001package org.eclipse.aether.connector.basic;
002
003/*
004 * Licensed to the Apache Software Foundation (ASF) under one
005 * or more contributor license agreements.  See the NOTICE file
006 * distributed with this work for additional information
007 * regarding copyright ownership.  The ASF licenses this file
008 * to you under the Apache License, Version 2.0 (the
009 * "License"); you may not use this file except in compliance
010 * with the License.  You may obtain a copy of the License at
011 * 
012 *  http://www.apache.org/licenses/LICENSE-2.0
013 * 
014 * Unless required by applicable law or agreed to in writing,
015 * software distributed under the License is distributed on an
016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017 * KIND, either express or implied.  See the License for the
018 * specific language governing permissions and limitations
019 * under the License.
020 */
021
022import static org.junit.Assert.*;
023
024import java.io.File;
025import java.io.IOException;
026import java.net.URI;
027import java.nio.ByteBuffer;
028import java.nio.charset.StandardCharsets;
029import java.security.NoSuchAlgorithmException;
030import java.util.ArrayList;
031import java.util.List;
032import java.util.Map;
033
034import org.eclipse.aether.internal.test.util.TestFileUtils;
035import org.eclipse.aether.spi.connector.layout.RepositoryLayout;
036import org.junit.Before;
037import org.junit.Test;
038
039public class ChecksumCalculatorTest
040{
041
042    private static final String SHA1 = "SHA-1";
043
044    private static final String MD5 = "MD5";
045
046    private File file;
047
048    private ChecksumCalculator newCalculator( String... algos )
049    {
050        List<RepositoryLayout.Checksum> checksums = new ArrayList<RepositoryLayout.Checksum>();
051        for ( String algo : algos )
052        {
053            checksums.add( new RepositoryLayout.Checksum( algo, URI.create( "irrelevant" ) ) );
054        }
055        return ChecksumCalculator.newInstance( file, checksums );
056    }
057
058    private ByteBuffer toBuffer( String data )
059    {
060        return ByteBuffer.wrap( data.getBytes( StandardCharsets.UTF_8 ) );
061    }
062
063    @Before
064    public void init()
065        throws Exception
066    {
067        file = TestFileUtils.createTempFile( "Hello World!" );
068    }
069
070    @Test
071    public void testNoOffset()
072    {
073        ChecksumCalculator calculator = newCalculator( SHA1, MD5 );
074        calculator.init( 0 );
075        calculator.update( toBuffer( "Hello World!" ) );
076        Map<String, Object> digests = calculator.get();
077        assertNotNull( digests );
078        assertEquals( "2ef7bde608ce5404e97d5f042f95f89f1c232871", digests.get( SHA1 ) );
079        assertEquals( "ed076287532e86365e841e92bfc50d8c", digests.get( MD5 ) );
080        assertEquals( 2, digests.size() );
081    }
082
083    @Test
084    public void testWithOffset()
085    {
086        ChecksumCalculator calculator = newCalculator( SHA1, MD5 );
087        calculator.init( 6 );
088        calculator.update( toBuffer( "World!" ) );
089        Map<String, Object> digests = calculator.get();
090        assertNotNull( digests );
091        assertEquals( "2ef7bde608ce5404e97d5f042f95f89f1c232871", digests.get( SHA1 ) );
092        assertEquals( "ed076287532e86365e841e92bfc50d8c", digests.get( MD5 ) );
093        assertEquals( 2, digests.size() );
094    }
095
096    @Test
097    public void testWithExcessiveOffset()
098    {
099        ChecksumCalculator calculator = newCalculator( SHA1, MD5 );
100        calculator.init( 100 );
101        calculator.update( toBuffer( "World!" ) );
102        Map<String, Object> digests = calculator.get();
103        assertNotNull( digests );
104        assertTrue( digests.get( SHA1 ) instanceof IOException );
105        assertTrue( digests.get( MD5 ) instanceof IOException );
106        assertEquals( 2, digests.size() );
107    }
108
109    @Test
110    public void testUnknownAlgorithm()
111    {
112        ChecksumCalculator calculator = newCalculator( "unknown", SHA1 );
113        calculator.init( 0 );
114        calculator.update( toBuffer( "Hello World!" ) );
115        Map<String, Object> digests = calculator.get();
116        assertNotNull( digests );
117        assertEquals( "2ef7bde608ce5404e97d5f042f95f89f1c232871", digests.get( SHA1 ) );
118        assertTrue( digests.get( "unknown" ) instanceof NoSuchAlgorithmException );
119        assertEquals( 2, digests.size() );
120    }
121
122    @Test
123    public void testNoInitCall()
124    {
125        ChecksumCalculator calculator = newCalculator( SHA1, MD5 );
126        calculator.update( toBuffer( "Hello World!" ) );
127        Map<String, Object> digests = calculator.get();
128        assertNotNull( digests );
129        assertEquals( "2ef7bde608ce5404e97d5f042f95f89f1c232871", digests.get( SHA1 ) );
130        assertEquals( "ed076287532e86365e841e92bfc50d8c", digests.get( MD5 ) );
131        assertEquals( 2, digests.size() );
132    }
133
134    @Test
135    public void testRestart()
136    {
137        ChecksumCalculator calculator = newCalculator( SHA1, MD5 );
138        calculator.init( 0 );
139        calculator.update( toBuffer( "Ignored" ) );
140        calculator.init( 0 );
141        calculator.update( toBuffer( "Hello World!" ) );
142        Map<String, Object> digests = calculator.get();
143        assertNotNull( digests );
144        assertEquals( "2ef7bde608ce5404e97d5f042f95f89f1c232871", digests.get( SHA1 ) );
145        assertEquals( "ed076287532e86365e841e92bfc50d8c", digests.get( MD5 ) );
146        assertEquals( 2, digests.size() );
147    }
148
149    @Test
150    public void testRestartAfterError()
151    {
152        ChecksumCalculator calculator = newCalculator( SHA1, MD5 );
153        calculator.init( 100 );
154        calculator.init( 0 );
155        calculator.update( toBuffer( "Hello World!" ) );
156        Map<String, Object> digests = calculator.get();
157        assertNotNull( digests );
158        assertEquals( "2ef7bde608ce5404e97d5f042f95f89f1c232871", digests.get( SHA1 ) );
159        assertEquals( "ed076287532e86365e841e92bfc50d8c", digests.get( MD5 ) );
160        assertEquals( 2, digests.size() );
161    }
162
163}