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 }