1 /* 2 * Copyright (C) 2010 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.xml.sax.Attributes; 21 import org.xml.sax.InputSource; 22 import org.xml.sax.XMLReader; 23 import org.xml.sax.helpers.DefaultHandler; 24 25 import javax.xml.parsers.SAXParserFactory; 26 import java.io.StringReader; 27 import java.util.ArrayList; 28 import java.util.Arrays; 29 import java.util.List; 30 31 /** 32 * Tests that we both report and retrieve attributes using the appropriate 33 * names for different combinations of namespaces and namespace prefixes. 34 */ 35 public class NamespacedAttributesLookupTest extends TestCase { 36 37 private static final String SAX_PROPERTY_NS = 38 "http://xml.org/sax/features/namespaces"; 39 private static final String SAX_PROPERTY_NS_PREFIXES = 40 "http://xml.org/sax/features/namespace-prefixes"; 41 42 private static String xml = "<?xml version='1.0' encoding='UTF-8'?>" + 43 "<test xmlns='http://foo' xmlns:bar='http://bar' xmlns:baz='http://baz' baz:c='a'>" + 44 "<b c='w' bar:c='x'/>" + 45 "<bar:e baz:c='y' bar:c='z'/>" + 46 "</test>"; 47 48 public void testNamespace() throws Exception { 49 List<String> expected = Arrays.asList( 50 "http://foo,test\n" + 51 " http://baz,c\n" + 52 " http://bar+c=null,\n" + 53 " bar:c=null\n", 54 55 "http://foo,b\n" + 56 " ,c\n" + 57 " http://bar,c\n" + 58 " http://bar+c=x,\n" + 59 " bar:c=x\n", 60 61 "http://bar,e\n" + 62 " http://baz,c\n" + 63 " http://bar,c\n" + 64 " http://bar+c=z,\n" + 65 " bar:c=z\n"); 66 67 boolean namespace = true; 68 boolean namespacePrefixes = false; 69 assertEquals(expected, getStartElements(xml, namespace, namespacePrefixes)); 70 } 71 72 public void testNamespacePrefixes() throws Exception { 73 List<String> expected = Arrays.asList( 74 "test\n" + 75 " xmlns\n" + 76 " xmlns:bar\n" + 77 " xmlns:baz\n" + 78 " baz:c\n" + 79 " http://bar+c=null,\n" + 80 " bar:c=null\n", 81 82 "b\n" + 83 " c\n" + 84 " bar:c\n" + 85 " http://bar+c=null,\n" + 86 " bar:c=x\n", 87 88 "bar:e\n" + 89 " baz:c\n" + 90 " bar:c\n" + 91 " http://bar+c=null,\n" + 92 " bar:c=z\n"); 93 94 boolean namespace = false; 95 boolean namespacePrefixes = true; 96 assertEquals(expected, getStartElements(xml, namespace, namespacePrefixes)); 97 } 98 99 public List<String> getStartElements(String xml, final boolean namespace, boolean namespacePrefixes) 100 throws Exception { 101 final List<String> result = new ArrayList<String>(); 102 XMLReader reader = SAXParserFactory.newInstance().newSAXParser().getXMLReader(); 103 reader.setFeature(SAX_PROPERTY_NS, namespace); 104 reader.setFeature(SAX_PROPERTY_NS_PREFIXES, namespacePrefixes); 105 reader.setContentHandler(new DefaultHandler() { 106 @Override public final void startElement( 107 String uri, String localName, String qName, Attributes attributes) { 108 StringBuilder serialized = new StringBuilder(); 109 /* 110 * Only supply the uri+localName or qname depending on whether namespaces are 111 * enabled. It's an optional parameter and the RI only supplies one or the other. 112 */ 113 if (namespace) { 114 serialized.append(uri).append(","); 115 serialized.append(localName); 116 } else { 117 serialized.append(qName); 118 } 119 for (int i = 0; i < attributes.getLength(); i++) { 120 serialized.append("\n "); 121 if (namespace) { 122 serialized.append(attributes.getURI(i)).append(","); 123 serialized.append(attributes.getLocalName(i)); 124 } else { 125 serialized.append(attributes.getQName(i)); 126 } 127 } 128 serialized.append("\n http://bar+c=") 129 .append(attributes.getValue("http://bar", "c")).append(",") 130 .append("\n bar:c=") 131 .append(attributes.getValue("bar:c")) 132 .append("\n"); 133 result.add(serialized.toString()); 134 } 135 }); 136 reader.parse(new InputSource(new StringReader(xml))); 137 return result; 138 } 139 } 140
