SSLHandshakeException("Certificate handshake exception").apply {
        initCause(CertificateException())
      }
    assertThat(retryTlsHandshake(exception)).isFalse()
  }

  @Test fun retryableSSLHandshakeException() {
    assertThat(retryTlsHandshake(retryableException)).isTrue()
  }

  @Test fun someFallbacksSupported() {
    val sslV3 =
      ConnectionSpec.Builder(ConnectionSpec.MODERN_TLS)