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package org.apache.log.test;
import junit.framework.TestCase;
import org.apache.log.Hierarchy;
import org.apache.log.Logger;
/**
* Test suite for logger listener features of Logger.
*
* @author <a href="mailto:peter@apache.org">Peter Donald</a>
*/
public final class LoggerListenerTestCase
extends TestCase
{
public LoggerListenerTestCase( final String name )
{
super( name );
}
public void testUnicastLoggerListener()
{
final Hierarchy hierarchy = new Hierarchy();
final RecordingLoggerListener listener = new RecordingLoggerListener();
try
{
hierarchy.addLoggerListener( listener );
hierarchy.addLoggerListener( listener );
fail( "You should only be able to add one listener." );
}
catch (UnsupportedOperationException uoe)
{
// It passed, yay!
}
}
public void testRemoveLoggerListener()
{
final Hierarchy hierarchy = new Hierarchy();
final RecordingLoggerListener listener = new RecordingLoggerListener();
hierarchy.addLoggerListener( listener );
hierarchy.removeLoggerListener( listener );
hierarchy.addLoggerListener( listener );
// If no exceptions have been thrown, we are in business!
}
public void testPriorityInheritance()
throws Exception
{
final RecordingLoggerListener listener = new RecordingLoggerListener();
final Hierarchy hierarchy = new Hierarchy();
hierarchy.addLoggerListener( listener );
final Logger root = hierarchy.getRootLogger();
final Logger l1 = root.getChildLogger( "logger1" );
final Logger l2 = root.getChildLogger( "logger2" );
final Logger l3 = root.getChildLogger( "logger1.logger3" );
final Logger l4 = root.getChildLogger( "logger5.logger4" );
final Logger l5 = root.getChildLogger( "logger5" );
final Logger[] loggers = listener.getLoggers();
assertEquals( "Logger Count", 5, loggers.length );
assertEquals( "Logger[0]", l1, loggers[ 0 ] );
assertEquals( "Logger[1]", l2, loggers[ 1 ] );
assertEquals( "Logger[2]", l3, loggers[ 2 ] );
assertEquals( "Logger[3]", l5, loggers[ 3 ] );
assertEquals( "Logger[4]", l4, loggers[ 4 ] );
}
}