1 /**
2 * Copyright 2005-2012 The Kuali Foundation
3 *
4 * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
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 package org.kuali.rice.kns.web.struts.form.pojo;
17
18 import org.apache.commons.beanutils.NestedNullException;
19 import org.apache.commons.beanutils.PropertyUtils;
20 import org.junit.Test;
21 import org.kuali.rice.krad.bo.PersistableBusinessObjectBase;
22 import org.kuali.rice.krad.util.ObjectUtils;
23
24 import java.util.Collection;
25 import java.util.Collections;
26
27 import static org.junit.Assert.assertFalse;
28 import static org.junit.Assert.assertTrue;
29
30 public class PojoPluginTest {
31
32 /**
33 * <p>Testing scenario that was not working in the linked issue off of
34 * KULRICE-6877: KualiMaintainbleImpl#performCollectionForceUpperCase blowing up</p>
35 *
36 * @throws Exception
37 */
38 @Test
39 public void testGetChildCollectionThrowsNestedNullException() throws Exception {
40
41 // We need to initialize PropertyUtils to use our plugins
42 new PojoPlugin().init(null, null);
43
44 TestCollectionHolderHolder tchh = new TestCollectionHolderHolder();
45 tchh.setTch(new TestCollectionHolder());
46
47 // this simulates a situation in which the property (tch) is a proxied object
48 // that can't be fetched, so getting it works (returns the proxy) but trying
49 // to access the collection underneath it throws a NestedNullException
50 Object result = ObjectUtils.getPropertyValue(tchh, "tch.collection");
51
52 // before, the empty string was being returned, which doesn't make sense for a collection
53 assertFalse("".equals(result));
54
55 // now we return null
56 assertTrue(null == result);
57 }
58
59 /**
60 * <p>Testing scenario that isWriteable blows up with NestedNullException when property value is null
61 * KULRICE-6877: KualiMaintainbleImpl#performCollectionForceUpperCase blowing up</p>
62 *
63 * @throws Exception
64 */
65 @Test
66 public void testNestedNullIsWriteable() throws Exception {
67
68 // We need to initialize PropertyUtils to use our plugins
69 new PojoPlugin().init(null, null);
70
71 TestCollectionHolderHolder tchh = new TestCollectionHolderHolder();
72 assertTrue(PropertyUtils.isWriteable(tchh, "tch2.collection"));
73
74
75 }
76
77 /**
78 * Ugly name, but it holds a TestCollectionHolder
79 */
80 public static class TestCollectionHolderHolder extends PersistableBusinessObjectBase {
81 private TestCollectionHolder tch = null;
82 private TestCollectionHolder2 tch2;
83
84 public TestCollectionHolder getTch() {
85 return tch;
86 }
87
88 public void setTch(TestCollectionHolder tch) {
89 this.tch = tch;
90 }
91
92 public TestCollectionHolder2 getTch2() {
93 return tch2;
94 }
95
96 public void setTch2(TestCollectionHolder2 tch2) {
97 this.tch2 = tch2;
98 }
99 }
100
101 /**
102 * Test class that holds a collection, but trying to get it results in a
103 * NestedNullException.
104 * @throws NestedNullException
105 */
106 public static class TestCollectionHolder extends PersistableBusinessObjectBase {
107 private Collection collection = Collections.emptyList();
108
109 public Collection getCollection() {
110 throw new NestedNullException();
111 }
112
113 public void setCollection(Collection collection) {
114 this.collection = collection;
115 }
116 }
117
118 /**
119 * Test class that holds a collection, but trying to get it results in a
120 * NestedNullException.
121 * @throws NestedNullException
122 */
123 public static class TestCollectionHolder2 extends PersistableBusinessObjectBase {
124 private Collection collection = Collections.emptyList();
125
126 public Collection getCollection() {
127 return collection;
128 }
129
130 public void setCollection(Collection collection) {
131 this.collection = collection;
132 }
133 }
134
135
136 }