@RegisterExtension
  val platform = PlatformRule()

  @RegisterExtension
  val clientTestRule = OkHttpClientTestRule()

  @StartStop
  private val server = MockWebServer()

  private val listener = RecordingConnectionListener()
  private val handshakeCertificates = localhost()

  open val fastFallback: Boolean get() = true

  private var client: OkHttpClient =
    clientTestRule
      .newClientBuilder()