public static void destroyServer(ServerConfig serverConfig) {
        try {
            Server server = serverConfig.getServer();
            if (server != null) {
                serverConfig.setServer(null);
                SERVER_MAP.remove(Integer.toString(serverConfig.getPort()));
                server.destroy();
            }
        } catch (Exception e) {
            LOGGER.error(LogCodes.getLog(LogCodes.ERROR_DESTROY_SERVER, serverConfig.getPort()), e);
        }
    }
@Test
    public void destroyServer() {
        ServerConfig serverConfig = new ServerConfig().setProtocol("test").setPort(1234);
        Server server = serverConfig.buildIfAbsent();
        Assert.assertNotNull(server);
        Assert.assertEquals(1, ServerFactory.getServers().size());
        serverConfig.destroy();
        Assert.assertEquals(0, ServerFactory.getServers().size());
        Assert.assertNull(serverConfig.getServer());
    }