new Iterable<Integer>() {
          @Override
          public Iterator<Integer> iterator() {
            return newDoubler(2, 32);
          }
        };
    assertThat(doubled).containsExactly(2, 4, 8, 16, 32).inOrder();
  }

  public void testSampleCode() {
    Iterable<Integer> actual =
        new Iterable<Integer>() {
          @Override
          public Iterator<Integer> iterator() {

    assertThat(cartesianProduct(set(1), set(2, 3)))
        .containsExactly(list(1, 2), list(1, 3))
        .inOrder();
  }

  public void testCartesianProduct_binary2x2() {
    assertThat(cartesianProduct(set(1, 2), set(3, 4)))
        .containsExactly(list(1, 3), list(1, 4), list(2, 3), list(2, 4))
        .inOrder();
  }

  public void testCartesianProduct_2x2x2() {

        .inOrder();
  }

  public void testSubMapExclusiveInclusive() {
    Map<String, Integer> map =
        ImmutableSortedMap.of("one", 1, "two", 2, "three", 3).subMap("one", false, "two", true);
    assertThat(map.entrySet())
        .containsExactly(immutableEntry("three", 3), immutableEntry("two", 2))
        .inOrder();
  }

  public void testSubMapInclusiveInclusive() {

  }

  public void testReuseBuilderWithNonDuplicateElements() {
    ImmutableSet.Builder<String> builder = this.<String>builder().add("a").add("b");
    assertThat(builder.build()).containsExactly("a", "b").inOrder();
    builder.add("c", "d");
    assertThat(builder.build()).containsExactly("a", "b", "c", "d").inOrder();
  }

            .add(Range.closed(5, 8))
            .add(Range.closedOpen(1, 3))
            .build();

    assertThat(rangeSet.asRanges())
        .containsExactly(Range.closedOpen(1, 3), Range.closed(5, 8))
        .inOrder();

    assertTrue(rangeSet.intersects(Range.closed(1, 2)));
    assertTrue(rangeSet.intersects(Range.open(5, 8)));
    assertFalse(rangeSet.intersects(Range.closed(3, 4)));

    RuntimeException re = new RuntimeException(iae);
    IllegalStateException ex = new IllegalStateException(re);

    assertThat(getCausalChain(ex)).containsExactly(ex, re, iae, sue).inOrder();
    assertSame(sue, Iterables.getOnlyElement(getCausalChain(sue)));

    List<Throwable> causes = getCausalChain(ex);
    assertThrows(UnsupportedOperationException.class, () -> causes.add(new RuntimeException()));

  public interface Ordered {
    /**
     * Attests that the expected values must not just be present but must be present in the order
     * they were given.
     */
    void inOrder();
  }

  @IgnoreJRERequirement // *should* be redundant with the annotation on SpliteratorTester
  private abstract static class GeneralSpliterator<E extends @Nullable Object> {
    final Spliterator<E> spliterator;

  public interface Ordered {
    /**
     * Attests that the expected values must not just be present but must be present in the order
     * they were given.
     */
    void inOrder();
  }

  private abstract static class GeneralSpliterator<E extends @Nullable Object> {
    final Spliterator<E> spliterator;

    GeneralSpliterator(Spliterator<E> spliterator) {

    assertThat(tail).containsExactly("c", "A", "B", "C").inOrder();
  }

  public void testSkip_structurallyModifiedSkipSomeList() throws Exception {
    List<String> list = newArrayList("a", "b", "c");
    Iterable<String> tail = skip(list, 1);
    list.subList(1, 3).clear();
    list.addAll(0, newArrayList("A", "B", "C"));
    assertThat(tail).containsExactly("B", "C", "a").inOrder();
  }

    RuntimeException re = new RuntimeException(iae);
    IllegalStateException ex = new IllegalStateException(re);

    assertThat(getCausalChain(ex)).containsExactly(ex, re, iae, sue).inOrder();
    assertSame(sue, Iterables.getOnlyElement(getCausalChain(sue)));

    List<Throwable> causes = getCausalChain(ex);
    assertThrows(UnsupportedOperationException.class, () -> causes.add(new RuntimeException()));