msg_param_set_test.java

/* AUTO-GENERATED FILE.  DO NOT MODIFY.
 *
 * This class was automatically generated by the
 * java mavlink generator tool. It should not be modified by hand.
 */
         
// MESSAGE PARAM_SET PACKING
package com.MAVLink.common;
import com.MAVLink.MAVLinkPacket;
import com.MAVLink.Parser;
import com.MAVLink.ardupilotmega.CRC;
import java.nio.ByteBuffer;
import org.junit.Test;

import static org.junit.Assert.assertArrayEquals;

/**
* Set a parameter value TEMPORARILY to RAM. It will be reset to default on system reboot. Send the ACTION MAV_ACTION_STORAGE_WRITE to PERMANENTLY write the RAM contents to EEPROM. IMPORTANT: The receiving component should acknowledge the new parameter value by sending a param_value message to all communication partners. This will also ensure that multiple GCS all have an up-to-date list of all parameters. If the sending GCS did not receive a PARAM_VALUE message within its timeout time, it should re-send the PARAM_SET message.
*/
public class msg_param_set_test{

public static final int MAVLINK_MSG_ID_PARAM_SET = 23;
public static final int MAVLINK_MSG_LENGTH = 23;
private static final long serialVersionUID = MAVLINK_MSG_ID_PARAM_SET;

private Parser parser = new Parser();

public CRC generateCRC(byte[] packet){
    CRC crc = new CRC();
    for (int i = 1; i < packet.length - 2; i++) {
        crc.update_checksum(packet[i] & 0xFF);
    }
    crc.finish_checksum(MAVLINK_MSG_ID_PARAM_SET);
    return crc;
}

public byte[] generateTestPacket(){
    ByteBuffer payload = ByteBuffer.allocate(6 + MAVLINK_MSG_LENGTH + 2);
    payload.put((byte)MAVLinkPacket.MAVLINK_STX); //stx
    payload.put((byte)MAVLINK_MSG_LENGTH); //len
    payload.put((byte)0); //seq
    payload.put((byte)255); //sysid
    payload.put((byte)190); //comp id
    payload.put((byte)MAVLINK_MSG_ID_PARAM_SET); //msg id
    payload.putFloat((float)17.0); //param_value
    payload.put((byte)17); //target_system
    payload.put((byte)84); //target_component
    //param_id
    payload.put((byte)'G');
    payload.put((byte)'H');
    payload.put((byte)'I');
    payload.put((byte)'J');
    payload.put((byte)'K');
    payload.put((byte)'L');
    payload.put((byte)'M');
    payload.put((byte)'N');
    payload.put((byte)'O');
    payload.put((byte)'P');
    payload.put((byte)'Q');
    payload.put((byte)'R');
    payload.put((byte)'S');
    payload.put((byte)'T');
    payload.put((byte)'U');
    payload.put((byte)'G');
    payload.put((byte)199); //param_type
    
    CRC crc = generateCRC(payload.array());
    payload.put((byte)crc.getLSB());
    payload.put((byte)crc.getMSB());
    return payload.array();
}

@Test
public void test(){
    byte[] packet = generateTestPacket();
    for(int i = 0; i < packet.length - 1; i++){
        parser.mavlink_parse_char(packet[i] & 0xFF);
    }
    MAVLinkPacket m = parser.mavlink_parse_char(packet[packet.length - 1] & 0xFF);
    byte[] processedPacket = m.encodePacket();
    assertArrayEquals("msg_param_set", processedPacket, packet);
}
}