Thyra_VectorTester.hpp

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// ***********************************************************************
// 
//    Thyra: Interfaces and Support for Abstract Numerical Algorithms
//                 Copyright (2004) Sandia Corporation
// 
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
// 
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
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// This library is distributed in the hope that it will be useful, but
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//  
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// Questions? Contact Michael A. Heroux (maherou@sandia.gov) 
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#ifndef THYRA_VECTOR_TESTER_HPP
#define THYRA_VECTOR_TESTER_HPP

#include "Thyra_VectorTesterDecl.hpp"

namespace Thyra {

template<class Scalar>
VectorTester<Scalar>::VectorTester(
  const ScalarMag     warning_tol
  ,const ScalarMag    error_tol
  ,const int          num_random_vectors
  ,const bool         show_all_tests
  ,const bool         dump_all
  )
  :warning_tol_(warning_tol)
  ,error_tol_(error_tol)
  ,num_random_vectors_(num_random_vectors)
  ,show_all_tests_(show_all_tests)
  ,dump_all_(dump_all)
{
  multiVectorTester_.warning_tol(warning_tol);
  multiVectorTester_.error_tol(error_tol);
  multiVectorTester_.num_random_vectors(num_random_vectors);
  multiVectorTester_.show_all_tests(show_all_tests);
  multiVectorTester_.dump_all(dump_all);
}

template<class Scalar>
bool VectorTester<Scalar>::check(
  const VectorBase<Scalar>       &v
  ,Teuchos::FancyOStream         *out_arg
  ) const
{

  using std::endl;
  using Teuchos::describe;
  using Teuchos::FancyOStream;
  using Teuchos::OSTab;
  typedef Teuchos::ScalarTraits<Scalar> ST;
  typedef typename ST::magnitudeType    ScalarMag;

  Teuchos::RCP<FancyOStream> out = Teuchos::rcp(out_arg,false);
  const Teuchos::EVerbosityLevel verbLevel = (dump_all()?Teuchos::VERB_EXTREME:Teuchos::VERB_MEDIUM);

  OSTab tab(out,1,"THYRA");

  bool result, success = true;

  if(out.get()) *out <<endl<< "*** Entering Thyra::VectorTester<"<<ST::name()<<">::check(v,...) ...\n";

  if(out.get()) *out <<endl<< "Testing a VectorBase object described as:\n" << describe(v,verbLevel);

  if(out.get()) *out <<endl<< "A) Creating temporary vector t1, t2, t3, and t4 from v.space() ...\n";
  Teuchos::RCP<const Thyra::VectorSpaceBase<Scalar> >
    vs = v.space();
  Teuchos::RCP<Thyra::VectorBase<Scalar> >
    t1 = createMember(vs), t2 = createMember(vs), t3 = createMember(vs), t4 = createMember(vs);

  if(out.get()) *out <<endl<< "B) Testing VectorBase::applyOp(...) by calling a few standard RTOp operations ... ";

  const Scalar
    one   = ST::one(),
    two   = Scalar(2)*one,
    three = Scalar(3)*one;

  {
    
    std::ostringstream oss;
    bool these_results = true;
    
    oss <<endl<< "assign(&*t1,2.0) ...\n";
    Thyra::assign( &*t1, two );
    if(dump_all()) oss <<endl<< "\nt1 =\n" << describe(*t1,verbLevel);
    
    result = testRelErr(
      "sum(t1)",sum(*t1),"2*vs->dim()",two*Scalar(vs->dim())
      ,"error_tol()",error_tol(),"warning_tol()",warning_tol()
      ,&oss
      );
    if(!result) these_results = false;
    
    oss <<endl<< "assign(&*t2,3.0) ...\n";
    Thyra::assign( &*t2, three );
    if(dump_all()) oss <<endl<< "t2 =\n" << *t1;
    
    result = testRelErr(
      "sum(t2)",sum(*t2),"3*vs->dim()",three*Scalar(vs->dim())
      ,"error_tol()",error_tol(),"warning_tol()",warning_tol()
      ,&oss
      );
    if(!result) these_results = false;
    
    result = testRelErr(
      "vs->scalarProd(*t1,*t2)",vs->scalarProd(*t1,*t2),"2*3*vs->dim()",two*three*Scalar(vs->dim())
      ,"error_tol()",error_tol(),"warning_tol()",warning_tol()
      ,&oss
      );
    if(!result) these_results = false;

    printTestResults(these_results,oss.str(),show_all_tests(),&success,out.get());

  }
    
  // ToDo: Test the rest of the specific VectorBase interface on v1

  if(out.get()) *out <<endl<< "C) Checking the MultiVectorBase interface of v ...\n";
  result = multiVectorTester_.check(v,out.get());
  if(!result) success = false;

  if(out.get()) *out <<endl<< "*** Leaving Thyra::VectorTester<"<<ST::name()<<">::check(v,...) ...\n";
  
  return success;

}

} // namespace Thyra

#endif // THYRA_VECTOR_TESTER_HPP

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