server.enqueue(MockResponse())
    val serverCertificate =
      HeldCertificate
        .Builder()
        .commonName("localhost") // Unusued for hostname verification.
        .addSubjectAlternativeName("wronghostname")
        .build()
    val serverCertificates =
      HandshakeCertificates
        .Builder()
        .heldCertificate(serverCertificate)
        .build()
    val clientCertificates =