package org.apache.commons.jcs.utils.discovery;
   
   /*
    * 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.
   */
  
  import java.util.ArrayList;
  
  import junit.framework.TestCase;
  
  import org.apache.commons.jcs.utils.timing.SleepUtil;
  
  /**
   * Unit tests for discovery
   */
  public class UDPDiscoveryUnitTest
      extends TestCase
  {
      /**
       * <p>
       * @throws Exception
       */
      public void testSimpleUDPDiscovery()
          throws Exception
      {
          UDPDiscoveryAttributes attributes = new UDPDiscoveryAttributes();
          attributes.setUdpDiscoveryAddr( "228.5.6.7" );
          attributes.setUdpDiscoveryPort( 6789 );
          attributes.setServicePort( 1000 );
  
          // create the service
          UDPDiscoveryService service = new UDPDiscoveryService( attributes );
          service.startup();
          service.addParticipatingCacheName( "testCache1" );
  
          MockDiscoveryListener discoveryListener = new MockDiscoveryListener();
          service.addDiscoveryListener( discoveryListener );
  
          // create a receiver with the service
          UDPDiscoveryReceiver receiver = new UDPDiscoveryReceiver( service, attributes.getUdpDiscoveryAddr(), attributes
              .getUdpDiscoveryPort() );
          Thread t = new Thread( receiver );
          t.start();
  
          // create a sender
          UDPDiscoverySender sender = new UDPDiscoverySender( attributes.getUdpDiscoveryAddr(), attributes
              .getUdpDiscoveryPort() );
  
          // create more names than we have no wait facades for
          // the only one that gets added should be testCache1
          ArrayList<String> cacheNames = new ArrayList<String>();
          int numJunk = 10;
          for ( int i = 0; i < numJunk; i++ )
          {
              cacheNames.add( "junkCacheName" + i );
          }
          cacheNames.add( "testCache1" );
  
          // send max messages
          int max = 10;
          int cnt = 0;
          for ( ; cnt < max; cnt++ )
          {
              sender.passiveBroadcast( "localhost", 1111, cacheNames, 1 );
              SleepUtil.sleepAtLeast( 20 );
          }
  
          SleepUtil.sleepAtLeast( 200 );
  
          // check to see that we got 10 messages
          //System.out.println( "Receiver count = " + receiver.getCnt() );
  
          // request braodcasts change things.
          assertTrue( "Receiver count [" + receiver.getCnt() + "] should be the at least the number sent [" + cnt + "].",
                      cnt <= receiver.getCnt() );
      }
  }