// Decode
        FileRenameInformation2 decoded = new FileRenameInformation2();
        int bytesRead = decoded.decode(buffer, 0, bytesWritten);

        // Verify round trip
        assertEquals(bytesWritten, bytesRead);
        assertEquals(original.size(), decoded.size());
        assertEquals(original.getFileInformationLevel(), decoded.getFileInformationLevel());
    }

    @Test

# JSON Compatible Encoder

Існують випадки, коли вам може знадобитися перетворити тип даних (наприклад, модель Pydantic) в щось сумісне з JSON (наприклад, `dict`, `list`, і т. д.).

Наприклад, якщо вам потрібно зберегти це в базі даних.

Для цього, **FastAPI** надає `jsonable_encoder()` функцію.

## Використання `jsonable_encoder`

Давайте уявимо, що у вас є база даних `fake_db`, яка приймає лише дані, сумісні з JSON.

/**
 * Interface for objects that can be decoded from a byte buffer.
 * This interface provides methods for deserializing data from SMB protocol messages.
 *
 * @author mbechler
 */
public interface Decodable {

    /**
     * Decode data from a byte buffer
     *
     * @param buffer the byte buffer containing the data to decode
     * @param bufferIndex the starting index in the buffer

        // Decode from buffer
        NdrBuffer decodeBuffer = new NdrBuffer(buffer, 0);
        lsarpc.LsarTranslatedName decodedName = new lsarpc.LsarTranslatedName();
        decodedName.decode(decodeBuffer);

        // Verify the decoded data matches
        assertEquals(translatedName.sid_type, decodedName.sid_type);

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

            assertEquals(encoded, decoded);
            assertArrayEquals(originalHashAlgos, decodedContext.getHashAlgos());
            assertArrayEquals(originalSalt, decodedContext.getSalt());
        }

        @Test
        @DisplayName("Should encode and decode correctly with multiple hash algorithms and large salt")

            }
        }
        return u;
    }

    /**
     * Decodes a URL as a name using appropriate character encoding.
     * Handles encoding detection from parent URLs and configuration settings.
     *
     * @param url the URL to decode
     * @param escapePlus whether to escape plus signs before decoding
     * @return the decoded URL name, or original URL if decoding fails
     */

            assertEquals(8, encoded);

            // Decode into new instance
            FileEndOfFileInformation decoded = new FileEndOfFileInformation();
            int decodedBytes = decoded.decode(buffer, 0, buffer.length);

            assertEquals(8, decodedBytes);

            // Verify values match
            assertEquals(original.toString(), decoded.toString());
        }
    }

    @Test

    }
  }

  private static void testEncoding(BaseEncoding encoding, String decoded, String encoded) {
    testEncodes(encoding, decoded, encoded);
    testDecodes(encoding, encoded, decoded);
  }

  private static void testEncodes(BaseEncoding encoding, String decoded, String encoded) {
    assertThat(encoding.encode(decoded.getBytes(UTF_8))).isEqualTo(encoded);
  }

  private static void testEncodesWithOffset(

     */
    public void enc_ndr_small(final int s) {
        buf[index] = (byte) (s & 0xFF);
        advance(1);
    }

    /**
     * Decodes a small integer (1 byte) from NDR format.
     *
     * @return the decoded small integer value
     */
    public int dec_ndr_small() {
        final int val = buf[index] & 0xFF;
        advance(1);
        return val;
    }

    /**

        return permission;
    }

    /**
     * Decodes a search role format string back to a permission string.
     * Reverses the encoding process to restore original permission format.
     *
     * @param value the encoded permission string to decode
     * @return the decoded permission string, or null if the input is blank or invalid
     */
    public String decode(final String value) {
        if (StringUtil.isBlank(value)) {