?: throw TestAbortedException()

    serverIpv4 = MockWebServer()
    serverIpv4.start(localhostIpv4, 0) // Pick any available port.

    serverIpv6 = MockWebServer()
    serverIpv6.start(localhostIpv6, serverIpv4.port) // Pick the same port as the IPv4 server.

    dnsResults =
      listOf(
        localhostIpv4,
        localhostIpv6,
      )

    client =