/* SPDX-FileCopyrightText: Copyright (c) 2017 - 2024, the adamantine authors.
 * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 */

#define BOOST_TEST_MODULE Timer

#include <Timer.hh>

#include <chrono>
#include <fstream>
#include <thread>

#include "main.cc"

BOOST_AUTO_TEST_CASE(test_timer)
{
  unsigned int const tolerance = 15;
  adamantine::Timer timer(MPI_COMM_WORLD, "test");

  timer.start();
  std::this_thread::sleep_for(std::chrono::milliseconds(200));
  timer.stop();
  boost::chrono::process_cpu_clock::duration duration =
      timer.get_elapsed_time();
  boost::chrono::milliseconds ms =
      boost::chrono::duration_cast<boost::chrono::milliseconds>(duration);
  BOOST_TEST(std::abs(ms.count() - 200) < tolerance);

  timer.start();
  std::this_thread::sleep_for(std::chrono::milliseconds(200));
  timer.stop();
  duration = timer.get_elapsed_time();
  ms = boost::chrono::duration_cast<boost::chrono::milliseconds>(duration);
  BOOST_TEST(std::abs(ms.count() - 400) < 2 * tolerance);

  timer.reset();
  timer.start();
  std::this_thread::sleep_for(std::chrono::milliseconds(200));
  timer.stop();
  duration = timer.get_elapsed_time();
  ms = boost::chrono::duration_cast<boost::chrono::milliseconds>(duration);
  BOOST_TEST(std::abs(ms.count() - 200) < tolerance);
}