b.setPriority( Priority.WARN );
b.debug( MSG );
assertEquals( "Priority debug output", "", getResult( output ) );
bc.debug( MSG );
assertEquals( "Priority debug output", "", getResult( output ) );
bcd.debug( MSG );
assertEquals( "Priority debug output", "", getResult( output ) );
bc.setPriority( Priority.DEBUG );
b.debug( MSG );
assertEquals( "Priority debug output", "", getResult( output ) );