return suite;
  }

  @SuppressWarnings("DoNotCall")
  public void testEmptyIterator() {
    Iterator<String> iterator = emptyIterator();
    assertFalse(iterator.hasNext());
    assertThrows(NoSuchElementException.class, () -> iterator.next());
    assertThrows(UnsupportedOperationException.class, () -> iterator.remove());
  }

  @SuppressWarnings("DoNotCall")
  public void testEmptyListIterator() {

    ImmutableSortedSet<LegacyComparable> set = builder.build();
    assertTrue(elementsEqual(LegacyComparable.VALUES_BACKWARD, set));
  }

  @SuppressWarnings({"deprecation", "static-access", "DoNotCall"})
  public void testBuilderMethod() {
    assertThrows(UnsupportedOperationException.class, () -> ImmutableSortedSet.builder());
  }

  public void testAsList() {

    ImmutableSortedSet<LegacyComparable> set = builder.build();
    assertTrue(elementsEqual(LegacyComparable.VALUES_BACKWARD, set));
  }

  @SuppressWarnings({"deprecation", "static-access", "DoNotCall"})
  public void testBuilderMethod() {
    assertThrows(UnsupportedOperationException.class, () -> ImmutableSortedSet.builder());
  }

  public void testAsList() {