/*
* 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.configuration.tree;
import java.io.File;
import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.configuration.HierarchicalConfiguration;
import org.apache.commons.configuration.XMLConfiguration;
import junit.framework.TestCase;
/**
* A base class for testing combiner implementations. This base class provides
* some functionality for loading the test configurations, which are to be
* combined. Concrete sub classes only need to create the correct combiner
* object.
*
* @version $Id: AbstractCombinerTest.java 439648 2006-09-02 20:42:10Z oheger $
*/
public abstract class AbstractCombinerTest extends TestCase
{
/** Constant for the first test configuration. */
static File CONF1 = new File("conf/testcombine1.xml");
/** Constant for the second test configuration. */
static File CONF2 = new File("conf/testcombine2.xml");
/** The combiner to be tested. */
protected NodeCombiner combiner;
protected void setUp() throws Exception
{
super.setUp();
combiner = createCombiner();
}
/**
* Creates the combiner to be tested. This method is called by
* <code>setUp()</code>. It must be implemented in concrete sub classes.
*
* @return the combiner to be tested
*/
protected abstract NodeCombiner createCombiner();
/**
* Constructs a union configuration based on the source configurations.
*
* @return the union configuration
* @throws ConfigurationException if an error occurs
*/
protected HierarchicalConfiguration createCombinedConfiguration()
throws ConfigurationException
{
XMLConfiguration conf1 = new XMLConfiguration(CONF1);
XMLConfiguration conf2 = new XMLConfiguration(CONF2);
ConfigurationNode cn = combiner.combine(conf1.getRootNode(), conf2
.getRootNode());
HierarchicalConfiguration result = new HierarchicalConfiguration();
result.setRootNode(cn);
return result;
}
/**
* Tests a newly created combiner.
*/
public void testInit()
{
assertTrue("Combiner has list nodes", combiner.getListNodes().isEmpty());
assertFalse("Node is list node", combiner
.isListNode(new DefaultConfigurationNode("test")));
}
}