val call = client.newCall(Request.Builder().url(server.url("/")).build())
    assertFailsWith<SSLPeerUnverifiedException> {
      call.execute()
    }
  }

  @Test
  fun invalidClientAuthFails() {
    // Fails with https://github.com/square/okhttp/issues/4598
    // StreamReset stream was reset: PROT...
    val clientCert2 =
      HeldCertificate.Builder()
        .serialNumber(4L)