directedGraph.putEdge(N1, N2);
    directedGraph.putEdge(N2, N1);
    directedGraph.putEdge(N1, N3); // only incident to one node in nodeSubset
    directedGraph.putEdge(N4, N4);
    directedGraph.putEdge(5, 6); // not incident to any node in nodeSubset

    MutableGraph<Integer> expectedSubgraph = GraphBuilder.directed().allowsSelfLoops(true).build();
    expectedSubgraph.putEdge(N1, N2);

        assertThat(graph.removeNode(nodeList.get(i))).isTrue();
      }

      assertThat(graph.nodes()).hasSize(NUM_NODES - numNodesToRemove);
      // Number of edges remaining is unknown (node's incident edges have been removed).
      AbstractGraphTest.validateGraph(graph);

      for (int i = numNodesToRemove; i < NUM_NODES; ++i) {
        assertThat(graph.removeNode(nodeList.get(i))).isTrue();
      }

   * @since 27.1
   */
  @CanIgnoreReturnValue
  boolean addEdge(EndpointPair<N> endpoints, E edge);

  /**
   * Removes {@code node} if it is present; all edges incident to {@code node} will also be removed.
   *
   * @return {@code true} if the network was modified as a result of this call
   */
  @CanIgnoreReturnValue
  boolean removeNode(N node);

  /**

        return rest.length + 2;
      }

      @Override
      @CheckForNull
      public Object get(int index) {
        switch (index) {
          case 0:
            return first;
          case 1:
            return second;
          default:
            return rest[index - 2];
        }
      }
    };
  }

   * that contains all of the nodes in {@code nodes}, and all of the {@link Network#edges() edges}
   * from {@code network} for which the {@link Network#incidentNodes(Object) incident nodes} are
   * both contained by {@code nodes}.
   *
   * @throws IllegalArgumentException if any element in {@code nodes} is not a node in the graph
   */
  public static <N, E> MutableNetwork<N, E> inducedSubgraph(

        assertThat(graph.removeNode(nodeList.get(i))).isTrue();
      }

      assertThat(graph.nodes()).hasSize(NUM_NODES - numNodesToRemove);
      // Number of edges remaining is unknown (node's incident edges have been removed).
      AbstractGraphTest.validateGraph(graph);

      for (int i = numNodesToRemove; i < NUM_NODES; ++i) {
        assertThat(graph.removeNode(nodeList.get(i))).isTrue();
      }

    if (connections == null) {
      return false;
    }

    if (allowsSelfLoops()) {
      // Remove self-loop (if any) first, so we don't get CME while removing incident edges.
      if (connections.removeSuccessor(node) != null) {
        connections.removePredecessor(node);
        --edgeCount;
      }
    }

a--'

  `Well!  WHAT are you?' said the Pigeon.  `I can see you're
trying to invent something!'

  `I--I'm a little girl,' said Alice, rather doubtfully, as she
remembered the number of changes she had gone through that day.

  `A likely story indeed!' said the Pigeon in a tone of the
deepest contempt.  `I've seen a good many little girls in my

 * is a thin wrapper around {@link InetAddresses} and {@link InternetDomainName}; the unit tests for
 * those classes explore numerous corner cases. The intent here is to confirm that everything is
 * wired up properly.
 *
 * @author Craig Berry
 */
public final class HostSpecifierTest extends TestCase {

  private static final ImmutableList<String> GOOD_IPS =

    directedGraph.putEdge(N1, N2);
    directedGraph.putEdge(N2, N1);
    directedGraph.putEdge(N1, N3); // only incident to one node in nodeSubset
    directedGraph.putEdge(N4, N4);
    directedGraph.putEdge(5, 6); // not incident to any node in nodeSubset

    MutableGraph<Integer> expectedSubgraph = GraphBuilder.directed().allowsSelfLoops(true).build();
    expectedSubgraph.putEdge(N1, N2);