Tempus_UnitTest_Leapfrog.cpp

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// @HEADER
// ****************************************************************************
//                Tempus: Copyright (2017) Sandia Corporation
//
// Distributed under BSD 3-clause license (See accompanying file Copyright.txt)
// ****************************************************************************
// @HEADER

#include "Teuchos_UnitTestHarness.hpp"
#include "Teuchos_XMLParameterListHelpers.hpp"
#include "Teuchos_TimeMonitor.hpp"
#include "Teuchos_DefaultComm.hpp"

#include "Thyra_VectorStdOps.hpp"

#include "Tempus_StepperFactory.hpp"
#include "Tempus_UnitTest_Utils.hpp"

#include "../TestModels/SinCosModel.hpp"
#include "../TestModels/VanDerPolModel.hpp"
#include "../TestModels/HarmonicOscillatorModel.hpp"
#include "../TestUtils/Tempus_ConvergenceTestUtils.hpp"

#include <fstream>
#include <vector>

namespace Tempus_Unit_Test {

using Teuchos::RCP;
using Teuchos::rcp;
using Teuchos::rcp_const_cast;
using Teuchos::rcp_dynamic_cast;
using Teuchos::ParameterList;
using Teuchos::sublist;
using Teuchos::getParametersFromXmlFile;

using Tempus::StepperFactory;


// ************************************************************
// ************************************************************
TEUCHOS_UNIT_TEST(Leapfrog, Default_Construction)
{
  auto model = rcp(new Tempus_Test::HarmonicOscillatorModel<double>());

  // Default construction.
  auto stepper = rcp(new Tempus::StepperLeapfrog<double>());
  stepper->setModel(model);
  stepper->initialize();
  TEUCHOS_TEST_FOR_EXCEPT(!stepper->isInitialized());


  // Default values for construction.
  auto obs    = rcp(new Tempus::StepperLeapfrogObserver<double>());

  bool useFSAL              = stepper->getUseFSALDefault();
  std::string ICConsistency = stepper->getICConsistencyDefault();
  bool ICConsistencyCheck   = stepper->getICConsistencyCheckDefault();


  // Test the set functions.
  stepper->setObserver(obs);                           stepper->initialize();  TEUCHOS_TEST_FOR_EXCEPT(!stepper->isInitialized());
  stepper->setUseFSAL(useFSAL);                        stepper->initialize();  TEUCHOS_TEST_FOR_EXCEPT(!stepper->isInitialized());
  stepper->setICConsistency(ICConsistency);            stepper->initialize();  TEUCHOS_TEST_FOR_EXCEPT(!stepper->isInitialized());
  stepper->setICConsistencyCheck(ICConsistencyCheck);  stepper->initialize();  TEUCHOS_TEST_FOR_EXCEPT(!stepper->isInitialized());


  // Full argument list construction.
  stepper = rcp(new Tempus::StepperLeapfrog<double>(
    model, obs, useFSAL, ICConsistency, ICConsistencyCheck));
  TEUCHOS_TEST_FOR_EXCEPT(!stepper->isInitialized());

  // Test stepper properties.
  TEUCHOS_ASSERT(stepper->getOrder() == 2);
}


// ************************************************************
// ************************************************************
TEUCHOS_UNIT_TEST(Leapfrog, StepperFactory_Construction)
{
  auto model = rcp(new Tempus_Test::HarmonicOscillatorModel<double>());
  testFactoryConstruction("Leapfrog", model);
}


} // namespace Tempus_Test