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|
/* This is part of the netCDF package. Copyright 2006-2018 University
Corporation for Atmospheric Research/Unidata. See COPYRIGHT file
for conditions of use.
Test the netCDF-4 attribute code.
Ed Hartnett
*/
#include <config.h>
#include <nc_tests.h>
#include "err_macros.h"
#include "hdf5internal.h"
/* The data file we will create. */
#define FILE_NAME "tst_atts.nc"
/* Names of attributes. */
#define OLD_NAME "Constantinople"
#define OLD_NAME_2 "Constantinopolis"
#define NEW_NAME "Istanbul"
/* Contents of attributes. */
#define CONTENTS "Lots of people!"
#define CONTENTS_2 "Lots of people!!" /* 1 longer than CONTENTS */
#define CONTENTS_3 "Lots 0f pe0ple!" /* same len as CONTENTS */
#define VAR_NAME "Earth"
/**
WARNING: following should match lists in libsrc4/nc4file.c
*/
/**
* @internal Define the names of attributes to ignore added by the
* HDF5 dimension scale; these attached to variables. They cannot be
* modified thru the netcdf-4 API.
*/
static const char* NC_RESERVED_VARATT_LIST[] = {
NC_ATT_REFERENCE_LIST,
NC_ATT_CLASS,
NC_ATT_DIMENSION_LIST,
NC_ATT_NAME,
NC_ATT_COORDINATES,
NC_DIMID_ATT_NAME,
NULL
};
/**
* @internal Define the names of attributes to ignore because they are
* "hidden" global attributes. They can be read, but not modified thru
* the netcdf-4 API.
*/
static const char* NC_RESERVED_ATT_LIST[] = {
NC_ATT_FORMAT,
NC3_STRICT_ATT_NAME,
NCPROPS,
ISNETCDF4ATT,
SUPERBLOCKATT,
NULL
};
/**
* @internal Define the subset of the reserved list that is readable
* by name only
*/
static const char* NC_RESERVED_SPECIAL_LIST[] = {
ISNETCDF4ATT,
SUPERBLOCKATT,
NCPROPS,
NULL
};
int
main(int argc, char **argv)
{
printf("\n*** Testing netCDF-4 attributes.\n");
printf("*** testing attribute renaming for read-only file...");
{
int ncid;
/* Create a file with an att. */
if (nc_create(FILE_NAME, NC_NETCDF4|NC_CLOBBER, &ncid)) ERR;
if (nc_put_att_text(ncid, NC_GLOBAL, OLD_NAME, strlen(CONTENTS),
CONTENTS)) ERR;
if (nc_close(ncid)) ERR;
/* Reopen the file read-only. */
if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
/* Try to rename the att, but it won't work. */
if (nc_rename_att(ncid, NC_GLOBAL, OLD_NAME, NEW_NAME) != NC_EPERM) ERR;
/* Try to create another att, it also won't work. */
if (nc_put_att_text(ncid, NC_GLOBAL, OLD_NAME_2, strlen(CONTENTS),
CONTENTS) != NC_EPERM) ERR;
/* Try to delete the att. More failure ensues. */
if (nc_del_att(ncid, NC_GLOBAL, OLD_NAME) != NC_EPERM) ERR;
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("*** testing deleting atts...");
{
int ncid;
int natts;
/* Create a file with two atts. */
if (nc_create(FILE_NAME, NC_NETCDF4|NC_CLOBBER, &ncid)) ERR;
if (nc_put_att_text(ncid, NC_GLOBAL, OLD_NAME, strlen(CONTENTS),
CONTENTS)) ERR;
if (nc_put_att_text(ncid, NC_GLOBAL, OLD_NAME_2, 0, NULL)) ERR;
/* These will not work. */
if (nc_del_att(ncid + TEST_VAL_42, NC_GLOBAL, OLD_NAME) != NC_EBADID) ERR;
if (nc_del_att(ncid, TEST_VAL_42, OLD_NAME) != NC_ENOTVAR) ERR;
if (nc_del_att(ncid, NC_GLOBAL, NULL) != NC_EINVAL) ERR;
if (nc_del_att(ncid, NC_GLOBAL, NEW_NAME) != NC_ENOTATT) ERR;
/* End define mode. It redef will be called automatically. */
if (nc_enddef(ncid)) ERR;
/* Delete the attribute. */
if (nc_del_att(ncid, NC_GLOBAL, OLD_NAME)) ERR;
if (nc_close(ncid)) ERR;
/* Reopen the file. */
if (nc_open(FILE_NAME, 0, &ncid)) ERR;
if (nc_inq_natts(ncid, &natts)) ERR;
if (natts != 1) ERR;
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("*** testing deleting atts classic model...");
{
int ncid;
int natts;
/* Create a file with an att. */
if (nc_create(FILE_NAME, NC_NETCDF4|NC_CLASSIC_MODEL, &ncid)) ERR;
if (nc_put_att_text(ncid, NC_GLOBAL, OLD_NAME, strlen(CONTENTS),
CONTENTS)) ERR;
/* End define mode. */
if (nc_enddef(ncid)) ERR;
/* This will not work. */
if (nc_del_att(ncid, NC_GLOBAL, OLD_NAME) != NC_ENOTINDEFINE) ERR;
/* Delete the attribute. Redef is needed since this is a classic
* model file. */
if (nc_redef(ncid)) ERR;
if (nc_del_att(ncid, NC_GLOBAL, OLD_NAME)) ERR;
if (nc_close(ncid)) ERR;
/* Reopen the file. */
if (nc_open(FILE_NAME, 0, &ncid)) ERR;
if (nc_inq_natts(ncid, &natts)) ERR;
if (natts) ERR;
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("*** testing over-writing atts classic model...");
{
int ncid;
int natts;
char *data_in;
if (!(data_in = malloc(strlen(CONTENTS) + 1))) ERR;
/* Create a file with an att. */
if (nc_create(FILE_NAME, NC_NETCDF4|NC_CLASSIC_MODEL, &ncid)) ERR;
if (nc_put_att_text(ncid, NC_GLOBAL, OLD_NAME, strlen(CONTENTS),
CONTENTS)) ERR;
/* End define mode. */
if (nc_enddef(ncid)) ERR;
/* Try and write a new att. Won't work. */
if (nc_put_att_text(ncid, NC_GLOBAL, OLD_NAME_2, strlen(CONTENTS_2),
CONTENTS_2) != NC_ENOTINDEFINE) ERR;
/* This will not work. Overwriting att must be same length or
* shorter if not in define mode. */
if (nc_put_att_text(ncid, NC_GLOBAL, OLD_NAME, strlen(CONTENTS_2),
CONTENTS_2) != NC_ENOTINDEFINE) ERR;
/* Now overwrite the att. */
if (nc_put_att_text(ncid, NC_GLOBAL, OLD_NAME, strlen(CONTENTS_3),
CONTENTS_3)) ERR;
/* Delete the attribute. Redef is needed since this is a classic
* model file. This should work but does not. */
if (nc_redef(ncid)) ERR;
if (nc_del_att(ncid, NC_GLOBAL, OLD_NAME)) ERR;
if (nc_close(ncid)) ERR;
/* Reopen the file. */
if (nc_open(FILE_NAME, 0, &ncid)) ERR;
if (nc_inq_natts(ncid, &natts)) ERR;
/* If delete worked, natts would be 0. */
/* if (natts != 0) ERR; */
if (natts != 1) ERR;
/* Get the attribute. */
if (nc_get_att_text(ncid, NC_GLOBAL, OLD_NAME, data_in)) ERR;
/* if (strncmp(CONTENTS_3, data_in, strlen(CONTENTS))) ERR; */
free(data_in);
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("*** testing attribute renaming for a global attribute...");
{
int ncid, attid;
char *data_in;
char too_long_name[NC_MAX_NAME + 2];
char name_in[NC_MAX_NAME + 1];
/* Set up a name that is too long for netCDF. */
memset(too_long_name, 'a', NC_MAX_NAME + 1);
too_long_name[NC_MAX_NAME + 1] = 0;
if (!(data_in = malloc(strlen(CONTENTS) + 1))) ERR;
/* Create a file with an att. */
if (nc_create(FILE_NAME, NC_NETCDF4|NC_CLOBBER, &ncid)) ERR;
if (nc_def_var(ncid, VAR_NAME, NC_INT, 0, NULL, NULL)) ERR;
/* These will not work. */
if (nc_put_att_text(ncid + TEST_VAL_42, NC_GLOBAL, OLD_NAME,
strlen(CONTENTS), CONTENTS) != NC_EBADID) ERR;
if (nc_put_att_text(ncid, TEST_VAL_42, OLD_NAME, strlen(CONTENTS),
CONTENTS) != NC_ENOTVAR) ERR;
if (nc_put_att_text(ncid, NC_GLOBAL, NULL, strlen(CONTENTS),
CONTENTS) != NC_EBADNAME) ERR;
if (nc_put_att_text(ncid, NC_GLOBAL, BAD_NAME, strlen(CONTENTS),
CONTENTS) != NC_EBADNAME) ERR;
if (nc_put_att_text(ncid, NC_GLOBAL, too_long_name, strlen(CONTENTS),
CONTENTS) != NC_EBADNAME) ERR;
if (nc_put_att_text(ncid, NC_GLOBAL, OLD_NAME, strlen(CONTENTS),
NULL) != NC_EINVAL) ERR;
{
/* Check that the NC_GLOBAL reserved words are rejected. */
const char** reserved = NC_RESERVED_ATT_LIST;
for ( ; *reserved; reserved++)
{
if (nc_put_att_text(ncid, NC_GLOBAL, *reserved, strlen(CONTENTS),
CONTENTS) != NC_ENAMEINUSE) ERR;
}
}
{
/* Check that the variable reserved words are rejected. */
const char** reserved = NC_RESERVED_VARATT_LIST;
for ( ; *reserved; reserved++)
{
if (nc_put_att_text(ncid, 0, *reserved, strlen(CONTENTS),
CONTENTS) != NC_ENAMEINUSE) ERR;
}
}
{
/* Check that the read-only reserved words are rejected. */
const char** reserved = NC_RESERVED_SPECIAL_LIST;
for ( ; *reserved; reserved++)
{
if (nc_put_att_text(ncid, NC_GLOBAL, *reserved, strlen(CONTENTS),
CONTENTS) != NC_ENAMEINUSE) ERR;
}
}
/* Write the attribute at last. */
if (nc_put_att_text(ncid, NC_GLOBAL, OLD_NAME, strlen(CONTENTS),
CONTENTS)) ERR;
/* Write another with different name. */
if (nc_put_att_text(ncid, NC_GLOBAL, OLD_NAME_2, strlen(CONTENTS),
CONTENTS)) ERR;
/* These will not work. */
if (nc_rename_att(ncid + TEST_VAL_42, NC_GLOBAL, OLD_NAME, NEW_NAME) != NC_EBADID) ERR;
if (nc_rename_att(ncid, TEST_VAL_42, OLD_NAME, NEW_NAME) != NC_ENOTVAR) ERR;
if (nc_rename_att(ncid, NC_GLOBAL, OLD_NAME, NULL) != NC_EINVAL) ERR;
if (nc_rename_att(ncid, NC_GLOBAL, NULL, NEW_NAME) != NC_EINVAL) ERR;
if (nc_rename_att(ncid, NC_GLOBAL, NULL, NULL) != NC_EINVAL) ERR;
if (nc_rename_att(ncid, NC_GLOBAL, OLD_NAME, BAD_NAME) != NC_EBADNAME) ERR;
if (nc_rename_att(ncid, NC_GLOBAL, OLD_NAME, too_long_name) != NC_EMAXNAME) ERR;
if (nc_rename_att(ncid, NC_GLOBAL, OLD_NAME, OLD_NAME_2) != NC_ENAMEINUSE) ERR;
if (nc_put_att_text(ncid, NC_GLOBAL, OLD_NAME, strlen(CONTENTS),
NULL) != NC_EINVAL) ERR;
{
/* Check that the NC_GLOBAL reserved words are rejected. */
const char** reserved = NC_RESERVED_ATT_LIST;
for ( ; *reserved; reserved++)
{
if (nc_put_att_text(ncid, NC_GLOBAL, *reserved, strlen(CONTENTS),
CONTENTS) != NC_ENAMEINUSE) ERR;
}
}
{
/* Check that the variable reserved words are rejected. */
const char** reserved = NC_RESERVED_VARATT_LIST;
for ( ; *reserved; reserved++)
{
if (nc_put_att_text(ncid, 0, *reserved, strlen(CONTENTS),
CONTENTS) != NC_ENAMEINUSE) ERR;
}
}
{
/* Check that the read-only reserved words are rejected. */
const char** reserved = NC_RESERVED_SPECIAL_LIST;
for ( ; *reserved; reserved++)
{
if (nc_put_att_text(ncid, NC_GLOBAL, *reserved, strlen(CONTENTS),
CONTENTS) != NC_ENAMEINUSE) ERR;
}
}
/* Write the attribute at last. */
if (nc_put_att_text(ncid, NC_GLOBAL, OLD_NAME, strlen(CONTENTS),
CONTENTS)) ERR;
/* Write another with different name. */
if (nc_put_att_text(ncid, NC_GLOBAL, OLD_NAME_2, strlen(CONTENTS),
CONTENTS)) ERR;
/* These will not work. */
if (nc_rename_att(ncid + TEST_VAL_42, NC_GLOBAL, OLD_NAME, NEW_NAME) != NC_EBADID) ERR;
if (nc_rename_att(ncid, TEST_VAL_42, OLD_NAME, NEW_NAME) != NC_ENOTVAR) ERR;
if (nc_rename_att(ncid, NC_GLOBAL, OLD_NAME, NULL) != NC_EINVAL) ERR;
if (nc_rename_att(ncid, NC_GLOBAL, NULL, NEW_NAME) != NC_EINVAL) ERR;
if (nc_rename_att(ncid, NC_GLOBAL, NULL, NULL) != NC_EINVAL) ERR;
if (nc_rename_att(ncid, NC_GLOBAL, OLD_NAME, BAD_NAME) != NC_EBADNAME) ERR;
if (nc_rename_att(ncid, NC_GLOBAL, OLD_NAME, too_long_name) != NC_EMAXNAME) ERR;
if (nc_rename_att(ncid, NC_GLOBAL, OLD_NAME, OLD_NAME_2) != NC_ENAMEINUSE) ERR;
/* Rename the att. */
if (nc_rename_att(ncid, NC_GLOBAL, OLD_NAME, NEW_NAME)) ERR;
/* These will not work. */
if (nc_inq_attid(ncid + TEST_VAL_42, NC_GLOBAL, NEW_NAME, &attid) != NC_EBADID) ERR;
if (nc_inq_attid(ncid, TEST_VAL_42, NEW_NAME, &attid) != NC_ENOTVAR) ERR;
if (nc_inq_attid(ncid, NC_GLOBAL, NULL, &attid) != NC_EBADNAME) ERR;
/* Check the file. */
if (nc_inq_attid(ncid, NC_GLOBAL, NEW_NAME, &attid)) ERR;
if (attid != 0) ERR;
/* This also works. */
if (nc_inq_attid(ncid, NC_GLOBAL, NEW_NAME, NULL)) ERR;
/* These won't work. */
if (nc_inq_attname(ncid + TEST_VAL_42, NC_GLOBAL, attid, name_in) != NC_EBADID) ERR;
if (nc_inq_attname(ncid, TEST_VAL_42, attid, name_in) != NC_ENOTVAR) ERR;
if (nc_inq_attname(ncid, NC_GLOBAL, -1, name_in) != NC_ENOTATT) ERR;
/* Get the name from the ID. */
if (nc_inq_attname(ncid, NC_GLOBAL, attid, name_in)) ERR;
if (strcmp(name_in, NEW_NAME)) ERR;
/* Also works but does little. */
if (nc_inq_attname(ncid, NC_GLOBAL, attid, NULL)) ERR;
/* These will not work. */
if (nc_get_att_text(ncid + TEST_VAL_42, NC_GLOBAL, NEW_NAME, data_in) != NC_EBADID) ERR;
if (nc_get_att_text(ncid, TEST_VAL_42, NEW_NAME, data_in) != NC_ENOTVAR) ERR;
if (nc_get_att_text(ncid, NC_GLOBAL, NULL, data_in) != NC_EBADNAME) ERR;
/* Get the attribute at last. */
if (nc_get_att_text(ncid, NC_GLOBAL, NEW_NAME, data_in)) ERR;
if (strncmp(CONTENTS, data_in, strlen(CONTENTS))) ERR;
/* This also works. */
if (nc_get_att_text(ncid, NC_GLOBAL, NEW_NAME, NULL)) ERR;
if (nc_close(ncid)) ERR;
/* Reopen the file and check again. */
if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
if (nc_inq_attid(ncid, NC_GLOBAL, NEW_NAME, &attid)) ERR;
if (attid != 0) ERR;
if (nc_get_att_text(ncid, NC_GLOBAL, NEW_NAME, data_in)) ERR;
if (strncmp(CONTENTS, data_in, strlen(CONTENTS))) ERR;
if (nc_close(ncid)) ERR;
free(data_in);
}
SUMMARIZE_ERR;
printf("*** testing attribute renaming for a variable attribute...");
{
#define OLD_NAME1 "Constantinople"
#define NEW_NAME1 "Istanbul____________"
#define CONTENTS1 "Lots of people!"
int ncid, attid, varid;
char *data_in;
if (!(data_in = malloc(strlen(CONTENTS1) + 1))) ERR;
/* Create a file with an att. */
if (nc_create(FILE_NAME, NC_NETCDF4|NC_CLOBBER, &ncid)) ERR;
if (nc_def_var(ncid, VAR_NAME, NC_INT, 0, NULL, &varid)) ERR;
if (nc_put_att_text(ncid, varid, OLD_NAME1, strlen(CONTENTS1),
CONTENTS1)) ERR;
/* Rename the att. */
if (nc_rename_att(ncid, varid, OLD_NAME1, NEW_NAME1)) ERR;
/* Check the file. */
if (nc_inq_attid(ncid, varid, NEW_NAME1, &attid)) ERR;
if (attid != 0) ERR;
if (nc_get_att_text(ncid, varid, NEW_NAME1, data_in)) ERR;
if (strncmp(CONTENTS1, data_in, strlen(CONTENTS1))) ERR;
if (nc_close(ncid)) ERR;
/* Reopen the file and check again. */
if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
if (nc_inq_attid(ncid, varid, NEW_NAME1, &attid)) ERR;
if (attid != 0) ERR;
if (nc_get_att_text(ncid, varid, NEW_NAME1, data_in)) ERR;
if (strncmp(CONTENTS1, data_in, strlen(CONTENTS1))) ERR;
if (nc_close(ncid)) ERR;
free(data_in);
}
SUMMARIZE_ERR;
printf("*** testing modification of an attribute 2^16 times (changing size)...");
{
/* This test documents that if the size of an attribute changes
* from one modification to the next we have to delete and
* re-create it, incrementing HDF5's attribute creation order
* index. In this case after about 2^16 modifications this
* index reaches its maximum, making it impossible to modify
* this file's metadata because nc_enddef() will fail. */
int ncid = -1, i = -1, error_code = NC_NOERR;
int data[2] = {1, 2};
/* Create a file. Note that we use a different file name here
* because we will not be able to close this file. */
if (nc_create("tst_att_modification.nc", NC_NETCDF4|NC_CLOBBER, &ncid)) ERR;
if (nc_enddef(ncid)) ERR;
/* Modify an attribute 2^16 times. */
for (i = 0; i < 65536; ++i)
{
if (nc_redef(ncid)) ERR;
/* Note that the attribute size changes every time. */
if (nc_put_att_int(ncid, NC_GLOBAL, "attribute", NC_INT,
1 + i % 2, data)) ERR;
/* nc_enddef() synchronizes attributes. */
error_code = nc_enddef(ncid);
/* After a number of iterations nc_enddef() will fail with
* NC_EATTMETA. */
if (error_code == NC_EATTMETA)
break;
/* Catch other errors. */
if (error_code != NC_NOERR) ERR;
}
/* nc_close() will fail too: just like nc_enddef() it tries to
* write dirty attributes to disc. */
if (nc_close(ncid) != NC_EATTMETA) ERR;
/* In this test reaching the end of the loop without encountering
* NC_EATTMETA is a failure. */
if (error_code != NC_EATTMETA) ERR;
}
SUMMARIZE_ERR;
printf("*** testing modification of a scalar attribute 2^16 times (same type and size)...");
{
/* This test ensures that a scalar attribute can be modified
* 2^16 times as long as its type and size remain the same. */
int ncid = -1, i = -1;
/* Create a file. */
if (nc_create(FILE_NAME, NC_NETCDF4|NC_CLOBBER, &ncid)) ERR;
if (nc_enddef(ncid)) ERR;
/* Modify an attribute 2^16 times. */
for (i = 0; i < 65536; ++i)
{
if (nc_redef(ncid)) ERR;
/* All built-in attribute types except for NC_CHAR (but
* including NC_STRING) use the same logic so it is enough
* to test nc_put_att_int(). */
if (nc_put_att_int(ncid, NC_GLOBAL, "attribute", NC_INT, 1, &i)) ERR;
/* nc_enddef() synchronizes attributes. */
if (nc_enddef(ncid)) ERR;
}
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("*** testing modification of a text attribute 2^16 times (same size)...");
{
/* This test ensures that a text attribute can be modified
* 2^16 times as long as its size remains the same. */
int ncid = -1, i = -1;
const char *string = "test string"; /* 11 characters */
/* Create a file. */
if (nc_create(FILE_NAME, NC_NETCDF4|NC_CLOBBER, &ncid)) ERR;
if (nc_enddef(ncid)) ERR;
/* Modify an attribute 2^16 times. */
for (i = 0; i < 65536; ++i)
{
if (nc_redef(ncid)) ERR;
if (nc_put_att_text(ncid, NC_GLOBAL, "attribute", 11, string)) ERR;
/* nc_enddef() synchronizes attributes */
if (nc_enddef(ncid)) ERR;
}
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
FINAL_RESULTS;
}
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