TestErrorHandling.cpp

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    1 /** @example TestErrorHandling.cpp \n
    2  * Description: This example tests MOAB's trace back error handler in serial. \n
    3  *
    4  * <b>To run</b>: ./TestErrorHandling <test_case_num(1 to 4)> \n
    5  */
    6  
    7 #include "moab/Core.hpp"
    8 #ifdef MOAB_HAVE_MPI
    9 #include "moab_mpi.h"
   10 #endif
   11  
   12 #include <iostream>
   13  
   14 using namespace moab;
   15 using namespace std;
   16  
   17 // In this test case, an error MB_NOT_IMPLEMENTED is returned by MOAB
   18 ErrorCode TestErrorHandling_1()
   19 {
   20     Core moab;
   21     Interface& mb = moab;
   22  
   23     // Load a CAM-FV file and read a variable on edges (not supported yet)
   24     string test_file = string( MESH_DIR ) + string( "/io/fv3x46x72.t.3.nc" );
   25     ErrorCode rval   = mb.load_file( test_file.c_str(), NULL, "VARIABLE=US" );MB_CHK_ERR( rval );
   26  
   27     return MB_SUCCESS;
   28 }
   29  
   30 // In this test case, an error MB_TYPE_OUT_OF_RANGE is returned by MOAB
   31 ErrorCode TestErrorHandling_2()
   32 {
   33     Core moab;
   34     Interface& mb = moab;
   35  
   36     // Load a HOMME file with an invalid GATHER_SET option
   37     string test_file = string( MESH_DIR ) + string( "/io/homme3x3458.t.3.nc" );
   38     ErrorCode rval   = mb.load_file( test_file.c_str(), NULL, "VARIABLE=T;GATHER_SET=0.1" );MB_CHK_ERR( rval );
   39  
   40     return MB_SUCCESS;
   41 }
   42  
   43 // In this test case, an error MB_FAILURE is returned by MOAB
   44 ErrorCode TestErrorHandling_3()
   45 {
   46     Core moab;
   47     Interface& mb = moab;
   48  
   49     // Load a CAM-FV file with NOMESH option and a NULL file set
   50     string test_file = string( MESH_DIR ) + string( "/io/fv3x46x72.t.3.nc" );
   51     ErrorCode rval   = mb.load_file( test_file.c_str(), NULL, "NOMESH;VARIABLE=" );MB_CHK_ERR( rval );
   52  
   53     return MB_SUCCESS;
   54 }
   55  
   56 // In this test case, an error MB_VARIABLE_DATA_LENGTH is returned by MOAB
   57 ErrorCode TestErrorHandling_4()
   58 {
   59     Core moab;
   60     Interface& mb = moab;
   61  
   62     // Create 100 vertices
   63     const int NUM_VTX = 100;
   64     vector< double > coords( 3 * NUM_VTX );
   65     Range verts;
   66     ErrorCode rval = mb.create_vertices( &coords[0], NUM_VTX, verts );MB_CHK_SET_ERR( rval, "Failed to create vertices" );
   67  
   68     // Create a variable-length dense tag
   69     Tag tag;
   70     rval = mb.tag_get_handle( "var_len_den", 1, MB_TYPE_INTEGER, tag, MB_TAG_VARLEN | MB_TAG_DENSE | MB_TAG_CREAT );MB_CHK_SET_ERR( rval, "Failed to create a tag" );
   71  
   72     // Attempt to iterate over a variable-length tag, which will never be possible
   73     void* ptr = NULL;
   74     int count = 0;
   75     rval      = mb.tag_iterate( tag, verts.begin(), verts.end(), count, ptr );MB_CHK_SET_ERR( rval, "Failed to iterate over tag on " << NUM_VTX << " vertices" );
   76  
   77     return MB_SUCCESS;
   78 }
   79  
   80 int main( int argc, char** argv )
   81 {
   82     if( argc < 2 )
   83     {
   84         cout << "Usage: " << argv[0] << " <test_case_num(1 to 4)>" << endl;
   85         return 0;
   86     }
   87  
   88 #ifdef MOAB_HAVE_MPI
   89     MPI_Init( &argc, &argv );
   90 #endif
   91  
   92     // Initialize error handler, optional for this example (using moab instances)
   93     MBErrorHandler_Init();
   94  
   95     ErrorCode rval = MB_SUCCESS;
   96  
   97     int test_case_num = atoi( argv[1] );
   98     switch( test_case_num )
   99     {
  100         case 1:
  101             rval = TestErrorHandling_1();MB_CHK_ERR( rval );
  102             break;
  103         case 2:
  104             rval = TestErrorHandling_2();MB_CHK_ERR( rval );
  105             break;
  106         case 3:
  107             rval = TestErrorHandling_3();MB_CHK_ERR( rval );
  108             break;
  109         case 4:
  110             rval = TestErrorHandling_4();MB_CHK_ERR( rval );
  111             break;
  112         default:
  113             break;
  114     }
  115  
  116     // Finalize error handler, optional for this example (using moab instances)
  117     MBErrorHandler_Finalize();
  118  
  119 #ifdef MOAB_HAVE_MPI
  120     MPI_Finalize();
  121 #endif
  122  
  123     return 0;
  124 }