Collection<String> set = ImmutableSet.of("a", "b");
    assertEquals(emptyList(), newArrayList(skip(set, 20)));
  }

  public void testSkip_pastEndList() {
    Collection<String> list = newArrayList("a", "b");
    assertEquals(emptyList(), newArrayList(skip(list, 20)));
  }

  public void testSkip_skipNone() {
    Collection<String> set = ImmutableSet.of("a", "b");

/**
 * {@code entrySet()} implementation for {@link ImmutableMap}.
 *
 * @author Jesse Wilson
 * @author Kevin Bourrillion
 */
@GwtCompatible
abstract class ImmutableMapEntrySet<K, V> extends ImmutableSet<Entry<K, V>> {
  static final class RegularEntrySet<K, V> extends ImmutableMapEntrySet<K, V> {
    private final transient ImmutableMap<K, V> map;
    private final transient ImmutableList<Entry<K, V>> entries;

 * writeReplace} when serializing an instance of the subclass. For an example of this problem, see
 * b/310253115.
 */
@NullUnmarked
public class WriteReplaceOverridesTest extends TestCase {
  private static final ImmutableSet<String> GUAVA_PACKAGES =
      FluentIterable.of(
              "base",
              "cache",
              "collect",
              "escape",
              "eventbus",
              "graph",

            .createTestSuite());
    suite.addTestSuite(ImmutableEnumMapTest.class);
    return suite;
  }

  public void testIteratesOnce() {
    Map<AnEnum, AnEnum> map =
        Maps.asMap(
            ImmutableSet.of(AnEnum.A),
            new Function<AnEnum, AnEnum>() {
              boolean used = false;

              @Override
              public AnEnum apply(AnEnum ae) {

import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableMultimap;
import com.google.common.collect.ImmutableMultiset;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.ImmutableSetMultimap;
import com.google.common.collect.ImmutableSortedMap;
import com.google.common.collect.ImmutableSortedMultiset;
import com.google.common.collect.ImmutableSortedSet;

/**
 * {@code entrySet()} implementation for {@link ImmutableMap}.
 *
 * @author Jesse Wilson
 * @author Kevin Bourrillion
 */
@GwtCompatible
abstract class ImmutableMapEntrySet<K, V> extends ImmutableSet.CachingAsList<Entry<K, V>> {
  private static final int SPLITERATOR_CHARACTERISTICS =
      Spliterator.ORDERED | Spliterator.DISTINCT | Spliterator.NONNULL | Spliterator.IMMUTABLE;

    ImmutableSet<String> set = ImmutableSortedSet.of("a", "e", "i", "o", "u").subSet("c", "r");
    ImmutableList<String> list = set.asList();
    assertTrue(list instanceof ImmutableSortedAsList);
    ImmutableList<String> copy = SerializableTester.reserializeAndAssert(list);
    assertTrue(copy instanceof ImmutableSortedAsList);
  }

  public void testAsListInconsistentComparator() {
    ImmutableSet<String> set =

                    for (String s : elements) {
                      checkArgument(set.add(s));
                      builder.addCopies(s, 2);
                    }
                    ImmutableSet<String> elementSet =
                        (ImmutableSet<String>) builder.build().elementSet();
                    return elementSet.asList();
                  }
                })
            .named("ImmutableMultiset.elementSet.asList")

   * documented at {@link Function#apply}). For example, this function yields different results for
   * the two equal instances {@code ImmutableSet.of(1, 2)} and {@code ImmutableSet.of(2, 1)}.
   *
   * <p><b>Warning:</b> as with all function types in this package, avoid depending on the specific
   * {@code equals}, {@code hashCode} or {@code toString} behavior of the returned function. A

    bimap.put("one", 1);
    BiMap<String, Integer> sync = Maps.synchronizedBiMap(bimap);
    bimap.put("two", 2);
    sync.put("three", 3);
    assertEquals(ImmutableSet.of(1, 2, 3), bimap.inverse().keySet());
    assertEquals(ImmutableSet.of(1, 2, 3), sync.inverse().keySet());
  }

  private static final Function<Integer, Double> SQRT_FUNCTION = in -> Math.sqrt(in);

  public void testTransformValues() {