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156 lines
4.7 KiB
C
156 lines
4.7 KiB
C
/* This is part of the netCDF package.
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Copyright 2005 University Corporation for Atmospheric Research/Unidata
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See COPYRIGHT file for conditions of use.
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Test data conversions and fill value handling.
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$Id: tst_converts.c,v 1.16 2008/10/20 01:48:09 ed Exp $
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*/
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#include <nc_tests.h>
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#include "netcdf.h"
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#define FILE_NAME "tst_converts.nc"
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#define ATT1_NAME "att1"
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#define ATT2_NAME "att2"
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#define DIM1_NAME "dim1"
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#define DIM1_LEN 3
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#define DIM2_NAME "dim2"
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#define DIM2_LEN 15
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#define VAR1_NAME "var1"
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#define VAR2_NAME "var2"
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/* This is handy for print statements. */
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static char *format_name[] = {"", "classic", "64-bit offset", "netCDF-4",
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"netCDF-4 classic model"};
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int check_file(int format, unsigned char *uchar_out);
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int create_file(int format, unsigned char *uchar_out);
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int
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main(int argc, char **argv)
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{
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unsigned char uchar_out[DIM1_LEN] = {0, 128, 255};
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int format;
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printf("\n*** Testing netcdf data conversion.\n");
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for (format = 1; format < 5; format++)
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{
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printf("*** Testing conversion in netCDF %s files... ", format_name[format]);
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create_file(format, uchar_out);
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check_file(format, uchar_out);
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SUMMARIZE_ERR;
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}
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FINAL_RESULTS;
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}
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/* Create a test file with one var of type NC_BYTE. */
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int
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create_file(int format, unsigned char *uchar_out)
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{
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int ncid, varid, cflags=0, dimids[1];
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int retval;
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if (format == NC_FORMAT_64BIT_OFFSET)
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cflags |= NC_64BIT_OFFSET;
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else if (format == NC_FORMAT_CDF5)
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cflags |= NC_CDF5;
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else if (format == NC_FORMAT_NETCDF4_CLASSIC)
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{
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cflags |= (NC_NETCDF4|NC_CLASSIC_MODEL);
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}
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else if (format == NC_FORMAT_NETCDF4)
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cflags |= NC_NETCDF4;
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if (nc_create(FILE_NAME, cflags, &ncid)) ERR;
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if (nc_def_dim(ncid, DIM1_NAME, DIM1_LEN, &dimids[0])) ERR;
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if (nc_def_var(ncid, VAR1_NAME, NC_BYTE, 1, dimids, &varid)) ERR;
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if (nc_enddef(ncid)) ERR;
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retval = nc_put_var_uchar(ncid, varid, uchar_out);
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if ((format != NC_FORMAT_NETCDF4) && retval) ERR;
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if ((format == NC_FORMAT_NETCDF4) && (retval != NC_ERANGE)) ERR;
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if (nc_close(ncid)) ERR;
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return NC_NOERR;
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}
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int
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check_file(int format, unsigned char *uchar_out)
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{
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int ncid;
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int ndims, natts;
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int dimids_var[1], var_type;
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char var_name[NC_MAX_NAME+1];
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unsigned char uchar_in[DIM1_LEN];
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signed char char_in[DIM1_LEN];
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unsigned short ushort_in[DIM1_LEN];
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short short_in[DIM1_LEN];
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unsigned int uint_in[DIM1_LEN];
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int int_in[DIM1_LEN];
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long long int64_in[DIM1_LEN];
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unsigned long long uint64_in[DIM1_LEN];
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int i, res;
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/* Read it back in, and check conversions. */
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if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
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if (nc_inq_var(ncid, 0, var_name, &var_type, &ndims, dimids_var, &natts)) ERR;
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if (strcmp(var_name, VAR1_NAME) || natts !=0 || ndims != 1 ||
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dimids_var[0] != 0 || var_type != NC_BYTE) ERR;
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/* This is actually an NC_BYTE, with some negatives, so this should
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* generate a range error for netcdf-4, but not for netcdf-3,
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* because range errors are not generated for byte type
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* conversions. */
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res = nc_get_var_uchar(ncid, 0, uchar_in);
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if (format == NC_FORMAT_NETCDF4)
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{
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if (res != NC_ERANGE) ERR;
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}
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else if (res) ERR;
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for (i=0; i<DIM1_LEN; i++)
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if (uchar_in[i] != uchar_out[i]) ERR;
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if (nc_get_var_schar(ncid, 0, char_in)) ERR;
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for (i=0; i<DIM1_LEN; i++)
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if (char_in[i] != (signed char)uchar_out[i]) ERR;
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if (nc_get_var_short(ncid, 0, short_in)) ERR;
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for (i=0; i<DIM1_LEN; i++)
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if (short_in[i] != (signed char)uchar_out[i]) ERR;
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if (nc_get_var_int(ncid, 0, int_in)) ERR;
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for (i=0; i<DIM1_LEN; i++)
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if (int_in[i] != (signed char)uchar_out[i]) ERR;
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if (format == NC_FORMAT_NETCDF4 || format == NC_FORMAT_NETCDF4_CLASSIC)
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{
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/* Since we wrote them as NC_BYTE, some of these are negative
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* values, and will return a range error when reading into
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* unsigned type. To compare values, first cast uchar_out to
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* signed int, then cast again to the type we are reading it
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* as. */
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if (nc_get_var_ushort(ncid, 0, ushort_in) != NC_ERANGE) ERR;
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for (i=0; i<DIM1_LEN; i++)
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if (ushort_in[i] != (unsigned short)(signed char)uchar_out[i]) ERR;
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if (nc_get_var_uint(ncid, 0, uint_in) != NC_ERANGE) ERR;
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for (i=0; i<DIM1_LEN; i++)
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if (uint_in[i] != (unsigned int)(signed char)uchar_out[i]) ERR;
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if (nc_get_var_ulonglong(ncid, 0, uint64_in) != NC_ERANGE) ERR;
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for (i=0; i<DIM1_LEN; i++)
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if (uint64_in[i] != (unsigned long long)(signed char)uchar_out[i]) ERR;
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if (nc_get_var_longlong(ncid, 0, int64_in)) ERR;
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for (i=0; i<DIM1_LEN; i++)
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if (int64_in[i] != (signed char)uchar_out[i]) ERR;
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}
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if (nc_close(ncid)) ERR;
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return 0;
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}
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