client =
      clientTestRule.newClientBuilder()
        .socketFactory(
          object : DelegatingSocketFactory(SocketFactory.getDefault()) {
            @Throws(IOException::class)
            override fun configureSocket(socket: Socket): Socket {
              socket.sendBufferSize = SOCKET_BUFFER_SIZE
              socket.receiveBufferSize = SOCKET_BUFFER_SIZE
              return socket
            }
          },
        )