| // Copyright 2013 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include <cstdlib> |
| |
| #include "v8.h" |
| |
| #include "cctest.h" |
| #if V8_OS_WIN |
| #include "win32-headers.h" |
| #endif |
| |
| using namespace v8::internal; |
| |
| |
| TEST(TimeDeltaFromAndIn) { |
| CHECK(TimeDelta::FromDays(2) == TimeDelta::FromHours(48)); |
| CHECK(TimeDelta::FromHours(3) == TimeDelta::FromMinutes(180)); |
| CHECK(TimeDelta::FromMinutes(2) == TimeDelta::FromSeconds(120)); |
| CHECK(TimeDelta::FromSeconds(2) == TimeDelta::FromMilliseconds(2000)); |
| CHECK(TimeDelta::FromMilliseconds(2) == TimeDelta::FromMicroseconds(2000)); |
| CHECK_EQ(static_cast<int>(13), TimeDelta::FromDays(13).InDays()); |
| CHECK_EQ(static_cast<int>(13), TimeDelta::FromHours(13).InHours()); |
| CHECK_EQ(static_cast<int>(13), TimeDelta::FromMinutes(13).InMinutes()); |
| CHECK_EQ(static_cast<int64_t>(13), TimeDelta::FromSeconds(13).InSeconds()); |
| CHECK_EQ(13.0, TimeDelta::FromSeconds(13).InSecondsF()); |
| CHECK_EQ(static_cast<int64_t>(13), |
| TimeDelta::FromMilliseconds(13).InMilliseconds()); |
| CHECK_EQ(13.0, TimeDelta::FromMilliseconds(13).InMillisecondsF()); |
| CHECK_EQ(static_cast<int64_t>(13), |
| TimeDelta::FromMicroseconds(13).InMicroseconds()); |
| } |
| |
| |
| #if V8_OS_MACOSX |
| TEST(TimeDeltaFromMachTimespec) { |
| TimeDelta null = TimeDelta(); |
| CHECK(null == TimeDelta::FromMachTimespec(null.ToMachTimespec())); |
| TimeDelta delta1 = TimeDelta::FromMilliseconds(42); |
| CHECK(delta1 == TimeDelta::FromMachTimespec(delta1.ToMachTimespec())); |
| TimeDelta delta2 = TimeDelta::FromDays(42); |
| CHECK(delta2 == TimeDelta::FromMachTimespec(delta2.ToMachTimespec())); |
| } |
| #endif |
| |
| |
| TEST(TimeJsTime) { |
| Time t = Time::FromJsTime(700000.3); |
| CHECK_EQ(700000.3, t.ToJsTime()); |
| } |
| |
| |
| #if V8_OS_POSIX |
| TEST(TimeFromTimespec) { |
| Time null; |
| CHECK(null.IsNull()); |
| CHECK(null == Time::FromTimespec(null.ToTimespec())); |
| Time now = Time::Now(); |
| CHECK(now == Time::FromTimespec(now.ToTimespec())); |
| Time now_sys = Time::NowFromSystemTime(); |
| CHECK(now_sys == Time::FromTimespec(now_sys.ToTimespec())); |
| Time unix_epoch = Time::UnixEpoch(); |
| CHECK(unix_epoch == Time::FromTimespec(unix_epoch.ToTimespec())); |
| Time max = Time::Max(); |
| CHECK(max.IsMax()); |
| CHECK(max == Time::FromTimespec(max.ToTimespec())); |
| } |
| |
| |
| TEST(TimeFromTimeval) { |
| Time null; |
| CHECK(null.IsNull()); |
| CHECK(null == Time::FromTimeval(null.ToTimeval())); |
| Time now = Time::Now(); |
| CHECK(now == Time::FromTimeval(now.ToTimeval())); |
| Time now_sys = Time::NowFromSystemTime(); |
| CHECK(now_sys == Time::FromTimeval(now_sys.ToTimeval())); |
| Time unix_epoch = Time::UnixEpoch(); |
| CHECK(unix_epoch == Time::FromTimeval(unix_epoch.ToTimeval())); |
| Time max = Time::Max(); |
| CHECK(max.IsMax()); |
| CHECK(max == Time::FromTimeval(max.ToTimeval())); |
| } |
| #endif |
| |
| |
| #if V8_OS_WIN |
| TEST(TimeFromFiletime) { |
| Time null; |
| CHECK(null.IsNull()); |
| CHECK(null == Time::FromFiletime(null.ToFiletime())); |
| Time now = Time::Now(); |
| CHECK(now == Time::FromFiletime(now.ToFiletime())); |
| Time now_sys = Time::NowFromSystemTime(); |
| CHECK(now_sys == Time::FromFiletime(now_sys.ToFiletime())); |
| Time unix_epoch = Time::UnixEpoch(); |
| CHECK(unix_epoch == Time::FromFiletime(unix_epoch.ToFiletime())); |
| Time max = Time::Max(); |
| CHECK(max.IsMax()); |
| CHECK(max == Time::FromFiletime(max.ToFiletime())); |
| } |
| #endif |
| |
| |
| TEST(TimeTicksIsMonotonic) { |
| TimeTicks previous_normal_ticks; |
| TimeTicks previous_highres_ticks; |
| ElapsedTimer timer; |
| timer.Start(); |
| while (!timer.HasExpired(TimeDelta::FromMilliseconds(100))) { |
| TimeTicks normal_ticks = TimeTicks::Now(); |
| TimeTicks highres_ticks = TimeTicks::HighResolutionNow(); |
| CHECK_GE(normal_ticks, previous_normal_ticks); |
| CHECK_GE((normal_ticks - previous_normal_ticks).InMicroseconds(), 0); |
| CHECK_GE(highres_ticks, previous_highres_ticks); |
| CHECK_GE((highres_ticks - previous_highres_ticks).InMicroseconds(), 0); |
| previous_normal_ticks = normal_ticks; |
| previous_highres_ticks = highres_ticks; |
| } |
| } |
| |
| |
| template <typename T> |
| static void ResolutionTest(T (*Now)(), TimeDelta target_granularity) { |
| // We're trying to measure that intervals increment in a VERY small amount |
| // of time -- according to the specified target granularity. Unfortunately, |
| // if we happen to have a context switch in the middle of our test, the |
| // context switch could easily exceed our limit. So, we iterate on this |
| // several times. As long as we're able to detect the fine-granularity |
| // timers at least once, then the test has succeeded. |
| static const TimeDelta kExpirationTimeout = TimeDelta::FromSeconds(1); |
| ElapsedTimer timer; |
| timer.Start(); |
| TimeDelta delta; |
| do { |
| T start = Now(); |
| T now = start; |
| // Loop until we can detect that the clock has changed. Non-HighRes timers |
| // will increment in chunks, i.e. 15ms. By spinning until we see a clock |
| // change, we detect the minimum time between measurements. |
| do { |
| now = Now(); |
| delta = now - start; |
| } while (now <= start); |
| CHECK_NE(static_cast<int64_t>(0), delta.InMicroseconds()); |
| } while (delta > target_granularity && !timer.HasExpired(kExpirationTimeout)); |
| CHECK_LE(delta, target_granularity); |
| } |
| |
| |
| TEST(TimeNowResolution) { |
| // We assume that Time::Now() has at least 16ms resolution. |
| static const TimeDelta kTargetGranularity = TimeDelta::FromMilliseconds(16); |
| ResolutionTest<Time>(&Time::Now, kTargetGranularity); |
| } |
| |
| |
| TEST(TimeTicksNowResolution) { |
| // We assume that TimeTicks::Now() has at least 16ms resolution. |
| static const TimeDelta kTargetGranularity = TimeDelta::FromMilliseconds(16); |
| ResolutionTest<TimeTicks>(&TimeTicks::Now, kTargetGranularity); |
| } |
| |
| |
| TEST(TimeTicksHighResolutionNowResolution) { |
| if (!TimeTicks::IsHighResolutionClockWorking()) return; |
| |
| // We assume that TimeTicks::HighResolutionNow() has sub-ms resolution. |
| static const TimeDelta kTargetGranularity = TimeDelta::FromMilliseconds(1); |
| ResolutionTest<TimeTicks>(&TimeTicks::HighResolutionNow, kTargetGranularity); |
| } |