/*
* 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 static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
import java.util.List;
import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.configuration.HierarchicalConfiguration;
import org.apache.commons.configuration.tree.xpath.XPathExpressionEngine;
import org.junit.Test;
/**
* Test class for MergeCombiner.
*
* @version $Id: TestMergeCombiner.java 1225911 2011-12-30 20:19:10Z oheger $
*/
public class TestMergeCombiner extends AbstractCombinerTest
{
/**
* Creates the combiner.
*
* @return the combiner
*/
@Override
protected NodeCombiner createCombiner()
{
return new MergeCombiner();
}
/**
* Tests combination of simple elements.
*/
@Test
public void testSimpleValues() throws ConfigurationException
{
HierarchicalConfiguration config = createCombinedConfiguration();
assertEquals("Wrong number of bgcolors", 0, config
.getMaxIndex("gui.bgcolor"));
assertEquals("Wrong bgcolor", "green", config.getString("gui.bgcolor"));
assertEquals("Wrong selcolor", "yellow", config
.getString("gui.selcolor"));
assertEquals("Wrong fgcolor", "blue", config.getString("gui.fgcolor"));
assertEquals("Wrong level", 1, config.getInt("gui.level"));
}
/**
* Tests combination of attributes.
*/
@Test
public void testAttributes() throws ConfigurationException
{
HierarchicalConfiguration config = createCombinedConfiguration();
assertEquals("Wrong value of min attribute", 1, config
.getInt("gui.level[@min]"));
assertEquals("Wrong value of default attribute", 2, config
.getInt("gui.level[@default]"));
assertEquals("Wrong number of id attributes", 0, config
.getMaxIndex("database.tables.table(0)[@id]"));
assertEquals("Wrong value of table id", 1, config
.getInt("database.tables.table(0)[@id]"));
}
/**
* Tests whether property values are correctly overridden.
*/
@Test
public void testOverrideValues() throws ConfigurationException
{
HierarchicalConfiguration config = createCombinedConfiguration();
assertEquals("Wrong user", "Admin", config
.getString("base.services.security.login.user"));
assertEquals("Wrong user type", "default", config
.getString("base.services.security.login.user[@type]"));
assertNull("Wrong password", config.getString("base.services.security.login.passwd"));
assertEquals("Wrong password type", "secret", config
.getString("base.services.security.login.passwd[@type]"));
}
/**
* Tests if a list from the first node structure overrides a list in the
* second structure.
*/
@Test
public void testListFromFirstStructure() throws ConfigurationException
{
HierarchicalConfiguration config = createCombinedConfiguration();
assertEquals("Wrong number of services", 0, config
.getMaxIndex("net.service.url"));
assertEquals("Wrong service", "http://service1.org", config
.getString("net.service.url"));
assertFalse("Type attribute available", config
.containsKey("net.service.url[@type]"));
}
/**
* Tests if a list from the second structure is added if it is not defined
* in the first structure.
*/
@Test
public void testListFromSecondStructure() throws ConfigurationException
{
HierarchicalConfiguration config = createCombinedConfiguration();
assertEquals("Wrong number of servers", 3, config
.getMaxIndex("net.server.url"));
assertEquals("Wrong server", "http://testsvr.com", config
.getString("net.server.url(2)"));
}
/**
* Tests the combination of the table structure. With the merge combiner
* both table 1 and table 2 should be present.
*/
@Test
public void testCombinedTable() throws ConfigurationException
{
checkTable(createCombinedConfiguration());
}
@Test
public void testMerge() throws ConfigurationException
{
//combiner.setDebugStream(System.out);
HierarchicalConfiguration config = createCombinedConfiguration();
config.setExpressionEngine(new XPathExpressionEngine());
assertEquals("Wrong number of Channels", 3, config.getMaxIndex("Channels/Channel"));
assertEquals("Bad Channel 1 Name", "My Channel",
config.getString("Channels/Channel[@id='1']/Name"));
assertEquals("Bad Channel Type", "half",
config.getString("Channels/Channel[@id='1']/@type"));
assertEquals("Bad Channel 2 Name", "Channel 2",
config.getString("Channels/Channel[@id='2']/Name"));
assertEquals("Bad Channel Type", "full",
config.getString("Channels/Channel[@id='2']/@type"));
assertEquals("Bad Channel Data", "test 1 data",
config.getString("Channels/Channel[@id='1']/ChannelData"));
assertEquals("Bad Channel Data", "test 2 data",
config.getString("Channels/Channel[@id='2']/ChannelData"));
assertEquals("Bad Channel Data", "more test 2 data",
config.getString("Channels/Channel[@id='2']/MoreChannelData"));
}
/**
* Helper method for checking the combined table structure.
*
* @param config the config
* @return the node for the table element
*/
private ConfigurationNode checkTable(HierarchicalConfiguration config)
{
assertEquals("Wrong number of tables", 1, config
.getMaxIndex("database.tables.table"));
HierarchicalConfiguration c = config
.configurationAt("database.tables.table(0)");
assertEquals("Wrong table name", "documents", c.getString("name"));
assertEquals("Wrong number of fields", 2, c
.getMaxIndex("fields.field.name"));
assertEquals("Wrong field", "docname", c
.getString("fields.field(1).name"));
List<ConfigurationNode> nds = config.getExpressionEngine().query(config.getRoot(),
"database.tables.table");
assertFalse("No node found", nds.isEmpty());
return nds.get(0);
}
}