001package org.apache.maven.artifact.versioning;
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 java.util.Locale;
023
024import junit.framework.TestCase;
025
026/**
027 * Test ComparableVersion.
028 *
029 * @author <a href="mailto:hboutemy@apache.org">Hervé Boutemy</a>
030 */
031@SuppressWarnings( "unchecked" )
032public class ComparableVersionTest
033    extends TestCase
034{
035    private Comparable newComparable( String version )
036    {
037        return new ComparableVersion( version );
038    }
039
040    private static final String[] VERSIONS_QUALIFIER =
041        { "1-alpha2snapshot", "1-alpha2", "1-alpha-123", "1-beta-2", "1-beta123", "1-m2", "1-m11", "1-rc", "1-cr2",
042            "1-rc123", "1-SNAPSHOT", "1", "1-sp", "1-sp2", "1-sp123", "1-abc", "1-def", "1-pom-1", "1-1-snapshot",
043            "1-1", "1-2", "1-123" };
044
045    private static final String[] VERSIONS_NUMBER =
046        { "2.0", "2-1", "2.0.a", "2.0.0.a", "2.0.2", "2.0.123", "2.1.0", "2.1-a", "2.1b", "2.1-c", "2.1-1", "2.1.0.1",
047            "2.2", "2.123", "11.a2", "11.a11", "11.b2", "11.b11", "11.m2", "11.m11", "11", "11.a", "11b", "11c", "11m" };
048
049    private void checkVersionsOrder( String[] versions )
050    {
051        Comparable[] c = new Comparable[versions.length];
052        for ( int i = 0; i < versions.length; i++ )
053        {
054            c[i] = newComparable( versions[i] );
055        }
056
057        for ( int i = 1; i < versions.length; i++ )
058        {
059            Comparable low = c[i - 1];
060            for ( int j = i; j < versions.length; j++ )
061            {
062                Comparable high = c[j];
063                assertTrue( "expected " + low + " < " + high, low.compareTo( high ) < 0 );
064                assertTrue( "expected " + high + " > " + low, high.compareTo( low ) > 0 );
065            }
066        }
067    }
068
069    private void checkVersionsEqual( String v1, String v2 )
070    {
071        Comparable c1 = newComparable( v1 );
072        Comparable c2 = newComparable( v2 );
073        assertTrue( "expected " + v1 + " == " + v2, c1.compareTo( c2 ) == 0 );
074        assertTrue( "expected " + v2 + " == " + v1, c2.compareTo( c1 ) == 0 );
075        assertTrue( "expected same hashcode for " + v1 + " and " + v2, c1.hashCode() == c2.hashCode() );
076        assertTrue( "expected " + v1 + ".equals( " + v2 + " )", c1.equals( c2 ) );
077        assertTrue( "expected " + v2 + ".equals( " + v1 + " )", c2.equals( c1 ) );
078    }
079
080    private void checkVersionsOrder( String v1, String v2 )
081    {
082        Comparable c1 = newComparable( v1 );
083        Comparable c2 = newComparable( v2 );
084        assertTrue( "expected " + v1 + " < " + v2, c1.compareTo( c2 ) < 0 );
085        assertTrue( "expected " + v2 + " > " + v1, c2.compareTo( c1 ) > 0 );
086    }
087
088    public void testVersionsQualifier()
089    {
090        checkVersionsOrder( VERSIONS_QUALIFIER );
091    }
092
093    public void testVersionsNumber()
094    {
095        checkVersionsOrder( VERSIONS_NUMBER );
096    }
097
098    public void testVersionsEqual()
099    {
100        checkVersionsEqual( "1", "1" );
101        checkVersionsEqual( "1", "1.0" );
102        checkVersionsEqual( "1", "1.0.0" );
103        checkVersionsEqual( "1.0", "1.0.0" );
104        checkVersionsEqual( "1", "1-0" );
105        checkVersionsEqual( "1", "1.0-0" );
106        checkVersionsEqual( "1.0", "1.0-0" );
107        // no separator between number and character
108        checkVersionsEqual( "1a", "1.a" );
109        checkVersionsEqual( "1a", "1-a" );
110        checkVersionsEqual( "1a", "1.0-a" );
111        checkVersionsEqual( "1a", "1.0.0-a" );
112        checkVersionsEqual( "1.0a", "1.0.a" );
113        checkVersionsEqual( "1.0.0a", "1.0.0.a" );
114        checkVersionsEqual( "1x", "1.x" );
115        checkVersionsEqual( "1x", "1-x" );
116        checkVersionsEqual( "1x", "1.0-x" );
117        checkVersionsEqual( "1x", "1.0.0-x" );
118        checkVersionsEqual( "1.0x", "1.0.x" );
119        checkVersionsEqual( "1.0.0x", "1.0.0.x" );
120
121        // aliases
122        checkVersionsEqual( "1ga", "1" );
123        checkVersionsEqual( "1final", "1" );
124        checkVersionsEqual( "1cr", "1rc" );
125
126        // special "aliases" a, b and m for alpha, beta and milestone
127        checkVersionsEqual( "1a1", "1alpha1" );
128        checkVersionsEqual( "1b2", "1beta2" );
129        checkVersionsEqual( "1m3", "1milestone3" );
130
131        // case insensitive
132        checkVersionsEqual( "1X", "1x" );
133        checkVersionsEqual( "1A", "1a" );
134        checkVersionsEqual( "1B", "1b" );
135        checkVersionsEqual( "1M", "1m" );
136        checkVersionsEqual( "1Ga", "1" );
137        checkVersionsEqual( "1GA", "1" );
138        checkVersionsEqual( "1Final", "1" );
139        checkVersionsEqual( "1FinaL", "1" );
140        checkVersionsEqual( "1FINAL", "1" );
141        checkVersionsEqual( "1Cr", "1Rc" );
142        checkVersionsEqual( "1cR", "1rC" );
143        checkVersionsEqual( "1m3", "1Milestone3" );
144        checkVersionsEqual( "1m3", "1MileStone3" );
145        checkVersionsEqual( "1m3", "1MILESTONE3" );
146    }
147
148    public void testVersionComparing()
149    {
150        checkVersionsOrder( "1", "2" );
151        checkVersionsOrder( "1.5", "2" );
152        checkVersionsOrder( "1", "2.5" );
153        checkVersionsOrder( "1.0", "1.1" );
154        checkVersionsOrder( "1.1", "1.2" );
155        checkVersionsOrder( "1.0.0", "1.1" );
156        checkVersionsOrder( "1.0.1", "1.1" );
157        checkVersionsOrder( "1.1", "1.2.0" );
158
159        checkVersionsOrder( "1.0-alpha-1", "1.0" );
160        checkVersionsOrder( "1.0-alpha-1", "1.0-alpha-2" );
161        checkVersionsOrder( "1.0-alpha-1", "1.0-beta-1" );
162
163        checkVersionsOrder( "1.0-beta-1", "1.0-SNAPSHOT" );
164        checkVersionsOrder( "1.0-SNAPSHOT", "1.0" );
165        checkVersionsOrder( "1.0-alpha-1-SNAPSHOT", "1.0-alpha-1" );
166
167        checkVersionsOrder( "1.0", "1.0-1" );
168        checkVersionsOrder( "1.0-1", "1.0-2" );
169        checkVersionsOrder( "1.0.0", "1.0-1" );
170
171        checkVersionsOrder( "2.0-1", "2.0.1" );
172        checkVersionsOrder( "2.0.1-klm", "2.0.1-lmn" );
173        checkVersionsOrder( "2.0.1", "2.0.1-xyz" );
174
175        checkVersionsOrder( "2.0.1", "2.0.1-123" );
176        checkVersionsOrder( "2.0.1-xyz", "2.0.1-123" );
177    }
178
179    public void testLocaleIndependent()
180    {
181        Locale orig = Locale.getDefault();
182        Locale[] locales = { Locale.ENGLISH, new Locale( "tr" ), Locale.getDefault() };
183        try
184        {
185            for ( Locale locale : locales )
186            {
187                Locale.setDefault( locale );
188                checkVersionsEqual( "1-abcdefghijklmnopqrstuvwxyz", "1-ABCDEFGHIJKLMNOPQRSTUVWXYZ" );
189            }
190        }
191        finally
192        {
193            Locale.setDefault( orig );
194        }
195    }
196
197    public void testReuse()
198    {
199        ComparableVersion c1 = new ComparableVersion( "1" );
200        c1.parseVersion( "2" );
201
202        Comparable c2 = newComparable( "2" );
203
204        assertEquals( "reused instance should be equivalent to new instance", c1, c2 );
205    }
206}