/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * All rights reserved.                                                      *
 *                                                                           *
 * This file is part of HDF5.  The full HDF5 copyright notice, including     *
 * terms governing use, modification, and redistribution, is contained in    *
 * the LICENSE file, which can be found at the root of the source code       *
 * distribution tree, or in https://www.hdfgroup.org/licenses.               *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

package test;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

import java.util.ArrayList;

import hdf.hdf5lib.H5;
import hdf.hdf5lib.HDF5Constants;
import hdf.hdf5lib.callbacks.H5O_iterate_opdata_t;
import hdf.hdf5lib.callbacks.H5O_iterate_t;
import hdf.hdf5lib.exceptions.HDF5LibraryException;
import hdf.hdf5lib.structs.H5O_hdr_info_t;
import hdf.hdf5lib.structs.H5O_info_t;
import hdf.hdf5lib.structs.H5O_native_info_t;
import hdf.hdf5lib.structs.H5O_token_t;
import hdf.hdf5lib.structs.H5_ih_info_t;

import org.junit.After;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TestName;

public class TestH5Obasic {
    @Rule
    public TestName testname            = new TestName();
    private static final String H5_FILE = "h5ex_g_iterateO1.hdf";
    private static H5O_token_t H5la_ds1 = null;
    private static H5O_token_t H5la_l1  = null;
    long H5fid                          = HDF5Constants.H5I_INVALID_HID;

    @Before
    public void openH5file() throws HDF5LibraryException, NullPointerException
    {
        assertTrue("H5 open ids is 0", H5.getOpenIDCount() == 0);
        System.out.print(testname.getMethodName());

        try {
            H5fid = H5.H5Fopen(H5_FILE, HDF5Constants.H5F_ACC_RDONLY, HDF5Constants.H5P_DEFAULT);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Fopen: openH5file: " + err);
        }
    }

    @After
    public void closeH5file() throws HDF5LibraryException
    {
        if (H5fid > 0) {
            try {
                H5.H5Fclose(H5fid);
            }
            catch (Exception ex) {
            }
        }
        System.out.println();
    }

    @Test(expected = HDF5LibraryException.class)
    public void testH5Oopen_not_exists() throws Throwable
    {
        long oid = HDF5Constants.H5I_INVALID_HID;

        oid = H5.H5Oopen(H5fid, "Never_created", HDF5Constants.H5P_DEFAULT);

        try {
            H5.H5Oclose(oid);
        }
        catch (Exception ex) {
        }
    }

    @Test
    public void testH5Oget_info_dataset()
    {
        long oid            = HDF5Constants.H5I_INVALID_HID;
        H5O_info_t obj_info = null;

        try {
            oid      = H5.H5Oopen(H5fid, "DS1", HDF5Constants.H5P_DEFAULT);
            obj_info = H5.H5Oget_info(oid);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Oget_info: " + err);
        }
        assertFalse("H5Oget_info ", obj_info == null);
        assertTrue("H5Oget_info object type", obj_info.type == HDF5Constants.H5O_TYPE_DATASET);
        try {
            H5.H5Oclose(oid);
        }
        catch (Exception ex) {
        }
    }

    @Test
    public void testH5Oget_info_hardlink()
    {
        long oid            = HDF5Constants.H5I_INVALID_HID;
        H5O_info_t obj_info = null;
        try {
            oid      = H5.H5Oopen(H5fid, "L1", HDF5Constants.H5P_DEFAULT);
            obj_info = H5.H5Oget_info(oid);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Oget_info: " + err);
        }
        assertFalse("H5Oget_info ", obj_info == null);
        assertTrue("H5Oget_info object type", obj_info.type == HDF5Constants.H5O_TYPE_DATASET);
        try {
            H5.H5Oclose(oid);
        }
        catch (Exception ex) {
        }
    }

    @Test
    public void testH5Oget_info_group()
    {
        long oid            = HDF5Constants.H5I_INVALID_HID;
        H5O_info_t obj_info = null;
        try {
            oid      = H5.H5Oopen(H5fid, "G1", HDF5Constants.H5P_DEFAULT);
            obj_info = H5.H5Oget_info(oid);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Oget_info: " + err);
        }
        assertFalse("H5Oget_info ", obj_info == null);
        assertTrue("H5Oget_info object type", obj_info.type == HDF5Constants.H5O_TYPE_GROUP);
        try {
            H5.H5Oclose(oid);
        }
        catch (Exception ex) {
        }
    }

    @Test
    public void testH5Oget_info_datatype()
    {
        long oid            = HDF5Constants.H5I_INVALID_HID;
        H5O_info_t obj_info = null;
        try {
            oid      = H5.H5Oopen(H5fid, "DT1", HDF5Constants.H5P_DEFAULT);
            obj_info = H5.H5Oget_info(oid);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Oget_info: " + err);
        }
        assertFalse("H5Oget_info ", obj_info == null);
        assertTrue("H5Oget_info object type", obj_info.type == HDF5Constants.H5O_TYPE_NAMED_DATATYPE);
        try {
            H5.H5Oclose(oid);
        }
        catch (Exception ex) {
        }
    }

    @Test(expected = HDF5LibraryException.class)
    public void testH5Oget_info_by_name_not_exist_name() throws Throwable
    {
        H5.H5Oget_info_by_name(H5fid, "None", HDF5Constants.H5P_DEFAULT);
    }

    @Test(expected = HDF5LibraryException.class)
    public void testH5Oget_info_by_name_not_exists() throws Throwable
    {
        H5.H5Oget_info_by_name(H5fid, "Bogus", HDF5Constants.H5P_DEFAULT);
    }

    @Test
    public void testH5Oget_info_by_name_dataset()
    {
        H5O_info_t obj_info = null;

        try {
            obj_info = H5.H5Oget_info_by_name(H5fid, "DS1", HDF5Constants.H5P_DEFAULT);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Oget_info: " + err);
        }
        assertFalse("H5Oget_info ", obj_info == null);
        assertTrue("H5Oget_info object type", obj_info.type == HDF5Constants.H5O_TYPE_DATASET);
    }

    @Test
    public void testH5Oget_info_by_name_hardlink()
    {
        H5O_info_t obj_info = null;
        try {
            obj_info = H5.H5Oget_info_by_name(H5fid, "L1", HDF5Constants.H5P_DEFAULT);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Oget_info: " + err);
        }
        assertFalse("H5Oget_info ", obj_info == null);
        assertTrue("H5Oget_info object type", obj_info.type == HDF5Constants.H5O_TYPE_DATASET);
    }

    @Test
    public void testH5Oget_info_by_name_group()
    {
        H5O_info_t obj_info = null;
        try {
            obj_info = H5.H5Oget_info_by_name(H5fid, "G1", HDF5Constants.H5P_DEFAULT);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Oget_info: " + err);
        }
        assertFalse("H5Oget_info ", obj_info == null);
        assertTrue("H5Oget_info object type", obj_info.type == HDF5Constants.H5O_TYPE_GROUP);
    }

    @Test
    public void testH5Oget_info_by_name_datatype()
    {
        H5O_info_t obj_info = null;
        try {
            obj_info = H5.H5Oget_info_by_name(H5fid, "DT1", HDF5Constants.H5P_DEFAULT);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Oget_info: " + err);
        }
        assertFalse("H5Oget_info ", obj_info == null);
        assertTrue("H5Oget_info object type", obj_info.type == HDF5Constants.H5O_TYPE_NAMED_DATATYPE);
    }

    @Test(expected = HDF5LibraryException.class)
    public void testH5Oget_info_by_idx_name_not_exist_name() throws Throwable
    {
        H5.H5Oget_info_by_idx(H5fid, "None", HDF5Constants.H5_INDEX_NAME, HDF5Constants.H5_ITER_INC, 0,
                              HDF5Constants.H5P_DEFAULT);
    }

    @Test(expected = HDF5LibraryException.class)
    public void testH5Oget_info_by_idx_name_not_exist_create() throws Throwable
    {
        H5.H5Oget_info_by_idx(H5fid, "None", HDF5Constants.H5_INDEX_CRT_ORDER, HDF5Constants.H5_ITER_INC, 0,
                              HDF5Constants.H5P_DEFAULT);
    }

    @Test(expected = HDF5LibraryException.class)
    public void testH5Oget_info_by_idx_not_exist_name() throws Throwable
    {
        H5.H5Oget_info_by_idx(H5fid, "/", HDF5Constants.H5_INDEX_NAME, HDF5Constants.H5_ITER_INC, 5,
                              HDF5Constants.H5P_DEFAULT);
    }

    @Test(expected = HDF5LibraryException.class)
    public void testH5Oget_info_by_idx_not_exist_create() throws Throwable
    {
        H5.H5Oget_info_by_idx(H5fid, "/", HDF5Constants.H5_INDEX_CRT_ORDER, HDF5Constants.H5_ITER_INC, 5,
                              HDF5Constants.H5P_DEFAULT);
    }

    @Test
    public void testH5Oget_info_by_idx_n0()
    {
        long oid            = HDF5Constants.H5I_INVALID_HID;
        H5O_info_t obj_info = null;
        try {
            oid      = H5.H5Oopen(H5fid, "DS1", HDF5Constants.H5P_DEFAULT);
            obj_info = H5.H5Oget_info(oid);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("testH5Oget_info_by_idx_n0:H5.H5Oget_info: " + err);
        }
        H5la_ds1 = obj_info.token;
        try {
            H5.H5Oclose(oid);
        }
        catch (Exception ex) {
        }
        try {
            obj_info = H5.H5Oget_info_by_idx(H5fid, "/", HDF5Constants.H5_INDEX_NAME,
                                             HDF5Constants.H5_ITER_INC, 0, HDF5Constants.H5P_DEFAULT);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("testH5Oget_info_by_idx_n0:H5.H5Oget_info_by_idx: " + err);
        }
        assertFalse("testH5Oget_info_by_idx_n0:H5Oget_info_by_idx ", obj_info == null);
        assertTrue("testH5Oget_info_by_idx_n0:H5Oget_info_by_idx link type",
                   obj_info.type == HDF5Constants.H5O_TYPE_DATASET);
        assertTrue("testH5Oget_info_by_idx_n0:Link Object token", obj_info.token.equals(H5la_ds1));
    }

    @Test
    public void testH5Oget_info_by_idx_n3()
    {
        long oid            = HDF5Constants.H5I_INVALID_HID;
        H5O_info_t obj_info = null;
        try {
            oid      = H5.H5Oopen(H5fid, "L1", HDF5Constants.H5P_DEFAULT);
            obj_info = H5.H5Oget_info(oid);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("testH5Oget_info_by_idx_n3:H5.H5Oget_info: " + err);
        }
        H5la_l1 = obj_info.token;
        try {
            H5.H5Oclose(oid);
        }
        catch (Exception ex) {
        }
        try {
            obj_info = H5.H5Oget_info_by_idx(H5fid, "/", HDF5Constants.H5_INDEX_NAME,
                                             HDF5Constants.H5_ITER_INC, 3, HDF5Constants.H5P_DEFAULT);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("testH5Oget_info_by_idx_n3:H5.H5Oget_info_by_idx: " + err);
        }
        assertFalse("testH5Oget_info_by_idx_n3:H5Oget_info_by_idx ", obj_info == null);
        assertTrue("testH5Oget_info_by_idx_n3:H5Oget_info_by_idx link type",
                   obj_info.type == HDF5Constants.H5O_TYPE_DATASET);
        assertTrue("testH5Oget_info_by_idx_n3:Link Object Token", obj_info.token.equals(H5la_l1));
    }

    @Test
    public void testH5Oget_native_info_dataset()
    {
        long oid                      = HDF5Constants.H5I_INVALID_HID;
        H5O_native_info_t native_info = null;

        try {
            oid         = H5.H5Oopen(H5fid, "DS1", HDF5Constants.H5P_DEFAULT);
            native_info = H5.H5Oget_native_info(oid);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Oget_native_info: " + err);
        }
        assertFalse("H5Oget_native_info ", native_info == null);
        assertFalse("H5Oget_native_info ", native_info.hdr_info == null);
        assertFalse("H5Oget_native_info ", native_info.obj_info == null);
        assertFalse("H5Oget_native_info ", native_info.attr_info == null);
        try {
            H5.H5Oclose(oid);
        }
        catch (Exception ex) {
        }
    }

    @Test
    public void testH5Oget_native_info_hardlink()
    {
        long oid                      = HDF5Constants.H5I_INVALID_HID;
        H5O_native_info_t native_info = null;

        try {
            oid         = H5.H5Oopen(H5fid, "L1", HDF5Constants.H5P_DEFAULT);
            native_info = H5.H5Oget_native_info(oid);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Oget_native_info: " + err);
        }
        assertFalse("H5Oget_native_info ", native_info == null);
        assertFalse("H5Oget_native_info ", native_info.hdr_info == null);
        assertFalse("H5Oget_native_info ", native_info.obj_info == null);
        assertFalse("H5Oget_native_info ", native_info.attr_info == null);
        try {
            H5.H5Oclose(oid);
        }
        catch (Exception ex) {
        }
    }

    @Test
    public void testH5Oget_native_info_group()
    {
        long oid                      = HDF5Constants.H5I_INVALID_HID;
        H5O_native_info_t native_info = null;

        try {
            oid         = H5.H5Oopen(H5fid, "G1", HDF5Constants.H5P_DEFAULT);
            native_info = H5.H5Oget_native_info(oid);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Oget_native_info: " + err);
        }
        assertFalse("H5Oget_native_info ", native_info == null);
        assertFalse("H5Oget_native_info ", native_info.hdr_info == null);
        assertFalse("H5Oget_native_info ", native_info.obj_info == null);
        assertFalse("H5Oget_native_info ", native_info.attr_info == null);
        try {
            H5.H5Oclose(oid);
        }
        catch (Exception ex) {
        }
    }

    @Test
    public void testH5Oget_native_info_datatype()
    {
        long oid                      = HDF5Constants.H5I_INVALID_HID;
        H5O_native_info_t native_info = null;

        try {
            oid         = H5.H5Oopen(H5fid, "DT1", HDF5Constants.H5P_DEFAULT);
            native_info = H5.H5Oget_native_info(oid);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Oget_native_info: " + err);
        }
        assertFalse("H5Oget_native_info ", native_info == null);
        assertFalse("H5Oget_native_info ", native_info.hdr_info == null);
        assertFalse("H5Oget_native_info ", native_info.obj_info == null);
        assertFalse("H5Oget_native_info ", native_info.attr_info == null);
        try {
            H5.H5Oclose(oid);
        }
        catch (Exception ex) {
        }
    }

    @Test(expected = HDF5LibraryException.class)
    public void testH5Oget_native_info_by_name_not_exist_name() throws Throwable
    {
        H5.H5Oget_native_info_by_name(H5fid, "None", HDF5Constants.H5P_DEFAULT);
    }

    @Test(expected = HDF5LibraryException.class)
    public void testH5Oget_native_info_by_name_not_exists() throws Throwable
    {
        H5.H5Oget_native_info_by_name(H5fid, "Bogus", HDF5Constants.H5P_DEFAULT);
    }

    @Test
    public void testH5Oget_native_info_by_name_dataset()
    {
        H5O_native_info_t native_info = null;

        try {
            native_info = H5.H5Oget_native_info_by_name(H5fid, "DS1", HDF5Constants.H5P_DEFAULT);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Oget_native_info_by_name: " + err);
        }
        assertFalse("H5Oget_native_info_by_name ", native_info == null);
        assertFalse("H5Oget_native_info_by_name ", native_info.hdr_info == null);
        assertFalse("H5Oget_native_info_by_name ", native_info.obj_info == null);
        assertFalse("H5Oget_native_info_by_name ", native_info.attr_info == null);
    }

    @Test
    public void testH5Oget_native_info_by_name_hardlink()
    {
        H5O_native_info_t native_info = null;

        try {
            native_info = H5.H5Oget_native_info_by_name(H5fid, "L1", HDF5Constants.H5P_DEFAULT);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Oget_native_info_by_name: " + err);
        }
        assertFalse("H5Oget_native_info_by_name ", native_info == null);
        assertFalse("H5Oget_native_info_by_name ", native_info.hdr_info == null);
        assertFalse("H5Oget_native_info_by_name ", native_info.obj_info == null);
        assertFalse("H5Oget_native_info_by_name ", native_info.attr_info == null);
    }

    @Test
    public void testH5Oget_native_info_by_name_group()
    {
        H5O_native_info_t native_info = null;

        try {
            native_info = H5.H5Oget_native_info_by_name(H5fid, "G1", HDF5Constants.H5P_DEFAULT);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Oget_native_info_by_name: " + err);
        }
        assertFalse("H5Oget_native_info_by_name ", native_info == null);
        assertFalse("H5Oget_native_info_by_name ", native_info.hdr_info == null);
        assertFalse("H5Oget_native_info_by_name ", native_info.obj_info == null);
        assertFalse("H5Oget_native_info_by_name ", native_info.attr_info == null);
    }

    @Test
    public void testH5Oget_native_info_by_name_datatype()
    {
        H5O_native_info_t native_info = null;

        try {
            native_info = H5.H5Oget_native_info_by_name(H5fid, "DT1", HDF5Constants.H5P_DEFAULT);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Oget_native_info_by_name: " + err);
        }
        assertFalse("H5Oget_native_info_by_name ", native_info == null);
        assertFalse("H5Oget_native_info_by_name ", native_info.hdr_info == null);
        assertFalse("H5Oget_native_info_by_name ", native_info.obj_info == null);
        assertFalse("H5Oget_native_info_by_name ", native_info.attr_info == null);
    }

    @Test(expected = HDF5LibraryException.class)
    public void testH5Oget_native_info_by_idx_name_not_exist_name() throws Throwable
    {
        H5.H5Oget_native_info_by_idx(H5fid, "None", HDF5Constants.H5_INDEX_NAME, HDF5Constants.H5_ITER_INC, 0,
                                     HDF5Constants.H5P_DEFAULT);
    }

    @Test(expected = HDF5LibraryException.class)
    public void testH5Oget_native_info_by_idx_name_not_exist_create() throws Throwable
    {
        H5.H5Oget_native_info_by_idx(H5fid, "None", HDF5Constants.H5_INDEX_CRT_ORDER,
                                     HDF5Constants.H5_ITER_INC, 0, HDF5Constants.H5P_DEFAULT);
    }

    @Test(expected = HDF5LibraryException.class)
    public void testH5Oget_native_info_by_idx_not_exist_name() throws Throwable
    {
        H5.H5Oget_native_info_by_idx(H5fid, "/", HDF5Constants.H5_INDEX_NAME, HDF5Constants.H5_ITER_INC, 5,
                                     HDF5Constants.H5P_DEFAULT);
    }

    @Test(expected = HDF5LibraryException.class)
    public void testH5Oget_native_info_by_idx_not_exist_create() throws Throwable
    {
        H5.H5Oget_native_info_by_idx(H5fid, "/", HDF5Constants.H5_INDEX_CRT_ORDER, HDF5Constants.H5_ITER_INC,
                                     5, HDF5Constants.H5P_DEFAULT);
    }

    @Test
    public void testH5Oget_native_info_by_idx_n0()
    {
        long oid                      = HDF5Constants.H5I_INVALID_HID;
        H5O_native_info_t native_info = null;
        H5O_hdr_info_t ohdr;
        H5_ih_info_t oinfo;
        H5_ih_info_t ainfo;

        try {
            oid         = H5.H5Oopen(H5fid, "DS1", HDF5Constants.H5P_DEFAULT);
            native_info = H5.H5Oget_native_info(oid);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("testH5Oget_native_info_by_idx_n0:H5.H5Oget_native_info: " + err);
        }

        ohdr  = native_info.hdr_info;
        oinfo = native_info.obj_info;
        ainfo = native_info.attr_info;

        try {
            H5.H5Oclose(oid);
        }
        catch (Exception ex) {
        }

        try {
            native_info =
                H5.H5Oget_native_info_by_idx(H5fid, "/", HDF5Constants.H5_INDEX_NAME,
                                             HDF5Constants.H5_ITER_INC, 0, HDF5Constants.H5P_DEFAULT);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("testH5Oget_native_info_by_idx_n0:H5.H5Oget_native_info_by_idx: " + err);
        }
        assertFalse("H5Oget_native_info_by_idx ", native_info == null);
        assertFalse("H5Oget_native_info_by_idx ", native_info.hdr_info == null);
        assertFalse("H5Oget_native_info_by_idx ", native_info.obj_info == null);
        assertFalse("H5Oget_native_info_by_idx ", native_info.attr_info == null);
        assertTrue("testH5Oget_native_info_by_idx_n0:Object Header Info", native_info.hdr_info.equals(ohdr));
        assertTrue("testH5Oget_native_info_by_idx_n0:Object Info", native_info.obj_info.equals(oinfo));
        assertTrue("testH5Oget_native_info_by_idx_n0:Attribute Info", native_info.attr_info.equals(ainfo));
    }

    @Test
    public void testH5Oget_native_info_by_idx_n3()
    {
        long oid                      = HDF5Constants.H5I_INVALID_HID;
        H5O_native_info_t native_info = null;
        H5O_hdr_info_t ohdr;
        H5_ih_info_t oinfo;
        H5_ih_info_t ainfo;

        try {
            oid         = H5.H5Oopen(H5fid, "L1", HDF5Constants.H5P_DEFAULT);
            native_info = H5.H5Oget_native_info(oid);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("testH5Oget_native_info_by_idx_n3:H5.H5Oget_native_info: " + err);
        }

        ohdr  = native_info.hdr_info;
        oinfo = native_info.obj_info;
        ainfo = native_info.attr_info;

        try {
            H5.H5Oclose(oid);
        }
        catch (Exception ex) {
        }

        try {
            native_info =
                H5.H5Oget_native_info_by_idx(H5fid, "/", HDF5Constants.H5_INDEX_NAME,
                                             HDF5Constants.H5_ITER_INC, 3, HDF5Constants.H5P_DEFAULT);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("testH5Oget_native_info_by_idx_n3:H5.H5Oget_native_info_by_idx: " + err);
        }
        assertFalse("H5Oget_native_info_by_idx ", native_info == null);
        assertFalse("H5Oget_native_info_by_idx ", native_info.hdr_info == null);
        assertFalse("H5Oget_native_info_by_idx ", native_info.obj_info == null);
        assertFalse("H5Oget_native_info_by_idx ", native_info.attr_info == null);
        assertTrue("testH5Oget_native_info_by_idx_n3:Object Header Info", native_info.hdr_info.equals(ohdr));
        assertTrue("testH5Oget_native_info_by_idx_n3:Object Info", native_info.obj_info.equals(oinfo));
        assertTrue("testH5Oget_native_info_by_idx_n3:Attribute Info", native_info.attr_info.equals(ainfo));
    }

    @Test
    public void testH5Ovisit()
    {
        class idata {
            public String link_name = null;
            public int link_type    = -1;
            idata(String name, int type)
            {
                this.link_name = name;
                this.link_type = type;
            }
        }
        class H5O_iter_data implements H5O_iterate_opdata_t {
            public ArrayList<idata> iterdata = new ArrayList<idata>();
        }
        H5O_iterate_opdata_t iter_data = new H5O_iter_data();
        class H5O_iter_callback implements H5O_iterate_t {
            public int callback(long group, String name, H5O_info_t info, H5O_iterate_opdata_t op_data)
            {
                idata id = new idata(name, info.type);
                ((H5O_iter_data)op_data).iterdata.add(id);
                return 0;
            }
        }
        H5O_iterate_t iter_cb = new H5O_iter_callback();
        try {
            H5.H5Ovisit(H5fid, HDF5Constants.H5_INDEX_NAME, HDF5Constants.H5_ITER_INC, iter_cb, iter_data);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Ovisit: " + err);
        }
        assertFalse("H5Ovisit ", ((H5O_iter_data)iter_data).iterdata.isEmpty());
        assertTrue("H5Ovisit " + ((H5O_iter_data)iter_data).iterdata.size(),
                   ((H5O_iter_data)iter_data).iterdata.size() == 5);
        assertTrue("H5Ovisit " + (((H5O_iter_data)iter_data).iterdata.get(0)).link_name,
                   (((H5O_iter_data)iter_data).iterdata.get(0)).link_name.compareToIgnoreCase(".") == 0);
        assertTrue("H5Ovisit " + (((H5O_iter_data)iter_data).iterdata.get(1)).link_name,
                   (((H5O_iter_data)iter_data).iterdata.get(1)).link_name.compareToIgnoreCase("DS1") == 0);
        assertTrue("H5Ovisit " + (((H5O_iter_data)iter_data).iterdata.get(2)).link_name,
                   (((H5O_iter_data)iter_data).iterdata.get(2)).link_name.compareToIgnoreCase("DT1") == 0);
        assertTrue("H5Ovisit " + (((H5O_iter_data)iter_data).iterdata.get(3)).link_name,
                   (((H5O_iter_data)iter_data).iterdata.get(3)).link_name.compareToIgnoreCase("G1") == 0);
        assertTrue("H5Ovisit " + (((H5O_iter_data)iter_data).iterdata.get(4)).link_name,
                   (((H5O_iter_data)iter_data).iterdata.get(4)).link_name.compareToIgnoreCase("G1/DS2") == 0);
        //        assertTrue("H5Ovisit
        //        "+((idata)((H5O_iter_data)iter_data).iterdata.get(5)).link_name,((idata)((H5O_iter_data)iter_data).iterdata.get(5)).link_name.compareToIgnoreCase("L1")==0);
    }

    @Test
    public void testH5Ovisit_by_name()
    {
        class idata {
            public String link_name = null;
            public int link_type    = -1;
            idata(String name, int type)
            {
                this.link_name = name;
                this.link_type = type;
            }
        }
        class H5O_iter_data implements H5O_iterate_opdata_t {
            public ArrayList<idata> iterdata = new ArrayList<idata>();
        }
        H5O_iterate_opdata_t iter_data = new H5O_iter_data();
        class H5O_iter_callback implements H5O_iterate_t {
            public int callback(long group, String name, H5O_info_t info, H5O_iterate_opdata_t op_data)
            {
                idata id = new idata(name, info.type);
                ((H5O_iter_data)op_data).iterdata.add(id);
                return 0;
            }
        }
        H5O_iterate_t iter_cb = new H5O_iter_callback();
        try {
            H5.H5Ovisit_by_name(H5fid, "G1", HDF5Constants.H5_INDEX_NAME, HDF5Constants.H5_ITER_INC, iter_cb,
                                iter_data, HDF5Constants.H5P_DEFAULT);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Ovisit_by_name: " + err);
        }
        assertFalse("H5Ovisit_by_name ", ((H5O_iter_data)iter_data).iterdata.isEmpty());
        assertTrue("H5Ovisit_by_name " + ((H5O_iter_data)iter_data).iterdata.size(),
                   ((H5O_iter_data)iter_data).iterdata.size() == 2);
        assertTrue("H5Ovisit_by_name " + (((H5O_iter_data)iter_data).iterdata.get(0)).link_name,
                   (((H5O_iter_data)iter_data).iterdata.get(0)).link_name.compareToIgnoreCase(".") == 0);
        assertTrue("H5Ovisit_by_name " + (((H5O_iter_data)iter_data).iterdata.get(1)).link_name,
                   (((H5O_iter_data)iter_data).iterdata.get(1)).link_name.compareToIgnoreCase("DS2") == 0);
    }

    @Test
    public void testH5Oexists_by_name()
    {
        boolean name_exists = false;
        try {
            name_exists = H5.H5Oexists_by_name(H5fid, "G1", HDF5Constants.H5P_DEFAULT);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Oexists_by_name: " + err);
        }
        assertTrue("H5Oexists_by_name ", name_exists);
        // TODO get dangling link result
    }

    @Test
    public void testH5Oopen_by_token()
    {
        long oid            = HDF5Constants.H5I_INVALID_HID;
        H5O_info_t obj_info = null;
        try {
            try {
                oid      = H5.H5Oopen(H5fid, "DS1", HDF5Constants.H5P_DEFAULT);
                obj_info = H5.H5Oget_info(oid);
            }
            catch (Throwable err) {
                err.printStackTrace();
                fail("testH5Oopen_by_token: H5.H5Oget_info: " + err);
            }
            H5la_ds1 = obj_info.token;
            try {
                H5.H5Oclose(oid);
            }
            catch (Exception ex) {
            }
            try {
                oid = H5.H5Oopen_by_token(H5fid, H5la_ds1);
            }
            catch (Throwable err) {
                err.printStackTrace();
                fail("testH5Oopen_by_token: H5.H5Oopen_by_token: " + err);
            }
            try {
                obj_info = H5.H5Oget_info(oid);
            }
            catch (Throwable err) {
                err.printStackTrace();
                fail("testH5Oopen_by_token: H5.H5Oget_info: " + err);
            }
            assertFalse("testH5Oopen_by_token: H5Oget_info ", obj_info == null);
            assertTrue("testH5Oopen_by_token: H5Oget_info link type",
                       obj_info.type == HDF5Constants.H5O_TYPE_DATASET);
            assertTrue("testH5Oopen_by_token: Link Object Token", obj_info.token.equals(H5la_ds1));
        }
        finally {
            try {
                H5.H5Oclose(oid);
            }
            catch (Exception ex) {
            }
        }
    }

    @Test
    public void testH5Oopen_by_idx_n0()
    {
        long oid            = HDF5Constants.H5I_INVALID_HID;
        H5O_info_t obj_info = null;
        try {
            try {
                oid      = H5.H5Oopen(H5fid, "DS1", HDF5Constants.H5P_DEFAULT);
                obj_info = H5.H5Oget_info(oid);
            }
            catch (Throwable err) {
                err.printStackTrace();
                fail("testH5Oopen_by_idx_n0: H5.H5Oget_info: " + err);
            }
            H5la_ds1 = obj_info.token;
            try {
                H5.H5Oclose(oid);
            }
            catch (Exception ex) {
            }
            try {
                oid = H5.H5Oopen_by_idx(H5fid, "/", HDF5Constants.H5_INDEX_NAME, HDF5Constants.H5_ITER_INC, 0,
                                        HDF5Constants.H5P_DEFAULT);
            }
            catch (Throwable err) {
                err.printStackTrace();
                fail("testH5Oopen_by_idx_n0: H5.H5Oopen_by_idx: " + err);
            }
            try {
                obj_info = H5.H5Oget_info(oid);
            }
            catch (Throwable err) {
                err.printStackTrace();
                fail("testH5Oopen_by_idx_n0: H5.H5Oget_info_by_idx: " + err);
            }
            assertFalse("testH5Oopen_by_idx_n0: H5Oget_info_by_idx ", obj_info == null);
            assertTrue("testH5Oopen_by_idx_n0: H5Oget_info_by_idx link type",
                       obj_info.type == HDF5Constants.H5O_TYPE_DATASET);
            assertTrue("testH5Oopen_by_idx_n0: Link Object Token", obj_info.token.equals(H5la_ds1));
        }
        finally {
            try {
                H5.H5Oclose(oid);
            }
            catch (Exception ex) {
            }
        }
    }

    @Test
    public void testH5Oopen_by_idx_n3()
    {
        long oid            = HDF5Constants.H5I_INVALID_HID;
        H5O_info_t obj_info = null;
        try {
            try {
                oid      = H5.H5Oopen(H5fid, "L1", HDF5Constants.H5P_DEFAULT);
                obj_info = H5.H5Oget_info(oid);
            }
            catch (Throwable err) {
                err.printStackTrace();
                fail("testH5Oopen_by_idx_n3:H5.H5Oget_info: " + err);
            }
            H5la_l1 = obj_info.token;
            try {
                H5.H5Oclose(oid);
            }
            catch (Exception ex) {
            }
            try {
                oid = H5.H5Oopen_by_idx(H5fid, "/", HDF5Constants.H5_INDEX_NAME, HDF5Constants.H5_ITER_INC, 3,
                                        HDF5Constants.H5P_DEFAULT);
            }
            catch (Throwable err) {
                err.printStackTrace();
                fail("testH5Oopen_by_idx_n3: H5.H5Oopen_by_idx: " + err);
            }
            try {
                obj_info = H5.H5Oget_info(oid);
            }
            catch (Throwable err) {
                err.printStackTrace();
                fail("testH5Oopen_by_idx_n3:H5.H5Oget_info_by_idx: " + err);
            }
            assertFalse("testH5Oopen_by_idx_n3:H5Oget_info_by_idx ", obj_info == null);
            assertTrue("testH5Oopen_by_idx_n3:H5Oget_info_by_idx link type",
                       obj_info.type == HDF5Constants.H5O_TYPE_DATASET);
            assertTrue("testH5Oopen_by_idx_n3:Link Object Token", obj_info.token.equals(H5la_l1));
        }
        finally {
            try {
                H5.H5Oclose(oid);
            }
            catch (Exception ex) {
            }
        }
    }
}
