test/test-executor.cc

/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
/*
 * Copyright (c) 2013 University of California, Los Angeles
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Author: Zhenkai Zhu <zhenkai@cs.ucla.edu>
 *         Alexander Afanasyev <alexander.afanasyev@ucla.edu>
 */


#include <boost/test/unit_test.hpp>
#include "executor.h"

using namespace boost;
using namespace std;

void timeConsumingJob()
{
  cout << "Start sleep" << endl;
  sleep(1);
  cout << "finish sleep" << endl;
}

BOOST_AUTO_TEST_CASE(ExecutorTest)
{
  Executor executor(3);
  Executor::Job job = bind(timeConsumingJob);

  executor.execute(job);
  executor.execute(job);

  usleep(100);
  // both jobs should have been taken care of
  BOOST_CHECK_EQUAL(executor.jobQueueSize(), 0);

  usleep(500000);

  // add four jobs while only one thread is idle
  executor.execute(job);
  executor.execute(job);
  executor.execute(job);
  executor.execute(job);

  usleep(100);
  // three jobs should remain in queue
  BOOST_CHECK_EQUAL(executor.jobQueueSize(), 3);

  usleep(500000);
  // two threads should have finished and 
  // take care of two queued jobs
  BOOST_CHECK_EQUAL(executor.jobQueueSize(), 1);

  // all jobs should have been fetched
  usleep(500100);
  BOOST_CHECK_EQUAL(executor.jobQueueSize(), 0);

  sleep(1);

}