XPathExamplesTest 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.Iterator;
    13  import java.util.List;
    14
    15  import org.dom4j.io.SAXReader;
    16  import org.dom4j.rule.Pattern;
    17
    18  /***
    19   * Performs a number of unit test cases on the XPath engine
    20   *
    21   * @author <a href="mailto:jstrachan@apache.org">James Strachan </a>
    22   * @version $Revision: 1.5 $
    23   */
    24  public class XPathExamplesTest extends AbstractTestCase {
    25      protected SAXReader xmlReader = new SAXReader();
    26
    27      /*** The document on which the tests are being run */
    28      protected Document testDocument;
    29
    30      /*** The context node on which the tests are being run */
    31      protected Node testContext;
    32
    33      /*** factory for XPath, Patterns and nodes */
    34      protected DocumentFactory factory = DocumentFactory.getInstance();
    35
    36      public static void main(String[] args) {
    37          TestRunner.run(XPathExamplesTest.class);
    38      }
    39
    40      // Test case(s)
    41      // -------------------------------------------------------------------------
    42      public void testXPaths() throws Exception {
    43          Document document = getDocument("/xml/test/xpath/tests.xml");
    44          Element root = document.getRootElement();
    45
    46          Iterator iter = root.elementIterator("document");
    47
    48          while (iter.hasNext()) {
    49              Element documentTest = (Element) iter.next();
    50              testDocument(documentTest);
    51          }
    52      }
    53
    54      // Implementation methods
    55      // -------------------------------------------------------------------------
    56      protected void testDocument(Element documentTest) throws Exception {
    57          String url = documentTest.attributeValue("url");
    58          testDocument = xmlReader.read(getFile(url));
    59          assertTrue("Loaded test document: " + url, testDocument != null);
    60
    61          log("Loaded document: " + url);
    62
    63          for (Iterator iter = documentTest.elementIterator("context"); iter
    64                  .hasNext();) {
    65              Element context = (Element) iter.next();
    66              testContext(documentTest, context);
    67          }
    68      }
    69
    70      protected void testContext(Element documentTest, Element context)
    71              throws Exception {
    72          String xpath = context.attributeValue("select");
    73
    74          List list = testDocument.selectNodes(xpath);
    75
    76          assertTrue("Found at least one context nodes to test for path: "
    77                  + xpath, (list != null) && (list.size() > 0));
    78
    79          for (Iterator iter = list.iterator(); iter.hasNext();) {
    80              Object object = iter.next();
    81              assertTrue("Context node is a Node: " + object,
    82                      object instanceof Node);
    83              testContext = (Node) object;
    84
    85              log("Context is now: " + testContext);
    86              runTests(documentTest, context);
    87              log("");
    88          }
    89      }
    90
    91      protected void runTests(Element documentTest, Element context)
    92              throws Exception {
    93          for (Iterator iter = context.elementIterator("test"); iter.hasNext();) {
    94              Element test = (Element) iter.next();
    95              runTest(documentTest, context, test);
    96          }
    97
    98          for (Iterator it = context.elementIterator("valueOf"); it.hasNext();) {
    99              Element valueOf = (Element) it.next();
    100             testValueOf(documentTest, context, valueOf);
    101         }
    102
    103         for (Iterator it = context.elementIterator("pattern"); it.hasNext();) {
    104             Element pattern = (Element) it.next();
    105             testPattern(documentTest, context, pattern);
    106         }
    107
    108         Iterator it = context.elementIterator("fileter");
    109
    110         while (it.hasNext()) {
    111             Element filter = (Element) it.next();
    112             testFilter(documentTest, context, filter);
    113         }
    114     }
    115
    116     protected void runTest(Element documentTest, Element context, Element test)
    117             throws Exception {
    118         String xpath = test.attributeValue("select");
    119
    120         String description = "Path: " + xpath;
    121
    122         String exception = test.attributeValue("exception");
    123         if ((exception != null) && exception.equals("true")) {
    124             try {
    125                 testContext.selectNodes(xpath);
    126                 fail("Exception was not thrown");
    127             } catch (XPathException e) {
    128                 return;
    129             }
    130         }
    131
    132         String count = test.attributeValue("count");
    133
    134         if (count != null) {
    135             int expectedSize = Integer.parseInt(count);
    136             List results = testContext.selectNodes(xpath);
    137
    138             log(description + " found result size: " + results.size());
    139
    140             assertEquals(description + " wrong result size", expectedSize,
    141                     results.size());
    142         }
    143
    144         Element valueOf = test.element("valueOf");
    145
    146         if (valueOf != null) {
    147             Node node = testContext.selectSingleNode(xpath);
    148             assertTrue(description + " found node", node != null);
    149
    150             String expected = valueOf.getText();
    151             String result = node.valueOf(valueOf.attributeValue("select"));
    152
    153             log(description);
    154             log("\texpected: " + expected + " result: " + result);
    155
    156             assertEquals(description, expected, result);
    157         }
    158     }
    159
    160     protected void testValueOf(Element documentTest, Element context,
    161             Element valueOf) throws Exception {
    162         String xpath = valueOf.attributeValue("select");
    163         String description = "valueOf: " + xpath;
    164
    165         String expected = valueOf.getText();
    166         String result = testContext.valueOf(xpath);
    167
    168         log(description);
    169         log("\texpected: " + expected + " result: " + result);
    170
    171         assertEquals(description, expected, result);
    172     }
    173
    174     protected void testPattern(Element documentTest, Element context,
    175             Element patternElement) throws Exception {
    176         String match = patternElement.attributeValue("match");
    177         String description = "match: " + match;
    178
    179         log("");
    180         log(description);
    181
    182         Pattern pattern = factory.createPattern(match);
    183
    184         assertTrue(description, pattern.matches(testContext));
    185     }
    186
    187     protected void testFilter(Element documentTest, Element context,
    188             Element pattern) throws Exception {
    189         String match = pattern.attributeValue("match");
    190         String description = "match: " + match;
    191
    192         assertTrue(description, testContext.matches(match));
    193     }
    194 }
    195
    196 /*
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    198  * ("Software"), with or without modification, are permitted provided that the
    199  * following conditions are met:
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    202  * notices. Redistributions must also contain a copy of this document.
    203  *
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    209  * from this Software without prior written permission of MetaStuff, Ltd. For
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    213  * "DOM4J" appear in their names without prior written permission of MetaStuff,
    214  * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
    215  *
    216  * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
    217  *
    218  * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
    219  * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    220  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    221  * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
    222  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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    225  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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    227  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    228  * POSSIBILITY OF SUCH DAMAGE.
    229  *
    230  * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
    231  */