assertTrue(partitions.hasNext());
    assertEquals(ImmutableList.of(1), partitions.next());
    assertFalse(partitions.hasNext());
  }

  @GwtIncompatible // fairly slow (~50s)
  public void testPartition_general() {
    new IteratorTester<List<Integer>>(
        5,
        IteratorFeature.UNMODIFIABLE,
        ImmutableList.of(asList(1, 2, 3), asList(4, 5, 6), asList(7)),
        IteratorTester.KnownOrder.KNOWN_ORDER) {

   * is. The {@code equals} and {@code hashCode} methods of the returned multimap are meaningless,
   * since there is not a definition of {@code equals} or {@code hashCode} for general collections,
   * and {@code get()} will return a general {@code Collection} as opposed to a {@code List} or a
   * {@code Set}.
   *
   * <p>The function is applied lazily, invoked when needed. This is necessary for the returned