core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4690InterdependentConflictResolutionTest.java

package org.apache.maven.it;

/*
 * 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.it.Verifier;
import org.apache.maven.it.util.ResourceExtractor;

import java.io.File;
import java.util.List;

/**
 * This is a test set for <a href="https://issues.apache.org/jira/browse/MNG-4690">MNG-4690</a>.
 *
 * @author Benjamin Bentmann
 */
public class MavenITmng4690InterdependentConflictResolutionTest
    extends AbstractMavenIntegrationTestCase
{

    public MavenITmng4690InterdependentConflictResolutionTest()
    {
        super( "[2.0.9,)" );
    }

    // Ideally, all six permutations of the three direct dependencies should yield the same result...

    public void testitADX()
        throws Exception
    {
        requiresMavenVersion( "[3.0-beta-3,)" );
        testit( "test-adx" );
    }

    public void testitAXD()
        throws Exception
    {
        testit( "test-axd" );
    }

    public void testitDAX()
        throws Exception
    {
        requiresMavenVersion( "[3.0-beta-3,)" );
        testit( "test-dax" );
    }

    public void testitDXA()
        throws Exception
    {
        testit( "test-dxa" );
    }

    public void testitXAD()
        throws Exception
    {
        testit( "test-xad" );
    }

    public void testitXDA()
        throws Exception
    {
        testit( "test-xda" );
    }

    /**
     * Verify that conflict resolution doesn't depend on the declaration order of dependencies (from distinct tree
     * levels) when the resolution of one conflict influences another conflict.
     */
    private void testit( String test )
        throws Exception
    {
        File testDir = ResourceExtractor.simpleExtractResources( getClass(), "/mng-4690" );

        Verifier verifier = newVerifier( new File( testDir, test ).getAbsolutePath() );
        verifier.setAutoclean( false );
        verifier.deleteDirectory( "target" );
        verifier.deleteArtifacts( "org.apache.maven.its.mng4690" );
        verifier.addCliOption( "-s" );
        verifier.addCliOption( "settings.xml" );
        verifier.filterFile( "../settings-template.xml", "settings.xml", "UTF-8", verifier.newDefaultFilterProperties() );
        verifier.executeGoal( "validate" );
        verifier.verifyErrorFreeLog();
        verifier.resetStreams();

        List<String> classpath = verifier.loadLines( "target/classpath.txt", "UTF-8" );

        assertTrue( test + " > " + classpath.toString(), classpath.contains( "a-1.jar" ) );
        assertTrue( test + " > " + classpath.toString(), classpath.contains( "b-1.jar" ) );
        assertTrue( test + " > " + classpath.toString(), classpath.contains( "c-1.jar" ) );
        assertTrue( test + " > " + classpath.toString(), classpath.contains( "d-1.jar" ) );

        assertTrue( test + " > " + classpath.toString(), classpath.contains( "x-1.jar" ) );
        assertTrue( test + " > " + classpath.toString(), classpath.contains( "y-2.jar" ) );
    }

}