testdom.java

Java的面向对象数据库系统的源代码

/*
 * Copyright 2001 (C) MetaStuff, Ltd. All Rights Reserved.
 *
 * This software is open source.
 * See the bottom of this file for the licence.
 *
 * $Id: TestDOM.java,v 1.2 2003/07/12 12:13:06 per_nyfelt Exp $
 */

package test.dom4j.dom;

import junit.framework.Test;
import junit.framework.TestSuite;
import junit.textui.TestRunner;
import org.dom4j.dom.DOMDocument;
import org.dom4j.dom.DOMDocumentFactory;
import org.dom4j.io.DOMWriter;
import org.dom4j.io.SAXReader;
import org.w3c.dom.DOMException;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

import java.io.File;
import java.io.InputStream;

/** A test harness to test the native DOM implementation of dom4j
  *
  * @author <a href="mailto:[e-mail]">James Strachan</a>
  * @version $Revision: 1.2 $
  */
public class TestDOM extends test.dom4j.AbstractTestCase {

    protected static boolean VERBOSE = false;

    /** Elements. */
    private long elements;

    /** Attributes. */
    private long attributes;

    /** Characters. */
    private long characters;



    public static void main( String[] args ) {
        TestRunner.run( suite() );
    }

    public static Test suite() {
        return new TestSuite( TestDOM.class );
    }

    public TestDOM(String name) {
        super(name);
    }

    // Test case(s)
    //-------------------------------------------------------------------------
    public void testCount() throws Exception {
        DOMWriter domWriter = new DOMWriter();

        long start = System.currentTimeMillis();
        org.w3c.dom.Document domDocument = domWriter.write( document );
        long end = System.currentTimeMillis();

        System.out.println( "Converting to a W3C Document took: " + (end - start) + " milliseconds" );

        traverse( domDocument );

        log( "elements: " + elements
            + " attributes: " + attributes
            + " characters: " + characters
        );
    }

    /** Tests the bug found by Soumanjoy */
    public void testClassCastBug() throws Exception {
        DOMDocument oDocument = new DOMDocument("Root");
        org.w3c.dom.Element oParent = oDocument.createElement("Parent");
        //<-- Fails here when the code is broken.

        oParent.setAttribute("name", "N01");
        oParent.setAttribute("id", "ID01");

        oDocument.appendChild(oParent); //<-- Fails here, Error message is below
    }

    public void testReplaceChild() throws Exception {
        DOMDocument document = new DOMDocument("Root");
        org.w3c.dom.Element parent = document.createElement("Parent");
        org.w3c.dom.Element first = document.createElement("FirstChild");
        org.w3c.dom.Element second = document.createElement("SecondChild");
        org.w3c.dom.Element third = document.createElement("ThirdChild");

        document.appendChild(parent);
        parent.appendChild(first);
        parent.appendChild(second);
        parent.appendChild(third);

        org.w3c.dom.Element newFirst = document.createElement("NewFirst");
        org.w3c.dom.Element oldFirst = (org.w3c.dom.Element) parent.replaceChild(newFirst, first);

        /* check the return value of replaceChild */
        assertEquals(oldFirst, first);

        /* make sure the old node has been replaced */
        NodeList children = parent.getChildNodes();
        Node firstChild = children.item(0);
        assertEquals(Node.ELEMENT_NODE, firstChild.getNodeType());
        assertEquals(newFirst, firstChild);

        /* try to replace a node that doesn't exist */
        org.w3c.dom.Element badNode = document.createElement("No Child");
        try {
            parent.replaceChild(newFirst, badNode);
            fail("DOMException should be throwed when trying to replace non existing child");
        } catch (DOMException e) {
            assertEquals(DOMException.NOT_FOUND_ERR, e.code);
        }
    }

    // Implementation methods
    //-------------------------------------------------------------------------

    protected void setUp() throws Exception {
        // todo create an ozone version of the DOMDocumentFactory
        SAXReader reader = new SAXReader( DOMDocumentFactory.getInstance() );
        InputStream testDocument = getClass().getResourceAsStream("/xml/contents.xml");
        if (testDocument == null) {
            document = reader.read( new File( "xml/contents.xml" ) );
        } else {
            document = reader.read( testDocument );
        }
    }
    /** Traverses the specified node, recursively. */
    protected void traverse(Node node) {

        // is there anything to do?
        if (node == null) {
            return;
        }

        int type = node.getNodeType();
        switch (type) {
            case Node.DOCUMENT_NODE: {
                elements            = 0;
                attributes          = 0;
                characters          = 0;
                traverse(((org.w3c.dom.Document)node).getDocumentElement());
                break;
            }

            case Node.ELEMENT_NODE: {
                elements++;
                NamedNodeMap attrs = node.getAttributes();
                if (attrs != null) {
                    attributes += attrs.getLength();
                }
                NodeList children = node.getChildNodes();
                if (children != null) {
                    int len = children.getLength();
                    for (int i = 0; i < len; i++) {
                        traverse(children.item(i));
                    }
                }
                break;
            }

            case Node.ENTITY_REFERENCE_NODE: {
                NodeList children = node.getChildNodes();
                if (children != null) {
                    int len = children.getLength();
                    for (int i = 0; i < len; i++) {
                        traverse(children.item(i));
                    }
                }
                break;
            }

            case Node.CDATA_SECTION_NODE: {
                characters += node.getNodeValue().length();
                break;
            }

            case Node.TEXT_NODE: {
                characters += node.getNodeValue().length();
                break;
            }
        }
    }
}




/*
 * 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://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 (C) MetaStuff, Ltd. All Rights Reserved.
 *
 * $Id: TestDOM.java,v 1.2 2003/07/12 12:13:06 per_nyfelt Exp $
 */