):
    current_username_bytes = credentials.username.encode("utf8")
    correct_username_bytes = b"stanleyjobson"
    is_correct_username = secrets.compare_digest(
        current_username_bytes, correct_username_bytes
    )
    current_password_bytes = credentials.password.encode("utf8")
    correct_password_bytes = b"swordfish"
    is_correct_password = secrets.compare_digest(

from fastapi import FastAPI, Request
from fastapi.encoders import jsonable_encoder
from fastapi.exceptions import RequestValidationError
from fastapi.responses import JSONResponse
from pydantic import BaseModel

app = FastAPI()


@app.exception_handler(RequestValidationError)
async def validation_exception_handler(request: Request, exc: RequestValidationError):
    return JSONResponse(
        status_code=422,

## Convert any Data to JSON-compatible { #convert-any-data-to-json-compatible }

To convert any data to JSON-compatible, read the docs for [Tutorial - JSON Compatible Encoder](../tutorial/encoder.md){.internal-link target=_blank}.

## OpenAPI Metadata - Docs { #openapi-metadata-docs }

 *  Fix: Don't throw when converting an `HttpUrl` to a `java.net.URI`.
    Previously URLs with special characters like `|` and `[` would break when
    subjected to URI’s overly-strict validation.
 *  Fix: Don't re-encode `+` as `%20` in encoded URL query strings. OkHttp
    prefers `%20` when doing its own encoding, but will retain `+` when that is
    provided.
 *  Fix: Enforce that callers call `WebSocket.close()` on IO errors. Error

По умолчанию **FastAPI** автоматически преобразует возвращаемое значение в JSON с помощью `jsonable_encoder`, как описано в [JSON кодировщик](../tutorial/encoder.md){.internal-link target=_blank}.

Затем "под капотом" эти данные, совместимые с JSON (например `dict`), помещаются в `JSONResponse`, который используется для отправки ответа клиенту.

    }

    @Test
    @DisplayName("Test encode without andx command")
    void testEncodeWithoutAndx() {
        testBlock = new TestAndXServerMessageBlock(mockConfig, (byte) 0x25);
        byte[] buffer = new byte[1024];

        int length = testBlock.encode(buffer, 0);

        assertTrue(length > 0);

	IV        []byte
	Nonce     []byte
	Bytes     []byte
}

// UnmarshalJSON parses the given text as JSON-encoded
// ciphertext.
//
// UnmarshalJSON provides backward-compatible unmarsahaling
// of existing ciphertext. In the past, ciphertexts were
// JSON-encoded. Now, ciphertexts are binary-encoded.
// Therefore, there is no MarshalJSON implementation.
func (c *ciphertext) UnmarshalJSON(text []byte) error {
	const (

        assertArrayEquals(rawBytes, avTargetName.getRaw(), "Raw bytes should match the input");
    }

    /**
     * Test constructor with a target name string.
     * Verifies that the string is correctly encoded to UTF-16LE bytes and stored.
     */
    @Test
    void testConstructorWithString() {
        String targetName = "AnotherTargetName";
        AvTargetName avTargetName = new AvTargetName(targetName);

        byte[] buffer = new byte[256];
        int encodedSize = context.encode(buffer, 0);

        assertTrue(encodedSize > 8); // Minimum size: count + padding + flags + algorithms
        assertEquals(context.size(), encodedSize);
    }

    @Test
    @DisplayName("Test context decoding")
    public void testDecoding() throws SMBProtocolDecodingException {
        // Encode first
        byte[] buffer = new byte[256];

    @Override
    protected SortedMap<String, String> delegate() {
      return delegate;
    }
  }

  private static String encode(String str) {
    return BaseEncoding.base64().encode(str.getBytes(UTF_8));
  }

  private static final Function<String, String> DECODE_FUNCTION =
      new Function<String, String>() {
        @Override