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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
commit | 19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch) | |
tree | 42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/test/common/test_time.cc | |
parent | Initial commit. (diff) | |
download | ceph-upstream.tar.xz ceph-upstream.zip |
Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/common/test_time.cc')
-rw-r--r-- | src/test/common/test_time.cc | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/src/test/common/test_time.cc b/src/test/common/test_time.cc new file mode 100644 index 000000000..3054aa50e --- /dev/null +++ b/src/test/common/test_time.cc @@ -0,0 +1,234 @@ + +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab +/* + * Ceph - scalable distributed file system + * + * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net> + * + * This is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2.1, as published by the Free Software + * Foundation. See file COPYING. + * + */ + +#include <ctime> + +#include "common/ceph_time.h" +#include "include/rados.h" +#include "gtest/gtest.h" +#include "include/stringify.h" + + +using ceph::real_clock; +using ceph::real_time; + +using ceph::real_clock; +using ceph::real_time; + +using ceph::coarse_real_clock; +using ceph::coarse_mono_clock; + +using ceph::timespan; +using ceph::signedspan; + +using std::chrono::seconds; +using std::chrono::microseconds; +using std::chrono::nanoseconds; + +static_assert(!real_clock::is_steady, "ceph::real_clock must not be steady."); +static_assert(!coarse_real_clock::is_steady, + "ceph::coarse_real_clock must not be steady."); + +static_assert(mono_clock::is_steady, "ceph::mono_clock must be steady."); +static_assert(coarse_mono_clock::is_steady, + "ceph::coarse_mono_clock must be steady."); + +// Before this file was written. +static constexpr uint32_t bs = 1440701569; +static constexpr uint32_t bns = 123456789; +static constexpr uint32_t bus = 123456; +static constexpr time_t btt = bs; +static constexpr struct timespec bts = { bs, bns }; +static struct ceph_timespec bcts = { init_le32(bs), init_le32(bns) }; +static constexpr struct timeval btv = { bs, bus }; +static constexpr double bd = bs + ((double)bns / 1000000000.); + +template<typename Clock> +static void system_clock_sanity() { + static const typename Clock::time_point brt(seconds(bs) + nanoseconds(bns)); + const typename Clock::time_point now(Clock::now()); + + ASSERT_GT(now, brt); + + ASSERT_GT(Clock::to_time_t(now), btt); + + ASSERT_GT(Clock::to_timespec(now).tv_sec, bts.tv_sec); + ASSERT_LT(Clock::to_timespec(now).tv_nsec, 1000000000L); + + ASSERT_GT(Clock::to_ceph_timespec(now).tv_sec, bcts.tv_sec); + ASSERT_LT(Clock::to_ceph_timespec(now).tv_nsec, 1000000000UL); + + ASSERT_GT(Clock::to_timeval(now).tv_sec, btv.tv_sec); + ASSERT_LT(Clock::to_timeval(now).tv_usec, 1000000L); +} + +template<typename Clock> +static void system_clock_conversions() { + static typename Clock::time_point brt(seconds(bs) + + nanoseconds(bns)); + + ASSERT_EQ(Clock::to_time_t(brt), btt); + ASSERT_EQ(Clock::from_time_t(btt) + nanoseconds(bns), brt); + + { + const struct timespec tts = Clock::to_timespec(brt); + ASSERT_EQ(tts.tv_sec, bts.tv_sec); + ASSERT_EQ(tts.tv_nsec, bts.tv_nsec); + } + ASSERT_EQ(Clock::from_timespec(bts), brt); + { + struct timespec tts; + Clock::to_timespec(brt, tts); + ASSERT_EQ(tts.tv_sec, bts.tv_sec); + ASSERT_EQ(tts.tv_nsec, bts.tv_nsec); + } + + { + const struct ceph_timespec tcts = Clock::to_ceph_timespec(brt); + ASSERT_EQ(tcts.tv_sec, bcts.tv_sec); + ASSERT_EQ(tcts.tv_nsec, bcts.tv_nsec); + } + ASSERT_EQ(Clock::from_ceph_timespec(bcts), brt); + { + struct ceph_timespec tcts; + Clock::to_ceph_timespec(brt, tcts); + ASSERT_EQ(tcts.tv_sec, bcts.tv_sec); + ASSERT_EQ(tcts.tv_nsec, bcts.tv_nsec); + } + + { + const struct timeval ttv = Clock::to_timeval(brt); + ASSERT_EQ(ttv.tv_sec, btv.tv_sec); + ASSERT_EQ(ttv.tv_usec, btv.tv_usec); + } + ASSERT_EQ(Clock::from_timeval(btv), brt - nanoseconds(bns - bus * 1000)); + { + struct timeval ttv; + Clock::to_timeval(brt, ttv); + ASSERT_EQ(ttv.tv_sec, btv.tv_sec); + ASSERT_EQ(ttv.tv_usec, btv.tv_usec); + } + + ASSERT_EQ(Clock::to_double(brt), bd); + // Fudge factor + ASSERT_LT(std::abs((Clock::from_double(bd) - brt).count()), 30); +} + +TEST(RealClock, Sanity) { + system_clock_sanity<real_clock>(); +} + + +TEST(RealClock, Conversions) { + system_clock_conversions<real_clock>(); +} + +TEST(CoarseRealClock, Sanity) { + system_clock_sanity<coarse_real_clock>(); +} + + +TEST(CoarseRealClock, Conversions) { + system_clock_conversions<coarse_real_clock>(); +} + +TEST(TimePoints, SignedSubtraciton) { + ceph::real_time rta(std::chrono::seconds(3)); + ceph::real_time rtb(std::chrono::seconds(5)); + + ceph::coarse_real_time crta(std::chrono::seconds(3)); + ceph::coarse_real_time crtb(std::chrono::seconds(5)); + + ceph::mono_time mta(std::chrono::seconds(3)); + ceph::mono_time mtb(std::chrono::seconds(5)); + + ceph::coarse_mono_time cmta(std::chrono::seconds(3)); + ceph::coarse_mono_time cmtb(std::chrono::seconds(5)); + + ASSERT_LT(rta - rtb, ceph::signedspan::zero()); + ASSERT_LT((rta - rtb).count(), 0); + ASSERT_GT(rtb - rta, ceph::signedspan::zero()); + ASSERT_GT((rtb - rta).count(), 0); + + ASSERT_LT(crta - crtb, ceph::signedspan::zero()); + ASSERT_LT((crta - crtb).count(), 0); + ASSERT_GT(crtb - crta, ceph::signedspan::zero()); + ASSERT_GT((crtb - crta).count(), 0); + + ASSERT_LT(mta - mtb, ceph::signedspan::zero()); + ASSERT_LT((mta - mtb).count(), 0); + ASSERT_GT(mtb - mta, ceph::signedspan::zero()); + ASSERT_GT((mtb - mta).count(), 0); + + ASSERT_LT(cmta - cmtb, ceph::signedspan::zero()); + ASSERT_LT((cmta - cmtb).count(), 0); + ASSERT_GT(cmtb - cmta, ceph::signedspan::zero()); + ASSERT_GT((cmtb - cmta).count(), 0); +} + +TEST(TimePoints, stringify) { + ceph::real_clock::time_point tp(seconds(1556122013) + nanoseconds(39923122)); + string s = stringify(tp); + ASSERT_EQ(s.size(), strlen("2019-04-24T11:06:53.039923-0500")); + ASSERT_TRUE(s[26] == '-' || s[26] == '+'); + ASSERT_EQ(s.substr(0, 9), "2019-04-2"); + + ceph::coarse_real_clock::time_point ctp(seconds(1556122013) + + nanoseconds(399000000)); + s = stringify(ctp); + ASSERT_EQ(s.size(), strlen("2019-04-24T11:06:53.399000-0500")); + ASSERT_TRUE(s[26] == '-' || s[26] == '+'); + ASSERT_EQ(s.substr(0, 9), "2019-04-2"); +} + +namespace { + template<typename Rep, typename Period> + std::string to_string(const chrono::duration<Rep, Period>& t) + { + std::ostringstream ss; + ss << t; + return ss.str(); + } + + void float_format_eq(string_view lhs, + string_view rhs, + unsigned precision) + { + const float TOLERANCE = 10.0F / pow(10.0F, static_cast<float>(precision)); + ASSERT_FALSE(lhs.empty()); + ASSERT_EQ(lhs.back(), 's'); + float lhs_v = std::stof(string{lhs, 0, lhs.find('s')}); + ASSERT_NE(lhs.npos, lhs.find('.')); + ASSERT_EQ(precision, lhs.find('s') - lhs.find('.') - 1); + + ASSERT_FALSE(rhs.empty()); + ASSERT_EQ(rhs.back(), 's'); + float rhs_v = std::stof(string{rhs, 0, rhs.find('s')}); + EXPECT_NEAR(lhs_v, rhs_v, TOLERANCE); + ASSERT_NE(rhs.npos, rhs.find('.')); + EXPECT_EQ(precision, rhs.find('s') - rhs.find('.') - 1); + } +} + +TEST(TimeDurations, print) { + float_format_eq("0.123456700s", + to_string(std::chrono::duration_cast<ceph::timespan>(0.1234567s)), + 9); + float_format_eq("-0.123456700s", + to_string(std::chrono::duration_cast<ceph::signedspan>(-0.1234567s)), + 9); + EXPECT_EQ("42s", to_string(42s)); + float_format_eq("0.123000000s", to_string(123ms), 9); +} |