maven-compat/src/test/java/org/apache/maven/artifact/resolver/DefaultArtifactResolverTest.java

/*
 * 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
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 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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package org.apache.maven.artifact.resolver;

import javax.inject.Inject;

import java.util.Collections;

import org.apache.maven.artifact.AbstractArtifactComponentTestCase;
import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.resolver.DefaultArtifactResolver.DaemonThreadCreator;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertTrue;

class DefaultArtifactResolverTest extends AbstractArtifactComponentTestCase {
    @Inject
    private ArtifactResolver artifactResolver;

    private Artifact projectArtifact;

    @BeforeEach
    @Override
    public void setUp() throws Exception {
        super.setUp();
        projectArtifact = createLocalArtifact("project", "3.0");
    }

    @Override
    protected String component() {
        return "resolver";
    }

    @Test
    void testMNG4738() throws Exception {
        Artifact g = createLocalArtifact("g", "1.0");
        createLocalArtifact("h", "1.0");
        artifactResolver.resolveTransitively(
                Collections.singleton(g), projectArtifact, remoteRepositories(), localRepository(), null);

        // we want to see all top-level thread groups
        ThreadGroup tg = Thread.currentThread().getThreadGroup();
        while (tg.getParent() == null) {
            tg = tg.getParent();
        }

        ThreadGroup[] tgList = new ThreadGroup[tg.activeGroupCount()];
        tg.enumerate(tgList);

        boolean seen = false;

        for (ThreadGroup aTgList : tgList) {
            if (!aTgList.getName().equals(DaemonThreadCreator.THREADGROUP_NAME)) {
                continue;
            }

            seen = true;

            tg = aTgList;
            Thread[] ts = new Thread[tg.activeCount()];
            tg.enumerate(ts);

            for (Thread active : ts) {
                String name = active.getName();
                boolean daemon = active.isDaemon();
                assertTrue(daemon, name + " is no daemon Thread.");
            }
        }

        assertTrue(seen, "Could not find ThreadGroup: " + DaemonThreadCreator.THREADGROUP_NAME);
    }

    @Test
    void testLookup() throws Exception {
        ArtifactResolver resolver = getContainer().lookup(ArtifactResolver.class, "default");
    }
}