tests/arch/utils/timespec_utils_tests.cpp

/*******************************************************************************
 * Copyright (c) 2018 ACIN
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *   Martin Melik Merkumians - initial test implementation and/or initial documentation
 *******************************************************************************/

#include <boost/test/unit_test.hpp>

#include "../../../src/arch/utils/timespec_utils.h"

using namespace boost::unit_test;

BOOST_AUTO_TEST_SUITE(TimeSpecUtils)

BOOST_AUTO_TEST_CASE(AddTwoTimeSpecs)
{
  struct timespec start = { 0, 0 };
  struct timespec end = { 1, 26548 };
  struct timespec result = { 0, 0 };
  timespecAdd(&start, &end, &result);
  BOOST_TEST(result.tv_sec == 1);
  BOOST_TEST(result.tv_nsec == 26548);
}

BOOST_AUTO_TEST_CASE(AddTwoTimeSpecsWithOverflow)
{
  struct timespec start = { 0, 1000000000 };
  struct timespec end = { 1, 26548 };
  struct timespec result = { 0, 0 };
  timespecAdd(&start, &end, &result);
  BOOST_TEST(result.tv_sec == 2);
  BOOST_TEST(result.tv_nsec == 26548);
}

BOOST_AUTO_TEST_CASE(SubtractTwoTimeSpecs)
{
  struct timespec start = { 5, 543254 };
  struct timespec end = { 1, 26548 };
  struct timespec result = { 0, 0 };
  timespecSub(&start, &end, &result);
  BOOST_TEST(result.tv_sec == 4);
  BOOST_TEST(result.tv_nsec == 516706);
}

BOOST_AUTO_TEST_CASE(SubtractTwoTimeSpecsWithOverflow)
{
  struct timespec start = { 5, 26548};
  struct timespec end = { 1, 543254 };
  struct timespec result = { 0, 0 };
  timespecSub(&start, &end, &result);
  BOOST_TEST(result.tv_sec == 3);
  BOOST_TEST(result.tv_nsec == 999483294);
}

BOOST_AUTO_TEST_SUITE_END()