1 // Copyright 2022 The Pigweed Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not 4 // use this file except in compliance with the License. You may obtain a copy of 5 // the License at 6 // 7 // https://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 12 // License for the specific language governing permissions and limitations under 13 // the License. 14 15 #include <chrono> 16 17 #include "pw_chrono/system_clock.h" 18 #include "pw_perf_test/internal/chrono_timer_interface.h" 19 #include "pw_thread/sleep.h" 20 #include "pw_unit_test/framework.h" 21 22 namespace pw::perf_test::internal::backend { 23 namespace { 24 25 constexpr chrono::SystemClock::duration kArbitraryDuration = 26 chrono::SystemClock::for_at_least(std::chrono::milliseconds(1)); 27 TEST(ChronoTest,DurationIsReasonable)28TEST(ChronoTest, DurationIsReasonable) { 29 Timestamp start = GetCurrentTimestamp(); 30 this_thread::sleep_for(kArbitraryDuration); 31 Timestamp end = GetCurrentTimestamp(); 32 int64_t duration = GetDuration(start, end); 33 EXPECT_GE(duration, 1000000); 34 } 35 36 } // namespace 37 } // namespace pw::perf_test::internal::backend 38