return suite;
  }

  protected SetMultimap<String, Integer> create() {
    return TreeMultimap.create();
  }

  /** Create and populate a {@code TreeMultimap} with the natural ordering of keys and values. */
  private TreeMultimap<String, Integer> createPopulate() {
    TreeMultimap<String, Integer> multimap = TreeMultimap.create();
    multimap.put("google", 2);
    multimap.put("google", 6);
    multimap.put("foo", 3);

import java.util.Map;

/**
 * Test {@code TreeMultimap.asMap().subMap()} with {@link MapInterfaceTest}.
 *
 * @author Jared Levy
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public class SubMapMultimapAsMapImplementsMapTest extends AbstractMultimapAsMapImplementsMapTest {

  public SubMapMultimapAsMapImplementsMapTest() {
    super(true, true, true);
  }

  private TreeMultimap<String, Integer> createMultimap() {

  public void testUnmodifiableTreeMultimap() {
    checkUnmodifiableMultimap(TreeMultimap.<String, Integer>create(), false, "null", 42);
  }

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester
  public void testSerializingUnmodifiableTreeMultimap() {
    Multimap<String, Integer> unmodifiable =
        prepareUnmodifiableTests(TreeMultimap.<String, Integer>create(), false, "null", 42);

      }
    },
    TreeMultimapImpl {
      @Override
      <K extends Comparable<K>, V extends Comparable<V>> SetMultimap<K, V> create(
          Multimap<K, V> contents) {
        return TreeMultimap.create(contents);
      }
    },
    ImmutableSetMultimapImpl {
      @Override
      <K extends Comparable<K>, V extends Comparable<V>> SetMultimap<K, V> create(
          Multimap<K, V> contents) {

      }
    },
    TreeMultimapImpl {
      @Override
      <K extends Comparable<K>, V extends Comparable<V>> SetMultimap<K, V> create(
          Multimap<K, V> contents) {
        return TreeMultimap.create(contents);
      }
    },
    ImmutableSetMultimapImpl {
      @Override
      <K extends Comparable<K>, V extends Comparable<V>> SetMultimap<K, V> create(
          Multimap<K, V> contents) {