}

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

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

    val isAndroid: Boolean

class JSSETest {
  @JvmField @RegisterExtension
  var platform = PlatformRule()

  @JvmField @RegisterExtension
  val clientTestRule = OkHttpClientTestRule()

  private val handshakeCertificates = platform.localhostHandshakeCertificates()

  var client = clientTestRule.newClient()

  @StartStop
  private val server = MockWebServer()

  @BeforeEach
  fun setUp() {

  val clientTestRule = OkHttpClientTestRule()

  @StartStop
  private val server = MockWebServer()

  private var eventRecorder = EventRecorder()
  private val handshakeCertificates = platform.localhostHandshakeCertificates()
  private var client =
    clientTestRule
      .newClientBuilder()
      .eventListenerFactory(clientTestRule.wrap(eventRecorder))
      .build()

  fun executeAndCheckUpgrade(request: Request) {

  @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()

  @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

  val clientTestRule = OkHttpClientTestRule()

  @StartStop
  private val server = MockWebServer()

  private val eventRecorder = EventRecorder()
  private val handshakeCertificates = platform.localhostHandshakeCertificates()
  private var client =
    clientTestRule
      .newClientBuilder()
      .apply {
        if (listenerInstalledOn == ListenerInstalledOn.Client) {

  // Flaky https://github.com/square/okhttp/issues/4632
  // Flaky https://github.com/square/okhttp/issues/4633
  private val handshakeCertificates: HandshakeCertificates =
    platform.localhostHandshakeCertificates()

  @StartStop
  private val server = MockWebServer()

  private lateinit var client: OkHttpClient
  private val fileSystem: FakeFileSystem = FakeFileSystem()