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Java > Open Source Codes > org > apache > tools > zip > ZipShortTest


1 /*
2  * Copyright 2001,2004 The Apache Software Foundation
3  *
4  * Licensed under the Apache 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.apache.org/licenses/LICENSE-2.0
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  */
17
18 package org.apache.tools.zip;
19
20 import junit.framework.TestCase;
21
22 /**
23  * JUnit 3 testcases for org.apache.tools.zip.ZipShort.
24  *
25  */
26 public class ZipShortTest extends TestCase {
27
28     public ZipShortTest(String JavaDoc name) {
29         super(name);
30     }
31
32     /**
33      * Test conversion to bytes.
34      */
35     public void testToBytes() {
36         ZipShort zs = new ZipShort(0x1234);
37         byte[] result = zs.getBytes();
38         assertEquals("length getBytes", 2, result.length);
39         assertEquals("first byte getBytes", 0x34, result[0]);
40         assertEquals("second byte getBytes", 0x12, result[1]);
41     }
42
43     /**
44      * Test conversion from bytes.
45      */
46     public void testFromBytes() {
47         byte[] val = new byte[] {0x34, 0x12};
48         ZipShort zs = new ZipShort(val);
49         assertEquals("value from bytes", 0x1234, zs.getValue());
50     }
51
52     /**
53      * Test the contract of the equals method.
54      */
55     public void testEquals() {
56         ZipShort zs = new ZipShort(0x1234);
57         ZipShort zs2 = new ZipShort(0x1234);
58         ZipShort zs3 = new ZipShort(0x5678);
59
60         assertTrue("reflexive", zs.equals(zs));
61
62         assertTrue("works", zs.equals(zs2));
63         assertTrue("works, part two", !zs.equals(zs3));
64
65         assertTrue("symmetric", zs2.equals(zs));
66
67         assertTrue("null handling", !zs.equals(null));
68         assertTrue("non ZipShort handling", !zs.equals(new Integer JavaDoc(0x1234)));
69     }
70
71     /**
72      * Test sign handling.
73      */
74     public void testSign() {
75         ZipShort zs = new ZipShort(new byte[] {(byte)0xFF, (byte)0xFF});
76         assertEquals(0x0000FFFF, zs.getValue());
77     }
78
79 }
80
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