selectsinglenodetest.java

解决如何把XML应用到JAVA里问题

/*
 * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
 *
 * This software is open source.
 * See the bottom of this file for the licence.
 */

package org.dom4j.xpath;

import junit.textui.TestRunner;

import org.dom4j.AbstractTestCase;
import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.Node;

/**
 * Tests the selectSingleNode method
 * 
 * @author <a href="mailto:[e-mail]">James Strachan </a>
 * @version $Revision: 1.4 $
 */
public class SelectSingleNodeTest extends AbstractTestCase {
    public static void main(String[] args) {
        TestRunner.run(SelectSingleNodeTest.class);
    }

    // Test case(s)
    // -------------------------------------------------------------------------
    public void testSelectSingleNode() throws Exception {
        Document document = getDocument("/xml/test/jimBrain.xml");
        Node node = document.selectSingleNode("/properties/client/threadsafe");
        assertTrue("Found a valid node", node != null);

        Element server = (Element) document
                .selectSingleNode("/properties/server");
        assertTrue("Found a valid server", server != null);

        Element root = document.getRootElement();
        server = (Element) root.selectSingleNode("/properties/server");
        assertTrue("Found a valid server", server != null);

        // try finding it via a relative path
        server = (Element) document.selectSingleNode("properties/server");
        assertTrue("Found a valid server", server != null);

        // now lets use a relative path
        Element connection = (Element) server.selectSingleNode("db/connection");
        assertTrue("Found a valid connection", connection != null);
    }

    /**
     * Test out Steen's bug
     * 
     * @throws Exception
     *             DOCUMENT ME!
     */
    public void testSteensBug() throws Exception {
        Document document = getDocument("/xml/schema/personal.xsd");

        String xpath = "/xs:schema/xs:element[@name='person']";
        assertNotNull("element is null", document.selectSingleNode(xpath));

        Element root = document.getRootElement();

        assertNotNull("element is null", root.selectSingleNode(xpath));
    }
}

/*
 * Redistribution and use of this software and associated documentation
 * ("Software"), with or without modification, are permitted provided that the
 * following conditions are met:
 * 
 * 1. Redistributions of source code must retain copyright statements and
 * notices. Redistributions must also contain a copy of this document.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * 
 * 3. The name "DOM4J" must not be used to endorse or promote products derived
 * from this Software without prior written permission of MetaStuff, Ltd. For
 * written permission, please contact [e-mail].
 * 
 * 4. Products derived from this Software may not be called "DOM4J" nor may
 * "DOM4J" appear in their names without prior written permission of MetaStuff,
 * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
 * 
 * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
 * 
 * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * 
 * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
 */