package org.apache.maven.artifact.versioning;
   
   /*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache License, Version 2.0 (the
    * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *  http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  
  import java.util.Locale;
  
  import junit.framework.TestCase;
  
  /**
   * Test ComparableVersion.
   *
   * @author <a href="mailto:hboutemy@apache.org">Hervé Boutemy</a>
   */
  @SuppressWarnings( "unchecked" )
  public class ComparableVersionTest
      extends TestCase
  {
      private Comparable newComparable( String version )
      {
          ComparableVersion ret = new ComparableVersion( version );
          String canonical = ret.getCanonical();
          String parsedCanonical = new ComparableVersion( canonical ).getCanonical();
  
          System.out.println( "canonical( " + version + " ) = " + canonical );
          assertEquals( "canonical( " + version + " ) = " + canonical + " -> canonical: " + parsedCanonical, canonical,
                        parsedCanonical );
  
          return ret;
      }
  
      private static final String[] VERSIONS_QUALIFIER =
          { "1-alpha2snapshot", "1-alpha2", "1-alpha-123", "1-beta-2", "1-beta123", "1-m2", "1-m11", "1-rc", "1-cr2",
              "1-rc123", "1-SNAPSHOT", "1", "1-sp", "1-sp2", "1-sp123", "1-abc", "1-def", "1-pom-1", "1-1-snapshot",
              "1-1", "1-2", "1-123" };
  
      private static final String[] VERSIONS_NUMBER =
          { "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",
              "2.2", "2.123", "11.a2", "11.a11", "11.b2", "11.b11", "11.m2", "11.m11", "11", "11.a", "11b", "11c", "11m" };
  
      private void checkVersionsOrder( String[] versions )
      {
          Comparable[] c = new Comparable[versions.length];
          for ( int i = 0; i < versions.length; i++ )
          {
              c[i] = newComparable( versions[i] );
          }
  
          for ( int i = 1; i < versions.length; i++ )
          {
              Comparable low = c[i - 1];
              for ( int j = i; j < versions.length; j++ )
              {
                  Comparable high = c[j];
                  assertTrue( "expected " + low + " < " + high, low.compareTo( high ) < 0 );
                  assertTrue( "expected " + high + " > " + low, high.compareTo( low ) > 0 );
              }
          }
      }
  
      private void checkVersionsEqual( String v1, String v2 )
      {
          Comparable c1 = newComparable( v1 );
          Comparable c2 = newComparable( v2 );
          assertTrue( "expected " + v1 + " == " + v2, c1.compareTo( c2 ) == 0 );
          assertTrue( "expected " + v2 + " == " + v1, c2.compareTo( c1 ) == 0 );
          assertTrue( "expected same hashcode for " + v1 + " and " + v2, c1.hashCode() == c2.hashCode() );
          assertTrue( "expected " + v1 + ".equals( " + v2 + " )", c1.equals( c2 ) );
          assertTrue( "expected " + v2 + ".equals( " + v1 + " )", c2.equals( c1 ) );
      }
  
      private void checkVersionsArrayEqual( String[] array )
      {
          // compare against each other (including itself)
          for ( int i = 0; i < array.length; ++i )
              for ( int j = i; j < array.length; ++j )
                  checkVersionsEqual( array[i], array[j] );
      }
  
      private void checkVersionsOrder( String v1, String v2 )
      {
          Comparable c1 = newComparable( v1 );
          Comparable c2 = newComparable( v2 );
         assertTrue( "expected " + v1 + " < " + v2, c1.compareTo( c2 ) < 0 );
         assertTrue( "expected " + v2 + " > " + v1, c2.compareTo( c1 ) > 0 );
     }
 
     public void testVersionsQualifier()
     {
         checkVersionsOrder( VERSIONS_QUALIFIER );
     }
 
     public void testVersionsNumber()
     {
         checkVersionsOrder( VERSIONS_NUMBER );
     }
 
     public void testVersionsEqual()
     {
         newComparable( "1.0-alpha" );
         checkVersionsEqual( "1", "1" );
         checkVersionsEqual( "1", "1.0" );
         checkVersionsEqual( "1", "1.0.0" );
         checkVersionsEqual( "1.0", "1.0.0" );
         checkVersionsEqual( "1", "1-0" );
         checkVersionsEqual( "1", "1.0-0" );
         checkVersionsEqual( "1.0", "1.0-0" );
         // no separator between number and character
         checkVersionsEqual( "1a", "1-a" );
         checkVersionsEqual( "1a", "1.0-a" );
         checkVersionsEqual( "1a", "1.0.0-a" );
         checkVersionsEqual( "1.0a", "1-a" );
         checkVersionsEqual( "1.0.0a", "1-a" );
         checkVersionsEqual( "1x", "1-x" );
         checkVersionsEqual( "1x", "1.0-x" );
         checkVersionsEqual( "1x", "1.0.0-x" );
         checkVersionsEqual( "1.0x", "1-x" );
         checkVersionsEqual( "1.0.0x", "1-x" );
 
         // aliases
         checkVersionsEqual( "1ga", "1" );
         checkVersionsEqual( "1release", "1" );
         checkVersionsEqual( "1final", "1" );
         checkVersionsEqual( "1cr", "1rc" );
 
         // special "aliases" a, b and m for alpha, beta and milestone
         checkVersionsEqual( "1a1", "1-alpha-1" );
         checkVersionsEqual( "1b2", "1-beta-2" );
         checkVersionsEqual( "1m3", "1-milestone-3" );
 
         // case insensitive
         checkVersionsEqual( "1X", "1x" );
         checkVersionsEqual( "1A", "1a" );
         checkVersionsEqual( "1B", "1b" );
         checkVersionsEqual( "1M", "1m" );
         checkVersionsEqual( "1Ga", "1" );
         checkVersionsEqual( "1GA", "1" );
         checkVersionsEqual( "1RELEASE", "1" );
         checkVersionsEqual( "1release", "1" );
         checkVersionsEqual( "1RELeaSE", "1" );
         checkVersionsEqual( "1Final", "1" );
         checkVersionsEqual( "1FinaL", "1" );
         checkVersionsEqual( "1FINAL", "1" );
         checkVersionsEqual( "1Cr", "1Rc" );
         checkVersionsEqual( "1cR", "1rC" );
         checkVersionsEqual( "1m3", "1Milestone3" );
         checkVersionsEqual( "1m3", "1MileStone3" );
         checkVersionsEqual( "1m3", "1MILESTONE3" );
     }
 
     public void testVersionComparing()
     {
         checkVersionsOrder( "1", "2" );
         checkVersionsOrder( "1.5", "2" );
         checkVersionsOrder( "1", "2.5" );
         checkVersionsOrder( "1.0", "1.1" );
         checkVersionsOrder( "1.1", "1.2" );
         checkVersionsOrder( "1.0.0", "1.1" );
         checkVersionsOrder( "1.0.1", "1.1" );
         checkVersionsOrder( "1.1", "1.2.0" );
 
         checkVersionsOrder( "1.0-alpha-1", "1.0" );
         checkVersionsOrder( "1.0-alpha-1", "1.0-alpha-2" );
         checkVersionsOrder( "1.0-alpha-1", "1.0-beta-1" );
 
         checkVersionsOrder( "1.0-beta-1", "1.0-SNAPSHOT" );
         checkVersionsOrder( "1.0-SNAPSHOT", "1.0" );
         checkVersionsOrder( "1.0-alpha-1-SNAPSHOT", "1.0-alpha-1" );
 
         checkVersionsOrder( "1.0", "1.0-1" );
         checkVersionsOrder( "1.0-1", "1.0-2" );
         checkVersionsOrder( "1.0.0", "1.0-1" );
 
         checkVersionsOrder( "2.0-1", "2.0.1" );
         checkVersionsOrder( "2.0.1-klm", "2.0.1-lmn" );
         checkVersionsOrder( "2.0.1", "2.0.1-xyz" );
 
         checkVersionsOrder( "2.0.1", "2.0.1-123" );
         checkVersionsOrder( "2.0.1-xyz", "2.0.1-123" );
     }
 
     /**
      * Test <a href="https://issues.apache.org/jira/browse/MNG-5568">MNG-5568</a> edge case
      * which was showing transitive inconsistency: since A &gt; B and B &gt; C then we should have A &gt; C
      * otherwise sorting a list of ComparableVersions() will in some cases throw runtime exception;
      * see Netbeans issues <a href="https://netbeans.org/bugzilla/show_bug.cgi?id=240845">240845</a> and
      * <a href="https://netbeans.org/bugzilla/show_bug.cgi?id=226100">226100</a>
      */
     public void testMng5568()
     {
         String a = "6.1.0";
         String b = "6.1.0rc3";
         String c = "6.1H.5-beta"; // this is the unusual version string, with 'H' in the middle
 
         checkVersionsOrder( b, a ); // classical
         checkVersionsOrder( b, c ); // now b < c, but before MNG-5568, we had b > c
         checkVersionsOrder( a, c );
     }
 
     /**
      * Test <a href="https://jira.apache.org/jira/browse/MNG-6572">MNG-6572</a> optimization.
      */
     public void testMng6572()
     {
         String a = "20190126.230843"; // resembles a SNAPSHOT
         String b = "1234567890.12345"; // 10 digit number
         String c = "123456789012345.1H.5-beta"; // 15 digit number
         String d = "12345678901234567890.1H.5-beta"; // 20 digit number
 
         checkVersionsOrder( a, b );
         checkVersionsOrder( b, c );
         checkVersionsOrder( a, c );
         checkVersionsOrder( c, d );
         checkVersionsOrder( b, d );
         checkVersionsOrder( a, d );
     }
 
     /**
      * Test all versions are equal when starting with many leading zeroes regardless of string length
      * (related to MNG-6572 optimization)
      */
     public void testVersionEqualWithLeadingZeroes()
     {
         // versions with string lengths from 1 to 19
         String[] arr = new String[] {
             "0000000000000000001",
             "000000000000000001",
             "00000000000000001",
             "0000000000000001",
             "000000000000001",
             "00000000000001",
             "0000000000001",
             "000000000001",
             "00000000001",
             "0000000001",
             "000000001",
             "00000001",
             "0000001",
             "000001",
             "00001",
             "0001",
             "001",
             "01",
             "1"
         };
 
         checkVersionsArrayEqual( arr );
     }
 
     /**
      * Test all "0" versions are equal when starting with many leading zeroes regardless of string length
      * (related to MNG-6572 optimization)
      */
     public void testVersionZeroEqualWithLeadingZeroes()
     {
         // versions with string lengths from 1 to 19
         String[] arr = new String[] {
             "0000000000000000000",
             "000000000000000000",
             "00000000000000000",
             "0000000000000000",
             "000000000000000",
             "00000000000000",
             "0000000000000",
             "000000000000",
             "00000000000",
             "0000000000",
             "000000000",
             "00000000",
             "0000000",
             "000000",
             "00000",
             "0000",
             "000",
             "00",
             "0"
         };
 
         checkVersionsArrayEqual( arr );
     }
 
     public void testLocaleIndependent()
     {
         Locale orig = Locale.getDefault();
         Locale[] locales = { Locale.ENGLISH, new Locale( "tr" ), Locale.getDefault() };
         try
         {
             for ( Locale locale : locales )
             {
                 Locale.setDefault( locale );
                 checkVersionsEqual( "1-abcdefghijklmnopqrstuvwxyz", "1-ABCDEFGHIJKLMNOPQRSTUVWXYZ" );
             }
         }
         finally
         {
             Locale.setDefault( orig );
         }
     }
 
     public void testReuse()
     {
         ComparableVersion c1 = new ComparableVersion( "1" );
         c1.parseVersion( "2" );
 
         Comparable c2 = newComparable( "2" );
 
         assertEquals( "reused instance should be equivalent to new instance", c1, c2 );
     }
 }