testnullattributes.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: TestNullAttributes.java,v 1.3.2.2 2004/01/15 22:02:37 per_nyfelt Exp $
 */

package test.dom4j;

import junit.framework.Test;
import junit.framework.TestSuite;
import junit.textui.TestRunner;
import org.dom4j.Attribute;
import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.QName;

/** Tests the use of null attribute values
 *
 * @author <a href="mailto:[e-mail]">James Strachan</a>
 * @version $Revision$
 */
public class TestNullAttributes extends AbstractTestCase {

    protected Document document;
    protected Element element;

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

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

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

    // Implementation methods
    //-------------------------------------------------------------------------
    protected void setUp() throws Exception {
        super.setUp();
        document = nodeFactory.createDocument();
        element = document.addElement("root");
    }

    // Test case(s)
    //-------------------------------------------------------------------------
    public void testStringNames() throws Exception {

        element.addAttribute("foo", null);
        Attribute attribute = element.attribute("foo");
        assertTrue(attribute == null);

        element.addAttribute("foo", "123");
        attribute = element.attribute("foo");
        assertTrue(attribute != null);

        element.addAttribute("foo", null);
        attribute = element.attribute("foo");
        assertTrue(attribute == null);
    }

    public void testQNames() throws Exception {

        QName bar = nodeFactory.createQName("bar");

        element.addAttribute(bar, null);
        Attribute attribute = element.attribute(bar);
        assertTrue(attribute == null);

        element.addAttribute(bar, "123");
        attribute = element.attribute(bar);
        assertTrue(attribute != null);

        element.addAttribute(bar, null);
        attribute = element.attribute(bar);
        assertTrue(attribute == null);
    }

    public void testAttributes() throws Exception {

        Attribute attribute = nodeFactory.createAttribute(element, "v", null);

        assertTrue(attribute.getText() == null);
        assertTrue(attribute.getValue() == null);

        element.add(attribute);
        attribute = element.attribute("v");
        assertTrue(attribute == null);

        attribute = nodeFactory.createAttribute(element, "v", "123");
        element.add(attribute);
        attribute = element.attribute("v");
        assertTrue(attribute != null);

        attribute = nodeFactory.createAttribute(element, "v", null);
        element.add(attribute);
        attribute = element.attribute("v");
        assertTrue(attribute == null);
    }

}


/*
 * 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: TestNullAttributes.java,v 1.3.2.2 2004/01/15 22:02:37 per_nyfelt Exp $
 */