/*

 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

import java.io.IOException;

import java.util.Map;

import java.util.UUID;

import org.testng.annotations.Test;

import sun.management.jdp.JdpJmxPacket;

import static org.testng.Assert.assertEquals;

/**

 * These tests are unit tests used for test development.

 * These are not meant to be by automatically run by JTREG.

 * They exists to support test development and should be run by the test developer.

 * <p/>

 * <p/>

 * The JDP packet format:

 * <p/>

 * packet = header + payload

 * <p/>

 * header  = magic + version

 * magic       = 4 bytes: 0xCOFFEE42

 * version     = 2 bytes: 01 (As of 2013-05-01)

 * <p/>

 * payload = list key/value pairs

 * keySize     = 2 bytes

 * key         = (keySize) bytes

 * valueSize   = 2 bytes

 * value       = (valueSize) bytes

 * <p/>

 * <p/>

 * Two entries are mandatory in the payload:

 * UUID            (JdpJmxPacket.UUID_KEY)

 * JMX service URL (JdpJmxPacket.JMX_SERVICE_URL_KEY)

 * <p/>

 * These two entries are optional:

 * Main Class      (JdpJmxPacket.MAIN_CLASS_KEY)

 * Instance name   (JdpJmxPacket.INSTANCE_NAME_KEY)

 *

 * @author Alex Schenkman

 *         <p/>

 *         Using TestNG framework.

 */

public class PacketTest {

    final int MAGIC = 0xC0FFEE42;

    final UUID id = UUID.randomUUID();

    final String mainClass = "org.happy.Feet";

    final String jmxServiceUrl = "fake://jmxUrl";

    final String instanceName = "Joe";

    private JdpJmxPacket createDefaultPacket() {

        JdpJmxPacket packet = new JdpJmxPacket(id, jmxServiceUrl);

        return packet;

    }

    private JdpJmxPacket createFullPacket() {

        JdpJmxPacket packet = new JdpJmxPacket(id, jmxServiceUrl);

        packet.setMainClass(mainClass);

        packet.setInstanceName("Joe");

        return packet;

    }

    @Test

    public void testMagic() throws IOException {

        byte[] rawData = createFullPacket().getPacketData();

        int magic = JdpTestUtil.decode4ByteInt(rawData, 0);

        assertEquals(MAGIC, magic, "MAGIC does not match!");

    }

    @Test

    public void testVersion() throws IOException {

        byte[] rawData = createFullPacket().getPacketData();

        assertEquals(1, JdpTestUtil.decode2ByteInt(rawData, 4));

    }

    @Test

    public void testAllEntries() throws IOException {

        byte[] rawData = createFullPacket().getPacketData();

        Map<String, String> payload = JdpTestUtil.readPayload(rawData);

        assertEquals(4, payload.size());

        assertEquals(mainClass, payload.get(JdpJmxPacket.MAIN_CLASS_KEY));

        assertEquals(id.toString(), payload.get(JdpJmxPacket.UUID_KEY));

        assertEquals(jmxServiceUrl, payload.get(JdpJmxPacket.JMX_SERVICE_URL_KEY));

        assertEquals(instanceName, payload.get(JdpJmxPacket.INSTANCE_NAME_KEY));

    }

    public void testDefaultEntries() throws IOException {

        byte[] rawData = createDefaultPacket().getPacketData();

        Map<String, String> payload = JdpTestUtil.readPayload(rawData);

        assertEquals(2, payload.size());

        assertEquals(id.toString(), payload.get(JdpJmxPacket.UUID_KEY));

        assertEquals(jmxServiceUrl, payload.get(JdpJmxPacket.JMX_SERVICE_URL_KEY));

    }

}