    1   /*
    2    * $Header$
    3    * $Revision$
    4    * $Date$
    5    *
    6    * ====================================================================
    7    *
    8    * Copyright (C) 2005 Elliotte Rusty Harold.
    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 javax.xml.parsers.DocumentBuilder;
    65  import javax.xml.parsers.DocumentBuilderFactory;
    66  import javax.xml.parsers.ParserConfigurationException;
    67
    68  import junit.framework.TestCase;
    69
    70  import org.jaxen.BaseXPath;
    71  import org.jaxen.FunctionCallException;
    72  import org.jaxen.JaxenException;
    73  import org.jaxen.XPath;
    74  import org.jaxen.dom.DOMXPath;
    75  import org.w3c.dom.Document;
    76
    77  /***
    78   * @author Elliotte Rusty Harold
    79   *
    80   */
    81  public class StringLengthTest extends TestCase {
    82
    83      private Document doc;
    84
    85      public void setUp() throws ParserConfigurationException
    86      {
    87          DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    88          factory.setNamespaceAware(true);
    89          DocumentBuilder builder = factory.newDocumentBuilder();
    90          doc = builder.newDocument();
    91          doc.appendChild(doc.createElement("root"));
    92      }
    93
    94
    95      public StringLengthTest(String name) {
    96          super(name);
    97      }
    98
    99      public void testStringLengthOfNumber() throws JaxenException
    100     {
    101         XPath xpath = new DOMXPath( "string-length(3)" );
    102         Double result = (Double) xpath.evaluate( doc );
    103         assertEquals(1, result.intValue());
    104     }
    105
    106     public void testStringLengthOfEmptyString() throws JaxenException
    107     {
    108         XPath xpath = new DOMXPath( "string-length('')" );
    109         Double result = (Double) xpath.evaluate( doc );
    110         assertEquals(0, result.intValue());
    111     }
    112
    113     public void testStringLengthOfString() throws JaxenException
    114     {
    115         XPath xpath = new DOMXPath( "string-length('0123456789')" );
    116         Double result = (Double) xpath.evaluate( doc );
    117         assertEquals(10, result.intValue());
    118     }
    119
    120     public void testStringLengthFunctionOperatesOnContextNode()
    121       throws JaxenException {
    122
    123         BaseXPath xpath = new DOMXPath("string-length()");
    124         Double result = (Double) xpath.evaluate( doc );
    125         assertEquals(0, result.intValue());
    126
    127     }
    128
    129     public void testStringLengthFunctionCountsUnicodeCharactersNotJavaChars()
    130       throws JaxenException {
    131
    132         BaseXPath xpath = new DOMXPath("string-length('\uD834\uDD00')");
    133         Double result = (Double) xpath.evaluate( doc );
    134         assertEquals(1, result.intValue());
    135
    136     }
    137
    138     public void testStringLengthFunctionWithMalformedString()
    139       throws JaxenException {
    140
    141         BaseXPath xpath = new DOMXPath("string-length('\uD834A\uDD00')");
    142         try {
    143             xpath.evaluate( doc );
    144             fail("Allowed Malformed string");
    145         }
    146         catch (FunctionCallException ex) {
    147             assertNotNull(ex.getMessage());
    148         }
    149
    150     }
    151
    152     public void testStringLengthFunctionRequiresExactlyOneArgument()
    153       throws JaxenException {
    154
    155         BaseXPath xpath = new DOMXPath("string-length('', '')");
    156
    157         try {
    158             xpath.selectNodes(doc);
    159             fail("Allowed string-length function with two arguments");
    160         }
    161         catch (FunctionCallException ex) {
    162             assertNotNull(ex.getMessage());
    163         }
    164
    165     }
    166
    167 }