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Posted to commits@marmotta.apache.org by ja...@apache.org on 2018/06/18 18:35:38 UTC
[19/62] [abbrv] [partial] marmotta git commit: * Replace gtest with
upstream version,
including LICENSE header. * Include absl library for faster and safer string
operations. * Update license headers where needed. * Removed custom code
replaced by absl.
http://git-wip-us.apache.org/repos/asf/marmotta/blob/0eb556da/libraries/ostrich/backend/3rdparty/abseil/absl/time/duration_test.cc
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diff --git a/libraries/ostrich/backend/3rdparty/abseil/absl/time/duration_test.cc b/libraries/ostrich/backend/3rdparty/abseil/absl/time/duration_test.cc
new file mode 100644
index 0000000..7918e16
--- /dev/null
+++ b/libraries/ostrich/backend/3rdparty/abseil/absl/time/duration_test.cc
@@ -0,0 +1,1688 @@
+// 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
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <chrono> // NOLINT(build/c++11)
+#include <cmath>
+#include <cstdint>
+#include <ctime>
+#include <limits>
+#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, 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); \
+ const absl::Duration z = absl::ZeroDuration(); \
+ const absl::Duration inf = absl::InfiniteDuration(); \
+ const 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));
+}
+
+// Used for testing the factory overloads.
+template <typename T>
+struct ImplicitlyConvertible {
+ T n_;
+ explicit ImplicitlyConvertible(T n) : n_(n) {}
+ // Marking this conversion operator with 'explicit' will cause the test to
+ // fail (as desired).
+ operator T() { return n_; }
+};
+
+TEST(Duration, FactoryOverloads) {
+#define TEST_FACTORY_OVERLOADS(NAME) \
+ 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(1, NAME(ImplicitlyConvertible<int8_t>(1)) / NAME(1)); \
+ EXPECT_EQ(1, NAME(ImplicitlyConvertible<int16_t>(1)) / NAME(1)); \
+ EXPECT_EQ(1, NAME(ImplicitlyConvertible<int32_t>(1)) / NAME(1)); \
+ EXPECT_EQ(1, NAME(ImplicitlyConvertible<int64_t>(1)) / NAME(1)); \
+ EXPECT_EQ(1, NAME(ImplicitlyConvertible<uint8_t>(1)) / NAME(1)); \
+ EXPECT_EQ(1, NAME(ImplicitlyConvertible<uint16_t>(1)) / NAME(1)); \
+ EXPECT_EQ(1, NAME(ImplicitlyConvertible<uint32_t>(1)) / NAME(1)); \
+ EXPECT_EQ(1, NAME(ImplicitlyConvertible<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();
+
+ // IEEE 754 behavior
+ double z = 0.0, two = 2.0;
+ EXPECT_TRUE(std::isinf(two / z));
+ EXPECT_TRUE(std::isnan(z / z)); // We'll return inf
+
+ // 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, 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(7000000000LL);
+ 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));
+
+ 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));
+}
+
+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
http://git-wip-us.apache.org/repos/asf/marmotta/blob/0eb556da/libraries/ostrich/backend/3rdparty/abseil/absl/time/format.cc
----------------------------------------------------------------------
diff --git a/libraries/ostrich/backend/3rdparty/abseil/absl/time/format.cc b/libraries/ostrich/backend/3rdparty/abseil/absl/time/format.cc
new file mode 100644
index 0000000..5dc01bd
--- /dev/null
+++ b/libraries/ostrich/backend/3rdparty/abseil/absl/time/format.cc
@@ -0,0 +1,142 @@
+// 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
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <string.h>
+#include <cctype>
+#include <cstdint>
+
+#include "absl/time/internal/cctz/include/cctz/time_zone.h"
+#include "absl/time/time.h"
+
+namespace cctz = absl::time_internal::cctz;
+
+namespace absl {
+
+extern const char RFC3339_full[] = "%Y-%m-%dT%H:%M:%E*S%Ez";
+extern const char RFC3339_sec[] = "%Y-%m-%dT%H:%M:%S%Ez";
+
+extern const char RFC1123_full[] = "%a, %d %b %E4Y %H:%M:%S %z";
+extern const char RFC1123_no_wday[] = "%d %b %E4Y %H:%M:%S %z";
+
+namespace {
+
+const char kInfiniteFutureStr[] = "infinite-future";
+const char kInfinitePastStr[] = "infinite-past";
+
+using cctz_sec = cctz::time_point<cctz::sys_seconds>;
+using cctz_fem = cctz::detail::femtoseconds;
+struct cctz_parts {
+ cctz_sec sec;
+ cctz_fem fem;
+};
+
+inline cctz_sec unix_epoch() {
+ return std::chrono::time_point_cast<cctz::sys_seconds>(
+ std::chrono::system_clock::from_time_t(0));
+}
+
+// Splits a Time into seconds and femtoseconds, which can be used with CCTZ.
+// Requires that 't' is finite. See duration.cc for details about rep_hi and
+// rep_lo.
+cctz_parts Split(absl::Time t) {
+ const auto d = time_internal::ToUnixDuration(t);
+ const int64_t rep_hi = time_internal::GetRepHi(d);
+ const int64_t rep_lo = time_internal::GetRepLo(d);
+ const auto sec = unix_epoch() + cctz::sys_seconds(rep_hi);
+ const auto fem = cctz_fem(rep_lo * (1000 * 1000 / 4));
+ return {sec, fem};
+}
+
+// Joins the given seconds and femtoseconds into a Time. See duration.cc for
+// details about rep_hi and rep_lo.
+absl::Time Join(const cctz_parts& parts) {
+ const int64_t rep_hi = (parts.sec - unix_epoch()).count();
+ const uint32_t rep_lo = parts.fem.count() / (1000 * 1000 / 4);
+ const auto d = time_internal::MakeDuration(rep_hi, rep_lo);
+ return time_internal::FromUnixDuration(d);
+}
+
+} // namespace
+
+std::string FormatTime(const std::string& format, absl::Time t, absl::TimeZone tz) {
+ if (t == absl::InfiniteFuture()) return kInfiniteFutureStr;
+ if (t == absl::InfinitePast()) return kInfinitePastStr;
+ const auto parts = Split(t);
+ return cctz::detail::format(format, parts.sec, parts.fem,
+ cctz::time_zone(tz));
+}
+
+std::string FormatTime(absl::Time t, absl::TimeZone tz) {
+ return FormatTime(RFC3339_full, t, tz);
+}
+
+std::string FormatTime(absl::Time t) {
+ return absl::FormatTime(RFC3339_full, t, absl::LocalTimeZone());
+}
+
+bool ParseTime(const std::string& format, const std::string& input, absl::Time* time,
+ std::string* err) {
+ return absl::ParseTime(format, input, absl::UTCTimeZone(), time, err);
+}
+
+// If the input std::string does not contain an explicit UTC offset, interpret
+// the fields with respect to the given TimeZone.
+bool ParseTime(const std::string& format, const std::string& input, absl::TimeZone tz,
+ absl::Time* time, std::string* err) {
+ const char* data = input.c_str();
+ while (std::isspace(*data)) ++data;
+
+ size_t inf_size = strlen(kInfiniteFutureStr);
+ if (strncmp(data, kInfiniteFutureStr, inf_size) == 0) {
+ const char* new_data = data + inf_size;
+ while (std::isspace(*new_data)) ++new_data;
+ if (*new_data == '\0') {
+ *time = InfiniteFuture();
+ return true;
+ }
+ }
+
+ inf_size = strlen(kInfinitePastStr);
+ if (strncmp(data, kInfinitePastStr, inf_size) == 0) {
+ const char* new_data = data + inf_size;
+ while (std::isspace(*new_data)) ++new_data;
+ if (*new_data == '\0') {
+ *time = InfinitePast();
+ return true;
+ }
+ }
+
+ std::string error;
+ cctz_parts parts;
+ const bool b = cctz::detail::parse(format, input, cctz::time_zone(tz),
+ &parts.sec, &parts.fem, &error);
+ if (b) {
+ *time = Join(parts);
+ } else if (err != nullptr) {
+ *err = error;
+ }
+ return b;
+}
+
+// TODO(absl-team): Remove once dependencies are removed.
+// Functions required to support absl::Time flags.
+bool ParseFlag(const std::string& text, absl::Time* t, std::string* error) {
+ return absl::ParseTime(RFC3339_full, text, absl::UTCTimeZone(), t, error);
+}
+
+std::string UnparseFlag(absl::Time t) {
+ return absl::FormatTime(RFC3339_full, t, absl::UTCTimeZone());
+}
+
+} // namespace absl