ModbusSlaveEndpointTestCase.java

/**
 * Copyright (c) 2010-2017 by the respective copyright holders.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 */
package org.openhab.binding.modbus.internal;

import org.junit.Assert;
import org.junit.Test;
import org.openhab.binding.modbus.internal.pooling.ModbusSerialSlaveEndpoint;
import org.openhab.binding.modbus.internal.pooling.ModbusTCPSlaveEndpoint;
import org.openhab.binding.modbus.internal.pooling.ModbusUDPSlaveEndpoint;

import gnu.io.SerialPort;
import net.wimpi.modbus.Modbus;
import net.wimpi.modbus.util.SerialParameters;

public class ModbusSlaveEndpointTestCase {

    @Test
    public void testEqualsSameTcp() {
        ModbusTCPSlaveEndpoint e1 = new ModbusTCPSlaveEndpoint("127.0.0.1", 500);
        ModbusTCPSlaveEndpoint e2 = new ModbusTCPSlaveEndpoint("127.0.0.1", 500);
        Assert.assertEquals(e1, e2);
    }

    @Test
    public void testEqualsSameSerial() {
        ModbusSerialSlaveEndpoint e1 = new ModbusSerialSlaveEndpoint(new SerialParameters());
        ModbusSerialSlaveEndpoint e2 = new ModbusSerialSlaveEndpoint(new SerialParameters());
        Assert.assertEquals(e1, e2);
    }

    @Test
    public void testEqualsSameSerial2() {
        ModbusSerialSlaveEndpoint e1 = new ModbusSerialSlaveEndpoint(new SerialParameters("port1", 9600,
                SerialPort.FLOWCONTROL_NONE, SerialPort.FLOWCONTROL_NONE, SerialPort.DATABITS_8, SerialPort.STOPBITS_1,
                SerialPort.PARITY_NONE, Modbus.DEFAULT_SERIAL_ENCODING, true, 500));
        ModbusSerialSlaveEndpoint e2 = new ModbusSerialSlaveEndpoint(new SerialParameters("port1", 9600,
                SerialPort.FLOWCONTROL_NONE, SerialPort.FLOWCONTROL_NONE, SerialPort.DATABITS_8, SerialPort.STOPBITS_1,
                SerialPort.PARITY_NONE, Modbus.DEFAULT_SERIAL_ENCODING, true, 500));
        Assert.assertEquals(e1, e2);
    }

    /**
     * even though different echo parameter & baud rate, the endpoints are considered the same due to same port
     */
    @Test
    public void testEqualsSameSerial3() {
        ModbusSerialSlaveEndpoint e1 = new ModbusSerialSlaveEndpoint(new SerialParameters("port1", 9600,
                SerialPort.FLOWCONTROL_NONE, SerialPort.FLOWCONTROL_NONE, SerialPort.DATABITS_8, SerialPort.STOPBITS_1,
                SerialPort.PARITY_NONE, Modbus.DEFAULT_SERIAL_ENCODING, true, 500));
        ModbusSerialSlaveEndpoint e2 = new ModbusSerialSlaveEndpoint(new SerialParameters("port1", 9600,
                SerialPort.FLOWCONTROL_NONE, SerialPort.FLOWCONTROL_NONE, SerialPort.DATABITS_8, SerialPort.STOPBITS_1,
                SerialPort.PARITY_NONE, Modbus.DEFAULT_SERIAL_ENCODING, false, 500));
        Assert.assertEquals(e1, e2);
        Assert.assertEquals(e1.hashCode(), e2.hashCode());
    }

    @Test
    public void testEqualsDifferentSerial() {
        ModbusSerialSlaveEndpoint e1 = new ModbusSerialSlaveEndpoint(new SerialParameters("port1", 9600,
                SerialPort.FLOWCONTROL_NONE, SerialPort.FLOWCONTROL_NONE, SerialPort.DATABITS_8, SerialPort.STOPBITS_1,
                SerialPort.PARITY_NONE, Modbus.DEFAULT_SERIAL_ENCODING, true, 500));
        ModbusSerialSlaveEndpoint e2 = new ModbusSerialSlaveEndpoint(new SerialParameters("port2", 9600,
                SerialPort.FLOWCONTROL_NONE, SerialPort.FLOWCONTROL_NONE, SerialPort.DATABITS_8, SerialPort.STOPBITS_1,
                SerialPort.PARITY_NONE, Modbus.DEFAULT_SERIAL_ENCODING, true, 500));
        Assert.assertNotEquals(e1, e2);
        Assert.assertNotEquals(e1.hashCode(), e2.hashCode());
    }

    @Test
    public void testEqualsDifferentTCPPort() {
        ModbusTCPSlaveEndpoint e1 = new ModbusTCPSlaveEndpoint("127.0.0.1", 500);
        ModbusTCPSlaveEndpoint e2 = new ModbusTCPSlaveEndpoint("127.0.0.1", 501);
        Assert.assertNotEquals(e1, e2);
        Assert.assertNotEquals(e1.hashCode(), e2.hashCode());
    }

    @Test
    public void testEqualsDifferentTCPHost() {
        ModbusTCPSlaveEndpoint e1 = new ModbusTCPSlaveEndpoint("127.0.0.1", 500);
        ModbusTCPSlaveEndpoint e2 = new ModbusTCPSlaveEndpoint("127.0.0.2", 501);
        Assert.assertNotEquals(e1, e2);
        Assert.assertNotEquals(e1.hashCode(), e2.hashCode());
    }

    @Test
    public void testEqualsDifferentProtocol() {
        ModbusTCPSlaveEndpoint e1 = new ModbusTCPSlaveEndpoint("127.0.0.1", 500);
        ModbusUDPSlaveEndpoint e2 = new ModbusUDPSlaveEndpoint("127.0.0.1", 500);
        Assert.assertNotEquals(e1, e2);
        Assert.assertNotEquals(e1.hashCode(), e2.hashCode());
    }

    @Test
    public void testEqualsDifferentProtocol2() {
        ModbusTCPSlaveEndpoint e1 = new ModbusTCPSlaveEndpoint("127.0.0.1", 500);
        ModbusSerialSlaveEndpoint e2 = new ModbusSerialSlaveEndpoint(new SerialParameters());
        Assert.assertNotEquals(e1, e2);
        Assert.assertNotEquals(e1.hashCode(), e2.hashCode());
    }
}