package test.hdf5lib;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import ncsa.hdf.hdf5lib.H5;
import ncsa.hdf.hdf5lib.HDF5Constants;
import ncsa.hdf.hdf5lib.exceptions.HDF5LibraryException;

import org.junit.After;
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;

public class TestH5E {
    int hdf_java_classid = -1;
    int current_stackid = -1;

    @Before
    public void H5Eget_stack_class() {
        assertTrue("H5 open ids is 0",H5.getOpenIDCount()==0);

        hdf_java_classid = -1;
        try {
            hdf_java_classid = H5.H5Eregister_class("HDF-Java-Error",
                    "hdf-java", "2.5");
            current_stackid = H5.H5Eget_current_stack();
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Eget_stack_class: " + err);
        }
    }

    @After
    public void H5Erestore_stack_class() {
        try {
            H5.H5Eunregister_class(hdf_java_classid);
            hdf_java_classid = -1;
            H5.H5Eclose_stack(current_stackid);
            current_stackid = -1;
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Erestore_stack_class: " + err);
        }
    }

    @Test
    public void testH5Eget_class_name() {
        try {
            String class_name = H5.H5Eget_class_name(hdf_java_classid);
            assertNotNull("H5.H5Eget_class_name: " + class_name, class_name);
            assertEquals("H5.H5Eget_class_name: ", "HDF-Java-Error", class_name);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Eget_class_name: " + err);
        }
    }

    @Test
    public void testH5Eprint2() {
        try {
            assertFalse(current_stackid < 0);
            H5.H5Eprint2(current_stackid, null);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Eprint2: " + err);
        }
    }

    @Ignore("Tested with create_msg_major[minor]")
    public void testH5Eclose_msg() {
        fail("Not yet implemented");
    }

    @Test(expected = NullPointerException.class)
    public void testH5Ecreate_msg_name_null() throws Throwable {
        H5.H5Ecreate_msg(hdf_java_classid, HDF5Constants.H5E_MAJOR, null);
    }

    @Test
    public void testH5Ecreate_msg_major() {
        try {
            int err_id = H5.H5Ecreate_msg(hdf_java_classid,
                    HDF5Constants.H5E_MAJOR, "Error in Test");
            assertFalse("H5.H5Ecreate_msg_major: " + err_id, err_id < 0);
            H5.H5Eclose_msg(err_id);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Ecreate_msg_major: " + err);
        }
    }

    @Test
    public void testH5Ecreate_msg_minor() {
        try {
            int err_id = H5.H5Ecreate_msg(hdf_java_classid,
                    HDF5Constants.H5E_MINOR, "Error in Test Function");
            assertFalse("H5.H5Ecreate_msg_minor: " + err_id, err_id < 0);
            H5.H5Eclose_msg(err_id);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Ecreate_msg_minor: " + err);
        }
    }

    @Test
    public void testH5Eget_msg() {
        int[] error_msg_type = { HDF5Constants.H5E_MINOR };
        int err_id = -1;
        String msg = null;
        try {
            err_id = H5.H5Ecreate_msg(hdf_java_classid,
                    HDF5Constants.H5E_MAJOR, "Error in Test");
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Eget_msg: " + err);
        }
        assertFalse("H5.H5Eget_msg: H5Ecreate_msg - " + err_id, err_id < 0);
        try {
            msg = H5.H5Eget_msg(err_id, error_msg_type);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Eget_msg: " + err);
        }
        assertNotNull("H5.H5Eget_msg: " + msg, msg);
        assertEquals("H5.H5Eget_msg: ", "Error in Test", msg);
        assertEquals("H5.H5Eget_msg: ", HDF5Constants.H5E_MAJOR,
                    error_msg_type[0]);
        try {
            H5.H5Eclose_msg(err_id);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Eget_msg: " + err);
        }
    }

    @Test
    public void testH5Eget_msg_major() {

        try {
            H5.H5Fopen("test", 0, 1);
        }
        catch (HDF5LibraryException hdferr) {
            int[] error_msg_type = { HDF5Constants.H5E_MAJOR };
            String msg = null;
            try {
                msg = H5.H5Eget_msg(hdferr.getMajorErrorNumber(),
                        error_msg_type);
            }
            catch (Throwable err) {
                err.printStackTrace();
                fail("H5.H5Eget_msg: " + err);
            }
            assertNotNull("H5.H5Eget_msg: " + msg, msg);
            assertEquals("H5.H5Eget_msg: ", "Invalid arguments to routine",
                        msg);
            assertEquals("H5.H5Eget_msg: ", HDF5Constants.H5E_MAJOR,
                        error_msg_type[0]);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Eget_msg: " + err);
        }
    }

    @Test
    public void testH5Eget_msg_minor() {
        try {
            H5.H5Fopen("test", 0, 1);
        }
        catch (HDF5LibraryException hdferr) {
            int[] error_msg_type = { HDF5Constants.H5E_MINOR };
            String msg = null;
            try {
                msg = H5.H5Eget_msg(hdferr.getMinorErrorNumber(),
                        error_msg_type);
            }
            catch (Throwable err) {
                err.printStackTrace();
                fail("H5.H5Eget_msg: " + err);
            }
            assertNotNull("H5.H5Eget_msg: " + msg, msg);
            assertEquals("H5.H5Eget_msg: ", "Inappropriate type", msg);
            assertEquals("H5.H5Eget_msg: ", HDF5Constants.H5E_MINOR,
                        error_msg_type[0]);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Eget_msg: " + err);
        }
    }

    @Test
    public void testH5Ecreate_stack() {
        int stk_id = -1;
        try {
            stk_id = H5.H5Ecreate_stack();
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Ecreate_stack: " + err);
        }
        assertFalse("H5.H5Ecreate_stack: " + stk_id, stk_id < 0);
        try {
            H5.H5Eclose_stack(stk_id);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Ecreate_stack: " + err);
        }
    }

    @Test
    public void testH5Epop() {
        try {
            H5.H5Eset_current_stack(current_stackid);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Epop: " + err);
        }

        try {
            H5.H5Fopen("test", 0, 1);
        }
        catch (Throwable err) {
        }

        // save current stack contents
        try {
            current_stackid = H5.H5Eget_current_stack();
        }
        catch (HDF5LibraryException err) {
            err.printStackTrace();
            fail("H5.H5Epop: " + err);
        }

        long num_msg = -1;
        try {
            num_msg = H5.H5Eget_num(HDF5Constants.H5E_DEFAULT);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Epop: " + err);
        }

        assertTrue("H5.H5Epop #:" + num_msg, num_msg == 0);

        try {
            num_msg = H5.H5Eget_num(current_stackid);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Epop: " + err);
        }

        assertTrue("H5.H5Epop #:" + num_msg, num_msg == 2);

        try {
            H5.H5Epop(current_stackid, 1);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Epop: " + err);
        }

        try {
            num_msg = H5.H5Eget_num(current_stackid);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Epop: " + err);
        }

        assertTrue("H5.H5Epop", num_msg == 1);
    }

    @Test
    public void testH5EprintInt() {
        assertFalse(current_stackid < 0);
        try {
            H5.H5Eprint2(current_stackid, null);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5EprintInt: " + err);
        }
    }

    @Test
    public void testH5EclearInt() {
        try {
            H5.H5Eclear(current_stackid);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5EclearInt: " + err);
        }
    }

    @Test
    public void testH5Eclear2() {
        try {
            H5.H5Eclear2(current_stackid);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Eclear2: " + err);
        }
    }

    @Test
    public void testH5Eauto_is_v2() {
        boolean is_v2 = false;
        try {
            is_v2 = H5.H5Eauto_is_v2(current_stackid);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Eauto_is_v2: " + err);
        }
        assertTrue("H5.H5Eauto_is_v2: ", is_v2);
    }

    @Test
    public void testH5Eget_num() {
        long num_msg = -1;
        try {
            num_msg = H5.H5Eget_num(current_stackid);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Eget_num: " + err);
        }
        assertTrue("H5.H5Eget_num", num_msg == 0);
    }

    @Test
    public void testH5Eget_num_with_msg() {
        try {
            H5.H5Eset_current_stack(current_stackid);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Epop: " + err);
        }
        try {
            H5.H5Fopen("test", 0, 1);
        }
        catch (Throwable err) {
        }

        // save current stack contents
        try {
            current_stackid = H5.H5Eget_current_stack();
        }
        catch (HDF5LibraryException err) {
            err.printStackTrace();
            fail("H5.H5Epop: " + err);
        }

        long num_msg = -1;
        try {
            num_msg = H5.H5Eget_num(current_stackid);
        }
        catch (Throwable err) {
            err.printStackTrace();
            fail("H5.H5Epop: " + err);
        }
        assertTrue("H5.H5Eget_num_with_msg #:" + num_msg, num_msg > 0);
    }

    @Ignore("API1.6")
    public void testH5Eprint() {
        fail("Not yet implemented");
    }

    @Ignore("API1.6")
    public void testH5Eclear() {
        fail("Not yet implemented");
    }

}