/*
* @(#) $Id: AbstractBindTest.java 264677 2005-08-30 02:44:35Z trustin $
*
* Copyright 2004 The Apache Software Foundation
*
* Licensed 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.mina.io;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.util.Date;
import junit.framework.Assert;
import junit.framework.TestCase;
import org.apache.mina.examples.echoserver.EchoProtocolHandler;
/**
* Tests {@link IoAcceptor} resource leakage by repeating bind and unbind.
*
* @author Trustin Lee (trustin@apache.org)
* @version $Rev: 264677 $, $Date: 2005-08-30 11:44:35 +0900 $
*/
public class AbstractBindTest extends TestCase
{
protected final IoAcceptor acceptor;
protected int port;
public AbstractBindTest( IoAcceptor acceptor )
{
this.acceptor = acceptor;
}
public void setUp() throws IOException
{
// Find an availble test port and bind to it.
boolean socketBound = false;
// Let's start from port #1 to detect possible resource leak
// because test will fail in port 1-1023 if user run this test
// as a normal user.
for( port = 1; port <= 65535; port ++ )
{
socketBound = false;
try
{
acceptor.bind( new InetSocketAddress( port ),
new EchoProtocolHandler() );
socketBound = true;
break;
}
catch( IOException e )
{
}
}
// If there is no port available, test fails.
if( !socketBound )
{
throw new IOException( "Cannot bind any test port." );
}
//System.out.println( "Using port " + port + " for testing." );
}
public void tearDown()
{
try
{
acceptor.unbind( new InetSocketAddress( port ) );
}
catch( Exception e )
{
// ignore
}
}
public void testDuplicateBind()
{
try
{
acceptor.bind( new InetSocketAddress( port ), new EchoProtocolHandler() );
Assert.fail( "IOException is not thrown" );
}
catch( IOException e )
{
}
}
public void testDuplicateUnbind()
{
// this should succeed
acceptor.unbind( new InetSocketAddress( port ) );
try
{
// this should fail
acceptor.unbind( new InetSocketAddress( port ) );
Assert.fail( "Exception is not thrown" );
}
catch( Exception e )
{
}
}
public void testManyTimes() throws IOException
{
InetSocketAddress addr = new InetSocketAddress( port );
EchoProtocolHandler handler = new EchoProtocolHandler();
for( int i = 0; i < 1024; i++ )
{
acceptor.unbind( addr );
acceptor.bind( addr, handler );
}
}
public void _testRegressively() throws IOException
{
tearDown();
InetSocketAddress addr = new InetSocketAddress( port );
EchoProtocolHandler handler = new EchoProtocolHandler();
for( int i = 0; i < 1048576; i++ )
{
acceptor.bind( addr, handler );
testDuplicateBind();
testDuplicateUnbind();
if( i % 100 == 0 )
{
System.out.println( i + " (" + new Date() + ")" );
}
}
setUp();
}
}