/****************************************************************************
 * NCSA HDF								    *
 * Software Development Group						    *
 * National Center for Supercomputing Applications			    *
 * University of Illinois at Urbana-Champaign				    *
 * 605 E. Springfield, Champaign IL 61820				    *
 *									    *
 * For conditions of distribution and use, see the accompanying		    *
 * hdf/COPYING file.							    *
 *									    *
 ****************************************************************************/

/* $Id$ */

/***********************************************************
*
* Test program:	 tmisc
*
* Test miscellaneous features not tested elsewhere.  Generally
*       regression tests for bugs that are reported and don't
*       have an existing test to add them to.
*
*************************************************************/

#include "hdf5.h"
#include "testhdf5.h"

#define FILE	"tmisc.h5"

/* Definitions for misc. test #1 */
#define MISC1_VAL       (13417386)      /* 0xccbbaa */
#define MISC1_VAL2      (15654348)      /* 0xeeddcc */
#define MISC1_DSET_NAME "/scalar_set"

/****************************************************************
**
**  test_misc1(): test unlinking a dataset from a group and immediately
**                      re-using the dataset name
**
****************************************************************/
static void
test_misc1(void)
{
    int i;
    int i_check;
    hid_t file, dataspace, dataset;
    herr_t ret;

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Unlinking Dataset and Re-creating It\n"));

    file = H5Fcreate(FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(file, FAIL, "H5Fcreate");

    dataspace = H5Screate(H5S_SCALAR);
    CHECK(dataspace, FAIL, "H5Screate");

    /* Write the dataset the first time. */
    dataset = H5Dcreate(file, MISC1_DSET_NAME, H5T_NATIVE_INT, dataspace, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate");

    i = MISC1_VAL;
    ret = H5Dwrite(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &i);
    CHECK(ret, FAIL, "H5Dwrite");

    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Remove the dataset. */
    ret = H5Gunlink(file, MISC1_DSET_NAME);
    CHECK(ret, FAIL, "H5Gunlink");

    /* Write the dataset for the second time with a different value. */
    dataset = H5Dcreate(file, MISC1_DSET_NAME, H5T_NATIVE_INT, dataspace, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate");

    i = MISC1_VAL2;
    ret = H5Dwrite(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &i);
    CHECK(ret, FAIL, "H5Dwrite");

    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    ret = H5Sclose(dataspace);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Fclose(file);
    CHECK(ret, FAIL, "H5Fclose");

    /* Now, check the value written to the dataset, after it was re-created */
    file = H5Fopen(FILE, H5F_ACC_RDONLY, H5P_DEFAULT);
    CHECK(file, FAIL, "H5Fopen");

    dataspace = H5Screate(H5S_SCALAR);
    CHECK(dataspace, FAIL, "H5Screate");

    dataset = H5Dopen(file, MISC1_DSET_NAME);
    CHECK(dataset, FAIL, "H5Dopen");

    ret = H5Dread(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &i_check);
    CHECK(ret, FAIL, "H5Dread");
    VERIFY(i_check,MISC1_VAL2,"H5Dread");

    ret = H5Sclose(dataspace);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    ret = H5Fclose(file);
    CHECK(ret, FAIL, "H5Fclose");

} /* end test_misc1() */

/****************************************************************
**
**  test_misc(): Main misc. test routine.
** 
****************************************************************/
void 
test_misc(void)
{
    /* Output message about test being performed */
    MESSAGE(5, ("Testing Miscellaneous Routines\n"));

    /* Various tests, using the same test file */
    test_misc1();       /* Test unlinking a dataset & immediately re-using name */

} /* test_misc() */


/*-------------------------------------------------------------------------
 * Function:	cleanup_misc
 *
 * Purpose:	Cleanup temporary test files
 *
 * Return:	none
 *
 * Programmer:	Albert Cheng
 *              July 2, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
void
cleanup_misc(void)
{
    remove(FILE);
}