ParameterList_UnitTest_Parallel.cpp

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#include "Teuchos_ParameterList.hpp"
#include "Teuchos_XMLParameterListHelpers.hpp"
#include "Teuchos_DefaultComm.hpp"
#include "Teuchos_CommHelpers.hpp"

#include "Teuchos_UnitTestHarness.hpp"


namespace Teuchos {


TEUCHOS_UNIT_TEST( Teuchos_ParameterList, xmlUpdateAndBroadcast ) {
  const RCP<const Comm<int> > comm = DefaultComm<int>::getComm();
  // Test the broadcast functionality to avoid unscalable I/O collisions
  std::string inputFile="input.xml";
  ParameterList A;
  ParameterList B;
  updateParametersFromXmlFile(inputFile, outArg(A));
  updateParametersFromXmlFileAndBroadcast(inputFile, outArg(B), *comm);
  out << "B = " << B;
  TEST_ASSERT( B.begin() != B.end() ); // Avoid false positive from empty lists

  // See if any process returned a failed (i.e. a non-zero local_failed)
  const int local_failed = !(A == B);
  int global_failed = -1;
  reduceAll(*comm, Teuchos::REDUCE_SUM, local_failed, outArg(global_failed));
  TEST_EQUALITY_CONST(global_failed, 0);
}


} // namespace Teuchos