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1   package org.apache.maven.repository.legacy.resolver.conflict;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *  http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import java.util.Collections;
23  
24  import org.apache.maven.artifact.resolver.ResolutionNode;
25  import org.apache.maven.repository.legacy.resolver.conflict.NearestConflictResolver;
26  
27  /**
28   * Tests <code>NearestConflictResolver</code>.
29   *
30   * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
31   * @see NearestConflictResolver
32   */
33  public class NearestConflictResolverTest
34      extends AbstractConflictResolverTest
35  {
36      // constructors -----------------------------------------------------------
37      
38      public NearestConflictResolverTest()
39          throws Exception
40      {
41          super("nearest");
42      }
43      
44      // tests ------------------------------------------------------------------
45  
46      /**
47       * Tests that <code>a:1.0</code> wins in the scenario:
48       * <pre>
49       * a:1.0
50       * b:1.0 -> a:2.0
51       * </pre>
52       */
53      public void testDepth()
54      {
55          ResolutionNode a1n = new ResolutionNode( a1, Collections.EMPTY_LIST );
56          ResolutionNode b1n = new ResolutionNode( b1, Collections.EMPTY_LIST );
57          ResolutionNode a2n = new ResolutionNode( a2, Collections.EMPTY_LIST, b1n );
58          
59          assertResolveConflict( a1n, a1n, a2n );
60      }
61  
62      /**
63       * Tests that <code>a:1.0</code> wins in the scenario:
64       * <pre>
65       * b:1.0 -> a:2.0
66       * a:1.0
67       * </pre>
68       */
69      public void testDepthReversed()
70      {
71          ResolutionNode b1n = new ResolutionNode( b1, Collections.EMPTY_LIST );
72          ResolutionNode a2n = new ResolutionNode( a2, Collections.EMPTY_LIST, b1n );
73          ResolutionNode a1n = new ResolutionNode( a1, Collections.EMPTY_LIST );
74          
75          assertResolveConflict( a1n, a2n, a1n );
76      }
77  
78      /**
79       * Tests that <code>a:1.0</code> wins in the scenario:
80       * <pre>
81       * a:1.0
82       * a:2.0
83       * </pre>
84       */
85      public void testEqual()
86      {
87          ResolutionNode a1n = new ResolutionNode( a1, Collections.EMPTY_LIST );
88          ResolutionNode a2n = new ResolutionNode( a2, Collections.EMPTY_LIST );
89          
90          assertResolveConflict( a1n, a1n, a2n );
91      }
92  
93      /**
94       * Tests that <code>a:2.0</code> wins in the scenario:
95       * <pre>
96       * a:2.0
97       * a:1.0
98       * </pre>
99       */
100     public void testEqualReversed()
101     {
102         ResolutionNode a2n = new ResolutionNode( a2, Collections.EMPTY_LIST );
103         ResolutionNode a1n = new ResolutionNode( a1, Collections.EMPTY_LIST );
104         
105         assertResolveConflict( a2n, a2n, a1n );
106     }
107 }