Mesh Oriented datABase  (version 5.5.1)
An array-based unstructured mesh library
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
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
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
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
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)
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)
118 
119 #ifdef MOAB_HAVE_MPI
120  MPI_Finalize();
121 #endif
122 
123  return 0;
124 }