import org.junit.runners.JUnit4;

/** Tests for repeated node and edge addition and removal in a {@link Network}. */
@RunWith(JUnit4.class)

public final class NetworkMutationTest {
  private static final int NUM_TRIALS = 5;
  private static final int NUM_NODES = 20;
  private static final int NUM_EDGES = 100;
  private static final int NODE_POOL_SIZE = 1000; // must be >> NUM_NODES

  @Test

      node = root.ceiling(comparator(), endpoint);
      if (node == null) {
        return null;
      }
      if (range.getLowerBoundType() == BoundType.OPEN
          && comparator().compare(endpoint, node.getElement()) == 0) {
        node = node.succ();
      }
    } else {
      node = header.succ();
    }
    return (node == header || !range.contains(node.getElement())) ? null : node;
  }

        }
    }

    RemoteRepository getRemoteRepository(org.eclipse.aether.repository.RemoteRepository repository);

    Node getNode(org.eclipse.aether.graph.DependencyNode node);

    Node getNode(org.eclipse.aether.graph.DependencyNode node, boolean verbose);

    @Nonnull
    Artifact getArtifact(@Nonnull org.eclipse.aether.artifact.Artifact artifact);

    @Nonnull

    /**
     * Shortcut for {@code getService(ArtifactFactory.class).create(...)}.
     *
     * @param groupId the group identifier, or {@code null} is unspecified
     * @param artifactId the artifact identifier, or {@code null} is unspecified
     * @param version the artifact version, or {@code null} is unspecified
     * @param extension the artifact extension, or {@code null} is unspecified

                        delegate.getMojoDescriptor().getPluginDescriptor().getDependencyNode();
                DefaultNode node = new DefaultNode(session, resolverNode, false);
                return Collections.unmodifiableMap(node.stream()
                        .filter(Objects::nonNull)
                        .map(Node::getDependency)
                        .filter(Objects::nonNull)

   * all "null" (UNSET).
   *
   * <p>A node with "prev" pointer equal to {@code ENDPOINT} is the first node in the linked list,
   * and a node with "next" pointer equal to {@code ENDPOINT} is the last node.
   */
  @CheckForNull @VisibleForTesting transient long[] links;

  /** Pointer to the first node in the linked list, or {@code ENDPOINT} if there are no entries. */
  private transient int firstEntry;

        assertNotNull(res);
        assertNotNull(res.getValue());
        assertTrue(Files.exists(res.getValue()));

        Node node = session.collectDependencies(session.createDependencyCoordinate(coord));
        assertNotNull(node);
        assertEquals(8, node.getChildren().size());
    }

        if (visitor.enter(this)) {
            for (Node child : getChildren()) {
                if (!child.accept(visitor)) {
                    break;
                }
            }
        }
        return visitor.leave(this);
    }

    @Override
    public Node filter(Predicate<Node> filter) {
        List<Node> children =

 */
package org.apache.maven.internal.impl;

import java.util.Collection;
import java.util.List;

import org.apache.maven.api.Artifact;
import org.apache.maven.api.DependencyCoordinate;
import org.apache.maven.api.Node;
import org.apache.maven.api.Project;
import org.apache.maven.api.RemoteRepository;
import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.di.Named;
import org.apache.maven.api.di.Singleton;

    }

    @Test
    void testCollectArtifactDependencies() {
        Artifact artifact =
                session.createArtifact("org.codehaus.plexus", "plexus-container-default", "1.0-alpha-32", "jar");
        Node root = session.collectDependencies(artifact);
        assertNotNull(root);
    }

    @Test
    void testResolveArtifactCoordinateDependencies() {