1 /* 2 * Copyright (C) 2009 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package libcore.xml; 18 19 import junit.framework.TestCase; 20 import org.w3c.dom.Document; 21 import org.w3c.dom.Element; 22 import org.w3c.dom.Node; 23 import org.w3c.dom.NodeList; 24 import tests.support.resource.Support_Resources; 25 26 import javax.xml.parsers.DocumentBuilder; 27 import javax.xml.parsers.DocumentBuilderFactory; 28 import java.io.ByteArrayInputStream; 29 import java.io.File; 30 import java.util.ArrayList; 31 import java.util.List; 32 33 public class NodeTest extends TestCase { 34 35 /** 36 * For bug 779: Node#getNextSibling throws IndexOutOfBoundsException. 37 */ test_getNextSibling()38 public void test_getNextSibling() throws Exception { 39 // Calling getNextSibling when there is no next sibling should return null. 40 // From http://code.google.com/p/android/issues/detail?id=779. 41 ByteArrayInputStream bis = new ByteArrayInputStream("<root/>".getBytes()); 42 Document document = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(bis); 43 Node root = document.getDocumentElement(); 44 assertNull(root.getNextSibling()); 45 } 46 testGetBaseUri()47 public void testGetBaseUri() throws Exception { 48 DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder(); 49 File file = Support_Resources.resourceToTempFile("/simple.xml"); 50 Document document = builder.parse(file); 51 52 assertFileUriEquals(file, document.getBaseURI()); 53 54 Element documentElement = document.getDocumentElement(); 55 for (Node node : flattenSubtree(documentElement)) { 56 if (node.getNodeType() == Node.ELEMENT_NODE 57 || node.getNodeType() == Node.DOCUMENT_NODE) { 58 assertFileUriEquals(file, node.getBaseURI()); 59 } else { 60 assertNull("Unexpected base URI for " + node, node.getBaseURI()); 61 } 62 } 63 64 // TODO: test other node types 65 // TODO: test resolution of relative paths 66 // TODO: test URI sanitization 67 } 68 assertFileUriEquals(File expectedFile, String actual)69 private void assertFileUriEquals(File expectedFile, String actual) { 70 assertTrue("Expected URI for: " + expectedFile + " but was " + actual + ". ", 71 actual.equals("file:" + expectedFile) 72 || actual.equals("file://" + expectedFile)); 73 } 74 flattenSubtree(Node subtree)75 private List<Node> flattenSubtree(Node subtree) { 76 List<Node> result = new ArrayList<Node>(); 77 traverse(subtree, result); 78 return result; 79 } 80 traverse(Node node, List<Node> sink)81 private void traverse(Node node, List<Node> sink) { 82 sink.add(node); 83 84 NodeList children = node.getChildNodes(); 85 for (int i = 0; i < children.getLength(); i++) { 86 traverse(children.item(i), sink); 87 } 88 } 89 } 90