XPathTest xref

    1   /*
    2    * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
    3    *
    4    * This software is open source.
    5    * See the bottom of this file for the licence.
    6    */
    7
    8   package org.dom4j;
    9
    10  import junit.textui.TestRunner;
    11
    12  import java.util.List;
    13
    14  import org.dom4j.tree.DefaultElement;
    15  import org.dom4j.xpath.DefaultXPath;
    16
    17  /***
    18   * A test harness to test XPath expression evaluation in DOM4J
    19   *
    20   * @author <a href="mailto:james.strachan@metastuff.com">James Strachan </a>
    21   * @version $Revision: 1.4 $
    22   */
    23  public class XPathTest extends AbstractTestCase {
    24      protected static String[] paths = {
    25              ".",
    26              "*",
    27              "/",
    28              "/.",
    29              "/*",
    30              "/node()",
    31              "/child::node()",
    32              "/self::node()",
    33              "root",
    34              "/root",
    35              "/root/author",
    36              "text()",
    37              "//author",
    38              "//author/text()",
    39              "//@location",
    40              "//attribute::*",
    41              "//namespace::*",
    42              "normalize-space(/root)",
    43              "//author[@location]",
    44              "//author[@location='UK']",
    45              "root|author",
    46              "//*[.='James Strachan']",
    47              "//root/author[1]",
    48              "normalize-space(/root/author)",
    49              "normalize-space(' a  b  c  d ')",
    50              "//root|//author[1]|//author[2]",
    51              "//root/author[2]",
    52              "//root/author[3]"};
    53
    54      public static void main(String[] args) {
    55          TestRunner.run(XPathTest.class);
    56      }
    57
    58      // Test case(s)
    59      // -------------------------------------------------------------------------
    60      public void testBug1116471() throws Exception {
    61          String xml = "<a><b>Water T &amp; D-46816</b></a>";
    62          String expected = "Water T & D-46816";
    63
    64          Document doc = DocumentHelper.parseText(xml);
    65          String result = (String) doc.selectObject("string(a/b[1])");
    66
    67          assertEquals("xpath result not correct", expected, result);
    68
    69          Node node = doc.selectSingleNode("a/b");
    70          String result2 = node.getStringValue();
    71
    72          assertEquals("xpath result not correct", expected, result2);
    73      }
    74
    75      public void testXPaths() throws Exception {
    76          int size = paths.length;
    77
    78          for (int i = 0; i < size; i++) {
    79              testXPath(paths[i]);
    80          }
    81      }
    82
    83      public void testCreateXPathBug() throws Exception {
    84          Element element = new DefaultElement("foo");
    85          XPath xpath = element.createXPath("//bar");
    86
    87          assertTrue(("created a valid XPath: " + xpath) != null);
    88      }
    89
    90      public void testBug857704() throws Exception {
    91          Document doc = DocumentHelper
    92                  .parseText("<foo xmlns:bar='http://blort'/>");
    93          doc.selectNodes("//*[preceding-sibling::*]"); // shouldn't throw NPE
    94      }
    95
    96      public void testBooleanValueOf() throws Exception {
    97          Document doc = DocumentHelper.parseText("<root><foo>blah</foo></root>");
    98
    99          XPath path = new DefaultXPath("//root");
    100         assertTrue(path.booleanValueOf(doc));
    101
    102         path = new DefaultXPath("//root2");
    103         assertFalse(path.booleanValueOf(doc));
    104     }
    105
    106     // Implementation methods
    107     // -------------------------------------------------------------------------
    108     protected void testXPath(String xpathExpression) {
    109         log("Searched path: " + xpathExpression);
    110
    111         XPath xpath = DocumentHelper.createXPath(xpathExpression);
    112
    113         List list = xpath.selectNodes(document);
    114
    115         if (list == null) {
    116             log("null");
    117         } else {
    118             log("[");
    119
    120             for (int i = 0, size = list.size(); i < size; i++) {
    121                 Object object = list.get(i);
    122
    123                 String text = "null";
    124
    125                 if (object instanceof Node) {
    126                     Node node = (Node) object;
    127
    128                     text = node.asXML();
    129                 } else if (object != null) {
    130                     text = object.toString();
    131                 }
    132
    133                 log("    " + text);
    134             }
    135
    136             log("]");
    137         }
    138
    139         log("...........................................");
    140     }
    141 }
    142
    143 /*
    144  * Redistribution and use of this software and associated documentation
    145  * ("Software"), with or without modification, are permitted provided that the
    146  * following conditions are met:
    147  *
    148  * 1. Redistributions of source code must retain copyright statements and
    149  * notices. Redistributions must also contain a copy of this document.
    150  *
    151  * 2. Redistributions in binary form must reproduce the above copyright notice,
    152  * this list of conditions and the following disclaimer in the documentation
    153  * and/or other materials provided with the distribution.
    154  *
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    156  * from this Software without prior written permission of MetaStuff, Ltd. For
    157  * written permission, please contact dom4j-info@metastuff.com.
    158  *
    159  * 4. Products derived from this Software may not be called "DOM4J" nor may
    160  * "DOM4J" appear in their names without prior written permission of MetaStuff,
    161  * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
    162  *
    163  * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
    164  *
    165  * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
    166  * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    167  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    168  * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
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    174  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    175  * POSSIBILITY OF SUCH DAMAGE.
    176  *
    177  * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
    178  */