1 /* 2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package dom; 24 25 import java.io.IOException; 26 import java.io.InputStream; 27 import javax.xml.parsers.DocumentBuilder; 28 import javax.xml.parsers.DocumentBuilderFactory; 29 import javax.xml.parsers.ParserConfigurationException; 30 import org.testng.Assert; 31 import org.testng.annotations.DataProvider; 32 import org.testng.annotations.Test; 33 import org.w3c.dom.Document; 34 import org.w3c.dom.DOMImplementation; 35 import org.w3c.dom.Element; 36 import org.xml.sax.SAXException; 37 38 /* 39 * @bug 8135283 8138721 40 * @summary Tests for the Element Traversal interface. 41 */ 42 43 public class ElementTraversal { 44 /* 45 Verifies that ElementTraversal is supported. 46 */ 47 @Test(dataProvider = "doc") 48 public void testHasFeature(Document doc) { 49 DOMImplementation di = doc.getImplementation(); 50 51 //return false if feasure == null 52 Assert.assertFalse(di.hasFeature(null, null)); 53 54 //A feature is supported without specifying version 55 Assert.assertTrue(di.hasFeature("ElementTraversal", null)); 56 Assert.assertTrue(di.hasFeature("ElementTraversal", "")); 57 58 //ElementTraversal Version 1.0 is supported 59 Assert.assertTrue(di.hasFeature("ElementTraversal", "1.0")); 60 } 61 62 /* 63 Verifies the ElementTraversal interface by exercising all of its five 64 methods while reading through the xml document. 65 */ 66 @Test(dataProvider = "doc") 67 public void test(Document doc) { 68 org.w3c.dom.ElementTraversal et = (org.w3c.dom.ElementTraversal)doc.getDocumentElement(); 69 //4 toys are listed 70 Assert.assertEquals(et.getChildElementCount(), 4); 71 72 //The 1st is the Martian 73 Element toy1 = et.getFirstElementChild(); 74 verify(toy1, "1", "The Martian"); 75 76 //toy1 has no previous element 77 Element noE = ((org.w3c.dom.ElementTraversal)toy1).getPreviousElementSibling(); 78 Assert.assertEquals(noE, null); 79 80 //The 1st toy's next element is toy2, the Doll 81 Element toy2 = ((org.w3c.dom.ElementTraversal)toy1).getNextElementSibling(); 82 verify(toy2, "2", "The Doll"); 83 84 //The last toy is toy4, the Spaceship 85 Element toy4 = et.getLastElementChild(); 86 verify(toy4, "4", "The Spaceship"); 87 88 //toy4 has no next element 89 noE = ((org.w3c.dom.ElementTraversal)toy4).getNextElementSibling(); 90 Assert.assertEquals(noE, null); 91 92 //toy4's previous element is toy3, Transformer X 93 //toy3 is also an EntityReference 94 Element toy3 = ((org.w3c.dom.ElementTraversal)toy4).getPreviousElementSibling(); 95 verify(toy3, "3", "Transformer X"); 96 } 97 98 /** 99 * Verifies that the values matches the specified element. 100 * @param id the value of the id attribute 101 * @param name the value of its name element 102 */ 103 void verify(Element e, String id, String name) { 104 Assert.assertEquals(e.getAttribute("id"), id); 105 Element toyName = ((org.w3c.dom.ElementTraversal)e).getFirstElementChild(); 106 Assert.assertEquals(toyName.getTextContent(), name); 107 } 108 109 110 /* 111 * DataProvider: a Document object 112 */ 113 @DataProvider(name = "doc") 114 Object[][] getXPath() { 115 return new Object[][]{{getDoc()}}; 116 } 117 Document getDoc() { 118 InputStream xmlFile = getClass().getResourceAsStream("ElementTraversal.xml"); 119 Document doc = null; 120 try { 121 DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); 122 dbf.setExpandEntityReferences(false); 123 DocumentBuilder db = dbf.newDocumentBuilder(); 124 doc = db.parse(xmlFile); 125 } catch (ParserConfigurationException | SAXException | IOException e) { 126 System.out.println("fail: " + e.getMessage()); 127 } 128 129 return doc; 130 } 131 }