/*
 * Project: MoleCuilder
 * Description: creates and alters molecular systems
 * Copyright (C)  2010 University of Bonn. All rights reserved.
 * Please see the LICENSE file or "Copyright notice" in builder.cpp for details.
 */

/*
 * ChronosUnitTest.cpp
 */


// include config.h
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

using namespace std;

#include <cppunit/CompilerOutputter.h>
#include <cppunit/extensions/TestFactoryRegistry.h>
#include <cppunit/ui/text/TestRunner.h>

#include "Chronos.hpp"
#include "Info.hpp"

#include "ChronosUnitTest.hpp"

#ifdef HAVE_TESTRUNNER
#include "UnitTestMain.hpp"
#endif /*HAVE_TESTRUNNER*/

/********************************************** Test classes **************************************/

// Registers the fixture into the 'registry'
CPPUNIT_TEST_SUITE_REGISTRATION( ChronosTest );


void dummy()
{
  Info FunctionInfo(__func__);
  for (int i=0;i<10000000;++i)
    std::cout << "";
}

void dummy_two()
{
  Info FunctionInfo(__func__);
  for (int i=0;i<1000000;++i)
    std::cout << "";
}


void ChronosTest::setUp()
{
}

void ChronosTest::tearDown()
{
  Chronos::purgeInstance();
}

/**
 * UnitTest for Chronos()
 */
void ChronosTest::InstanceTest()
{
  // check that we get a Non-NULL pointer
  CPPUNIT_ASSERT(Chronos::getPointer());
}

/**
 * UnitTest for Chronos()
 */
void ChronosTest::InfoTest()
{
  Info FunctionInfo(__func__);
  CPPUNIT_ASSERT_EQUAL( (size_t) 1, Info::NumberInfos );
}

/**
 * UnitTest for Chronos()
 */
void ChronosTest::dummyTest()
{
  double timings[4];
  // first dummy
  dummy();
  CPPUNIT_ASSERT( Chronos::getInstance().TimeRunning.find(std::string("dummy"))
      != Chronos::getInstance().TimeRunning.end() );
  CPPUNIT_ASSERT_EQUAL( (size_t) 1, Chronos::getInstance().SumUpTotalFunctions() );
  timings[0] = Chronos::getInstance().AccountedTime[std::string("dummy")];
  std::cout << "Timing[0]: " << timings[0] << std::endl;
  CPPUNIT_ASSERT(timings[0] > 0.);
  dummy();
  // second call goes to same entry
  CPPUNIT_ASSERT_EQUAL( (size_t) 1, Chronos::getInstance().SumUpTotalFunctions() );
  timings[1] = Chronos::getInstance().AccountedTime[std::string("dummy")] - timings[0];
  std::cout << "Timing[1]: " << timings[1] << std::endl;
  CPPUNIT_ASSERT(timings[1] > 0.);


  // second dummy
  dummy_two();
  CPPUNIT_ASSERT( Chronos::getInstance().TimeRunning.find(std::string("dummy_two"))
      != Chronos::getInstance().TimeRunning.end() );
  CPPUNIT_ASSERT_EQUAL( (size_t) 2, Chronos::getInstance().SumUpTotalFunctions() );
  timings[2] = Chronos::getInstance().AccountedTime[std::string("dummy_two")];
  std::cout << "Timing[2]: " << timings[2] << std::endl;
  CPPUNIT_ASSERT(timings[2] > 0.);

  // "inline" dummy
  {
    Info DummyInfo("dummy_three");
    for (int i=0;i<1000000;++i)
      std::cout << "";
  }
  CPPUNIT_ASSERT( Chronos::getInstance().TimeRunning.find(std::string("dummy_three"))
      != Chronos::getInstance().TimeRunning.end() );
  CPPUNIT_ASSERT_EQUAL( (size_t) 3, Chronos::getInstance().SumUpTotalFunctions() );
  timings[3] = Chronos::getInstance().AccountedTime[std::string("dummy_three")];
  std::cout << "Timing[3]: " << timings[3] << std::endl;
  CPPUNIT_ASSERT(timings[3] > 0.);

  // check summing of times
  CPPUNIT_ASSERT_EQUAL( timings[0] + timings[1] + timings[2] + timings[3], Chronos::getInstance().SumUpTotalTime());

  std::cout << Chronos::getInstance() << std::endl;
}