encodedUsername, fragment, host, password, pathSegments, pathSize, port, query,
   queryParameterNames, querySize, scheme, username
 * **MockResponse**: headers, http2ErrorCode, socketPolicy, status, trailers
 * **MockWebServer**: bodyLimit, port, protocolNegotiationEnabled, protocols, requestCount,
   serverSocketFactory
 * **MultipartBody.Part**: body, headers
 * **MultipartBody.**: boundary, parts, size, type

import okio.BufferedSink
import okio.BufferedSource
import okio.buffer
import okio.sink
import okio.source
import okio.use

/**
 * A limited implementation of SOCKS Protocol Version 5, intended to be similar to MockWebServer.
 * See [RFC 1928](https://www.ietf.org/rfc/rfc1928.txt).
 */
class SocksProxy {
  private val executor = Executors.newCachedThreadPool(threadFactory("SocksProxy"))
  private var serverSocket: ServerSocket? = null

        |-----END PRIVATE KEY-----
        """.trimMargin())
    val handshakeCertificates = HandshakeCertificates.Builder()
        .heldCertificate(heldCertificate)
        .build()
    val server = MockWebServer()
    server.useHttps(handshakeCertificates.sslSocketFactory(), false)
    ```

    Get these strings with `HeldCertificate.certificatePem()` and `privateKeyPkcs8Pem()`.

import assertk.assertions.isLessThanOrEqualTo
import assertk.assertions.isSameInstanceAs
import assertk.assertions.matches
import java.net.UnknownHostException
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.junit5.StartStop
import okhttp3.HttpUrl
import okhttp3.Interceptor
import okhttp3.MediaType
import okhttp3.MediaType.Companion.toMediaType
import okhttp3.OkHttpClient

  }

  /** Returns the negotiated protocol, or null if no protocol was negotiated. */
  open fun getSelectedProtocol(sslSocket: SSLSocket): String? = null

  /** For MockWebServer. This returns the inbound SNI names. */
  @IgnoreJRERequirement // This function is overridden to require API >= 24.
  open fun getHandshakeServerNames(sslSocket: SSLSocket): List<String> {

    }

    fun assumeNotCorretto() {
      assumeTrue(getPlatformSystemProperty() != CORRETTO_PROPERTY)
    }

    fun assumeNotBouncyCastle() {
      // Most failures are with MockWebServer
      // org.bouncycastle.tls.TlsFatalAlertReceived: handshake_failure(40)
      //        at org.bouncycastle.tls.TlsProtocol.handleAlertMessage(TlsProtocol.java:241)

import java.util.concurrent.atomic.AtomicReference
import javax.net.ssl.HostnameVerifier
import kotlin.test.assertFailsWith
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.RecordedRequest
import mockwebserver3.SocketEffect.ShutdownConnection
import mockwebserver3.junit5.StartStop
import okhttp3.Cache.Companion.key
import okhttp3.Headers.Companion.headersOf

import kotlin.test.assertFailsWith
import mockwebserver3.Dispatcher
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.PushPromise
import mockwebserver3.QueueDispatcher
import mockwebserver3.RecordedRequest
import mockwebserver3.SocketEffect.CloseStream
import mockwebserver3.SocketEffect.ShutdownConnection
import mockwebserver3.SocketEffect.Stall
import mockwebserver3.junit5.StartStop

import javax.net.ssl.SSLSocketFactory
import kotlin.test.assertFailsWith
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.QueueDispatcher
import mockwebserver3.RecordedRequest
import mockwebserver3.SocketEffect.CloseSocket
import mockwebserver3.SocketEffect.ShutdownConnection
import mockwebserver3.SocketEffect.Stall
import mockwebserver3.junit5.StartStop
import okhttp3.CallEvent.CallEnd

      socket: BufferedSocket,
      peerName: String,
    ) = apply {
      this.socket = socket
      this.connectionName =
        when {
          client -> "$okHttpName $peerName"
          else -> "MockWebServer $peerName"
        }
    }

    fun listener(listener: Listener) =
      apply {
        this.listener = listener
      }

    fun pushObserver(pushObserver: PushObserver) =
      apply {