1 /*
2 * $Header: /home/cvs/jakarta-commons-sandbox/betwixt/src/test/org/apache/commons/betwixt/TestRSSRoundTrip.java,v 1.5 2002/05/28 11:49:29 jstrachan Exp $
3 * $Revision: 1.5 $
4 * $Date: 2002/05/28 11:49:29 $
5 *
6 * ====================================================================
7 *
8 * The Apache Software License, Version 1.1
9 *
10 * Copyright (c) 1999-2002 The Apache Software Foundation. All rights
11 * reserved.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 *
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 *
20 * 2. Redistributions in binary form must reproduce the above copyright
21 * notice, this list of conditions and the following disclaimer in
22 * the documentation and/or other materials provided with the
23 * distribution.
24 *
25 * 3. The end-user documentation included with the redistribution, if
26 * any, must include the following acknowlegement:
27 * "This product includes software developed by the
28 * Apache Software Foundation (http://www.apache.org/)."
29 * Alternately, this acknowlegement may appear in the software itself,
30 * if and wherever such third-party acknowlegements normally appear.
31 *
32 * 4. The names "The Jakarta Project", "Commons", and "Apache Software
33 * Foundation" must not be used to endorse or promote products derived
34 * from this software without prior written permission. For written
35 * permission, please contact apache@apache.org.
36 *
37 * 5. Products derived from this software may not be called "Apache"
38 * nor may "Apache" appear in their names without prior written
39 * permission of the Apache Group.
40 *
41 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
42 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
43 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
44 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
45 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
46 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
47 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
48 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
49 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
50 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
51 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * SUCH DAMAGE.
53 * ====================================================================
54 *
55 * This software consists of voluntary contributions made by many
56 * individuals on behalf of the Apache Software Foundation. For more
57 * information on the Apache Software Foundation, please see
58 * <http://www.apache.org/>.
59 *
60 * $Id: TestRSSRoundTrip.java,v 1.5 2002/05/28 11:49:29 jstrachan Exp $
61 */
62 package org.apache.commons.betwixt;
63
64 import java.io.FileInputStream;
65 import java.io.InputStream;
66 import java.io.StringReader;
67 import java.io.StringWriter;
68 import java.io.Writer;
69 import java.net.URL;
70
71 import junit.framework.Test;
72 import junit.framework.TestSuite;
73 import junit.textui.TestRunner;
74
75 import org.apache.commons.betwixt.io.BeanReader;
76 import org.apache.commons.betwixt.io.BeanWriter;
77 import org.apache.commons.digester.rss.Channel;
78 import org.apache.commons.digester.rss.RSSDigester;
79
80
81 /*** Test harness which parses an RSS document using Digester
82 * then outputs it using Betwixt, then parses it again with Digester
83 * to check that the document is parseable again.
84 *
85 * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
86 * @version $Revision: 1.5 $
87 */
88 public class TestRSSRoundTrip extends AbstractTestCase {
89
90 /***
91 * The set of public identifiers, and corresponding resource names,
92 * for the versions of the DTDs that we know about.
93 */
94 protected static final String registrations[] = {
95 "-//Netscape Communications//DTD RSS 0.9//EN",
96 "/org/apache/commons/digester/rss/rss-0.9.dtd",
97 "-//Netscape Communications//DTD RSS 0.91//EN",
98 "/org/apache/commons/digester/rss/rss-0.91.dtd",
99 };
100
101 public static void main( String[] args ) {
102 TestRunner.run( suite() );
103 }
104
105 public static Test suite() {
106 return new TestSuite(TestRSSRoundTrip.class);
107 }
108
109 public TestRSSRoundTrip(String testName) {
110 super(testName);
111 }
112
113
114
115 public void testRoundTrip() throws Exception {
116 // lets parse the example
117 RSSDigester digester = new RSSDigester();
118
119 InputStream in = new FileInputStream( getTestFile("src/test/org/apache/commons/betwixt/rss-example.xml") );
120 Object bean = digester.parse( in );
121 in.close();
122
123 // now lets output it to a buffer
124 StringWriter buffer = new StringWriter();
125 write( bean, buffer );
126
127 // now lets try parse again
128 String text = buffer.toString();
129 bean = digester.parse( new StringReader( text ) );
130
131 // managed to parse it again!
132
133 // now lets write it to another buffer
134 buffer = new StringWriter();
135 write( bean, buffer );
136
137 String text2 = buffer.toString();
138
139 // if the two strings are equal then we've done a full round trip
140 // with the XML staying the same. Though the original source XML
141 // could well be different
142 assertEquals( "Round trip value should remain unchanged", text, text2 );
143 }
144
145 /***
146 * This tests using the both the RSSDigester
147 * and the BeanReader to parse an RSS and output it
148 * using the BeanWriter
149 */
150 public void testBeanWriterRoundTrip() throws Exception {
151 // lets parse the example using the RSSDigester
152 RSSDigester digester = new RSSDigester();
153
154 InputStream in = new FileInputStream( getTestFile("src/test/org/apache/commons/betwixt/rss-example.xml") );
155 Object bean = digester.parse( in );
156 in.close();
157
158 // now lets output it to a buffer
159 StringWriter buffer = new StringWriter();
160 write( bean, buffer );
161
162
163 // create a BeanReader
164 BeanReader reader = new BeanReader();
165 reader.registerBeanClass( Channel.class );
166
167 // Register local copies of the DTDs we understand
168 for (int i = 0; i < registrations.length; i += 2) {
169 URL url = RSSDigester.class.getResource(registrations[i + 1]);
170 if (url != null) {
171 reader.register(registrations[i], url.toString());
172 }
173 }
174
175 // now lets try parse the output sing the BeanReader
176 String text = buffer.toString();
177 bean = reader.parse( new StringReader( text ) );
178
179 // managed to parse it again!
180
181 // now lets write it to another buffer
182 buffer = new StringWriter();
183 write( bean, buffer );
184
185 String text2 = buffer.toString();
186
187 // if the two strings are equal then we've done a full round trip
188 // with the XML staying the same. Though the original source XML
189 // could well be different
190 assertEquals( "Round trip value should remain unchanged", text, text2 );
191 }
192
193 public void testRSSRead() throws Exception {
194 /*
195 this test isn't working at the moment.
196 the problem seems to be that you can't configure betwixt to ignore empty elements
197
198 // create a BeanReader
199 BeanReader reader = new BeanReader();
200 reader.registerBeanClass( Channel.class );
201
202 // Register local copies of the DTDs we understand
203 for (int i = 0; i < registrations.length; i += 2) {
204 URL url = RSSDigester.class.getResource(registrations[i + 1]);
205 if (url != null) {
206 reader.register(registrations[i], url.toString());
207 }
208 }
209
210 Object bean = reader.parse(
211 new FileInputStream( getTestFile("src/test/org/apache/commons/betwixt/rss-example.xml") ));
212
213 StringWriter out = new StringWriter();
214 out.write( "<?xml version='1.0'?>" );
215 write( bean, out );
216
217 String xml = out.toString();
218 System.out.println( xml );
219
220 xmlAssertIsomorphic(
221 parseString( xml ),
222 parseFile( "src/test/org/apache/commons/betwixt/rss-example.xml" ));
223 */
224 }
225
226 protected void write(Object bean, Writer out) throws Exception {
227 BeanWriter writer = new BeanWriter(out);
228 writer.getXMLIntrospector().setAttributesForPrimitives(false);
229 writer.setWriteIDs(false);
230 writer.enablePrettyPrint();
231 writer.write( bean );
232 }
233 }
234
This page was automatically generated by Maven