serverSocket.setReceiveBufferSize(SOCKET_BUFFER_SIZE)
          return serverSocket
        }
      }
    client =
      clientTestRule
        .newClientBuilder()
        .socketFactory(
          object : DelegatingSocketFactory(getDefault()) {
            @Throws(IOException::class)
            override fun configureSocket(socket: Socket): Socket {
              socket.setSendBufferSize(SOCKET_BUFFER_SIZE)