new TestStringSetGenerator() {
                  @Override
                  protected Set<String> create(String[] elements) {
                    Iterable<String> rowKeys = ImmutableSet.copyOf(elements);
                    Iterable<Integer> columnKeys = ImmutableList.of(1, 2, 3);
                    Table<String, Integer, Character> table =
                        ArrayTable.create(rowKeys, columnKeys);

      fail(builder.toString());
    }
  }

  /**
   * Returns an iterable containing all combinations of maximumSize, expireAfterAccess/Write,
   * weakKeys and weak/softValues.
   */
  private static Iterable<CacheBuilder<Object, Object>> allEntryTypeMakers() {
    List<CacheBuilder<Object, Object>> result = new ArrayList<>();
    Iterables.addAll(result, allKeyValueStrengthMakers());

  }

  @SafeVarargs
  @CanIgnoreReturnValue
  public final Ordered expect(Object... elements) {
    return expect(asList(elements));
  }

  @CanIgnoreReturnValue
  public final Ordered expect(Iterable<?> elements) {
    List<List<E>> resultsForAllStrategies = new ArrayList<>();
    for (Supplier<GeneralSpliterator<E>> spliteratorSupplier : spliteratorSuppliers) {

  }

  @SafeVarargs
  @CanIgnoreReturnValue
  public final Ordered expect(Object... elements) {
    return expect(asList(elements));
  }

  @CanIgnoreReturnValue
  public final Ordered expect(Iterable<?> elements) {
    List<List<E>> resultsForAllStrategies = new ArrayList<>();
    for (Supplier<GeneralSpliterator<E>> spliteratorSupplier : spliteratorSuppliers) {

  private static final Joiner JOINER_ON_CHARACTER = Joiner.on(DELIMITER_CHARACTER);

  @Param({"3", "30", "300"})
  int count;

  @Param({"0", "1", "16", "32", "100"})
  int componentLength;

  private Iterable<String> components;

  @BeforeExperiment
  @SuppressWarnings("InlineMeInliner") // String.repeat unavailable under Java 8
  void setUp() {
    String component = Strings.repeat("a", componentLength);

  /** Most of the tests in this class run against every one of these caches. */
  private Iterable<LoadingCache<Object, Object>> caches() {
    // lots of different ways to configure a LoadingCache
    CacheBuilderFactory factory = cacheFactory();
    return Iterables.transform(
        factory.buildAllPermutations(),
        new Function<CacheBuilder<Object, Object>, LoadingCache<Object, Object>>() {

  }

  @MapFeature.Require(SUPPORTS_PUT)
  public void testPutAll_nullCollectionReference() {
    assertThrows(NullPointerException.class, () -> getMap().putAll(null));
  }

  private void putAll(Iterable<Entry<K, V>> entries) {
    Map<K, V> map = new LinkedHashMap<>();
    for (Entry<K, V> entry : entries) {
      map.put(entry.getKey(), entry.getValue());
    }
    getMap().putAll(map);
  }

  /**

 *
 * {@snippet :
 * class MySubtypeTests extends SubtypeTester {
 *   @TestSubtype(suppressGetSubtype = true, suppressGetSupertype = true)
 *   public <T> Iterable<? extends T> listIsSubtypeOfIterable(List<T> list) {
 *     return isSubtype(list);
 *   }
 *
 *   @TestSubtype
 *   public List<String> intListIsNotSubtypeOfStringList(List<Integer> intList) {

    assertTrue(emptyConcat.isEmpty());
  }

  public void testConcat_infiniteIterable() throws IOException {
    CharSource source = CharSource.wrap("abcd");
    Iterable<CharSource> cycle = Iterables.cycle(ImmutableList.of(source));
    CharSource concatenated = CharSource.concat(cycle);

    String expected = "abcdabcd";

    @SuppressWarnings("unchecked")
    @Override
    public Entry<Country, String>[] createArray(int length) {
      return (Entry<Country, String>[]) new Entry<?, ?>[length];
    }

    @Override
    public Iterable<Entry<Country, String>> order(List<Entry<Country, String>> insertionOrder) {
      return insertionOrder;
    }

    @Override
    public Country[] createKeyArray(int length) {
      return new Country[length];