'use strict'; const common = require('../common'); const net = require('net'); const server = net.createServer().listen(0, connectToServer); function connectToServer() { const client = net.createConnection(this.address().port, () => { common.expectsError(() => client.write(1337), { code: 'ERR_INVALID_ARG_TYPE', type: TypeError }); client.end(); }) .on('end', () => server.close()); }