netcdf-c/nc_test4/tst_dims3.c

/* This is part of the netCDF package. Copyright 2018 University
   Corporation for Atmospheric Research/Unidata See COPYRIGHT file for
   conditions of use. See www.unidata.ucar.edu for more info.

   Test netcdf-4 dimensions inheritance.

   $Id: tst_dims3.c,v 1.7 2010/05/25 13:53:04 ed Exp $
*/

#include <config.h>
#include <nc_tests.h>
#include "err_macros.h"

int
main(int argc, char **argv)
{
   printf("\n*** Testing netcdf-4 dimensions even more.\n");
   printf("*** testing netcdf-4 dimension inheritance...");
   {
#define FILE_NAME "tst_dims3.nc"
#define RANK_time 1
#define GRP_NAME  "G"
#define GRP2_NAME "G2"
#define TIME_NAME "time"
#define VAR2_NAME "z"
#define TIME_RANK 1
#define NUM_TIMES 2
#define LEV_NAME "level"
#define VRT_NAME "vert_number"
#define LEV_NUM  3
#define LEV_RANK 1
#define VRT_RANK 1
#define VAR2_RANK 2
#define NUM_VRT 3
      int ncid, grpid;
      int time_dim, time_dim_in;
      int time_var, z_var;
      size_t len;
      int time_data[NUM_TIMES] = {1, 2} ;
      size_t time_startset[TIME_RANK] = {0} ;
      size_t time_countset[TIME_RANK] = {NUM_TIMES} ;

      /* Create file with unlimited dim and associated coordinate
       * variable in root group, another variable that uses unlimited
       * dim in subgroup. */
      if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
      if (nc_def_grp(ncid, GRP_NAME, &grpid)) ERR;
      if (nc_def_dim(ncid, TIME_NAME, NC_UNLIMITED, &time_dim)) ERR;
      if (nc_def_var(ncid, TIME_NAME, NC_INT, TIME_RANK, &time_dim,
		     &time_var)) ERR;
      if (nc_def_var(grpid, VAR2_NAME, NC_INT, TIME_RANK, &time_dim,
		     &z_var)) ERR;
      if (nc_enddef(ncid)) ERR;

      /* Assign data to time variable, creating two times */
      if (nc_put_vara(ncid, time_dim, time_startset, time_countset,
		      time_data)) ERR;

      /* Check the dim len from the root group */
      if (nc_inq_dimlen(ncid, time_dim, &len)) ERR;
      if (len != NUM_TIMES) ERR;

      /* Check the dim len from the sub group */
      if (nc_inq_dimlen(grpid, time_dim, &len)) ERR;
      if (len != NUM_TIMES) ERR;
      if (nc_close(ncid)) ERR;

      /* Now check how many times there are from the subgroup */
      if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
      if (nc_inq_ncid(ncid, GRP_NAME, &grpid)) ERR;
      if (nc_inq_dimid(ncid, TIME_NAME, &time_dim)) ERR;

      /* Check the dim len from the root group */
      if (nc_inq_dimlen(ncid, time_dim, &len)) ERR;
      if (len != NUM_TIMES) ERR;

      /* Check the dim len from the sub group */
      if (nc_inq_dimlen(grpid, time_dim, &len)) ERR;
      if (len != NUM_TIMES) ERR;

      /* Find the dimension by name. */
      if (nc_inq_dimid(grpid, TIME_NAME, &time_dim_in)) ERR;
      if (time_dim_in != time_dim) ERR;

      if (nc_close(ncid)) ERR;
   }
   SUMMARIZE_ERR;
   printf("*** testing a scalar coordinate dimension...");
   {
      int ncid, dimid, varid;
      float data = 42.5;

      /* Create a scalar coordinate dimension. The only reason that
       * the user can ever possibly have for doing this is just
       * because they like to make life difficult for poor, poor
       * netCDF programmers, trapped in this horrible place, in a
       * Rocky Mountain valley, drenched in sunlight, with a stream
       * quietly gurgling, deer feeding on the grasses, and all those
       * damn birds chirping! */
      if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR_RET;
      if (nc_def_dim(ncid, "scalar", 0, &dimid)) ERR_RET;
      if (nc_def_var(ncid, "scalar", NC_FLOAT, 0, &dimid, &varid)) ERR_RET;
      if (nc_put_var_float(ncid, varid, &data)) ERR_RET;
      if (nc_close(ncid))
	ERR_RET;
   }
   SUMMARIZE_ERR;
   printf("*** testing defining dimensions and coord variables in different orders in root group...");
   {
       int ncid, grpid, grp2id;
       int time_dimid, lev_dimid, g2lev_dimid, g2vrt_dimid;
       int time_dimid_in, lev_dimid_in, g2lev_dimid_in, g2vrt_dimid_in;
       int time_varid, lev_varid, gvar2_varid, g2lev_varid, g2vrt_varid;
       int var2_dims[VAR2_RANK];
      /* Create test for fix of bug that resulted in two dimensions
       * having the same dimid, which violates the Pauli exclusion
       * principle for dimensions. */
      if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR_RET;
      if (nc_def_grp(ncid, GRP_NAME, &grpid)) ERR;
      if (nc_def_dim(ncid, TIME_NAME, NC_UNLIMITED, &time_dimid)) ERR_RET;
      if (nc_def_dim(ncid, LEV_NAME, LEV_NUM, &lev_dimid)) ERR_RET;
      var2_dims[0] = time_dimid;
      var2_dims[1] = lev_dimid;
      if (nc_def_var(grpid, VAR2_NAME, NC_FLOAT, VAR2_RANK, var2_dims, &gvar2_varid)) ERR;
      /* define coord vars in opposite order of coord dims */
      if (nc_def_var(ncid, LEV_NAME, NC_FLOAT, LEV_RANK, &lev_dimid, &lev_varid)) ERR;
      if (nc_def_var(ncid, TIME_NAME, NC_FLOAT, TIME_RANK, &time_dimid, &time_varid)) ERR;

      if (nc_def_grp(ncid, GRP2_NAME, &grp2id)) ERR;
      if (nc_def_dim(grp2id, LEV_NAME, LEV_NUM, &g2lev_dimid)) ERR_RET;
      if (nc_def_dim(grp2id, VRT_NAME, NUM_VRT, &g2vrt_dimid)) ERR_RET;
      if (nc_def_var(grp2id, LEV_NAME, NC_FLOAT, LEV_RANK, &g2lev_dimid, &g2lev_varid)) ERR;
      if (nc_def_var(grp2id, VRT_NAME, NC_FLOAT, VRT_RANK, &g2vrt_dimid, &g2vrt_varid)) ERR;
      if (nc_close(ncid)) ERR;

      /* Re-open, in which dimids may get reassigned */
      if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
      if (nc_inq_dimid(ncid, TIME_NAME, &time_dimid_in)) ERR;
      if (nc_inq_dimid(ncid, LEV_NAME, &lev_dimid_in)) ERR;
      if (nc_inq_ncid(ncid, GRP2_NAME, &grp2id)) ERR;
      if (nc_inq_dimid(grp2id, LEV_NAME, &g2lev_dimid_in)) ERR;
      if (nc_inq_dimid(grp2id, VRT_NAME, &g2vrt_dimid_in)) ERR;
      /* dimids must still all be distinct */
      if (time_dimid_in == lev_dimid_in ||
	  time_dimid_in == g2lev_dimid_in ||
	  time_dimid_in == g2vrt_dimid_in ||
	  lev_dimid_in == g2lev_dimid_in ||
	  lev_dimid_in == g2vrt_dimid_in ||
	  g2lev_dimid_in == g2vrt_dimid_in) ERR;

      if (nc_close(ncid))
	ERR_RET;
   }
   SUMMARIZE_ERR;
   printf("*** testing defining dimensions and coord variables in different orders in subgroup...");
   {
       int ncid, grpid, grp2id;
       int time_dimid, lev_dimid, g2lev_dimid, g2vrt_dimid;
       int time_dimid_in, lev_dimid_in, g2lev_dimid_in, g2vrt_dimid_in;
       int time_varid, lev_varid, gvar2_varid, g2lev_varid, g2vrt_varid;
       int var2_dims[VAR2_RANK];
      /* Create test for fix of bug inside a subgroup that results in two dimensions
       * having the same dimid. */
      if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR_RET;
      if (nc_def_grp(ncid, GRP_NAME, &grpid)) ERR;
      if (nc_def_dim(ncid, TIME_NAME, NC_UNLIMITED, &time_dimid)) ERR_RET;
      if (nc_def_dim(ncid, LEV_NAME, LEV_NUM, &lev_dimid)) ERR_RET;
      var2_dims[0] = time_dimid;
      var2_dims[1] = lev_dimid;
      if (nc_def_var(grpid, VAR2_NAME, NC_FLOAT, VAR2_RANK, var2_dims, &gvar2_varid)) ERR;
      if (nc_def_var(ncid, TIME_NAME, NC_FLOAT, TIME_RANK, &time_dimid, &time_varid)) ERR;
      if (nc_def_var(ncid, LEV_NAME, NC_FLOAT, LEV_RANK, &lev_dimid, &lev_varid)) ERR;

      if (nc_def_grp(ncid, GRP2_NAME, &grp2id)) ERR;
      if (nc_def_dim(grp2id, LEV_NAME, LEV_NUM, &g2lev_dimid)) ERR_RET;
      if (nc_def_dim(grp2id, VRT_NAME, NUM_VRT, &g2vrt_dimid)) ERR_RET;
      /* define coord vars in opposite order of coord dims */
      if (nc_def_var(grp2id, VRT_NAME, NC_FLOAT, VRT_RANK, &g2vrt_dimid, &g2vrt_varid)) ERR;
      if (nc_def_var(grp2id, LEV_NAME, NC_FLOAT, LEV_RANK, &g2lev_dimid, &g2lev_varid)) ERR;
      if (nc_close(ncid)) ERR;

      /* Re-open, in which dimids may get reassigned */
      if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
      if (nc_inq_dimid(ncid, TIME_NAME, &time_dimid_in)) ERR;
      if (nc_inq_dimid(ncid, LEV_NAME, &lev_dimid_in)) ERR;
      if (nc_inq_ncid(ncid, GRP2_NAME, &grp2id)) ERR;
      if (nc_inq_dimid(grp2id, LEV_NAME, &g2lev_dimid_in)) ERR;
      if (nc_inq_dimid(grp2id, VRT_NAME, &g2vrt_dimid_in)) ERR;
      /* dimids must still all be distinct */
      if (time_dimid_in == lev_dimid_in ||
	  time_dimid_in == g2lev_dimid_in ||
	  time_dimid_in == g2vrt_dimid_in ||
	  lev_dimid_in == g2lev_dimid_in ||
	  lev_dimid_in == g2vrt_dimid_in ||
	  g2lev_dimid_in == g2vrt_dimid_in) ERR;

      if (nc_close(ncid))
	ERR_RET;
   }
   SUMMARIZE_ERR;
   FINAL_RESULTS;
}