1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    * 
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   * 
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */ 
17  package org.apache.commons.betwixt.io;
18  
19  import java.io.StringWriter;
20  
21  import org.apache.commons.betwixt.AbstractTestCase;
22  import org.apache.commons.betwixt.AttributeDescriptor;
23  import org.apache.commons.betwixt.strategy.ValueSuppressionStrategy;
24  
25  /**
26   * @author <a href='http://commons.apache.org'>Apache Commons Team</a>, <a href='http://www.apache.org'>Apache Software Foundation</a>
27   */
28  public class TestAttributeSuppression extends AbstractTestCase {
29  
30      public TestAttributeSuppression(String testName) {
31          super(testName);
32      }
33  
34      
35      public void testEmptyStringSuppression() throws Exception {
36          PersonBean bean = new PersonBean("Corwin", null);
37          
38          StringWriter out = new StringWriter();
39          out.write("<?xml version='1.0'?>");
40          
41          BeanWriter writer = new BeanWriter(out);
42          writer.getBindingConfiguration().setMapIDs(false);
43          writer.getXMLIntrospector().getConfiguration().setAttributesForPrimitives(true);
44          
45          writer.write(bean);
46          
47          String expected = "<?xml version='1.0'?><PersonBean forenames='Corwin'/>";
48          
49          xmlAssertIsomorphicContent(parseString(expected), parseString(out));
50      }
51      
52      public void testCustomStrategy() throws Exception {
53          PersonBean bean = new PersonBean("Zaphod", "Beeblebrox");
54          
55          StringWriter out = new StringWriter();
56          out.write("<?xml version='1.0'?>");
57          
58          BeanWriter writer = new BeanWriter(out);
59          writer.getBindingConfiguration().setMapIDs(false);
60          writer.getXMLIntrospector().getConfiguration().setAttributesForPrimitives(true);
61          writer.getBindingConfiguration().setValueSuppressionStrategy(new ValueSuppressionStrategy() {
62  
63              public boolean suppressAttribute(AttributeDescriptor attributeDescriptor, String value) {
64                  return "Zaphod".equals(value);
65              }            
66          });
67          writer.write(bean);
68          
69          String expected = "<?xml version='1.0'?><PersonBean surname='Beeblebrox'/>";
70          
71          xmlAssertIsomorphicContent(parseString(expected), parseString(out));
72      }
73  }