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/*
* 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.
*/
package org.apache.maven.graph;
import junit.framework.TestCase;
import org.apache.maven.execution.ProjectDependencyGraph;
import org.apache.maven.model.Dependency;
import org.apache.maven.project.DuplicateProjectException;
import org.apache.maven.project.MavenProject;
import org.codehaus.plexus.util.dag.CycleDetectedException;
import java.util.Arrays;
import java.util.List;
/**
* @author Kristian Rosenvold
*/
public class DefaultProjectDependencyGraphTest
extends TestCase
{
private final MavenProject aProject = createA();
private final MavenProject depender1 = createProject( Arrays.asList( toDependency( aProject ) ), "depender1" );
private final MavenProject depender2 = createProject( Arrays.asList( toDependency( aProject ) ), "depender2" );
private final MavenProject depender3 = createProject( Arrays.asList( toDependency( aProject ) ), "depender3" );
private final MavenProject depender4 =
createProject( Arrays.asList( toDependency( aProject ), toDependency( depender3 ) ), "depender4" );
private final MavenProject transitiveOnly =
createProject( Arrays.asList( toDependency( depender3 ) ), "depender5" );
public void testGetSortedProjects()
throws DuplicateProjectException, CycleDetectedException
{
ProjectDependencyGraph graph = new DefaultProjectDependencyGraph( Arrays.asList( depender1, aProject ) );
final List<MavenProject> sortedProjects = graph.getSortedProjects();
assertEquals( aProject, sortedProjects.get( 0 ) );
assertEquals( depender1, sortedProjects.get( 1 ) );
}
public void testVerifyExpectedParentStructure()
throws CycleDetectedException, DuplicateProjectException
{
// This test verifies the baseline structure used in susequent tests. If this fails, the rest will fail.
ProjectDependencyGraph graph = threeProjectsDependingOnASingle();
final List<MavenProject> sortedProjects = graph.getSortedProjects();
assertEquals( aProject, sortedProjects.get( 0 ) );
assertEquals( depender1, sortedProjects.get( 1 ) );
assertEquals( depender2, sortedProjects.get( 2 ) );
assertEquals( depender3, sortedProjects.get( 3 ) );
}
public void testVerifyThatDownsteamProjectsComeInSortedOrder()
throws CycleDetectedException, DuplicateProjectException
{
final List<MavenProject> downstreamProjects =
threeProjectsDependingOnASingle().getDownstreamProjects( aProject, true );
assertEquals( depender1, downstreamProjects.get( 0 ) );
assertEquals( depender2, downstreamProjects.get( 1 ) );
assertEquals( depender3, downstreamProjects.get( 2 ) );
}
public void testTransitivesInOrder()
throws CycleDetectedException, DuplicateProjectException
{
final ProjectDependencyGraph graph =
new DefaultProjectDependencyGraph( Arrays.asList( depender1, depender4, depender2, depender3, aProject ) );
final List<MavenProject> downstreamProjects = graph.getDownstreamProjects( aProject, true );
assertEquals( depender1, downstreamProjects.get( 0 ) );
assertEquals( depender3, downstreamProjects.get( 1 ) );
assertEquals( depender4, downstreamProjects.get( 2 ) );
assertEquals( depender2, downstreamProjects.get( 3 ) );
}
public void testNonTransitivesInOrder()
throws CycleDetectedException, DuplicateProjectException
{
final ProjectDependencyGraph graph =
new DefaultProjectDependencyGraph( Arrays.asList( depender1, depender4, depender2, depender3, aProject ) );
final List<MavenProject> downstreamProjects = graph.getDownstreamProjects( aProject, false );
assertEquals( depender1, downstreamProjects.get( 0 ) );
assertEquals( depender3, downstreamProjects.get( 1 ) );
assertEquals( depender4, downstreamProjects.get( 2 ) );
assertEquals( depender2, downstreamProjects.get( 3 ) );
}
public void testWithTranistiveOnly()
throws CycleDetectedException, DuplicateProjectException
{
final ProjectDependencyGraph graph = new DefaultProjectDependencyGraph(
Arrays.asList( depender1, transitiveOnly, depender2, depender3, aProject ) );
final List<MavenProject> downstreamProjects = graph.getDownstreamProjects( aProject, true );
assertEquals( depender1, downstreamProjects.get( 0 ) );
assertEquals( depender3, downstreamProjects.get( 1 ) );
assertEquals( transitiveOnly, downstreamProjects.get( 2 ) );
assertEquals( depender2, downstreamProjects.get( 3 ) );
}
public void testWithMissingTranistiveOnly()
throws CycleDetectedException, DuplicateProjectException
{
final ProjectDependencyGraph graph = new DefaultProjectDependencyGraph(
Arrays.asList( depender1, transitiveOnly, depender2, depender3, aProject ) );
final List<MavenProject> downstreamProjects = graph.getDownstreamProjects( aProject, false );
assertEquals( depender1, downstreamProjects.get( 0 ) );
assertEquals( depender3, downstreamProjects.get( 1 ) );
assertEquals( depender2, downstreamProjects.get( 2 ) );
}
public void testGetUpstreamProjects()
throws CycleDetectedException, DuplicateProjectException
{
ProjectDependencyGraph graph = threeProjectsDependingOnASingle();
final List<MavenProject> downstreamProjects = graph.getUpstreamProjects( depender1, true );
assertEquals( aProject, downstreamProjects.get( 0 ) );
}
private ProjectDependencyGraph threeProjectsDependingOnASingle()
throws CycleDetectedException, DuplicateProjectException
{
return new DefaultProjectDependencyGraph( Arrays.asList( depender1, depender2, depender3, aProject ) );
}
private static MavenProject createA()
{
MavenProject result = new MavenProject();
result.setGroupId( "org.apache" );
result.setArtifactId( "A" );
result.setVersion( "1.2" );
return result;
}
static Dependency toDependency( MavenProject mavenProject )
{
final Dependency dependency = new Dependency();
dependency.setArtifactId( mavenProject.getArtifactId() );
dependency.setGroupId( mavenProject.getGroupId() );
dependency.setVersion( mavenProject.getVersion() );
return dependency;
}
private static MavenProject createProject( List<Dependency> dependencies, String artifactId )
{
MavenProject result = new MavenProject();
result.setGroupId( "org.apache" );
result.setArtifactId( artifactId );
result.setVersion( "1.2" );
result.setDependencies( dependencies );
return result;
}
}
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