// Test that unicode strings are properly encoded/decoded
        String unicodeString = "日本語テスト";
        String encoded = BaseEncoding.base64().encode(unicodeString.getBytes(StandardCharsets.UTF_8));
        String decoded = new String(BaseEncoding.base64().decode(encoded), StandardCharsets.UTF_8);

        assertEquals(unicodeString, decoded);
    }

    public void test_special_characters_base64_encoding() {

            int encoded = originalContext.encode(buffer, 0);
            assertEquals(2 + (2 * maxCiphers), encoded);

            EncryptionNegotiateContext decodedContext = new EncryptionNegotiateContext();
            int decoded = decodedContext.decode(buffer, 0, encoded);

            assertEquals(encoded, decoded);
            assertArrayEquals(ciphers, decodedContext.getCiphers());

    assertThat(encoding.encode(decoded.getBytes(UTF_8), offset, len)).isEqualTo(encoded);
  }

  private static void testDecodes(BaseEncoding encoding, String encoded, String decoded) {
    assertThat(encoding.canDecode(encoded)).isTrue();
    assertThat(encoding.decode(encoded)).isEqualTo(decoded.getBytes(UTF_8));
  }

        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
     */

            int encoded = context.encode(largeBuffer, 0);
            assertEquals(2 + 200, encoded); // 2 for count + 100*2 for ciphers

            EncryptionNegotiateContext decoded = new EncryptionNegotiateContext();
            try {
                int decodedSize = decoded.decode(largeBuffer, 0, encoded);
                assertEquals(encoded, decodedSize);

 *
 *  * 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'.

        // Encode
        byte[] buffer = new byte[8];
        int encoded = original.encode(buffer, 0);
        assertEquals(8, encoded);

        // Decode
        FileEndOfFileInformation decoded = new FileEndOfFileInformation();
        int decodedBytes = decoded.decode(buffer, 0, 8);
        assertEquals(8, decodedBytes);

        byte[] encoded = AvPairs.encode(pairs);

        assertNotNull(encoded, "Encoded data should not be null");
        assertEquals(4, encoded.length, "Should only have EOL (4 bytes)");
        assertEquals(AvPair.MsvAvEOL, SMBUtil.readInt2(encoded, 0), "Should be EOL");
        assertEquals(0, SMBUtil.readInt2(encoded, 2), "EOL length should be 0");
    }

    /**
     * Test round-trip encoding and decoding

        // Encode multiple times
        byte[] buffer1 = new byte[100];
        byte[] buffer2 = new byte[100];
        byte[] buffer3 = new byte[100];

        int encoded1 = request.encode(buffer1, 0);
        int encoded2 = request.encode(buffer2, 0);
        int encoded3 = request.encode(buffer3, 0);

        // All should produce same result
        assertEquals(encoded1, encoded2);

				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))