.build()
    server.useHttps(serverCertificates.sslSocketFactory())
    executeSynchronously("/")
      .assertFailureMatches("(?s)Hostname localhost not verified.*")
  }

  /**
   * Anonymous cipher suites were disabled in OpenJDK because they're rarely used and permit
   * man-in-the-middle attacks. https://bugs.openjdk.java.net/browse/JDK-8212823
   */
  @Test
  fun anonCipherSuiteUnsupported() {

    server.protocolNegotiationEnabled = true
    server.protocols = client.protocols
  }

  /**
   * Used during tests that involve TLS connection fallback attempts. OkHttp includes the
   * TLS_FALLBACK_SCSV cipher on fallback connections. See [FallbackTestClientSocketFactory]
   * for details.
   */
  private fun suppressTlsFallbackClientSocketFactory() = FallbackTestClientSocketFactory(handshakeCertificates.sslSocketFactory())