nodejs/test/parallel/test-dgram-listen-after-bind.js

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'use strict';
require('../common');
const common = require('../common');
const assert = require('assert');
const dgram = require('dgram');

const socket = dgram.createSocket('udp4');

socket.bind();

let fired = false;
const timer = setTimeout(() => {
  socket.close();
}, 100);

socket.on('listening', common.mustCall(() => {
  clearTimeout(timer);
  fired = true;
  socket.close();
}));

socket.on('close', common.mustCall(() => {
  assert(fired, 'listening should fire after bind');
}));