.tlsVersions(TlsVersion.TLS_1_2)
        .supportsTlsExtensions(true)
        .build()
    assertThat(tlsSpec.cipherSuites!!.toList())
      .containsExactly(CipherSuite.TLS_RSA_WITH_RC4_128_MD5)
    assertThat(tlsSpec.tlsVersions!!.toList())
      .containsExactly(TlsVersion.TLS_1_2)
    assertThat(tlsSpec.supportsTlsExtensions).isTrue()
  }

  @Test
  fun tlsBuilder_defaultCiphers() {