/*
 * Project: MoleCuilder
 * Description: creates and alters molecular systems
 * Copyright (C)  2012 University of Bonn. All rights reserved.
 * 
 *
 *   This file is part of MoleCuilder.
 *
 *    MoleCuilder 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, either version 2 of the License, or
 *    (at your option) any later version.
 *
 *    MoleCuilder 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 MoleCuilder.  If not, see <http://www.gnu.org/licenses/>.
 */

/*
 * Box_BoundaryConditionsUnitTest.cpp
 *
 *  Created on: Jan 2, 2012
 *      Author: heber
 */

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

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

#include <sstream>

#include "Box_BoundaryConditions.hpp"
#include "CodePatterns/Assert.hpp"
#include "LinearAlgebra/defs.hpp"

#include "Box_BoundaryConditionsUnitTest.hpp"

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

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

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

void Box_BoundaryConditionsTest::setUp(){
  // failing asserts should be thrown
  ASSERT_DO(Assert::Throw);

  CPPUNIT_ASSERT_NO_THROW( bc = new BoundaryConditions::BCContainer );
}

void Box_BoundaryConditionsTest::tearDown()
{
  delete bc;
}

void Box_BoundaryConditionsTest::getTest()
{
  // check default values
  for (size_t index = 0; index < NDIM; ++index)
    CPPUNIT_ASSERT_EQUAL( BoundaryConditions::Wrap, bc->get(index));

  // check throw
#ifndef NDEBUG
  std::cout << "The following assertions are intended and do not represent a failure of the test.\n";
  CPPUNIT_ASSERT_THROW( bc->get(4), Assert::AssertionFailure );
  CPPUNIT_ASSERT_THROW( bc->get(-1), Assert::AssertionFailure );
#endif
}

void Box_BoundaryConditionsTest::setTest()
{
  // set to other values
  bc->set(1, BoundaryConditions::Ignore);
  bc->set(2, BoundaryConditions::Bounce);

  // check that is not Wrap anymore
  CPPUNIT_ASSERT_EQUAL( BoundaryConditions::Ignore, bc->get(1) );
  CPPUNIT_ASSERT_EQUAL( BoundaryConditions::Bounce, bc->get(2) );

  // check throw
#ifndef NDEBUG
  std::cout << "The following assertions are intended and do not represent a failure of the test.\n";
  CPPUNIT_ASSERT_THROW( bc->set(4, BoundaryConditions::Wrap), Assert::AssertionFailure );
  CPPUNIT_ASSERT_THROW( bc->set(-1, BoundaryConditions::Wrap), Assert::AssertionFailure );
#endif

  // set all at once
  BoundaryConditions::Conditions_t conditions(3, BoundaryConditions::Wrap);

  // check throw
  conditions.resize(NDIM+1, BoundaryConditions::Wrap);
#ifndef NDEBUG
  std::cout << "The following assertion is intended and does not represent a failure of the test.\n";
  CPPUNIT_ASSERT_THROW( bc->set(conditions), Assert::AssertionFailure );
#endif
  conditions.resize(NDIM-1, BoundaryConditions::Wrap);
#ifndef NDEBUG
  std::cout << "The following assertion is intended and does not represent a failure of the test.\n";
  CPPUNIT_ASSERT_THROW( bc->set(conditions), Assert::AssertionFailure );
#endif
}

void Box_BoundaryConditionsTest::outputTest()
{
  std::stringstream outstream;
  outstream << *bc;
  CPPUNIT_ASSERT( outstream.str() == std::string("Wrap Wrap Wrap"));
}

void Box_BoundaryConditionsTest::converterTest()
{
  // enum to string
  for (size_t index = (size_t)0; index < (size_t)BoundaryConditions::MAX_BoundaryCondition_t;index++)
    CPPUNIT_ASSERT_EQUAL(
        bc->ConverterBiMap[(BoundaryConditions::BoundaryCondition_t)index],
        bc->getName((BoundaryConditions::BoundaryCondition_t)index) );
  // check throw
#ifndef NDEBUG
  std::cout << "The following assertion is intended and does not represent a failure of the test.\n";
  CPPUNIT_ASSERT_THROW( bc->getName(BoundaryConditions::MAX_BoundaryCondition_t), Assert::AssertionFailure );
#endif

  // enum to string
  CPPUNIT_ASSERT_EQUAL( BoundaryConditions::Wrap, bc->getEnum(std::string("Wrap")) );
  CPPUNIT_ASSERT_EQUAL( BoundaryConditions::Bounce, bc->getEnum(std::string("Bounce")) );
  CPPUNIT_ASSERT_EQUAL( BoundaryConditions::Ignore, bc->getEnum(std::string("Ignore")) );
  // check throw
#ifndef NDEBUG
  std::cout << "The following assertion is intended and does not represent a failure of the test.\n";
  CPPUNIT_ASSERT_THROW( bc->getEnum("Unknown"), Assert::AssertionFailure );
#endif
}

void Box_BoundaryConditionsTest::inputTest()
{
  // set by string
  std::stringstream inputstream(" Bounce,Wrap,Ignore");
  std::stringstream otherinputstream(" Bounce Wrap Ignore");
  std::stringstream anotherinputstream(" Bounce, Wrap, Ignore");

  // check
  CPPUNIT_ASSERT_NO_THROW( inputstream >> *bc );
  CPPUNIT_ASSERT_EQUAL( BoundaryConditions::Bounce, bc->get(0) );
  CPPUNIT_ASSERT_EQUAL( BoundaryConditions::Wrap, bc->get(1) );
  CPPUNIT_ASSERT_EQUAL( BoundaryConditions::Ignore, bc->get(2) );

  // check
  CPPUNIT_ASSERT_NO_THROW( otherinputstream >> *bc );
  CPPUNIT_ASSERT_EQUAL( BoundaryConditions::Bounce, bc->get(0) );
  CPPUNIT_ASSERT_EQUAL( BoundaryConditions::Wrap, bc->get(1) );
  CPPUNIT_ASSERT_EQUAL( BoundaryConditions::Ignore, bc->get(2) );

  // check
  CPPUNIT_ASSERT_NO_THROW( anotherinputstream >> *bc );
  CPPUNIT_ASSERT_EQUAL( BoundaryConditions::Bounce, bc->get(0) );
  CPPUNIT_ASSERT_EQUAL( BoundaryConditions::Wrap, bc->get(1) );
  CPPUNIT_ASSERT_EQUAL( BoundaryConditions::Ignore, bc->get(2) );

  // check throw
  std::stringstream invalidstream1("Bounce");
  std::stringstream invalidstream2("Bounce, Bounce, Wrap, Ignore");
#ifndef NDEBUG
  std::cout << "The following assertions are intended and do not represent a failure of the test.\n";
  CPPUNIT_ASSERT_THROW( invalidstream1 >> *bc, Assert::AssertionFailure );
  CPPUNIT_ASSERT_THROW( invalidstream2 >> *bc, Assert::AssertionFailure );
#endif

  // check that all is still the same
  CPPUNIT_ASSERT_EQUAL( BoundaryConditions::Bounce, bc->get(0) );
  CPPUNIT_ASSERT_EQUAL( BoundaryConditions::Wrap, bc->get(1) );
  CPPUNIT_ASSERT_EQUAL( BoundaryConditions::Ignore, bc->get(2) );
}