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.beanutils.bugs;
18
19 import java.beans.PropertyDescriptor;
20
21 import junit.framework.TestCase;
22
23 import org.apache.commons.beanutils.FluentIntrospectionTestBean;
24 import org.apache.commons.beanutils.FluentPropertyBeanIntrospector;
25 import org.apache.commons.beanutils.PropertyUtilsBean;
26
27 /**
28 * Write methods for PropertyDescriptors created during custom introspection are lost. See
29 * <a href="https://issues.apache.org/jira/browse/BEANUTILS-456">JIRA issue
30 * BEANUTILS-456</a>.
31 *
32 * @version $Id: Jira456TestCase.html 1048600 2019-08-14 01:36:40Z chtompki $
33 */
34 public class Jira456TestCase extends TestCase {
35 /** Constant for the name of the test property. */
36 private static final String TEST_PROP = "fluentGetProperty";
37
38 /** The PropertyUtilsBean used by the tests. */
39 private PropertyUtilsBean pub;
40
41 @Override
42 protected void setUp() throws Exception {
43 super.setUp();
44 pub = new PropertyUtilsBean();
45 pub.addBeanIntrospector(new FluentPropertyBeanIntrospector());
46 }
47
48 /**
49 * Clears the reference to the write method in the property descriptor of the test
50 * property. This simulates that the write method reference is freed by the GC.
51 *
52 * @return the bean instance used for testing
53 * @throws Exception if an error occurs
54 */
55 private FluentIntrospectionTestBean clearWriteMethodRef() throws Exception {
56 final FluentIntrospectionTestBean bean = new FluentIntrospectionTestBean();
57 final PropertyDescriptor pd = pub.getPropertyDescriptor(bean, TEST_PROP);
58
59 // simulate that the write method reference is freed
60 pd.setWriteMethod(null);
61 return bean;
62 }
63
64 /**
65 * Tests whether a lost write method is automatically recovered and can be invoked.
66 */
67 public void testWriteMethodRecover() throws Exception {
68 final FluentIntrospectionTestBean bean = clearWriteMethodRef();
69 final String value = "Test value";
70 pub.setProperty(bean, TEST_PROP, value);
71 assertEquals("Property not set", value, bean.getFluentGetProperty());
72 }
73
74 /**
75 * Tests whether a property is recognized as writable even if the reference to its
76 * write method was freed.
77 */
78 public void testPropertyIsWritable() throws Exception {
79 final FluentIntrospectionTestBean bean = clearWriteMethodRef();
80 assertTrue("Not writable", pub.isWriteable(bean, TEST_PROP));
81 }
82 }