.cipherSuites(CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256)
        .tlsVersions(TlsVersion.TLS_1_2)
        .supportsTlsExtensions(false)
        .build()
    val socket = SSLSocketFactory.getDefault().createSocket() as SSLSocket
    socket.enabledCipherSuites =
      arrayOf(
        CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256.javaName,

  private lateinit var defaultSupportedCipherSuites: List<String>

  val expectedModernTls12CipherSuites =
    listOf(TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384)
  val expectedModernTls13CipherSuites = listOf(TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_AES_128_GCM_SHA256, TLS_AES_256_GCM_SHA384)

  @BeforeEach
  fun setup(server: MockWebServer) {
    this.server = server

        CipherSuite.TLS_AES_128_GCM_SHA256,
        CipherSuite.TLS_AES_256_GCM_SHA384,
        CipherSuite.TLS_CHACHA20_POLY1305_SHA256,
        // TLSv1.0, TLSv1.1, TLSv1.2.
        CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
        CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
        CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
        CipherSuite.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,

    val charset: Charset = challenge.charset
    val utf8: Challenge = challenge.withCharset(Charsets.UTF_8)
  }

  @Test
  fun cipherSuite() {
    var cipherSuite: CipherSuite = CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
    cipherSuite = CipherSuite.forJavaName("")
    val javaName: String = cipherSuite.javaName
  }

  @Test
  fun connection() {
    val connection =
      object : Connection {

    @JvmField val TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 = init("TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384", 0xc02a)

    @JvmField val TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 = init("TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256", 0xc02b)

    @JvmField val TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 = init("TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384", 0xc02c)

```java
ConnectionSpec spec = new ConnectionSpec.Builder(ConnectionSpec.MODERN_TLS)
    .tlsVersions(TlsVersion.TLS_1_2)
    .cipherSuites(
          CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
          CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
          CipherSuite.TLS_DHE_RSA_WITH_AES_128_GCM_SHA256)
    .build();

OkHttpClient client = new OkHttpClient.Builder()

    val realm: String? = challenge.realm()
    val charset: Charset = challenge.charset()
  }

  @Test @Disabled
  fun cipherSuite() {
    val cipherSuite: CipherSuite = CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
    val javaName: String = cipherSuite.javaName()
  }

  @Test @Disabled
  fun connectionSpec() {
    val connectionSpec: ConnectionSpec = ConnectionSpec.RESTRICTED_TLS

    with this limited set of cipher suites.

    ```
                                             Android
    Name                                     Version

    TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256  5.0
    TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256    5.0
    TLS_DHE_RSA_WITH_AES_128_GCM_SHA256      5.0
    TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA     4.0
    TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA     4.0