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1   package org.apache.archiva.checksum;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *   http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import java.io.ByteArrayInputStream;
23  import java.io.IOException;
24  import java.util.ArrayList;
25  import java.util.List;
26  
27  /**
28   * ChecksumTest
29   *
30   * @version $Id: ChecksumTest.java 718864 2008-11-19 06:33:35Z brett $
31   */
32  public class ChecksumTest
33      extends AbstractChecksumTestCase
34  {
35      private static final String UNSET_SHA1 = "da39a3ee5e6b4b0d3255bfef95601890afd80709";
36  
37      public void testConstructSha1()
38      {
39          Checksum checksum = new Checksum( ChecksumAlgorithm.SHA1 );
40          assertEquals( "Checksum.algorithm", checksum.getAlgorithm().getAlgorithm(), ChecksumAlgorithm.SHA1
41              .getAlgorithm() );
42      }
43  
44      public void testConstructMd5()
45      {
46          Checksum checksum = new Checksum( ChecksumAlgorithm.MD5 );
47          assertEquals( "Checksum.algorithm", checksum.getAlgorithm().getAlgorithm(), ChecksumAlgorithm.MD5
48              .getAlgorithm() );
49      }
50  
51      public void testUpdate()
52      {
53          Checksum checksum = new Checksum( ChecksumAlgorithm.SHA1 );
54          byte buf[] = ( "You know, I'm sick of following my dreams, man. "
55              + "I'm just going to ask where they're going and hook up with 'em later. - Mitch Hedberg" ).getBytes();
56          checksum.update( buf, 0, buf.length );
57          assertEquals( "Checksum", "e396119ae0542e85a74759602fd2f81e5d36d762", checksum.getChecksum() );
58      }
59  
60      public void testUpdateMany()
61          throws IOException
62      {
63          Checksum checksumSha1 = new Checksum( ChecksumAlgorithm.SHA1 );
64          Checksum checksumMd5 = new Checksum( ChecksumAlgorithm.MD5 );
65          List<Checksum> checksums = new ArrayList<Checksum>();
66          checksums.add( checksumSha1 );
67          checksums.add( checksumMd5 );
68  
69          byte buf[] = ( "You know, I'm sick of following my dreams, man. "
70              + "I'm just going to ask where they're going and hook up with 'em later. - Mitch Hedberg" ).getBytes();
71  
72          ByteArrayInputStream stream = new ByteArrayInputStream( buf );
73          Checksum.update( checksums, stream );
74  
75          assertEquals( "Checksum SHA1", "e396119ae0542e85a74759602fd2f81e5d36d762", checksumSha1.getChecksum() );
76          assertEquals( "Checksum MD5", "21c2c5ca87ec018adacb2e2fb3432219", checksumMd5.getChecksum() );
77      }
78  
79      public void testUpdateWholeUpdatePartial()
80      {
81          Checksum checksum = new Checksum( ChecksumAlgorithm.SHA1 );
82          assertEquals( "Checksum unset", UNSET_SHA1, checksum.getChecksum() );
83  
84          String expected = "066c2cbbc8cdaecb8ff97dcb84502462d6f575f3";
85          byte reesepieces[] = "eatagramovabits".getBytes();
86          checksum.update( reesepieces, 0, reesepieces.length );
87          String actual = checksum.getChecksum();
88  
89          assertEquals( "Expected", expected, actual );
90  
91          // Reset the checksum.
92          checksum.reset();
93          assertEquals( "Checksum unset", UNSET_SHA1, checksum.getChecksum() );
94  
95          // Now parse it again in 3 pieces.
96          checksum.update( reesepieces, 0, 5 );
97          checksum.update( reesepieces, 5, 5 );
98          checksum.update( reesepieces, 10, reesepieces.length - 10 );
99  
100         assertEquals( "Expected", expected, actual );
101     }
102 }