134 lines
4.5 KiB
C++
134 lines
4.5 KiB
C++
// Copyright 2015 The Crashpad Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "util/misc/time.h"
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#include <limits>
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#include "build/build_config.h"
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#include "gtest/gtest.h"
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namespace crashpad {
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namespace test {
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namespace {
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TEST(Time, TimespecArithmetic) {
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timespec ts1, ts2, result;
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ts1.tv_sec = ts2.tv_sec = 1;
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ts1.tv_nsec = ts2.tv_nsec = kNanosecondsPerSecond / 2;
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AddTimespec(ts1, ts2, &result);
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EXPECT_EQ(result.tv_sec, 3);
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EXPECT_EQ(result.tv_nsec, 0);
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ts1.tv_sec = 2;
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ts1.tv_nsec = 0;
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ts2.tv_sec = 1;
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ts2.tv_nsec = 1;
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SubtractTimespec(ts1, ts2, &result);
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EXPECT_EQ(result.tv_sec, 0);
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EXPECT_EQ(result.tv_nsec, long{kNanosecondsPerSecond - 1});
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}
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TEST(Time, TimeConversions) {
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// On July 30th, 2014 at 9:15 PM GMT+0, the Crashpad git repository was born.
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// (nanoseconds are approximate)
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constexpr timespec kCrashpadBirthdate = {
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/* .tv_sec= */ 1406754914,
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/* .tv_nsec= */ 32487
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};
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timeval timeval_birthdate;
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ASSERT_TRUE(TimespecToTimeval(kCrashpadBirthdate, &timeval_birthdate));
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EXPECT_EQ(timeval_birthdate.tv_sec, kCrashpadBirthdate.tv_sec);
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EXPECT_EQ(timeval_birthdate.tv_usec, kCrashpadBirthdate.tv_nsec / 1000);
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timespec timespec_birthdate;
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TimevalToTimespec(timeval_birthdate, ×pec_birthdate);
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EXPECT_EQ(timespec_birthdate.tv_sec, kCrashpadBirthdate.tv_sec);
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EXPECT_EQ(timespec_birthdate.tv_nsec,
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kCrashpadBirthdate.tv_nsec - (kCrashpadBirthdate.tv_nsec % 1000));
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constexpr timespec kEndOfTime = {
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/* .tv_sec= */ std::numeric_limits<decltype(timespec::tv_sec)>::max(),
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/* .tv_nsec= */ 0
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};
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timeval end_of_timeval;
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if (std::numeric_limits<decltype(timespec::tv_sec)>::max() >
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std::numeric_limits<decltype(timeval::tv_sec)>::max()) {
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EXPECT_FALSE(TimespecToTimeval(kEndOfTime, &end_of_timeval));
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} else {
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EXPECT_TRUE(TimespecToTimeval(kEndOfTime, &end_of_timeval));
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}
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#if BUILDFLAG(IS_WIN)
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constexpr uint64_t kBirthdateFiletimeIntervals = 130512285140000324;
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FILETIME filetime_birthdate;
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filetime_birthdate.dwLowDateTime = 0xffffffff & kBirthdateFiletimeIntervals;
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filetime_birthdate.dwHighDateTime = kBirthdateFiletimeIntervals >> 32;
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FILETIME filetime = TimespecToFiletimeEpoch(kCrashpadBirthdate);
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EXPECT_EQ(filetime.dwLowDateTime, filetime_birthdate.dwLowDateTime);
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EXPECT_EQ(filetime.dwHighDateTime, filetime_birthdate.dwHighDateTime);
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timespec_birthdate = FiletimeToTimespecEpoch(filetime_birthdate);
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EXPECT_EQ(timespec_birthdate.tv_sec, kCrashpadBirthdate.tv_sec);
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EXPECT_EQ(timespec_birthdate.tv_nsec,
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kCrashpadBirthdate.tv_nsec - kCrashpadBirthdate.tv_nsec % 100);
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timeval_birthdate = FiletimeToTimevalEpoch(filetime_birthdate);
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EXPECT_EQ(timeval_birthdate.tv_sec, kCrashpadBirthdate.tv_sec);
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EXPECT_EQ(timeval_birthdate.tv_usec, kCrashpadBirthdate.tv_nsec / 1000);
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FILETIME elapsed_filetime;
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elapsed_filetime.dwLowDateTime = 0;
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elapsed_filetime.dwHighDateTime = 0;
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timeval elapsed_timeval = FiletimeToTimevalInterval(elapsed_filetime);
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EXPECT_EQ(elapsed_timeval.tv_sec, 0);
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EXPECT_EQ(elapsed_timeval.tv_usec, 0);
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elapsed_filetime.dwLowDateTime = 9;
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elapsed_timeval = FiletimeToTimevalInterval(elapsed_filetime);
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EXPECT_EQ(elapsed_timeval.tv_sec, 0);
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EXPECT_EQ(elapsed_timeval.tv_usec, 0);
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elapsed_filetime.dwLowDateTime = 10;
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elapsed_timeval = FiletimeToTimevalInterval(elapsed_filetime);
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EXPECT_EQ(elapsed_timeval.tv_sec, 0);
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EXPECT_EQ(elapsed_timeval.tv_usec, 1);
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elapsed_filetime.dwHighDateTime = 1;
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elapsed_filetime.dwLowDateTime = 0;
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elapsed_timeval = FiletimeToTimevalInterval(elapsed_filetime);
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EXPECT_EQ(elapsed_timeval.tv_sec, 429);
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EXPECT_EQ(elapsed_timeval.tv_usec, 496729);
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#endif // BUILDFLAG(IS_WIN)
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}
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#if BUILDFLAG(IS_WIN)
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TEST(Time, GetTimeOfDay) {
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timeval t;
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GetTimeOfDay(&t);
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time_t approx_now = time(nullptr);
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EXPECT_GE(approx_now, t.tv_sec);
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EXPECT_LT(approx_now - 100, t.tv_sec);
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}
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#endif // BUILDFLAG(IS_WIN)
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} // namespace
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} // namespace test
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} // namespace crashpad
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