(-1234), - absl::Ceil(-d, unit_sign * absl::Milliseconds(1))); - EXPECT_EQ(absl::Seconds(-1), absl::Ceil(-d, unit_sign * absl::Seconds(1))); - EXPECT_EQ(-inf, absl::Ceil(-inf, unit_sign * absl::Seconds(1))); - } -} - -TEST(Duration, RoundTripUnits) { - const int kRange = 100000; - -#define ROUND_TRIP_UNIT(U, LOW, HIGH) \ - do { \ - for (int64_t i = LOW; i < HIGH; ++i) { \ - absl::Duration d = absl::U(i); \ - if (d == absl::InfiniteDuration()) \ - EXPECT_EQ(kint64max, d / absl::U(1)); \ - else if (d == -absl::InfiniteDuration()) \ - EXPECT_EQ(kint64min, d / absl::U(1)); \ - else \ - EXPECT_EQ(i, absl::U(i) / absl::U(1)); \ - } \ - } while (0) - - ROUND_TRIP_UNIT(Nanoseconds, kint64min, kint64min + kRange); - ROUND_TRIP_UNIT(Nanoseconds, -kRange, kRange); - ROUND_TRIP_UNIT(Nanoseconds, kint64max - kRange, kint64max); - - ROUND_TRIP_UNIT(Microseconds, kint64min, kint64min + kRange); - ROUND_TRIP_UNIT(Microseconds, -kRange, kRange); - ROUND_TRIP_UNIT(Microseconds, kint64max - kRange, kint64max); - - ROUND_TRIP_UNIT(Milliseconds, kint64min, kint64min + kRange); - ROUND_TRIP_UNIT(Milliseconds, -kRange, kRange); - ROUND_TRIP_UNIT(Milliseconds, kint64max - kRange, kint64max); - - ROUND_TRIP_UNIT(Seconds, kint64min, kint64min + kRange); - ROUND_TRIP_UNIT(Seconds, -kRange, kRange); - ROUND_TRIP_UNIT(Seconds, kint64max - kRange, kint64max); - - ROUND_TRIP_UNIT(Minutes, kint64min / 60, kint64min / 60 + kRange); - ROUND_TRIP_UNIT(Minutes, -kRange, kRange); - ROUND_TRIP_UNIT(Minutes, kint64max / 60 - kRange, kint64max / 60); - - ROUND_TRIP_UNIT(Hours, kint64min / 3600, kint64min / 3600 + kRange); - ROUND_TRIP_UNIT(Hours, -kRange, kRange); - ROUND_TRIP_UNIT(Hours, kint64max / 3600 - kRange, kint64max / 3600); - -#undef ROUND_TRIP_UNIT -} - -TEST(Duration, TruncConversions) { - // Tests ToTimespec()/DurationFromTimespec() - const struct { - absl::Duration d; - timespec ts; - } to_ts[] = { - {absl::Seconds(1) + absl::Nanoseconds(1), {1, 1}}, - {absl::Seconds(1) + absl::Nanoseconds(1) / 2, {1, 0}}, - {absl::Seconds(1) + absl::Nanoseconds(0), {1, 0}}, - {absl::Seconds(0) + absl::Nanoseconds(0), {0, 0}}, - {absl::Seconds(0) - absl::Nanoseconds(1) / 2, {0, 0}}, - {absl::Seconds(0) - absl::Nanoseconds(1), {-1, 999999999}}, - {absl::Seconds(-1) + absl::Nanoseconds(1), {-1, 1}}, - {absl::Seconds(-1) + absl::Nanoseconds(1) / 2, {-1, 1}}, - {absl::Seconds(-1) + absl::Nanoseconds(0), {-1, 0}}, - {absl::Seconds(-1) - absl::Nanoseconds(1) / 2, {-1, 0}}, - }; - for (const auto& test : to_ts) { - EXPECT_THAT(absl::ToTimespec(test.d), TimespecMatcher(test.ts)); - } - const struct { - timespec ts; - absl::Duration d; - } from_ts[] = { - {{1, 1}, absl::Seconds(1) + absl::Nanoseconds(1)}, - {{1, 0}, absl::Seconds(1) + absl::Nanoseconds(0)}, - {{0, 0}, absl::Seconds(0) + absl::Nanoseconds(0)}, - {{0, -1}, absl::Seconds(0) - absl::Nanoseconds(1)}, - {{-1, 999999999}, absl::Seconds(0) - absl::Nanoseconds(1)}, - {{-1, 1}, absl::Seconds(-1) + absl::Nanoseconds(1)}, - {{-1, 0}, absl::Seconds(-1) + absl::Nanoseconds(0)}, - {{-1, -1}, absl::Seconds(-1) - absl::Nanoseconds(1)}, - {{-2, 999999999}, absl::Seconds(-1) - absl::Nanoseconds(1)}, - }; - for (const auto& test : from_ts) { - EXPECT_EQ(test.d, absl::DurationFromTimespec(test.ts)); - } - - // Tests ToTimeval()/DurationFromTimeval() (same as timespec above) - const struct { - absl::Duration d; - timeval tv; - } to_tv[] = { - {absl::Seconds(1) + absl::Microseconds(1), {1, 1}}, - {absl::Seconds(1) + absl::Microseconds(1) / 2, {1, 0}}, - {absl::Seconds(1) + absl::Microseconds(0), {1, 0}}, - {absl::Seconds(0) + absl::Microseconds(0), {0, 0}}, - {absl::Seconds(0) - absl::Microseconds(1) / 2, {0, 0}}, - {absl::Seconds(0) - absl::Microseconds(1), {-1, 999999}}, - {absl::Seconds(-1) + absl::Microseconds(1), {-1, 1}}, - {absl::Seconds(-1) + absl::Microseconds(1) / 2, {-1, 1}}, - {absl::Seconds(-1) + absl::Microseconds(0), {-1, 0}}, - {absl::Seconds(-1) - absl::Microseconds(1) / 2, {-1, 0}}, - }; - for (const auto& test : to_tv) { - EXPECT_THAT(absl::ToTimeval(test.d), TimevalMatcher(test.tv)); - } - const struct { - timeval tv; - absl::Duration d; - } from_tv[] = { - {{1, 1}, absl::Seconds(1) + absl::Microseconds(1)}, - {{1, 0}, absl::Seconds(1) + absl::Microseconds(0)}, - {{0, 0}, absl::Seconds(0) + absl::Microseconds(0)}, - {{0, -1}, absl::Seconds(0) - absl::Microseconds(1)}, - {{-1, 999999}, absl::Seconds(0) - absl::Microseconds(1)}, - {{-1, 1}, absl::Seconds(-1) + absl::Microseconds(1)}, - {{-1, 0}, absl::Seconds(-1) + absl::Microseconds(0)}, - {{-1, -1}, absl::Seconds(-1) - absl::Microseconds(1)}, - {{-2, 999999}, absl::Seconds(-1) - absl::Microseconds(1)}, - }; - for (const auto& test : from_tv) { - EXPECT_EQ(test.d, absl::DurationFromTimeval(test.tv)); - } -} - -TEST(Duration, SmallConversions) { - // Special tests for conversions of small durations. - - EXPECT_EQ(absl::ZeroDuration(), absl::Seconds(0)); - // TODO(bww): Is the next one OK? - EXPECT_EQ(absl::ZeroDuration(), absl::Seconds(0.124999999e-9)); - EXPECT_EQ(absl::Nanoseconds(1) / 4, absl::Seconds(0.125e-9)); - EXPECT_EQ(absl::Nanoseconds(1) / 4, absl::Seconds(0.250e-9)); - EXPECT_EQ(absl::Nanoseconds(1) / 2, absl::Seconds(0.375e-9)); - EXPECT_EQ(absl::Nanoseconds(1) / 2, absl::Seconds(0.500e-9)); - EXPECT_EQ(absl::Nanoseconds(3) / 4, absl::Seconds(0.625e-9)); - EXPECT_EQ(absl::Nanoseconds(3) / 4, absl::Seconds(0.750e-9)); - EXPECT_EQ(absl::Nanoseconds(1), absl::Seconds(0.875e-9)); - EXPECT_EQ(absl::Nanoseconds(1), absl::Seconds(1.000e-9)); - - EXPECT_EQ(absl::ZeroDuration(), absl::Seconds(-0.124999999e-9)); - EXPECT_EQ(-absl::Nanoseconds(1) / 4, absl::Seconds(-0.125e-9)); - EXPECT_EQ(-absl::Nanoseconds(1) / 4, absl::Seconds(-0.250e-9)); - EXPECT_EQ(-absl::Nanoseconds(1) / 2, absl::Seconds(-0.375e-9)); - EXPECT_EQ(-absl::Nanoseconds(1) / 2, absl::Seconds(-0.500e-9)); - EXPECT_EQ(-absl::Nanoseconds(3) / 4, absl::Seconds(-0.625e-9)); - EXPECT_EQ(-absl::Nanoseconds(3) / 4, absl::Seconds(-0.750e-9)); - EXPECT_EQ(-absl::Nanoseconds(1), absl::Seconds(-0.875e-9)); - EXPECT_EQ(-absl::Nanoseconds(1), absl::Seconds(-1.000e-9)); - - timespec ts; - ts.tv_sec = 0; - ts.tv_nsec = 0; - EXPECT_THAT(ToTimespec(absl::Nanoseconds(0)), TimespecMatcher(ts)); - // TODO(bww): Are the next three OK? - EXPECT_THAT(ToTimespec(absl::Nanoseconds(1) / 4), TimespecMatcher(ts)); - EXPECT_THAT(ToTimespec(absl::Nanoseconds(2) / 4), TimespecMatcher(ts)); - EXPECT_THAT(ToTimespec(absl::Nanoseconds(3) / 4), TimespecMatcher(ts)); - ts.tv_nsec = 1; - EXPECT_THAT(ToTimespec(absl::Nanoseconds(4) / 4), TimespecMatcher(ts)); - EXPECT_THAT(ToTimespec(absl::Nanoseconds(5) / 4), TimespecMatcher(ts)); - EXPECT_THAT(ToTimespec(absl::Nanoseconds(6) / 4), TimespecMatcher(ts)); - EXPECT_THAT(ToTimespec(absl::Nanoseconds(7) / 4), TimespecMatcher(ts)); - ts.tv_nsec = 2; - EXPECT_THAT(ToTimespec(absl::Nanoseconds(8) / 4), TimespecMatcher(ts)); - - timeval tv; - tv.tv_sec = 0; - tv.tv_usec = 0; - EXPECT_THAT(ToTimeval(absl::Nanoseconds(0)), TimevalMatcher(tv)); - // TODO(bww): Is the next one OK? - EXPECT_THAT(ToTimeval(absl::Nanoseconds(999)), TimevalMatcher(tv)); - tv.tv_usec = 1; - EXPECT_THAT(ToTimeval(absl::Nanoseconds(1000)), TimevalMatcher(tv)); - EXPECT_THAT(ToTimeval(absl::Nanoseconds(1999)), TimevalMatcher(tv)); - tv.tv_usec = 2; - EXPECT_THAT(ToTimeval(absl::Nanoseconds(2000)), TimevalMatcher(tv)); -} - -void VerifySameAsMul(double time_as_seconds, int* const misses) { - auto direct_seconds = absl::Seconds(time_as_seconds); - auto mul_by_one_second = time_as_seconds * absl::Seconds(1); - if (direct_seconds != mul_by_one_second) { - if (*misses > 10) return; - ASSERT_LE(++(*misses), 10) << "Too many errors, not reporting more."; - EXPECT_EQ(direct_seconds, mul_by_one_second) - << "given double time_as_seconds = " << std::setprecision(17) - << time_as_seconds; - } -} - -// For a variety of interesting durations, we find the exact point -// where one double converts to that duration, and the very next double -// converts to the next duration. For both of those points, verify that -// Seconds(point) returns the same duration as point * Seconds(1.0) -TEST(Duration, ToDoubleSecondsCheckEdgeCases) { - constexpr uint32_t kTicksPerSecond = absl::time_internal::kTicksPerSecond; - constexpr auto duration_tick = absl::time_internal::MakeDuration(0, 1u); - int misses = 0; - for (int64_t seconds = 0; seconds < 99; ++seconds) { - uint32_t tick_vals[] = {0, +999, +999999, +999999999, kTicksPerSecond - 1, - 0, 1000, 1000000, 1000000000, kTicksPerSecond, - 1, 1001, 1000001, 1000000001, kTicksPerSecond + 1, - 2, 1002, 1000002, 1000000002, kTicksPerSecond + 2, - 3, 1003, 1000003, 1000000003, kTicksPerSecond + 3, - 4, 1004, 1000004, 1000000004, kTicksPerSecond + 4, - 5, 6, 7, 8, 9}; - for (uint32_t ticks : tick_vals) { - absl::Duration s_plus_t = absl::Seconds(seconds) + ticks * duration_tick; - for (absl::Duration d : {s_plus_t, -s_plus_t}) { - absl::Duration after_d = d + duration_tick; - EXPECT_NE(d, after_d); - EXPECT_EQ(after_d - d, duration_tick); - - double low_edge = ToDoubleSeconds(d); - EXPECT_EQ(d, absl::Seconds(low_edge)); - - double high_edge = ToDoubleSeconds(after_d); - EXPECT_EQ(after_d, absl::Seconds(high_edge)); - - for (;;) { - double midpoint = low_edge + (high_edge - low_edge) / 2; - if (midpoint == low_edge || midpoint == high_edge) break; - absl::Duration mid_duration = absl::Seconds(midpoint); - if (mid_duration == d) { - low_edge = midpoint; - } else { - EXPECT_EQ(mid_duration, after_d); - high_edge = midpoint; - } - } - // Now low_edge is the highest double that converts to Duration d, - // and high_edge is the lowest double that converts to Duration after_d. - VerifySameAsMul(low_edge, &misses); - VerifySameAsMul(high_edge, &misses); - } - } - } -} - -TEST(Duration, ToDoubleSecondsCheckRandom) { - std::random_device rd; - std::seed_seq seed({rd(), rd(), rd(), rd(), rd(), rd(), rd(), rd()}); - std::mt19937_64 gen(seed); - // We want doubles distributed from 1/8ns up to 2^63, where - // as many values are tested from 1ns to 2ns as from 1sec to 2sec, - // so even distribute along a log-scale of those values, and - // exponentiate before using them. (9.223377e+18 is just slightly - // out of bounds for absl::Duration.) - std::uniform_real_distribution<double> uniform(std::log(0.125e-9), - std::log(9.223377e+18)); - int misses = 0; - for (int i = 0; i < 1000000; ++i) { - double d = std::exp(uniform(gen)); - VerifySameAsMul(d, &misses); - VerifySameAsMul(-d, &misses); - } -} - -TEST(Duration, ConversionSaturation) { - absl::Duration d; - - 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; - d = absl::DurationFromTimeval(tv); - tv = ToTimeval(d); - EXPECT_EQ(max_timeval_sec, tv.tv_sec); - EXPECT_EQ(999998, tv.tv_usec); - d += absl::Microseconds(1); - tv = ToTimeval(d); - EXPECT_EQ(max_timeval_sec, tv.tv_sec); - EXPECT_EQ(999999, tv.tv_usec); - d += absl::Microseconds(1); // no effect - tv = ToTimeval(d); - EXPECT_EQ(max_timeval_sec, tv.tv_sec); - EXPECT_EQ(999999, tv.tv_usec); - - tv.tv_sec = min_timeval_sec; - tv.tv_usec = 1; - d = absl::DurationFromTimeval(tv); - tv = ToTimeval(d); - EXPECT_EQ(min_timeval_sec, tv.tv_sec); - EXPECT_EQ(1, tv.tv_usec); - d -= absl::Microseconds(1); - tv = ToTimeval(d); - EXPECT_EQ(min_timeval_sec, tv.tv_sec); - EXPECT_EQ(0, tv.tv_usec); - d -= absl::Microseconds(1); // no effect - tv = ToTimeval(d); - 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; - d = absl::DurationFromTimespec(ts); - ts = absl::ToTimespec(d); - EXPECT_EQ(max_timespec_sec, ts.tv_sec); - EXPECT_EQ(999999998, ts.tv_nsec); - d += absl::Nanoseconds(1); - ts = absl::ToTimespec(d); - EXPECT_EQ(max_timespec_sec, ts.tv_sec); - EXPECT_EQ(999999999, ts.tv_nsec); - d += absl::Nanoseconds(1); // no effect - ts = absl::ToTimespec(d); - EXPECT_EQ(max_timespec_sec, ts.tv_sec); - EXPECT_EQ(999999999, ts.tv_nsec); - - ts.tv_sec = min_timespec_sec; - ts.tv_nsec = 1; - d = absl::DurationFromTimespec(ts); - ts = absl::ToTimespec(d); - EXPECT_EQ(min_timespec_sec, ts.tv_sec); - EXPECT_EQ(1, ts.tv_nsec); - d -= absl::Nanoseconds(1); - ts = absl::ToTimespec(d); - EXPECT_EQ(min_timespec_sec, ts.tv_sec); - EXPECT_EQ(0, ts.tv_nsec); - d -= absl::Nanoseconds(1); // no effect - ts = absl::ToTimespec(d); - EXPECT_EQ(min_timespec_sec, ts.tv_sec); - EXPECT_EQ(0, ts.tv_nsec); -} - -TEST(Duration, FormatDuration) { - // Example from Go's docs. - EXPECT_EQ("72h3m0.5s", - absl::FormatDuration(absl::Hours(72) + absl::Minutes(3) + - absl::Milliseconds(500))); - // Go's largest time: 2540400h10m10.000000000s - EXPECT_EQ("2540400h10m10s", - absl::FormatDuration(absl::Hours(2540400) + absl::Minutes(10) + - absl::Seconds(10))); - - EXPECT_EQ("0", absl::FormatDuration(absl::ZeroDuration())); - EXPECT_EQ("0", absl::FormatDuration(absl::Seconds(0))); - EXPECT_EQ("0", absl::FormatDuration(absl::Nanoseconds(0))); - - EXPECT_EQ("1ns", absl::FormatDuration(absl::Nanoseconds(1))); - EXPECT_EQ("1us", absl::FormatDuration(absl::Microseconds(1))); - EXPECT_EQ("1ms", absl::FormatDuration(absl::Milliseconds(1))); - EXPECT_EQ("1s", absl::FormatDuration(absl::Seconds(1))); - EXPECT_EQ("1m", absl::FormatDuration(absl::Minutes(1))); - EXPECT_EQ("1h", absl::FormatDuration(absl::Hours(1))); - - EXPECT_EQ("1h1m", absl::FormatDuration(absl::Hours(1) + absl::Minutes(1))); - EXPECT_EQ("1h1s", absl::FormatDuration(absl::Hours(1) + absl::Seconds(1))); - EXPECT_EQ("1m1s", absl::FormatDuration(absl::Minutes(1) + absl::Seconds(1))); - - EXPECT_EQ("1h0.25s", - absl::FormatDuration(absl::Hours(1) + absl::Milliseconds(250))); - EXPECT_EQ("1m0.25s", - absl::FormatDuration(absl::Minutes(1) + absl::Milliseconds(250))); - EXPECT_EQ("1h1m0.25s", - absl::FormatDuration(absl::Hours(1) + absl::Minutes(1) + - absl::Milliseconds(250))); - EXPECT_EQ("1h0.0005s", - absl::FormatDuration(absl::Hours(1) + absl::Microseconds(500))); - EXPECT_EQ("1h0.0000005s", - absl::FormatDuration(absl::Hours(1) + absl::Nanoseconds(500))); - - // Subsecond special case. - EXPECT_EQ("1.5ns", absl::FormatDuration(absl::Nanoseconds(1) + - absl::Nanoseconds(1) / 2)); - EXPECT_EQ("1.25ns", absl::FormatDuration(absl::Nanoseconds(1) + - absl::Nanoseconds(1) / 4)); - EXPECT_EQ("1ns", absl::FormatDuration(absl::Nanoseconds(1) + - absl::Nanoseconds(1) / 9)); - EXPECT_EQ("1.2us", absl::FormatDuration(absl::Microseconds(1) + - absl::Nanoseconds(200))); - EXPECT_EQ("1.2ms", absl::FormatDuration(absl::Milliseconds(1) + - absl::Microseconds(200))); - EXPECT_EQ("1.0002ms", absl::FormatDuration(absl::Milliseconds(1) + - absl::Nanoseconds(200))); - EXPECT_EQ("1.00001ms", absl::FormatDuration(absl::Milliseconds(1) + - absl::Nanoseconds(10))); - EXPECT_EQ("1.000001ms", - absl::FormatDuration(absl::Milliseconds(1) + absl::Nanoseconds(1))); - - // Negative durations. - EXPECT_EQ("-1ns", absl::FormatDuration(absl::Nanoseconds(-1))); - EXPECT_EQ("-1us", absl::FormatDuration(absl::Microseconds(-1))); - EXPECT_EQ("-1ms", absl::FormatDuration(absl::Milliseconds(-1))); - EXPECT_EQ("-1s", absl::FormatDuration(absl::Seconds(-1))); - EXPECT_EQ("-1m", absl::FormatDuration(absl::Minutes(-1))); - EXPECT_EQ("-1h", absl::FormatDuration(absl::Hours(-1))); - - EXPECT_EQ("-1h1m", - absl::FormatDuration(-(absl::Hours(1) + absl::Minutes(1)))); - EXPECT_EQ("-1h1s", - absl::FormatDuration(-(absl::Hours(1) + absl::Seconds(1)))); - EXPECT_EQ("-1m1s", - absl::FormatDuration(-(absl::Minutes(1) + absl::Seconds(1)))); - - EXPECT_EQ("-1ns", absl::FormatDuration(absl::Nanoseconds(-1))); - EXPECT_EQ("-1.2us", absl::FormatDuration( - -(absl::Microseconds(1) + absl::Nanoseconds(200)))); - EXPECT_EQ("-1.2ms", absl::FormatDuration( - -(absl::Milliseconds(1) + absl::Microseconds(200)))); - EXPECT_EQ("-1.0002ms", absl::FormatDuration(-(absl::Milliseconds(1) + - absl::Nanoseconds(200)))); - EXPECT_EQ("-1.00001ms", absl::FormatDuration(-(absl::Milliseconds(1) + - absl::Nanoseconds(10)))); - EXPECT_EQ("-1.000001ms", absl::FormatDuration(-(absl::Milliseconds(1) + - absl::Nanoseconds(1)))); - - // - // Interesting corner cases. - // - - const absl::Duration qns = absl::Nanoseconds(1) / 4; - const absl::Duration max_dur = - absl::Seconds(kint64max) + (absl::Seconds(1) - qns); - const absl::Duration min_dur = absl::Seconds(kint64min); - - EXPECT_EQ("0.25ns", absl::FormatDuration(qns)); - EXPECT_EQ("-0.25ns", absl::FormatDuration(-qns)); - EXPECT_EQ("2562047788015215h30m7.99999999975s", - absl::FormatDuration(max_dur)); - EXPECT_EQ("-2562047788015215h30m8s", absl::FormatDuration(min_dur)); - - // Tests printing full precision from units that print using FDivDuration - EXPECT_EQ("55.00000000025s", absl::FormatDuration(absl::Seconds(55) + qns)); - EXPECT_EQ("55.00000025ms", - absl::FormatDuration(absl::Milliseconds(55) + qns)); - EXPECT_EQ("55.00025us", absl::FormatDuration(absl::Microseconds(55) + qns)); - EXPECT_EQ("55.25ns", absl::FormatDuration(absl::Nanoseconds(55) + qns)); - - // Formatting infinity - EXPECT_EQ("inf", absl::FormatDuration(absl::InfiniteDuration())); - EXPECT_EQ("-inf", absl::FormatDuration(-absl::InfiniteDuration())); - - // Formatting approximately +/- 100 billion years - const absl::Duration huge_range = ApproxYears(100000000000); - EXPECT_EQ("876000000000000h", absl::FormatDuration(huge_range)); - EXPECT_EQ("-876000000000000h", absl::FormatDuration(-huge_range)); - - EXPECT_EQ("876000000000000h0.999999999s", - absl::FormatDuration(huge_range + - (absl::Seconds(1) - absl::Nanoseconds(1)))); - EXPECT_EQ("876000000000000h0.9999999995s", - absl::FormatDuration( - huge_range + (absl::Seconds(1) - absl::Nanoseconds(1) / 2))); - EXPECT_EQ("876000000000000h0.99999999975s", - absl::FormatDuration( - huge_range + (absl::Seconds(1) - absl::Nanoseconds(1) / 4))); - - EXPECT_EQ("-876000000000000h0.999999999s", - absl::FormatDuration(-huge_range - - (absl::Seconds(1) - absl::Nanoseconds(1)))); - EXPECT_EQ("-876000000000000h0.9999999995s", - absl::FormatDuration( - -huge_range - (absl::Seconds(1) - absl::Nanoseconds(1) / 2))); - EXPECT_EQ("-876000000000000h0.99999999975s", - absl::FormatDuration( - -huge_range - (absl::Seconds(1) - absl::Nanoseconds(1) / 4))); -} - -TEST(Duration, ParseDuration) { - absl::Duration d; - - // No specified unit. Should only work for zero and infinity. - EXPECT_TRUE(absl::ParseDuration("0", &d)); - EXPECT_EQ(absl::ZeroDuration(), d); - EXPECT_TRUE(absl::ParseDuration("+0", &d)); - EXPECT_EQ(absl::ZeroDuration(), d); - EXPECT_TRUE(absl::ParseDuration("-0", &d)); - EXPECT_EQ(absl::ZeroDuration(), d); - - EXPECT_TRUE(absl::ParseDuration("inf", &d)); - EXPECT_EQ(absl::InfiniteDuration(), d); - EXPECT_TRUE(absl::ParseDuration("+inf", &d)); - EXPECT_EQ(absl::InfiniteDuration(), d); - EXPECT_TRUE(absl::ParseDuration("-inf", &d)); - EXPECT_EQ(-absl::InfiniteDuration(), d); - EXPECT_FALSE(absl::ParseDuration("infBlah", &d)); - - // Illegal input forms. - EXPECT_FALSE(absl::ParseDuration("", &d)); - EXPECT_FALSE(absl::ParseDuration("0.0", &d)); - EXPECT_FALSE(absl::ParseDuration(".0", &d)); - EXPECT_FALSE(absl::ParseDuration(".", &d)); - EXPECT_FALSE(absl::ParseDuration("01", &d)); - EXPECT_FALSE(absl::ParseDuration("1", &d)); - EXPECT_FALSE(absl::ParseDuration("-1", &d)); - EXPECT_FALSE(absl::ParseDuration("2", &d)); - EXPECT_FALSE(absl::ParseDuration("2 s", &d)); - EXPECT_FALSE(absl::ParseDuration(".s", &d)); - EXPECT_FALSE(absl::ParseDuration("-.s", &d)); - EXPECT_FALSE(absl::ParseDuration("s", &d)); - EXPECT_FALSE(absl::ParseDuration(" 2s", &d)); - EXPECT_FALSE(absl::ParseDuration("2s ", &d)); - EXPECT_FALSE(absl::ParseDuration(" 2s ", &d)); - EXPECT_FALSE(absl::ParseDuration("2mt", &d)); - EXPECT_FALSE(absl::ParseDuration("1e3s", &d)); - - // One unit type. - EXPECT_TRUE(absl::ParseDuration("1ns", &d)); - EXPECT_EQ(absl::Nanoseconds(1), d); - EXPECT_TRUE(absl::ParseDuration("1us", &d)); - EXPECT_EQ(absl::Microseconds(1), d); - EXPECT_TRUE(absl::ParseDuration("1ms", &d)); - EXPECT_EQ(absl::Milliseconds(1), d); - EXPECT_TRUE(absl::ParseDuration("1s", &d)); - EXPECT_EQ(absl::Seconds(1), d); - EXPECT_TRUE(absl::ParseDuration("2m", &d)); - EXPECT_EQ(absl::Minutes(2), d); - EXPECT_TRUE(absl::ParseDuration("2h", &d)); - EXPECT_EQ(absl::Hours(2), d); - - // Huge counts of a unit. - EXPECT_TRUE(absl::ParseDuration("9223372036854775807us", &d)); - EXPECT_EQ(absl::Microseconds(9223372036854775807), d); - EXPECT_TRUE(absl::ParseDuration("-9223372036854775807us", &d)); - EXPECT_EQ(absl::Microseconds(-9223372036854775807), d); - - // Multiple units. - EXPECT_TRUE(absl::ParseDuration("2h3m4s", &d)); - EXPECT_EQ(absl::Hours(2) + absl::Minutes(3) + absl::Seconds(4), d); - EXPECT_TRUE(absl::ParseDuration("3m4s5us", &d)); - EXPECT_EQ(absl::Minutes(3) + absl::Seconds(4) + absl::Microseconds(5), d); - EXPECT_TRUE(absl::ParseDuration("2h3m4s5ms6us7ns", &d)); - EXPECT_EQ(absl::Hours(2) + absl::Minutes(3) + absl::Seconds(4) + - absl::Milliseconds(5) + absl::Microseconds(6) + - absl::Nanoseconds(7), - d); - - // Multiple units out of order. - EXPECT_TRUE(absl::ParseDuration("2us3m4s5h", &d)); - EXPECT_EQ(absl::Hours(5) + absl::Minutes(3) + absl::Seconds(4) + - absl::Microseconds(2), - d); - - // Fractional values of units. - EXPECT_TRUE(absl::ParseDuration("1.5ns", &d)); - EXPECT_EQ(1.5 * absl::Nanoseconds(1), d); - EXPECT_TRUE(absl::ParseDuration("1.5us", &d)); - EXPECT_EQ(1.5 * absl::Microseconds(1), d); - EXPECT_TRUE(absl::ParseDuration("1.5ms", &d)); - EXPECT_EQ(1.5 * absl::Milliseconds(1), d); - EXPECT_TRUE(absl::ParseDuration("1.5s", &d)); - EXPECT_EQ(1.5 * absl::Seconds(1), d); - EXPECT_TRUE(absl::ParseDuration("1.5m", &d)); - EXPECT_EQ(1.5 * absl::Minutes(1), d); - EXPECT_TRUE(absl::ParseDuration("1.5h", &d)); - EXPECT_EQ(1.5 * absl::Hours(1), d); - - // Huge fractional counts of a unit. - EXPECT_TRUE(absl::ParseDuration("0.4294967295s", &d)); - EXPECT_EQ(absl::Nanoseconds(429496729) + absl::Nanoseconds(1) / 2, d); - EXPECT_TRUE(absl::ParseDuration("0.429496729501234567890123456789s", &d)); - EXPECT_EQ(absl::Nanoseconds(429496729) + absl::Nanoseconds(1) / 2, d); - - // Negative durations. - EXPECT_TRUE(absl::ParseDuration("-1s", &d)); - EXPECT_EQ(absl::Seconds(-1), d); - EXPECT_TRUE(absl::ParseDuration("-1m", &d)); - EXPECT_EQ(absl::Minutes(-1), d); - EXPECT_TRUE(absl::ParseDuration("-1h", &d)); - EXPECT_EQ(absl::Hours(-1), d); - - EXPECT_TRUE(absl::ParseDuration("-1h2s", &d)); - EXPECT_EQ(-(absl::Hours(1) + absl::Seconds(2)), d); - EXPECT_FALSE(absl::ParseDuration("1h-2s", &d)); - EXPECT_FALSE(absl::ParseDuration("-1h-2s", &d)); - EXPECT_FALSE(absl::ParseDuration("-1h -2s", &d)); -} - -TEST(Duration, FormatParseRoundTrip) { -#define TEST_PARSE_ROUNDTRIP(d) \ - do { \ - std::string s = absl::FormatDuration(d); \ - absl::Duration dur; \ - EXPECT_TRUE(absl::ParseDuration(s, &dur)); \ - EXPECT_EQ(d, dur); \ - } while (0) - - TEST_PARSE_ROUNDTRIP(absl::Nanoseconds(1)); - TEST_PARSE_ROUNDTRIP(absl::Microseconds(1)); - TEST_PARSE_ROUNDTRIP(absl::Milliseconds(1)); - TEST_PARSE_ROUNDTRIP(absl::Seconds(1)); - TEST_PARSE_ROUNDTRIP(absl::Minutes(1)); - TEST_PARSE_ROUNDTRIP(absl::Hours(1)); - TEST_PARSE_ROUNDTRIP(absl::Hours(1) + absl::Nanoseconds(2)); - - TEST_PARSE_ROUNDTRIP(absl::Nanoseconds(-1)); - TEST_PARSE_ROUNDTRIP(absl::Microseconds(-1)); - TEST_PARSE_ROUNDTRIP(absl::Milliseconds(-1)); - TEST_PARSE_ROUNDTRIP(absl::Seconds(-1)); - TEST_PARSE_ROUNDTRIP(absl::Minutes(-1)); - TEST_PARSE_ROUNDTRIP(absl::Hours(-1)); - - TEST_PARSE_ROUNDTRIP(absl::Hours(-1) + absl::Nanoseconds(2)); - TEST_PARSE_ROUNDTRIP(absl::Hours(1) + absl::Nanoseconds(-2)); - TEST_PARSE_ROUNDTRIP(absl::Hours(-1) + absl::Nanoseconds(-2)); - - TEST_PARSE_ROUNDTRIP(absl::Nanoseconds(1) + - absl::Nanoseconds(1) / 4); // 1.25ns - - const absl::Duration huge_range = ApproxYears(100000000000); - TEST_PARSE_ROUNDTRIP(huge_range); - TEST_PARSE_ROUNDTRIP(huge_range + (absl::Seconds(1) - absl::Nanoseconds(1))); - -#undef TEST_PARSE_ROUNDTRIP -} - -} // namespace |