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.io.UnsupportedEncodingException;
027import java.net.URI;
028import java.nio.ByteBuffer;
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        try
061        {
062            return ByteBuffer.wrap( data.getBytes( "UTF-8" ) );
063        }
064        catch ( UnsupportedEncodingException e )
065        {
066            throw new IllegalStateException( e );
067        }
068    }
069
070    @Before
071    public void init()
072        throws Exception
073    {
074        file = TestFileUtils.createTempFile( "Hello World!" );
075    }
076
077    @Test
078    public void testNoOffset()
079    {
080        ChecksumCalculator calculator = newCalculator( SHA1, MD5 );
081        calculator.init( 0 );
082        calculator.update( toBuffer( "Hello World!" ) );
083        Map<String, Object> digests = calculator.get();
084        assertNotNull( digests );
085        assertEquals( "2ef7bde608ce5404e97d5f042f95f89f1c232871", digests.get( SHA1 ) );
086        assertEquals( "ed076287532e86365e841e92bfc50d8c", digests.get( MD5 ) );
087        assertEquals( 2, digests.size() );
088    }
089
090    @Test
091    public void testWithOffset()
092    {
093        ChecksumCalculator calculator = newCalculator( SHA1, MD5 );
094        calculator.init( 6 );
095        calculator.update( toBuffer( "World!" ) );
096        Map<String, Object> digests = calculator.get();
097        assertNotNull( digests );
098        assertEquals( "2ef7bde608ce5404e97d5f042f95f89f1c232871", digests.get( SHA1 ) );
099        assertEquals( "ed076287532e86365e841e92bfc50d8c", digests.get( MD5 ) );
100        assertEquals( 2, digests.size() );
101    }
102
103    @Test
104    public void testWithExcessiveOffset()
105    {
106        ChecksumCalculator calculator = newCalculator( SHA1, MD5 );
107        calculator.init( 100 );
108        calculator.update( toBuffer( "World!" ) );
109        Map<String, Object> digests = calculator.get();
110        assertNotNull( digests );
111        assertTrue( digests.get( SHA1 ) instanceof IOException );
112        assertTrue( digests.get( MD5 ) instanceof IOException );
113        assertEquals( 2, digests.size() );
114    }
115
116    @Test
117    public void testUnknownAlgorithm()
118    {
119        ChecksumCalculator calculator = newCalculator( "unknown", SHA1 );
120        calculator.init( 0 );
121        calculator.update( toBuffer( "Hello World!" ) );
122        Map<String, Object> digests = calculator.get();
123        assertNotNull( digests );
124        assertEquals( "2ef7bde608ce5404e97d5f042f95f89f1c232871", digests.get( SHA1 ) );
125        assertTrue( digests.get( "unknown" ) instanceof NoSuchAlgorithmException );
126        assertEquals( 2, digests.size() );
127    }
128
129    @Test
130    public void testNoInitCall()
131    {
132        ChecksumCalculator calculator = newCalculator( SHA1, MD5 );
133        calculator.update( toBuffer( "Hello World!" ) );
134        Map<String, Object> digests = calculator.get();
135        assertNotNull( digests );
136        assertEquals( "2ef7bde608ce5404e97d5f042f95f89f1c232871", digests.get( SHA1 ) );
137        assertEquals( "ed076287532e86365e841e92bfc50d8c", digests.get( MD5 ) );
138        assertEquals( 2, digests.size() );
139    }
140
141    @Test
142    public void testRestart()
143    {
144        ChecksumCalculator calculator = newCalculator( SHA1, MD5 );
145        calculator.init( 0 );
146        calculator.update( toBuffer( "Ignored" ) );
147        calculator.init( 0 );
148        calculator.update( toBuffer( "Hello World!" ) );
149        Map<String, Object> digests = calculator.get();
150        assertNotNull( digests );
151        assertEquals( "2ef7bde608ce5404e97d5f042f95f89f1c232871", digests.get( SHA1 ) );
152        assertEquals( "ed076287532e86365e841e92bfc50d8c", digests.get( MD5 ) );
153        assertEquals( 2, digests.size() );
154    }
155
156    @Test
157    public void testRestartAfterError()
158    {
159        ChecksumCalculator calculator = newCalculator( SHA1, MD5 );
160        calculator.init( 100 );
161        calculator.init( 0 );
162        calculator.update( toBuffer( "Hello World!" ) );
163        Map<String, Object> digests = calculator.get();
164        assertNotNull( digests );
165        assertEquals( "2ef7bde608ce5404e97d5f042f95f89f1c232871", digests.get( SHA1 ) );
166        assertEquals( "ed076287532e86365e841e92bfc50d8c", digests.get( MD5 ) );
167        assertEquals( 2, digests.size() );
168    }
169
170}