    1   /*
    2    * $Header: /home/projects/jaxen/scm/jaxen/src/java/test/org/jaxen/dom/XPathTest.java,v 1.17 2005/05/06 17:21:25 elharo Exp $
    3    * $Revision: 1.17 $
    4    * $Date: 2005/05/06 17:21:25 $
    5    *
    6    * ====================================================================
    7    *
    8    * Copyright (C) 2000-2003 bob mcwhirter & James Strachan.
    9    * All rights reserved.
    10   *
    11   * Redistribution and use in source and binary forms, with or without
    12   * modification, are permitted provided that the following conditions
    13   * are met:
    14   *
    15   * 1. Redistributions of source code must retain the above copyright
    16   *    notice, this list of conditions, and the following disclaimer.
    17   *
    18   * 2. Redistributions in binary form must reproduce the above copyright
    19   *    notice, this list of conditions, and the disclaimer that follows
    20   *    these conditions in the documentation and/or other materials
    21   *    provided with the distribution.
    22   *
    23   * 3. The name "Jaxen" must not be used to endorse or promote products
    24   *    derived from this software without prior written permission.  For
    25   *    written permission, please contact license@jaxen.org.
    26   *
    27   * 4. Products derived from this software may not be called "Jaxen", nor
    28   *    may "Jaxen" appear in their name, without prior written permission
    29   *    from the Jaxen Project Management (pm@jaxen.org).
    30   *
    31   * In addition, we request (but do not require) that you include in the
    32   * end-user documentation provided with the redistribution and/or in the
    33   * software itself an acknowledgement equivalent to the following:
    34   *     "This product includes software developed by the
    35   *      Jaxen Project (http://www.jaxen.org/)."
    36   * Alternatively, the acknowledgment may be graphical using the logos
    37   * available at http://www.jaxen.org/
    38   *
    39   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
    40   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
    41   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    42   * DISCLAIMED.  IN NO EVENT SHALL THE Jaxen AUTHORS OR THE PROJECT
    43   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    44   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    45   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
    46   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
    47   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
    48   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
    49   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    50   * SUCH DAMAGE.
    51   *
    52   * ====================================================================
    53   * This software consists of voluntary contributions made by many
    54   * individuals on behalf of the Jaxen Project and was originally
    55   * created by bob mcwhirter <bob@werken.com> and
    56   * James Strachan <jstrachan@apache.org>.  For more information on the
    57   * Jaxen Project, please see <http://www.jaxen.org/>.
    58   *
    59   * $Id: XPathTest.java,v 1.17 2005/05/06 17:21:25 elharo Exp $
    60   */
    61
    62
    63  package org.jaxen.dom;
    64
    65  import junit.framework.TestCase;
    66
    67  import javax.xml.parsers.DocumentBuilder;
    68  import javax.xml.parsers.DocumentBuilderFactory;
    69  import javax.xml.parsers.ParserConfigurationException;
    70
    71  import java.io.IOException;
    72  import java.util.Iterator;
    73  import java.util.List;
    74
    75  import org.jaxen.JaxenException;
    76  import org.jaxen.XPath;
    77  import org.w3c.dom.Document;
    78  import org.w3c.dom.Element;
    79  import org.w3c.dom.Node;
    80  import org.xml.sax.SAXException;
    81
    82  public class XPathTest extends TestCase
    83  {
    84
    85      private static final String BASIC_XML = "xml/basic.xml";
    86      private Document doc;
    87      private DocumentBuilderFactory factory;
    88
    89      public XPathTest(String name)
    90      {
    91          super( name );
    92      }
    93
    94      public void setUp() throws ParserConfigurationException {
    95          factory = DocumentBuilderFactory.newInstance();
    96          factory.setNamespaceAware(true);
    97          doc = factory.newDocumentBuilder().newDocument();
    98      }
    99
    100
    101     public void testConstruction() throws JaxenException
    102     {
    103         DOMXPath xpath = new DOMXPath( "/foo/bar/baz" );
    104         assertEquals("/foo/bar/baz", xpath.toString());
    105     }
    106
    107     public void testConstructionWithNamespacePrefix() throws JaxenException
    108     {
    109         DOMXPath xpath = new DOMXPath( "/p:foo/p:bar/a:baz" );
    110         assertEquals("/p:foo/p:bar/a:baz", xpath.toString());
    111     }
    112
    113     public void testNamespaceDeclarationsAreNotAttributes()
    114       throws JaxenException {
    115
    116         Element root = doc.createElementNS("http://www.example.org/", "root");
    117         doc.appendChild(root);
    118         root.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns", "http://www.example.org/");
    119
    120         DOMXPath xpath = new DOMXPath( "count(/*/@*)" );
    121
    122         Number value = xpath.numberValueOf(doc);
    123         assertEquals(0, value.intValue());
    124
    125     }
    126
    127     // Jaxen-54
    128     public void testUpdateDOMNodesReturnedBySelectNodes()
    129       throws JaxenException {
    130
    131         Element root = doc.createElementNS("http://www.example.org/", "root");
    132         doc.appendChild(root);
    133         root.appendChild(doc.createComment("data"));
    134
    135         DOMXPath xpath = new DOMXPath( "//comment()" );
    136
    137         List results = xpath.selectNodes(doc);
    138         Node backroot = (Node) results.get(0);
    139         backroot.setNodeValue("test");
    140         assertEquals("test", backroot.getNodeValue());
    141
    142     }
    143
    144     public void testSelection() throws JaxenException, ParserConfigurationException, SAXException, IOException
    145     {
    146         XPath xpath = new DOMXPath( "/foo/bar/baz" );
    147
    148         DocumentBuilder builder = factory.newDocumentBuilder();
    149
    150         Document doc = builder.parse( BASIC_XML );
    151
    152         List results = xpath.selectNodes( doc );
    153
    154         assertEquals( 3,
    155                       results.size() );
    156
    157         Iterator iter = results.iterator();
    158
    159         assertEquals( "baz",
    160                       ((Element)iter.next()).getLocalName() );
    161
    162         assertEquals( "baz",
    163                       ((Element)iter.next()).getLocalName() );
    164
    165         assertEquals( "baz",
    166                       ((Element)iter.next()).getLocalName() );
    167
    168         assertTrue( ! iter.hasNext() );
    169
    170     }
    171
    172     // Jaxen-22
    173     public void testPrecedingAxisWithPositionalPredicate()
    174       throws JaxenException, ParserConfigurationException, SAXException, IOException {
    175
    176         XPath xpath = new DOMXPath( "//c/preceding::*[1][name()='d']" );
    177         DocumentBuilder builder = factory.newDocumentBuilder();
    178
    179         Document doc = builder.parse( "xml/web2.xml" );
    180         List result = xpath.selectNodes(doc);
    181         assertEquals(1, result.size());
    182
    183     }
    184
    185
    186     // Jaxen-22
    187     public void testJaxen22()
    188       throws JaxenException, ParserConfigurationException, SAXException, IOException {
    189
    190         XPath xpath = new DOMXPath( "name(//c/preceding::*[1])" );
    191         DocumentBuilder builder = factory.newDocumentBuilder();
    192
    193         doc = builder.parse("xml/web2.xml");
    194         Object result = xpath.evaluate(doc);
    195         assertEquals("d", result);
    196     }
    197
    198
    199     public void testPrecedingAxisInDocumentOrder()
    200       throws JaxenException {
    201
    202         XPath xpath = new DOMXPath( "preceding::*" );
    203
    204         Element root = doc.createElement("root");
    205         doc.appendChild(root);
    206
    207         Element a = doc.createElement("a");
    208         root.appendChild(a);
    209         Element b = doc.createElement("b");
    210         root.appendChild(b);
    211         Element c = doc.createElement("c");
    212         a.appendChild(c);
    213
    214         List result = xpath.selectNodes(b);
    215         assertEquals(2, result.size());
    216         assertEquals(a, result.get(0));
    217         assertEquals(c, result.get(1));
    218     }
    219
    220
    221 }