    1   /*
    2    * $Header$
    3    * $Revision$
    4    * $Date$
    5    *
    6    * ====================================================================
    7    *
    8    * Copyright (C) 2000-2002 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   * $Id$
    60   */
    61
    62  package org.jaxen.function;
    63
    64  import java.io.IOException;
    65
    66  import javax.xml.parsers.DocumentBuilder;
    67  import javax.xml.parsers.DocumentBuilderFactory;
    68  import javax.xml.parsers.ParserConfigurationException;
    69
    70  import junit.framework.TestCase;
    71
    72  import org.jaxen.BaseXPath;
    73  import org.jaxen.FunctionCallException;
    74  import org.jaxen.JaxenException;
    75  import org.jaxen.XPath;
    76  import org.jaxen.dom.DOMXPath;
    77  import org.w3c.dom.Document;
    78  import org.xml.sax.SAXException;
    79
    80  /***
    81   * @author Elliotte Rusty Harold
    82   *
    83   */
    84  public class CountTest extends TestCase {
    85
    86      private Document doc;
    87
    88      public void setUp() throws ParserConfigurationException, SAXException, IOException
    89      {
    90          DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    91          factory.setNamespaceAware(true);
    92          DocumentBuilder builder = factory.newDocumentBuilder();
    93          doc = builder.parse( "xml/basic.xml" );
    94      }
    95
    96
    97      public CountTest(String name) {
    98          super(name);
    99      }
    100
    101     public void testCount3()
    102     {
    103         try
    104         {
    105             XPath xpath = new DOMXPath( "count(3)" );
    106             xpath.selectNodes( doc );
    107             fail("Allowed count of number");
    108        }
    109        catch (FunctionCallException e)
    110         {
    111            assertEquals("count() function can only be used for node-sets", e.getMessage());
    112         }
    113        catch (Exception e)
    114         {
    115             e.printStackTrace();
    116             fail( e.getMessage() );
    117         }
    118     }
    119
    120     public void testCountFunctionRequiresAtLeastOneArgument()
    121       throws JaxenException {
    122
    123         BaseXPath xpath = new DOMXPath("count()");
    124
    125         try {
    126             xpath.selectNodes(doc);
    127             fail("Allowed count function with no arguments");
    128         }
    129         catch (FunctionCallException ex) {
    130             assertNotNull(ex.getMessage());
    131         }
    132
    133     }
    134
    135     public void testCountFunctionRequiresAtMostOneArgument()
    136       throws JaxenException {
    137
    138         BaseXPath xpath = new DOMXPath("count(/*, /@*)");
    139
    140         try {
    141             xpath.selectNodes(doc);
    142             fail("Allowed count function with two arguments");
    143         }
    144         catch (FunctionCallException ex) {
    145             assertNotNull(ex.getMessage());
    146         }
    147
    148     }
    149
    150     public void testCountRootElement()
    151       throws JaxenException {
    152
    153         BaseXPath xpath = new DOMXPath("count(/*)");
    154         Double result = (Double) xpath.evaluate(doc);
    155         assertEquals(1.0, result.doubleValue(), 0.00001);
    156
    157     }
    158
    159
    160 }