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1   package org.apache.maven.project.inheritance.t04;
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
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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.io.File;
23  import java.util.Set;
24  
25  import org.apache.maven.artifact.Artifact;
26  import org.apache.maven.project.MavenProject;
27  import org.apache.maven.project.inheritance.AbstractProjectInheritanceTestCase;
28  
29  /**
30   * Verifies the version of a dependency listed in a parent's
31   * dependencyManagement section is chosen over another version of the same
32   * dependency, listed transitively.
33   *
34   * @author <a href="mailto:pschneider@gmail.com">Patrick Schneider</a>
35   */
36  public class ProjectInheritanceTest
37      extends AbstractProjectInheritanceTestCase
38  {
39      // ----------------------------------------------------------------------
40      //
41      // p1 inherits from p0
42      // p0 inherits from super model
43      //
44      // or we can show it graphically as:
45      //
46      // p1 ---> p0 --> super model
47      //
48      // p1 has a depMgmt section that specifies versions 1.0 of jars "a" & "b"
49      // jar "a" has a transitive dependency on 2.0 of jar "b", but maven should
50      // prefer to use version 1.0.
51      //
52      // ----------------------------------------------------------------------
53  
54      public void testDependencyManagementOverridesTransitiveDependencyVersion()
55          throws Exception
56      {
57          File localRepo = getLocalRepositoryPath();
58          File pom0 = new File( localRepo, "p0/pom.xml" );
59          File pom0Basedir = pom0.getParentFile();
60          File pom1 = new File( pom0Basedir, "p1/pom.xml" );
61  
62          // load the child project, which inherits from p0...
63          MavenProject project0 = getProjectWithDependencies( pom0 );
64          MavenProject project1 = getProjectWithDependencies( pom1 );
65  
66          assertEquals( pom0Basedir, project1.getParent().getBasedir() );
67          Set set = project1.getArtifacts();
68          assertNotNull( "No artifacts", set );
69          assertTrue( "No Artifacts", set.size() > 0 );
70          assertTrue( "Set size should be 3, is " + set.size(), set.size() == 3 );
71  
72          for ( Object aSet : set )
73          {
74              Artifact artifact = (Artifact) aSet;
75              System.out.println(
76                  "Artifact: " + artifact.getDependencyConflictId() + " " + artifact.getVersion() + " Optional=" + (
77                      artifact.isOptional()
78                          ? "true"
79                          : "false" ) );
80              assertTrue( "Incorrect version for " + artifact.getDependencyConflictId(),
81                          artifact.getVersion().equals( "1.0" ) );
82          }
83  
84      }
85  }