chore(3p/abseil_cpp): unvendor abseil_cpp r/3786

we weren't actually using these sources anymore, okay?

Change-Id: If701571d9716de308d3512e1eb22c35db0877a66
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5248
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>
Autosubmit: tazjin <tazjin@tvl.su>

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 4d85a2c4f455..000000000000
--- 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