internal constructor(tls: Boolean) {
      this.tls = tls
    }

    constructor(connectionSpec: ConnectionSpec) {
      this.tls = connectionSpec.isTls
      this.cipherSuites = connectionSpec.cipherSuitesAsString
      this.tlsVersions = connectionSpec.tlsVersionsAsString
      this.supportsTlsExtensions = connectionSpec.supportsTlsExtensions
    }

    fun allEnabledCipherSuites() =
      apply {

    val allCipherSuites =
      ConnectionSpec.Builder(ConnectionSpec.MODERN_TLS)
        .allEnabledCipherSuites()
        .build()
    val allTlsVersions =
      ConnectionSpec.Builder(ConnectionSpec.MODERN_TLS)
        .allEnabledTlsVersions()
        .build()
    val set: MutableSet<Any> = CopyOnWriteArraySet()
    assertThat(set.add(ConnectionSpec.MODERN_TLS)).isTrue()

  }

  private fun makeClient(
    connectionSpec: ConnectionSpec? = null,
    tlsVersion: TlsVersion? = null,
    cipherSuites: List<CipherSuite>? = null,
  ): OkHttpClient {
    return this.client.newBuilder()
      .apply {
        if (connectionSpec != null) {
          connectionSpecs(
            listOf(
              ConnectionSpec.Builder(connectionSpec)
                .apply {

  }

  @Test
  fun connectionSpec() {
    var connectionSpec: ConnectionSpec = ConnectionSpec.RESTRICTED_TLS
    connectionSpec = ConnectionSpec.MODERN_TLS
    connectionSpec = ConnectionSpec.COMPATIBLE_TLS
    connectionSpec = ConnectionSpec.CLEARTEXT
    val tlsVersions: List<TlsVersion>? = connectionSpec.tlsVersions
    val cipherSuites: List<CipherSuite>? = connectionSpec.cipherSuites

  return Client(
    userAgent = "OkHttp",
    version = OkHttp.VERSION,
    enabled =
      ConnectionSpec.MODERN_TLS.cipherSuites!!.map {
        ianaSuites.fromJavaName(it.javaName)
      },
    supported =
      ConnectionSpec.COMPATIBLE_TLS.cipherSuites!!.map {
        ianaSuites.fromJavaName(it.javaName)
      },
  )
}

fun historicOkHttp(version: String): Client {
  val enabled =

        val connectionSpec = connectionSpecs[tlsEquipPlan.connectionSpecIndex]

        // Figure out the next connection spec in case we need a retry.
        retryTlsConnection = tlsEquipPlan.nextConnectionSpec(connectionSpecs, sslSocket)

        connectionSpec.apply(sslSocket, isFallback = tlsEquipPlan.isTlsFallback)
        connectTls(sslSocket, connectionSpec)
        user.secureConnectEnd(handshake)

    socket.enabledCipherSuites = arrayOf("SSL_A", "SSL_B", "SSL_C")
    val connectionSpec =
      ConnectionSpec.Builder(true)
        .tlsVersions(TlsVersion.TLS_1_0)
        .cipherSuites("TLS_A", "TLS_C", "TLS_E")
        .build()
    applyConnectionSpec(connectionSpec, socket, false)
    assertArrayEquals(arrayOf("TLS_A", "TLS_C"), socket.enabledCipherSuites)
  }

  @Test

 * available in JDK11 or Conscrypt.
 */
private val TLS_13 =
  ConnectionSpec.Builder(true)
    .cipherSuites(*TLS13_CIPHER_SUITES.toTypedArray())
    .tlsVersions(TlsVersion.TLS_1_3)
    .build()

private val TLS_12 =
  ConnectionSpec.Builder(ConnectionSpec.RESTRICTED_TLS)
    .tlsVersions(TlsVersion.TLS_1_2)
    .build()

private fun testClient(
  urls: List<String>,

  }

  @Test fun someFallbacksSupported() {
    val sslV3 =
      ConnectionSpec.Builder(ConnectionSpec.MODERN_TLS)
        .tlsVersions(TlsVersion.SSL_3_0)
        .build()
    val routePlanner = factory.newRoutePlanner(client)
    val route = factory.newRoute()
    val connectionSpecs = listOf(ConnectionSpec.MODERN_TLS, ConnectionSpec.COMPATIBLE_TLS, sslV3)
    val enabledSocketTlsVersions =
      arrayOf(

internal fun cacheGet(
  cache: Cache,
  request: Request,
): Response? = cache.get(request)

internal fun applyConnectionSpec(
  connectionSpec: ConnectionSpec,
  sslSocket: SSLSocket,
  isFallback: Boolean,
) = connectionSpec.apply(sslSocket, isFallback)

internal fun ConnectionSpec.effectiveCipherSuites(socketEnabledCipherSuites: Array<String>): Array<String> {
  return if (cipherSuitesAsString != null) {