HTTP_1_0.protocol -> HTTP_1_0
        HTTP_1_1.protocol -> HTTP_1_1
        H2_PRIOR_KNOWLEDGE.protocol -> H2_PRIOR_KNOWLEDGE
        HTTP_2.protocol -> HTTP_2
        SPDY_3.protocol -> SPDY_3
        QUIC.protocol -> QUIC
        else -> {
          // Support HTTP3 draft like h3-29
          if (protocol.startsWith(HTTP_3.protocol)) HTTP_3 else throw IOException("Unexpected protocol: $protocol")
        }

      assertThat(response.protocol).isEqualTo(Protocol.HTTP_2)
    }
  }

  @Test
  fun testOkHttpSecureProxiedHttp1() {
    testRequest {
      val client =
        OkHttpClient.Builder()
          .trustMockServer()
          .proxy(Proxy(Proxy.Type.HTTP, it.remoteAddress()))
          .protocols(listOf(Protocol.HTTP_1_1))
          .build()

      val response =

        connectTls(sslSocket, connectionSpec)
        user.secureConnectEnd(handshake)
      } else {
        socket = rawSocket
        protocol =
          when {
            Protocol.H2_PRIOR_KNOWLEDGE in route.address.protocols -> Protocol.H2_PRIOR_KNOWLEDGE
            else -> Protocol.HTTP_1_1
          }
      }

      val connection =
        RealConnection(
          taskRunner = taskRunner,

      OkHttpClient.Builder()
        .protocols(protocols as List<Protocol>)
    }.also { expected ->
      assertThat(expected.message).isEqualTo("protocols must not contain null")
    }
  }

  @Test fun spdy3IsRemovedFromProtocols() {
    val protocols =
      mutableListOf(
        Protocol.HTTP_1_1,
        Protocol.SPDY_3,
      )
    val client =
      OkHttpClient.Builder()

   */
  var protocols: List<Protocol> = immutableListOf(Protocol.HTTP_2, Protocol.HTTP_1_1)
    set(value) {
      val protocolList = value.toImmutableList()
      require(Protocol.H2_PRIOR_KNOWLEDGE !in protocolList || protocolList.size == 1) {
        "protocols containing h2_prior_knowledge cannot use other protocols: $protocolList"
      }

    clientTestRule.recordTaskRunner = true
    return clientTestRule
  }

  fun setUp(
    protocol: Protocol,
    server: MockWebServer,
  ) {
    this.server = server
    this.protocol = protocol
    platform.assumeNotOpenJSSE()
    if (protocol === Protocol.HTTP_2) {
      platform.assumeHttp2Support()
      server.useHttps(handshakeCertificates.sslSocketFactory())
      client =

   */
  private fun enableProtocol(protocol: Protocol) {
    enableTls()
    client =
      client.newBuilder()
        .protocols(listOf(protocol, Protocol.HTTP_1_1))
        .build()
    server.protocols = client.protocols
  }

  private fun enableTls() {
    client =
      client.newBuilder()
        .sslSocketFactory(

  // * must start and end with an alphanumeric character.
  // Default is empty string.
  optional string name = 1;

  // protocol represents the IP protocol for this port.
  // Must be UDP, TCP, or SCTP.
  // Default is TCP.
  optional string protocol = 2;

  // port represents the port number of the endpoint.
  // If this is not specified, ports are not restricted and must be

  body.close()
}

fun Response.commonToString(): String = "Response{protocol=$protocol, code=$code, message=$message, url=${request.url}}"

fun Response.Builder.commonRequest(request: Request) =
  apply {
    this.request = request
  }

fun Response.Builder.commonProtocol(protocol: Protocol) =
  apply {
    this.protocol = protocol
  }

fun Response.Builder.commonCode(code: Int) =
  apply {

  }

  override fun callConnectEnd(
    route: Route,
    protocol: Protocol?,
  ) {
  }

  override fun connectionConnectEnd(
    connection: Connection,
    route: Route,
  ) {
  }

  override fun connectFailed(
    route: Route,
    protocol: Protocol?,
    e: IOException,
  ) {
  }

  override fun connectionAcquired(connection: Connection) {
  }