/*
 * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
 *
 * This code is licensed under the terms of the GPLv2
 * <http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most
 * MySQL Connectors. There are special exceptions to the terms and
 * conditions of the GPLv2 as it is applied to this software, see the
 * FLOSS License Exception
 * <http://www.mysql.com/about/legal/licensing/foss-exception.html>.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published
 * by the Free Software Foundation; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
 */

/**
  Unit tests for CDK time functions.
*/

#include "test.h"
#include <iostream>
#include <mysql/cdk/foundation/cdk_time.h>

using ::std::cout;
using ::std::endl;
using namespace cdk::foundation;


TEST(Foundation, time)
{
  using cdk::foundation::time_t;
  using cdk::foundation::sleep;

  time_t begin = get_time();

  cout <<"Start time is " <<begin/1000.0 <<" seconds from epoch"  <<endl;

  cout <<"Sleeping for 300 ms" <<endl;
  time_t start = get_time();
  sleep(300);
  time_t stop = get_time();

  cout <<"Measured delay: " <<(stop - start) <<"ms" <<endl;

  // Note: observed accuracy worse than +-30ms
  #define MARGIN 30
  EXPECT_FALSE(stop > start + 300 + MARGIN);
  EXPECT_FALSE(stop < start + 300 - MARGIN);
}

