testEncodes(base32().withSeparator("*", 4), "foobar", "MZXW*6YTB*OI==*====");
  }

  public void testSeparatorSameAsPadChar() {
    assertThrows(IllegalArgumentException.class, () -> base64().withSeparator("=", 3));

    assertThrows(
        IllegalArgumentException.class, () -> base64().withPadChar('#').withSeparator("!#!", 3));
  }

  public void testAtMostOneSeparator() {

                throw new RuntimeException("Test encode error");
            }
            if (dst == null) {
                throw new IllegalArgumentException("Destination buffer cannot be null");
            }
            if (dstIndex < 0) {
                throw new IllegalArgumentException("Destination index cannot be negative");
            }
            if (dstIndex + encodedSize > dst.length) {

                        .execute()
                        .actionGet(settings.getIndicesTimeout());
                return analyzeResponse.getTokens();
            } catch (final IllegalArgumentException e) {
                return analyze(text, field, lang);
            }
        }
    }

    /**
     * Check if the language is supported.
     * @param lang Language

   * future-proof algorithms <a
   * href="https://datatracker.ietf.org/doc/html/rfc6151#section-2.3">over {@code hmacMd5}</a>.
   *
   * @param key the secret key
   * @throws IllegalArgumentException if the given key is inappropriate for initializing this MAC
   * @since 20.0
   */
  public static HashFunction hmacMd5(Key key) {
    return new MacHashFunction("HmacMD5", key, hmacToString("hmacMd5", key));

    assertThrows(IllegalArgumentException.class, () -> resetMap(entries));
  }

  @MapFeature.Require(REJECTS_DUPLICATES_AT_CREATION)
  @CollectionSize.Require(absent = {ZERO, ONE})
  public void testCreateWithDuplicates_nonNullDuplicatesRejected() {
    Entry<K, V>[] entries = getEntriesMultipleNonNullKeys();
    assertThrows(IllegalArgumentException.class, () -> resetMap(entries));
  }

  }

  @Test
  @Throws(Exception::class)
  fun secondsMustBeNonNegative() {
    val builder = CacheControl.Builder()
    assertFailsWith<IllegalArgumentException> {
      builder.maxAge(-1, TimeUnit.SECONDS)
    }
  }

  @Test
  @Throws(Exception::class)
  fun timePrecisionIsTruncatedToSeconds() {
    val cacheControl =
      CacheControl

            for (int i = 0; i < strLen; i++) {
                if (!Character.isWhitespace(str.charAt(i))) {
                    return;
                }
            }
        }
        throw new IllegalArgumentException(message);
    }

    public static Map<String, Artifact> artifactMapByVersionlessId(Collection<Artifact> artifacts) {
        Map<String, Artifact> artifactMap = new LinkedHashMap<>();

    Interners.InternerBuilder builder = Interners.newBuilder();
    assertThrows(IllegalArgumentException.class, () -> builder.concurrencyLevel(0));
  }

  public void testConcurrencyLevel_negative() {
    Interners.InternerBuilder builder = Interners.newBuilder();
    assertThrows(IllegalArgumentException.class, () -> builder.concurrencyLevel(-42));
  }

  @CollectionFeature.Require(SUPPORTS_ADD)
  public void testAddOccurrencesNegative() {
    assertThrows(IllegalArgumentException.class, () -> getMultiset().add(e0(), -1));
  }

  @CollectionFeature.Require(SUPPORTS_ADD)
  public void testAddTooMany() {
    getMultiset().add(e3(), Integer.MAX_VALUE);
    assertThrows(IllegalArgumentException.class, () -> getMultiset().add(e3()));
    assertEquals(Integer.MAX_VALUE, getMultiset().count(e3()));

      fail(
          "calling setCount() with a negative count should throw "
              + "IllegalArgumentException or UnsupportedOperationException");
    } catch (IllegalArgumentException | UnsupportedOperationException expected) {
    }
  }

  // TODO: test adding element of wrong type

  /**
   * Returns {@link Method} instances for the {@code setCount()} tests that assume multisets support