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1
5
6 package org.springframework.util;
7
8 import java.awt.Point  ;
9 import java.io.ByteArrayInputStream ;
10 import java.io.ByteArrayOutputStream ;
11 import java.io.IOException ;
12 import java.io.NotSerializableException ;
13 import java.io.ObjectInputStream ;
14 import java.io.ObjectOutputStream ;
15 import java.io.OutputStream ;
16 import java.io.Serializable ;
17
18 import junit.framework.TestCase;
19
20 import org.springframework.beans.TestBean;
21
22
29 public class SerializationTestUtils extends TestCase {
30
31 public static void testSerialization(Object o) throws IOException {
32 OutputStream baos = new ByteArrayOutputStream ();
33 ObjectOutputStream oos = new ObjectOutputStream (baos);
34 oos.writeObject(o);
35 }
36
37 public static boolean isSerializable(Object o) throws IOException {
38 try {
39 testSerialization(o);
40 return true;
41 }
42 catch (NotSerializableException ex) {
43 return false;
44 }
45 }
46
47 public static Object serializeAndDeserialize(Object o) throws IOException , ClassNotFoundException {
48 ByteArrayOutputStream baos = new ByteArrayOutputStream ();
49 ObjectOutputStream oos = new ObjectOutputStream (baos);
50 oos.writeObject(o);
51 oos.flush();
52 baos.flush();
53 byte[] bytes = baos.toByteArray();
54
55 ByteArrayInputStream is = new ByteArrayInputStream (bytes);
56 ObjectInputStream ois = new ObjectInputStream (is);
57 Object o2 = ois.readObject();
58
59 return o2;
60 }
61
62 public SerializationTestUtils(String s) {
63 super(s);
64 }
65
66 public void testWithNonSerializableObject() throws IOException {
67 TestBean o = new TestBean();
68 assertFalse(o instanceof Serializable );
69
70 assertFalse(isSerializable(o));
71
72 try {
73 testSerialization(o);
74 fail();
75 }
76 catch (NotSerializableException ex) {
77 }
79 }
80
81 public void testWithSerializableObject() throws Exception {
82 int x = 5;
83 int y = 10;
84 Point p = new Point (x, y);
85 assertTrue(p instanceof Serializable );
86
87 testSerialization(p);
88
89 assertTrue(isSerializable(p));
90
91 Point p2 = (Point ) serializeAndDeserialize(p);
92 assertNotSame(p, p2);
93 assertEquals(x, (int) p2.getX());
94 assertEquals(y, (int) p2.getY());
95 }
96
97 }
98 |
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