@Override
  public int hashCode() {
    return Objects.hash(host, port);
  }

  /** Rebuild the host:port string, including brackets if necessary. */
  @Override
  public String toString() {
    // "[]:12345" requires 8 extra bytes.
    StringBuilder builder = new StringBuilder(host.length() + 8);
    if (host.indexOf(':') >= 0) {
      builder.append('[').append(host).append(']');
    } else {
      builder.append(host);

    // This sentence just isn't base64() encoded.
    assertFailsToDecode(base64(), "let's not talk of love or chains!");
    // A 4n+1 length string is never legal base64().
    assertFailsToDecode(base64(), "12345", "Invalid input length 5");
    // These have a combination of invalid length, unrecognized characters and wrong padding.
    assertFailsToDecode(base64(), "AB=C", "Unrecognized character: =");

                    example: 20
                  page_numbers:
                    type: array
                    items:
                      type: string
                    example: ["1", "2", "3", "4", "5"]
                  partial:
                    type: boolean
                    example: false
                  search_query:
                    type: string
                    example: "(Fess OR n2sm)"

        assertEquals("dp", crawlingConfigHelper.getPipeline("D1P").get());
    }

    @Test
    public void test_sessionCountId() {
        final String sessionId = "12345";
        final String sessionCountId = sessionId + "-1";
        assertNull(crawlingConfigHelper.get(sessionCountId));
        crawlingConfigHelper.store(sessionId, crawlingConfigHelper.getCrawlingConfig("W1"));

  static final double TWO_VALUES_MAX = 12.34;
  static final double TWO_VALUES_MIN = -56.78;

  static final ImmutableList<Double> OTHER_TWO_VALUES = ImmutableList.of(123.456, -789.012);
  static final double OTHER_TWO_VALUES_MEAN = (123.456 - 789.012) / 2;
  static final double TWO_VALUES_SUM_OF_PRODUCTS_OF_DELTAS =
      (12.34 - TWO_VALUES_MEAN) * (123.456 - OTHER_TWO_VALUES_MEAN)

    Iterator<Integer> iterator = singleton(0).iterator();
    assertEquals(1, Iterators.size(iterator));
  }

  public void testSize_partiallyConsumed() {
    Iterator<Integer> iterator = asList(1, 2, 3, 4, 5).iterator();
    iterator.next();
    iterator.next();
    assertEquals(3, Iterators.size(iterator));
  }

  public void test_contains_nonnull_yes() {

        .addEqualityGroup(new PairedStats(MANY_VALUES_STATS_ITERABLE, ONE_VALUE_STATS, 1.23))
        .addEqualityGroup(
            new PairedStats(MANY_VALUES_STATS_ITERABLE, MANY_VALUES_STATS_ITERABLE, 1.234))
        .testEquals();
  }

  public void testSerializable() {
    SerializableTester.reserializeAndAssert(MANY_VALUES_PAIRED_STATS);
  }

  public void testToString() {

        .addEqualityGroup(new PairedStats(MANY_VALUES_STATS_ITERABLE, ONE_VALUE_STATS, 1.23))
        .addEqualityGroup(
            new PairedStats(MANY_VALUES_STATS_ITERABLE, MANY_VALUES_STATS_ITERABLE, 1.234))
        .testEquals();
  }

  public void testSerializable() {
    SerializableTester.reserializeAndAssert(MANY_VALUES_PAIRED_STATS);
  }

  public void testToString() {

        public boolean isUseOwnTmpDir() {
            return useOwnTmpDir;
        }

        @Override
        public String getPasswordInvalidAdminPasswords() {
            return "admin,password,123456";
        }

        @Override
        public String getStorageMaxItemsInPage() {
            return "25";
        }

        @Override
        public Integer getStorageMaxItemsInPageAsInteger() {

   *     new ImmutableListMultimap.Builder<String, Integer>()
   *         .put("one", 1)
   *         .putAll("several", 1, 2, 3)
   *         .putAll("many", 1, 2, 3, 4, 5)
   *         .build();
   * }
   *
   * <p>Builder instances can be reused; it is safe to call {@link #build} multiple times to build