|-----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 javax.net.ssl.SSLPeerUnverifiedException
import javax.net.ssl.SSLSocket
import javax.net.ssl.TrustManagerFactory
import javax.net.ssl.X509TrustManager
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.junit5.StartStop
import okhttp3.Cache
import okhttp3.Call
import okhttp3.CallEvent.CallEnd
import okhttp3.CallEvent.CallStart
import okhttp3.CallEvent.ConnectEnd

import java.util.concurrent.Executors
import java.util.concurrent.LinkedBlockingQueue
import java.util.concurrent.TimeUnit
import kotlin.test.assertFailsWith
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.junit5.StartStop
import okhttp3.CallEvent.CallEnd
import okhttp3.CallEvent.CallStart
import okhttp3.CallEvent.ConnectEnd
import okhttp3.CallEvent.ConnectStart

import okhttp3.tls.HandshakeCertificates
import okhttp3.tls.internal.TlsUtil.localhost

/**
 * OkHttp is usually tested with functional tests: these use public APIs to confirm behavior against
 * MockWebServer. In cases where logic is particularly tricky, we use unit tests. This class makes
 * it easy to get sample values to use in such tests.
 *

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

  }

  /** 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> {

        implementation(projects.okhttpTls)
        implementation(projects.okhttpUrlconnection)
        implementation(projects.mockwebserver3)
        implementation(projects.mockwebserver3Junit4)
        implementation(projects.mockwebserver3Junit5)
        implementation(projects.mockwebserver)
        implementation(projects.loggingInterceptor)
        implementation(projects.okhttpBrotli)

    }

    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 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

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