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- /*
- * Copyright 2016-present Facebook, Inc.
- *
- * 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 <folly/ClockGettimeWrappers.h>
- #include <chrono>
- #include <folly/portability/GTest.h>
- #include <folly/test/TestUtils.h>
- static constexpr auto kAcceptableDeltaSecs = std::chrono::seconds(120);
- using folly::test::AreWithinSecs;
- #ifdef CLOCK_REALTIME
- TEST(ClockGettimeWrappers, clockGettimeWrapperIsWithin120SecsOfSystemClock) {
- struct timespec ts;
- auto ret = folly::chrono::clock_gettime(CLOCK_REALTIME, &ts);
- ASSERT_EQ(0, ret);
- auto gettimeResult =
- std::chrono::seconds(ts.tv_sec) + std::chrono::nanoseconds(ts.tv_nsec);
- auto stdChronoSystemClockNow =
- std::chrono::system_clock::now().time_since_epoch();
- ASSERT_TRUE(AreWithinSecs(
- gettimeResult, stdChronoSystemClockNow, kAcceptableDeltaSecs));
- }
- TEST(ClockGettimeWrappers, clockGettimeNsWrapperIsWithin120SecsOfSystemClock) {
- auto now_ns = folly::chrono::clock_gettime_ns(CLOCK_REALTIME);
- auto stdChronoSystemClockNow =
- std::chrono::system_clock::now().time_since_epoch();
- ASSERT_TRUE(AreWithinSecs(
- std::chrono::nanoseconds(now_ns),
- stdChronoSystemClockNow,
- kAcceptableDeltaSecs));
- }
- #endif /* CLOCK_REALTIME */
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