}

    fun androidSdkVersion(): Int? =
      if (Platform.isAndroid) {
        Build.VERSION.SDK_INT
      } else {
        null
      }

    fun localhostHandshakeCertificates(): HandshakeCertificates =
      when {
        isBouncyCastle() -> localhostHandshakeCertificatesWithRsa2048
        else -> localhost()
      }

    val isAndroid: Boolean

  @RegisterExtension
  @JvmField
  val clientTestRule = OkHttpClientTestRule()

  @RegisterExtension
  @JvmField
  var platform = PlatformRule()

  private val handshakeCertificates = platform.localhostHandshakeCertificates()

  /** Ciphers in order we observed directly on the socket. */
  private lateinit var handshakeEnabledCipherSuites: List<String>

  /** Ciphers in order we observed on sslSocketFactory defaults. */

  val platform = PlatformRule()

  @RegisterExtension
  val clientTestRule = OkHttpClientTestRule()

  @StartStop
  private val server = MockWebServer()

  private val handshakeCertificates = platform.localhostHandshakeCertificates()
  private val logRecorder =
    HttpLoggingInterceptorTest.LogRecorder(
      prefix = Regex("""\[\d+ ms] """),
    )
  private val loggingEventListenerFactory = LoggingEventListener.Factory(logRecorder)

  @StartStop
  val server1 = MockWebServer()

  @StartStop
  val server2 = MockWebServer()

  private var eventRecorder = EventRecorder()

  private val handshakeCertificates = platform.localhostHandshakeCertificates()

  val dns = FakeDns()

  val ipv4 = InetAddress.getByName("203.0.113.1")
  val ipv6 = InetAddress.getByName("2001:db8:ffff:ffff:ffff:ffff:ffff:1")

  val refusedStream =
    MockResponse

  val platform = PlatformRule()

  @RegisterExtension
  @JvmField
  var clientTestRule = OkHttpClientTestRule()

  private val eventRecorder = EventRecorder()
  private val handshakeCertificates = platform.localhostHandshakeCertificates()

  private var client =
    clientTestRule
      .newClientBuilder()
      .eventListenerFactory(clientTestRule.wrap(eventRecorder))
      .build()

  @StartStop

  @RegisterExtension
  val clientTestRule: OkHttpClientTestRule = OkHttpClientTestRule()

  @StartStop
  private val server = MockWebServer()

  private val handshakeCertificates = platform.localhostHandshakeCertificates()
  private var client: OkHttpClient = clientTestRule.newClient()

  @Test
  fun connectionsAreReused() {
    server.enqueue(MockResponse(body = "a"))
    server.enqueue(MockResponse(body = "b"))

          .protocols(listOf(protocol, Protocol.HTTP_1_1))
          .build()
      server.protocols = client.protocols
    }
  }

  private fun enableTls() {
    val handshakeCertificates = platform.localhostHandshakeCertificates()
    client =
      client
        .newBuilder()
        .sslSocketFactory(
          handshakeCertificates.sslSocketFactory(),
          handshakeCertificates.trustManager,
        ).build()

    assertThat(server.protocols.size).isEqualTo(1)
    assertThat(server.protocols[0]).isEqualTo(Protocol.H2_PRIOR_KNOWLEDGE)
  }

  @Test
  fun https() {
    val handshakeCertificates = platform.localhostHandshakeCertificates()
    server.useHttps(handshakeCertificates.sslSocketFactory(), false)
    server.enqueue(MockResponse().setBody("abc"))
    val url = server.url("/")

  @RegisterExtension
  var testLogHandler = TestLogHandler(OkHttpClient::class.java)

  @StartStop
  private val webServer = MockWebServer()

  private val handshakeCertificates = platform.localhostHandshakeCertificates()
  private val clientListener = WebSocketRecorder("client")
  private val serverListener = WebSocketRecorder("server")
  private val random = Random(0)
  private var client =
    clientTestRule

  @StartStop
  private val server = MockWebServer()

  // Can't use test instance with overrides
  private var client = OkHttpClient.Builder().build()

  private val handshakeCertificates = platform.localhostHandshakeCertificates()

  /**
   * Test that we can override in a Application Interceptor, purely by seeing that the chain reports
   * the override in a Network Interceptor.
   */
  @Test