public void testOf_empty() {
    Iterable<String> iterable = MinimalIterable.<String>of();
    Iterator<String> iterator = iterable.iterator();
    assertFalse(iterator.hasNext());
    assertThrows(NoSuchElementException.class, iterator::next);
    assertThrows(IllegalStateException.class, iterable::iterator);
  }

  public void testOf_one() {
    Iterable<String> iterable = MinimalIterable.of("a");

public final class MinimalIterable<E extends @Nullable Object> implements Iterable<E> {
  /** Returns an iterable whose iterator returns the given elements in order. */
  public static <E extends @Nullable Object> MinimalIterable<E> of(E... elements) {
    // Make sure to get an unmodifiable iterator
    return new MinimalIterable<>(asList(elements).iterator());
  }

  /**

  }

  private static boolean isEmpty(Iterable<?> iterable) {
    return iterable instanceof Collection
        ? ((Collection<?>) iterable).isEmpty()
        : !iterable.iterator().hasNext();
  }

  public static void assertEmpty(Iterable<?> iterable) {
    if (!isEmpty(iterable)) {
      fail("Not true that " + iterable + " is empty");
    }
  }

    protected int index = 0;

    /**
     * Returns an {@link Iterable} that wraps the array for use in a for-each statement.
     *
     * @param <T> the type of elements
     * @param items the array of elements to iterate (must not be {@literal null})
     * @return an {@link Iterable} wrapping the array
     */
    public static <T> Iterable<T> iterable(final T... items) {
        assertArgumentNotNull("items", items);

    Iterable<String> iterable = asList("a", "b");
    Iterator<String> cycle = Iterators.cycle(iterable);
    cycle.next();
    assertThrows(UnsupportedOperationException.class, () -> cycle.remove());
  }

  public void testCycleRemoveAfterHasNext() {
    Iterable<String> iterable = Lists.newArrayList("a");
    Iterator<String> cycle = Iterators.cycle(iterable);
    assertTrue(cycle.hasNext());

    public Iterable<UseIterable<? extends Iterable<?>>>
        wildcardOfImplicitBoundedIsSubtypeOfWildcardOfExplicitlyBounded(
            List<UseIterable<?>> withImplicitBounds) {
      return isSubtype(withImplicitBounds);
    }

    @TestSubtype(suppressGetSupertype = true, suppressGetSubtype = true)
    public Iterable<UseSerializableIterable<? extends Iterable<?>>>

import java.util.Iterator;

/**
 * Adapts a test iterable generator to give a TestIteratorGenerator.
 *
 * @author George van den Driessche
 */
@GwtCompatible
public final class DerivedTestIteratorGenerator<E>
    implements TestIteratorGenerator<E>, DerivedGenerator {
  private final TestSubjectGenerator<? extends Iterable<E>> collectionGenerator;

  public DerivedTestIteratorGenerator(

      throws IOException {
    return appendTo(appendable, iterable(first, second, rest));
  }

  /**
   * Appends the string representation of each of {@code parts}, using the previously configured
   * separator between each, to {@code builder}. Identical to {@link #appendTo(Appendable,
   * Iterable)}, except that it does not throw {@link IOException}.
   */
  @CanIgnoreReturnValue

    /**
     * Returns an {@link Iterable} that wraps an {@link IndexedIterator} for use in a for-each statement.
     *
     * @param <T> the element type
     * @param iterable the iterable (must not be {@literal null})
     * @return an {@link Iterable} wrapping an {@link IndexedIterator}
     */
    public static <T> Iterable<Indexed<T>> indexed(final Iterable<T> iterable) {
        assertArgumentNotNull("iterable", iterable);

   * always true when the iterable has fewer than two elements.
   */
  public static <T extends @Nullable Object> boolean isInOrder(
      Iterable<? extends T> iterable, Comparator<T> comparator) {
    checkNotNull(comparator);
    Iterator<? extends T> it = iterable.iterator();
    if (it.hasNext()) {
      T prev = it.next();
      while (it.hasNext()) {
        T next = it.next();
        if (comparator.compare(prev, next) > 0) {