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 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 StringLengthTest 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.newDocument(); 94 doc.appendChild(doc.createElement("root")); 95 } 96 97 98 public StringLengthTest(String name) { 99 super(name); 100 } 101 102 public void testStringLengthOfNumber() throws JaxenException 103 { 104 XPath xpath = new DOMXPath( "string-length(3)" ); 105 Double result = (Double) xpath.evaluate( doc ); 106 assertEquals(1, result.intValue()); 107 } 108 109 public void testStringLengthOfEmptyString() throws JaxenException 110 { 111 XPath xpath = new DOMXPath( "string-length('')" ); 112 Double result = (Double) xpath.evaluate( doc ); 113 assertEquals(0, result.intValue()); 114 } 115 116 public void testStringLengthOfString() throws JaxenException 117 { 118 XPath xpath = new DOMXPath( "string-length('0123456789')" ); 119 Double result = (Double) xpath.evaluate( doc ); 120 assertEquals(10, result.intValue()); 121 } 122 123 public void testStringLengthFunctionOperatesOnContextNode() 124 throws JaxenException { 125 126 BaseXPath xpath = new DOMXPath("string-length()"); 127 Double result = (Double) xpath.evaluate( doc ); 128 assertEquals(0, result.intValue()); 129 130 } 131 132 public void testStringLengthFunctionRequiresExactlyOneArgument() 133 throws JaxenException { 134 135 BaseXPath xpath = new DOMXPath("string-length('', '')"); 136 137 try { 138 xpath.selectNodes(doc); 139 fail("Allowed string-length function with two arguments"); 140 } 141 catch (FunctionCallException ex) { 142 assertNotNull(ex.getMessage()); 143 } 144 145 } 146 147 }