ElementTraversal.java revision 968:874082a9b565
1/* 2 * Copyright (c) 2015, 2016, 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 */ 23package dom; 24 25import java.io.IOException; 26import java.io.InputStream; 27import javax.xml.parsers.DocumentBuilder; 28import javax.xml.parsers.DocumentBuilderFactory; 29import javax.xml.parsers.ParserConfigurationException; 30import org.testng.Assert; 31import org.testng.annotations.DataProvider; 32import org.testng.annotations.Listeners; 33import org.testng.annotations.Test; 34import org.w3c.dom.Document; 35import org.w3c.dom.DOMImplementation; 36import org.w3c.dom.Element; 37import org.xml.sax.SAXException; 38 39/* 40 * @test 41 * @bug 8135283 8138721 42 * @library /javax/xml/jaxp/libs /javax/xml/jaxp/unittest 43 * @run testng/othervm -DrunSecMngr=true dom.ElementTraversal 44 * @run testng/othervm dom.ElementTraversal 45 * @summary Tests for the Element Traversal interface. 46 */ 47 48@Listeners({jaxp.library.FilePolicy.class}) 49public class ElementTraversal { 50 /* 51 Verifies that ElementTraversal is supported. 52 */ 53 @Test(dataProvider = "doc") 54 public void testHasFeature(Document doc) { 55 DOMImplementation di = doc.getImplementation(); 56 57 //return false if feasure == null 58 Assert.assertFalse(di.hasFeature(null, null)); 59 60 //A feature is supported without specifying version 61 Assert.assertTrue(di.hasFeature("ElementTraversal", null)); 62 Assert.assertTrue(di.hasFeature("ElementTraversal", "")); 63 64 //ElementTraversal Version 1.0 is supported 65 Assert.assertTrue(di.hasFeature("ElementTraversal", "1.0")); 66 } 67 68 /* 69 Verifies the ElementTraversal interface by exercising all of its five 70 methods while reading through the xml document. 71 */ 72 @Test(dataProvider = "doc") 73 public void test(Document doc) { 74 org.w3c.dom.ElementTraversal et = (org.w3c.dom.ElementTraversal)doc.getDocumentElement(); 75 //4 toys are listed 76 Assert.assertEquals(et.getChildElementCount(), 4); 77 78 //The 1st is the Martian 79 Element toy1 = et.getFirstElementChild(); 80 verify(toy1, "1", "The Martian"); 81 82 //toy1 has no previous element 83 Element noE = ((org.w3c.dom.ElementTraversal)toy1).getPreviousElementSibling(); 84 Assert.assertEquals(noE, null); 85 86 //The 1st toy's next element is toy2, the Doll 87 Element toy2 = ((org.w3c.dom.ElementTraversal)toy1).getNextElementSibling(); 88 verify(toy2, "2", "The Doll"); 89 90 //The last toy is toy4, the Spaceship 91 Element toy4 = et.getLastElementChild(); 92 verify(toy4, "4", "The Spaceship"); 93 94 //toy4 has no next element 95 noE = ((org.w3c.dom.ElementTraversal)toy4).getNextElementSibling(); 96 Assert.assertEquals(noE, null); 97 98 //toy4's previous element is toy3, Transformer X 99 //toy3 is also an EntityReference 100 Element toy3 = ((org.w3c.dom.ElementTraversal)toy4).getPreviousElementSibling(); 101 verify(toy3, "3", "Transformer X"); 102 } 103 104 /** 105 * Verifies that the values matches the specified element. 106 * @param id the value of the id attribute 107 * @param name the value of its name element 108 */ 109 void verify(Element e, String id, String name) { 110 Assert.assertEquals(e.getAttribute("id"), id); 111 Element toyName = ((org.w3c.dom.ElementTraversal)e).getFirstElementChild(); 112 Assert.assertEquals(toyName.getTextContent(), name); 113 } 114 115 116 /* 117 * DataProvider: a Document object 118 */ 119 @DataProvider(name = "doc") 120 public Object[][] getXPath() { 121 return new Object[][]{{getDoc()}}; 122 } 123 Document getDoc() { 124 InputStream xmlFile = getClass().getResourceAsStream("ElementTraversal.xml"); 125 Document doc = null; 126 try { 127 DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); 128 dbf.setExpandEntityReferences(false); 129 DocumentBuilder db = dbf.newDocumentBuilder(); 130 doc = db.parse(xmlFile); 131 } catch (ParserConfigurationException | SAXException | IOException e) { 132 System.out.println("fail: " + e.getMessage()); 133 } 134 135 return doc; 136 } 137} 138 139