Commons Net example source code file (TelnetClientFunctionalTest.java)

This example Commons Net source code file (TelnetClientFunctionalTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Commons Net tags/keywords

exception, exception, io, lax\n, los, override, return, string, string, telnetclient, telnetclient, telnetclientfunctionaltest, testcase, x, x\n

The Commons Net TelnetClientFunctionalTest.java source code

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.commons.net.telnet;

import junit.framework.TestCase;
import java.io.InputStream;
import java.io.OutputStream;

/***
 * JUnit functional test for TelnetClient.
 * Connects to the weather forecast service
 * rainmaker.wunderground.com and asks for Los Angeles forecast.
 * <p>
 * @author Bruno D'Avanzo
 ***/
public class TelnetClientFunctionalTest extends TestCase
{
    protected TelnetClient tc1;

    /***
     * test setUp
     ***/
    @Override
    protected void setUp()
    {
        tc1 = new TelnetClient();
    }

    /***
     * Do the functional test:
     * - connect to the weather service
     * - press return on the first menu
     * - send LAX on the second menu
     * - send X to exit
     ***/
    public void testFunctionalTest() throws Exception
    {
        boolean testresult = false;
        tc1.connect("rainmaker.wunderground.com", 3000);

        InputStream is = tc1.getInputStream();
        OutputStream os = tc1.getOutputStream();

        boolean cont = waitForString(is, "Return to continue:", 30000);
        if (cont)
        {
            os.write("\n".getBytes());
            os.flush();
            cont = waitForString(is, "city code--", 30000);
        }
        if (cont)
        {
            os.write("LAX\n".getBytes());
            os.flush();
            cont = waitForString(is, "Los Angeles", 30000);
        }
        if (cont)
        {
            cont = waitForString(is, "X to exit:", 30000);
        }
        if (cont)
        {
            os.write("X\n".getBytes());
            os.flush();
            tc1.disconnect();
            testresult = true;
        }

        assertTrue(testresult);
    }


    /***
     * Helper method. waits for a string with timeout
     ***/
    public boolean waitForString(InputStream is, String end, long timeout) throws Exception
    {
        byte buffer[] = new byte[32];
        long starttime = System.currentTimeMillis();

        String readbytes = "";
        while((readbytes.indexOf(end) < 0) &&
              ((System.currentTimeMillis() - starttime) < timeout))
        {
            if(is.available() > 0)
            {
                int ret_read = is.read(buffer);
                readbytes = readbytes + new String(buffer, 0, ret_read);
            }
            else
            {
                Thread.sleep(500);
            }
        }

        if(readbytes.indexOf(end) >= 0)
        {
            return (true);
        }
        else
        {
            return (false);
        }
    }
}