return len;
    }

    /**
     * Decodes a string from OEM-encoded bytes.
     *
     * @param src the byte array containing the encoded string
     * @param srcIndex the starting offset in the byte array
     * @param len the number of bytes to decode
     * @param config the configuration providing the OEM encoding
     * @return decoded string
     */

        final byte[] decoded = Base64Util.decode(encoded);
        assertEquals("Decoded should have same length", 2, decoded.length);
        assertEquals("First byte should match", twoBytes[0], decoded[0]);
        assertEquals("Second byte should match", twoBytes[1], decoded[1]);
    }

    /**
     * Test backward compatibility with standard Base64
     *
     * @throws Exception
     */

				ok = false
				continue
			}
			// Delete first shard and reconstruct...
			first := encoded[0]
			encoded[0] = nil
			failOnErr(e.DecodeDataBlocks(encoded))
			if a, b := first, encoded[0]; !bytes.Equal(a, b) {
				fmt.Fprintf(os.Stderr, "%v: error on self-test [d:%d,p:%d]: want %#v, got %#v\n", algo, conf[0], conf[1], hex.EncodeToString(a), hex.EncodeToString(b))

 *
 *  * In queries, ' ' is encoded to '+' and '+' is encoded to "%2B".
 *
 *  * Characters in `encodeSet` are percent-encoded.
 *
 *  * Control characters and non-ASCII characters are percent-encoded.
 *
 *  * All other characters are copied without transformation.
 *
 * @param alreadyEncoded true to leave '%' as-is; false to convert it to '%25'.

  }

  private fun testToUrl(
    codePoint: Int,
    encoding: UrlComponentEncodingTester.Encoding,
    component: Component,
  ) {
    val encoded = encoding.encode(codePoint)
    val httpUrl = component.urlString(encoded).toHttpUrl()
    val javaNetUrl = httpUrl.toUrl()
    if (javaNetUrl.toString() != javaNetUrl.toString()) {
      fail("Encoding $component $codePoint using $encoding")
    }
  }

        byte[] dest = new byte[5];

        int encodedLen = encodable.encode(dest, 0);

        // Verify encoded length
        assertEquals(3, encodedLen, "Encoded length should be equal to the specified length");

        // Verify content
        assertArrayEquals(new byte[] { 0x02, 0x03, 0x04, 0x00, 0x00 }, dest, "Encoded bytes should match the expected subset");
    }

    @Test

        buffer.append("=");
        return buffer.toString();
    }

    /**
     * Decodes the supplied Base-64 encoded string.
     *
     * @param string The Base-64 encoded string that is to be decoded.
     * @return A <code>byte[]</code> containing the decoded data block.
     */
    public static byte[] decode(final String string) {
        final int length = string.length();
        if (length == 0) {

     */
    int encode(byte[] dst, int dstIndex);

    /**
     * Returns the size in bytes that this object will occupy when encoded.
     *
     * @return the encoded size
     */
    int size();

   * @param encoded The serialized trie.
   * @param start An index in the encoded serialized trie to begin reading characters from.
   * @param builder A map builder to which all entries will be added.
   * @return The number of characters consumed from {@code encoded}.
   */
  private static int doParseTrieToBuilder(
      Deque<CharSequence> stack,
      CharSequence encoded,
      int start,

  @Test
  fun testGoogleDotComEncoding() {
    val encoded = encodeQuery("google.com", TYPE_A)
    assertThat(encoded).isEqualTo("AAABAAABAAAAAAAABmdvb2dsZQNjb20AAAEAAQ")
  }

  private fun encodeQuery(
    host: String,
    type: Int,
  ): String = DnsRecordCodec.encodeQuery(host, type).base64Url().replace("=", "")

  @Test
  fun testGoogleDotComEncodingWithIPv6() {
    val encoded = encodeQuery("google.com", TYPE_AAAA)