package org.apache.maven.repository.legacy.resolver.conflict;
   
   /*
    * 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 org.apache.maven.artifact.Artifact;
  import org.apache.maven.artifact.factory.ArtifactFactory;
  import org.apache.maven.artifact.resolver.ResolutionNode;
  import org.apache.maven.artifact.versioning.InvalidVersionSpecificationException;
  import org.apache.maven.artifact.versioning.VersionRange;
  import org.apache.maven.repository.legacy.resolver.conflict.ConflictResolver;
  import org.codehaus.plexus.PlexusTestCase;
  
  /**
   * Provides a basis for testing conflict resolvers.
   *
   * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
   */
  public abstract class AbstractConflictResolverTest
      extends PlexusTestCase
  {
      // constants --------------------------------------------------------------
      
      private static final String GROUP_ID = "test";
      
      // fields -----------------------------------------------------------------
      
      protected Artifact a1;
  
      protected Artifact a2;
  
      protected Artifact b1;
  
      private final String roleHint;
      
      private ArtifactFactory artifactFactory;
  
      private ConflictResolver conflictResolver;
      
      // constructors -----------------------------------------------------------
      
      public AbstractConflictResolverTest( String roleHint )
          throws Exception
      {
          this.roleHint = roleHint;
      }
      
      // TestCase methods -------------------------------------------------------
      
      /*
       * @see junit.framework.TestCase#setUp()
       */
      protected void setUp() throws Exception
      {
          super.setUp();
  
          artifactFactory = (ArtifactFactory) lookup( ArtifactFactory.ROLE );
          conflictResolver = (ConflictResolver) lookup( ConflictResolver.ROLE, roleHint );
          
          a1 = createArtifact( "a", "1.0" );
          a2 = createArtifact( "a", "2.0" );
          b1 = createArtifact( "b", "1.0" );
      }
      
      /*
       * @see org.codehaus.plexus.PlexusTestCase#tearDown()
       */
      protected void tearDown() throws Exception
      {
          a1 = null;
          a2 = null;
          b1 = null;
          
          artifactFactory = null;
          conflictResolver = null;
          
          super.tearDown();
      }
      
      // protected methods ------------------------------------------------------
      
      protected ConflictResolver getConflictResolver()
      {
         return conflictResolver;
     }
     
     protected void assertResolveConflict( ResolutionNode expectedNode, ResolutionNode actualNode1, ResolutionNode actualNode2 )
     {
         ResolutionNode resolvedNode = getConflictResolver().resolveConflict( actualNode1, actualNode2 );
         
         assertNotNull( "Expected resolvable", resolvedNode );
         assertEquals( "Resolution node", expectedNode, resolvedNode );
     }
 
     protected void assertUnresolvableConflict( ResolutionNode actualNode1, ResolutionNode actualNode2 )
     {
         ResolutionNode resolvedNode = getConflictResolver().resolveConflict( actualNode1, actualNode2 );
         
         assertNull( "Expected unresolvable", resolvedNode );
     }
 
     protected Artifact createArtifact( String id, String version ) throws InvalidVersionSpecificationException
     {
         return createArtifact( id, version, Artifact.SCOPE_COMPILE );
     }
 
     protected Artifact createArtifact( String id, String version, boolean optional )
         throws InvalidVersionSpecificationException
     {
         return createArtifact( id, version, Artifact.SCOPE_COMPILE, null, optional );
     }
 
     protected Artifact createArtifact( String id, String version, String scope )
         throws InvalidVersionSpecificationException
     {
         return createArtifact( id, version, scope, null, false );
     }
 
     protected Artifact createArtifact( String id, String version, String scope, String inheritedScope, boolean optional )
         throws InvalidVersionSpecificationException
     {
         VersionRange versionRange = VersionRange.createFromVersionSpec( version );
         
         return artifactFactory.createDependencyArtifact( GROUP_ID, id, versionRange, "jar", null, scope,
                                                          inheritedScope, optional );
     }
 }