* @author Jared Levy
 * @author Hayward Chan
 */
@GwtCompatible
@NullMarked
public class SetGenerators {

  public static class ImmutableSetCopyOfGenerator extends TestStringSetGenerator {
    @Override
    protected Set<String> create(String[] elements) {
      return ImmutableSet.copyOf(elements);
    }
  }

  public static class ImmutableSetUnsizedBuilderGenerator extends TestStringSetGenerator {
    @Override

    // ------------------------------------------------------------------------
    public MetadataGraphVertex getEntry() {
        return entry;
    }

    public void setEntry(MetadataGraphVertex entry) {
        this.entry = entry;
    }

    public TreeSet<MetadataGraphVertex> getVertices() {
        return vertices;
    }

    public List<MetadataGraphEdge> getIncidentEdges(MetadataGraphVertex vertex) {

    @Override
    public void includeArtifact(Artifact artifact) {}

    @Override
    public void omitForNearer(Artifact omitted, Artifact kept) {}

    @Override
    public void omitForCycle(Artifact omitted) {}

    @Override
    public void updateScopeCurrentPom(Artifact artifact, String scope) {}

    @Override
    public void updateScope(Artifact artifact, String scope) {}

    public static final InputLocation DEFAULT_LIFECYCLE_INPUT_LOCATION =
            InputLocation.of(InputSource.of(DEFAULT_LIFECYCLE_MODELID, null));

    public static final String SCOPE_COMPILE = DependencyScope.COMPILE.id();
    public static final String SCOPE_RUNTIME = DependencyScope.RUNTIME.id();
    public static final String SCOPE_TEST_ONLY = DependencyScope.TEST_ONLY.id();

 *
 */
@Deprecated
public class GroupRepositoryMetadata extends AbstractRepositoryMetadata {
    private final String groupId;

    public GroupRepositoryMetadata(String groupId) {
        super(new Metadata());
        this.groupId = groupId;
    }

    @Override
    public boolean storedInGroupDirectory() {
        return true;
    }

    @Override
    public boolean storedInArtifactVersionDirectory() {

   */
  @Test
  public abstract void incidentEdges_checkReturnedSetMutability();

  @Test
  public void nodes_oneNode() {
    addNode(N1);
    assertThat(graph.nodes()).containsExactly(N1);
  }

  @Test
  public void nodes_noNodes() {
    assertThat(graph.nodes()).isEmpty();
  }

  @Test
  public void adjacentNodes_oneEdge() {
    putEdge(N1, N2);

    public Iterator<ResolutionNode> getChildrenIterator() {
        return children.iterator();
    }

    public int getDepth() {
        return depth;
    }

    public List<ArtifactRepository> getRemoteRepositories() {
        return remoteRepositories;
    }

    public boolean isActive() {
        return active;
    }

    public void enable() {
        active = true;

    public ProjectBuilderConfiguration setGlobalProfileManager(ProfileManager globalProfileManager) {
        this.globalProfileManager = globalProfileManager;
        return this;
    }

    @Override
    public ProfileManager getGlobalProfileManager() {
        return globalProfileManager;
    }

    @Override
    public ProjectBuilderConfiguration setLocalRepository(ArtifactRepository localRepository) {

    }

    @Override
    public File getFile() {
        return artifact.getFile();
    }

    @Override
    public String getProperty(String key, String defaultValue) {
        return artifact.getProperty(key, defaultValue);
    }

    @Override
    public Map<String, String> getProperties() {
        return artifact.getProperties();
    }

    public String getMessage() {

  // We use ::iterator so that we test passing a plain Iterable, not a Collection.
  "UnnecessaryMethodReference",
})
public class MultimapPutIterableTester<K, V> extends AbstractMultimapTester<K, V, Multimap<K, V>> {
  @CollectionSize.Require(absent = ZERO)
  @MapFeature.Require(SUPPORTS_PUT)
  public void testPutAllNonEmptyIterableOnPresentKey() {
    assertTrue(multimap().putAll(k0(), newArrayList(v3(), v4())::iterator));