1 package org.apache.commons.beanutils2;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one or more
5 * contributor license agreements. See the NOTICE file distributed with
6 * this work for additional information regarding copyright ownership.
7 * The ASF licenses this file to You under the Apache License, Version 2.0
8 * (the "License"); you may not use this file except in compliance with
9 * the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 */
19
20 import static org.apache.commons.beanutils2.BeanUtils.on;
21 import static org.junit.Assert.assertNotNull;
22 import static org.junit.Assert.assertSame;
23
24 import org.junit.Before;
25 import org.junit.Test;
26
27 public class CastTestCase
28 {
29
30 private SuperClass superObj;
31
32 private SubClass subObj;
33
34 @Before
35 public void setUp()
36 {
37 superObj = new SuperClass();
38 subObj = new SubClass();
39 }
40
41 @Test
42 public void castSameClass()
43 {
44 SuperClass casted = on( superObj ).cast();
45 assertNotNull( casted );
46 assertSame( superObj, casted );
47 }
48
49 @Test
50 public void castCompatible()
51 {
52 SuperClass casted = on( subObj ).cast();
53 assertNotNull( casted );
54 assertSame( subObj, casted );
55 }
56
57 @Test( expected = ClassCastException.class )
58 public void castIncompatible()
59 {
60 @SuppressWarnings( "unused" ) // need to assign to casted to force exception
61 SubClass casted = on( superObj ).cast();
62 }
63
64 private static class SuperClass
65 {
66
67 }
68
69 private static class SubClass
70 extends SuperClass
71 {
72
73 }
74
75 }