// Use mock server so we are strictly testing OkHttp client only in this test.
  // We should test MockWebServer later.
  @Container
  val mockServer: MockServerContainer = MockServerContainer(MOCKSERVER_IMAGE)

  val capturedOut = ByteArrayOutputStream()

  private lateinit var executor: ExecutorService

  private lateinit var client: OkHttpClient

  @BeforeEach
  fun setUp() {
    platform.assumeLoom()

        Dns.SYSTEM.lookup(server.hostName)
      }

    val client =
      clientTestRule
        .newClientBuilder()
        .sslSocketFactory(
          handshakeCertificates.sslSocketFactory(),
          handshakeCertificates.trustManager,
        ).dns(dns)
        .build()

    server.enqueue(MockResponse())

    val call =
      client.newCall(
        Request(

Puedes usar la configuración del modelo de Pydantic para `prohibir` cualquier campo `extra`:

{* ../../docs_src/header_param_models/tutorial002_an_py310.py hl[10] *}

Si un cliente intenta enviar algunos **headers extra**, recibirán un response de **error**.

Por ejemplo, si el cliente intenta enviar un header `tool` con un valor de `plumbus`, recibirán un response de **error** indicando que el parámetro de header `tool` no está permitido:

```json
{

    chmod +x /go/bin/minio

# Download mc binary and signature files
RUN curl -s -q https://dl.min.io/client/mc/release/linux-${TARGETARCH}/mc -o /go/bin/mc && \
    curl -s -q https://dl.min.io/client/mc/release/linux-${TARGETARCH}/mc.minisig -o /go/bin/mc.minisig && \
    curl -s -q https://dl.min.io/client/mc/release/linux-${TARGETARCH}/mc.sha256sum -o /go/bin/mc.sha256sum && \
    chmod +x /go/bin/mc

          throw ProtocolException("Received HTTP_PROXY_AUTH (407) code while not using proxy")
        }
        return client.proxyAuthenticator.authenticate(route, userResponse)
      }

      HTTP_UNAUTHORIZED -> return client.authenticator.authenticate(route, userResponse)

      HTTP_PERM_REDIRECT, HTTP_TEMP_REDIRECT, HTTP_MULT_CHOICE, HTTP_MOVED_PERM, HTTP_MOVED_TEMP, HTTP_SEE_OTHER -> {

 * [Autobahn Testsuite](http://autobahn.ws/testsuite/).
 */
class AutobahnTester {
  val client = OkHttpClient()

  private fun newWebSocket(
    path: String,
    listener: WebSocketListener,
  ): WebSocket {
    val request =
      Request
        .Builder()
        .url(HOST + path)
        .build()
    return client.newWebSocket(request, listener)
  }

  fun run() {
    try {

* **`300`** y superiores son para "Redirección". Los responses con estos códigos de estado pueden o no tener un body, excepto `304`, "Not Modified", que no debe tener uno.
* **`400`** y superiores son para responses de "Error del Cliente". Este es el segundo tipo que probablemente más usarías.

     *            negotiated cipher identifier
     * @param dialect
     *            SMB dialect version
     * @param encryptionKey
     *            key for client->server encryption
     * @param decryptionKey
     *            key for server->client decryption
     */
    public Smb2EncryptionContext(final int cipherId, final DialectVersion dialect, final byte[] encryptionKey, final byte[] decryptionKey) {

  @JvmField @RegisterExtension
  val clientTestRule = OkHttpClientTestRule()

  val handshakeCertificates = platform.localhostHandshakeCertificates()

  private lateinit var server: MockWebServer
  private lateinit var client: OkHttpClient

  val listener = RecordingEventListener()

  fun setUp(mode: Pair<CancelMode, ConnectionType>) {
    this.cancelMode = mode.first
    this.connectionType = mode.second

import okhttp3.Request

class PostForm {
  private val client = OkHttpClient()

  fun run() {
    val formBody =
      FormBody
        .Builder()
        .add("search", "Jurassic Park")
        .build()
    val request =
      Request(
        url = "https://en.wikipedia.org/w/index.php".toHttpUrl(),
        body = formBody,
      )

    client.newCall(request).execute().use { response ->