&& ranges.get(ceilingIndex).isConnected(otherRange)
        && !ranges.get(ceilingIndex).intersection(otherRange).isEmpty()) {
      return true;
    }
    return ceilingIndex > 0
        && ranges.get(ceilingIndex - 1).isConnected(otherRange)
        && !ranges.get(ceilingIndex - 1).intersection(otherRange).isEmpty();
  }

  @Override
  public boolean encloses(Range<C> otherRange) {
    int index =

        && ranges.get(ceilingIndex).isConnected(otherRange)
        && !ranges.get(ceilingIndex).intersection(otherRange).isEmpty()) {
      return true;
    }
    return ceilingIndex > 0
        && ranges.get(ceilingIndex - 1).isConnected(otherRange)
        && !ranges.get(ceilingIndex - 1).intersection(otherRange).isEmpty();
  }

  @Override
  public boolean encloses(Range<C> otherRange) {
    int index =

    ContiguousSet<Integer> emptySet = ContiguousSet.closedOpen(2, 2);
    assertEquals(ImmutableSet.of(), set.intersection(emptySet));
    assertEquals(ImmutableSet.of(), emptySet.intersection(set));
    assertEquals(
        ImmutableSet.of(),
        ContiguousSet.create(Range.closed(-5, -1), integers())
            .intersection(ContiguousSet.create(Range.open(3, 64), integers())));
  }

  public void testIntersection() {

    ContiguousSet<Integer> emptySet = ContiguousSet.closedOpen(2, 2);
    assertEquals(ImmutableSet.of(), set.intersection(emptySet));
    assertEquals(ImmutableSet.of(), emptySet.intersection(set));
    assertEquals(
        ImmutableSet.of(),
        ContiguousSet.create(Range.closed(-5, -1), integers())
            .intersection(ContiguousSet.create(Range.open(3, 64), integers())));
  }

  public void testIntersection() {

   *
   * // impossible for a non-String to be in the intersection
   * SuppressWarnings("unchecked")
   * Set<String> badStrings = (Set) Sets.intersection(aFewBadObjects, manyBadStrings);
   * }
   *
   * <p>This is unfortunate, but should come up only very rarely.
   */
  public static <E extends @Nullable Object> SetView<E> intersection(Set<E> set1, Set<?> set2) {
    checkNotNull(set1, "set1");

    assertEquals(range, range.intersection(range));

    assertEquals(range, range.intersection(Range.atMost(4)));
    assertEquals(range, range.intersection(Range.atMost(3)));
    assertEquals(range, range.intersection(Range.atLeast(3)));
    assertEquals(range, range.intersection(Range.atLeast(2)));

    assertEquals(Range.closedOpen(3, 3), range.intersection(Range.lessThan(3)));

   *
   * // impossible for a non-String to be in the intersection
   * SuppressWarnings("unchecked")
   * Set<String> badStrings = (Set) Sets.intersection(aFewBadObjects, manyBadStrings);
   * }
   *
   * <p>This is unfortunate, but should come up only very rarely.
   */
  public static <E extends @Nullable Object> SetView<E> intersection(Set<E> set1, Set<?> set2) {
    checkNotNull(set1, "set1");

    assertEquals(range, range.intersection(range));

    assertEquals(range, range.intersection(Range.atMost(4)));
    assertEquals(range, range.intersection(Range.atMost(3)));
    assertEquals(range, range.intersection(Range.atLeast(3)));
    assertEquals(range, range.intersection(Range.atLeast(2)));

    assertEquals(Range.closedOpen(3, 3), range.intersection(Range.lessThan(3)));

   * returns a {@link FluentIterable} of elements of an anonymous type whose supertypes are the <a
   * href="https://docs.oracle.com/javase/specs/jls/se25/html/jls-4.html#jls-4.9">intersection</a>
   * of the supertypes of {@code A} and the supertypes of {@code B}.
   */
  public void testConcatIntersectionType() {
    Iterable<A> aIterable = ImmutableList.of();

import static com.google.common.collect.Iterables.getOnlyElement;
import static com.google.common.collect.Lists.newArrayList;
import static com.google.common.collect.Sets.intersection;
import static com.google.common.truth.Truth.assertThat;
import static com.google.common.truth.Truth.assertWithMessage;
import static com.google.common.util.concurrent.Futures.allAsList;