maven-compat/src/test/java/org/apache/maven/repository/metadata/DefaultGraphConflictResolverTest.java

package org.apache.maven.repository.metadata;

/*
 * 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 javax.inject.Inject;

import org.apache.maven.artifact.ArtifactScopeEnum;
import org.apache.maven.test.PlexusTestCase;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;

/**
 *
 * @author <a href="mailto:oleg@codehaus.org">Oleg Gusakov</a>
 *
 */

public class DefaultGraphConflictResolverTest
extends PlexusTestCase
{
    @Inject
    GraphConflictResolver resolver;

    MetadataGraph graph;

    MetadataGraphVertex v1;
    MetadataGraphVertex v2;
    MetadataGraphVertex v3;
    MetadataGraphVertex v4;
    //------------------------------------------------------------------------------------------
	@BeforeEach
    @Override
    public void setUp() throws Exception
    {
        super.setUp();

        /*
         *       v2
         *   v1<
         *      v3-v4
         *
         */
        graph = new MetadataGraph( 4, 3 );
        v1 = graph.addVertex(new ArtifactMetadata("g","a1","1.0"));
        graph.setEntry(v1);
        v2 = graph.addVertex(new ArtifactMetadata("g","a2","1.0"));
        v3 = graph.addVertex(new ArtifactMetadata("g","a3","1.0"));
        v4 = graph.addVertex(new ArtifactMetadata("g","a4","1.0"));

        // v1-->v2
        graph.addEdge(v1, v2, new MetadataGraphEdge( "1.1", true, null, null, 2, 1 ) );
        graph.addEdge(v1, v2, new MetadataGraphEdge( "1.2", true, null, null, 2, 2 ) );

        // v1-->v3
        graph.addEdge(v1, v3, new MetadataGraphEdge( "1.1", true, null, null, 2, 1 ) );
        graph.addEdge(v1, v3, new MetadataGraphEdge( "1.2", true, null, null, 4, 2 ) );

        // v3-->v4
        graph.addEdge(v3, v4, new MetadataGraphEdge( "1.1", true, ArtifactScopeEnum.runtime, null, 2, 1 ) );
        graph.addEdge(v3, v4, new MetadataGraphEdge( "1.2", true, ArtifactScopeEnum.provided, null, 2, 2 ) );
    }
    //------------------------------------------------------------------------------------------
	@Test
    public void testCompileResolution()
    throws Exception
    {
        MetadataGraph res;

        res = resolver.resolveConflicts( graph, ArtifactScopeEnum.compile );

        assertNotNull( res, "null graph after resolver" );
        assertNotNull( res.getVertices(), "no vertices in the resulting graph after resolver" );

        assertNotNull( res.getExcidentEdges(v1), "no edges in the resulting graph after resolver" );

        assertEquals( 4, res.getVertices().size(), "wrong # of vertices in the resulting graph after resolver" );
        assertEquals( 2, res.getExcidentEdges(v1).size(), "wrong # of excident edges in the resulting graph entry after resolver" );

        assertEquals( 1, res.getIncidentEdges(v2).size(), "wrong # of v2 incident edges in the resulting graph after resolver" );
        assertEquals( "1.2", res.getIncidentEdges(v2).get(0).getVersion(), "wrong edge v1-v2 in the resulting graph after resolver" );

        assertEquals( 1, res.getIncidentEdges(v3).size(), "wrong # of edges v1-v3 in the resulting graph after resolver" );
        assertEquals( "1.1", res.getIncidentEdges(v3).get(0).getVersion(), "wrong edge v1-v3 in the resulting graph after resolver" );

        assertEquals( 1, res.getIncidentEdges(v4).size(), "wrong # of edges v3-v4 in the resulting graph after resolver" );
        assertEquals( "1.2", res.getIncidentEdges(v4).get(0).getVersion(), "wrong edge v3-v4 in the resulting graph after resolver" );
    }
    //------------------------------------------------------------------------------------------
	@Test
    public void testRuntimeResolution()
    throws Exception
    {
        MetadataGraph res;

        res = resolver.resolveConflicts( graph, ArtifactScopeEnum.runtime );

        assertNotNull( res, "null graph after resolver" );
        assertNotNull( res.getVertices(), "no vertices in the resulting graph after resolver" );
        assertNotNull( res.getExcidentEdges(v1), "no edges in the resulting graph after resolver" );

        assertEquals( 4, res.getVertices().size(), "wrong # of vertices in the resulting graph after resolver" );
        assertEquals( 2, res.getExcidentEdges(v1).size(), "wrong # of excident edges in the resulting graph entry after resolver" );

        assertEquals( 1, res.getIncidentEdges(v2).size(), "wrong # of v2 incident edges in the resulting graph after resolver" );
        assertEquals( "1.2", res.getIncidentEdges(v2).get(0).getVersion(), "wrong edge v1-v2 in the resulting graph after resolver" );

        assertEquals( 1, res.getIncidentEdges(v3).size(), "wrong # of edges v1-v3 in the resulting graph after resolver" );
        assertEquals( "1.1", res.getIncidentEdges(v3).get(0).getVersion(), "wrong edge v1-v3 in the resulting graph after resolver" );

        assertEquals( 1, res.getIncidentEdges(v4).size(), "wrong # of edges v3-v4 in the resulting graph after resolver" );
        assertEquals( "1.1", res.getIncidentEdges(v4).get(0).getVersion(), "wrong edge v3-v4 in the resulting graph after resolver" );
    }
    //------------------------------------------------------------------------------------------
	@Test
    public void testTestResolution()
    throws Exception
    {
        MetadataGraph res;

        res = resolver.resolveConflicts( graph, ArtifactScopeEnum.test );

        assertNotNull( res, "null graph after resolver" );
        assertNotNull( res.getVertices(), "no vertices in the resulting graph after resolver" );
        assertNotNull( res.getExcidentEdges(v1), "no edges in the resulting graph after resolver" );

        assertEquals( 4, res.getVertices().size(), "wrong # of vertices in the resulting graph after resolver" );
        assertEquals( 2, res.getExcidentEdges(v1).size(), "wrong # of excident edges in the resulting graph entry after resolver" );

        assertEquals( 1, res.getIncidentEdges(v2).size(), "wrong # of v2 incident edges in the resulting graph after resolver" );
        assertEquals( "1.2", res.getIncidentEdges(v2).get(0).getVersion(), "wrong edge v1-v2 in the resulting graph after resolver" );

        assertEquals(  1, res.getIncidentEdges(v3).size(), "wrong # of edges v1-v3 in the resulting graph after resolver" );
        assertEquals( "1.1", res.getIncidentEdges(v3).get(0).getVersion(), "wrong edge v1-v3 in the resulting graph after resolver" );

        assertEquals( 1, res.getIncidentEdges(v4).size(), "wrong # of edges v3-v4 in the resulting graph after resolver" );
        assertEquals( "1.2", res.getIncidentEdges(v4).get(0).getVersion(), "wrong edge v3-v4 in the resulting graph after resolver" );
    }
    //------------------------------------------------------------------------------------------
    //------------------------------------------------------------------------------------------
}