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/*
* 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;
import java.io.IOException;
import java.util.Arrays;
import java.util.Iterator;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMResult;
import javax.xml.transform.sax.SAXSource;
import org.apache.commons.jxpath.JXPathContext;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
import junit.framework.TestCase;
/**
* Test class for BaseConfigurationXMLReader.
*
* @version $Id$
*/
public class TestBaseConfigurationXMLReader extends TestCase
{
private static final String[] CONTINENTS =
{
"Africa", "America", "Asia", "Australia", "Europe"
};
private BaseConfiguration config;
private BaseConfigurationXMLReader configReader;
protected void setUp() throws Exception
{
config = new BaseConfiguration();
config.addProperty("world.continents.continent", Arrays.asList(CONTINENTS));
config.addProperty("world.greeting", "Hello");
config.addProperty("world.greeting", "Salute");
config.addProperty("world.wish", "Peace");
config.addProperty("application.mail.smtp", "smtp.mymail.org");
config.addProperty("application.mail.pop", "pop3.mymail.org");
config.addProperty("application.mail.account.type", "pop3");
config.addProperty("application.mail.account.user", "postmaster");
config.addProperty("application.mail.account.pwd", "?.-gulp*#");
config.addProperty("application.mail.timeout", new Integer(42));
config.addProperty("test", Boolean.TRUE);
configReader = new BaseConfigurationXMLReader(config);
}
public void testParse() throws Exception
{
checkDocument(configReader, "config");
}
public void testParseSAXException() throws IOException
{
configReader.setContentHandler(new TestContentHandler());
try
{
configReader.parse("systemID");
fail("Expected exception was not thrown!");
}
catch(SAXException ex)
{
}
}
public void testParseIOException() throws SAXException
{
BaseConfigurationXMLReader reader = new BaseConfigurationXMLReader();
try
{
reader.parse("document");
fail("Expected exception was not thrown!");
}
catch(IOException ex)
{
}
}
public void testSetRootName() throws Exception
{
BaseConfigurationXMLReader reader = new BaseConfigurationXMLReader(config);
reader.setRootName("apache");
checkDocument(reader, "apache");
}
private void checkDocument(BaseConfigurationXMLReader creader,
String rootName) throws Exception
{
SAXSource source = new SAXSource(creader, new InputSource());
DOMResult result = new DOMResult();
Transformer trans = TransformerFactory.newInstance().newTransformer();
try
{
//When executed on a JDK 1.3 this line throws a NoSuchMethodError
//somewhere deep in Xalan. We simply ignore this.
trans.transform(source, result);
}
catch(NoSuchMethodError ex)
{
return;
}
Node root = ((Document) result.getNode()).getDocumentElement();
JXPathContext ctx = JXPathContext.newContext(root);
assertEquals("Wrong root name", rootName, root.getNodeName());
assertEquals("Wrong number of children", 3, ctx.selectNodes("/*").size());
check(ctx, "world/continents/continent", CONTINENTS);
check(ctx, "world/greeting", new String[] { "Hello", "Salute" });
check(ctx, "world/wish", "Peace");
check(ctx, "application/mail/smtp", "smtp.mymail.org");
check(ctx, "application/mail/timeout", "42");
check(ctx, "application/mail/account/type", "pop3");
check(ctx, "application/mail/account/user", "postmaster");
check(ctx, "test", "true");
}
/**
* Helper method for checking values in the created document.
*
* @param ctx the JXPath context
* @param path the path to be checked
* @param values the expected element values
*/
private void check(JXPathContext ctx, String path, String[] values)
{
Iterator it = ctx.iterate(path);
for (int i = 0; i < values.length; i++)
{
assertTrue("Too few values", it.hasNext());
assertEquals("Wrong property value", values[i], it.next());
} /* for */
assertFalse("Too many values", it.hasNext());
}
private void check(JXPathContext ctx, String path, String value)
{
check(ctx, path, new String[]
{ value });
}
// A ContentHandler that raises an exception
private static class TestContentHandler extends DefaultHandler
{
public void characters(char[] ch, int start, int length)
throws SAXException
{
throw new SAXException("Test exception during parsing");
}
}
}