node/test/parallel/test-net-server-reset.js

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

const sockets = [];

const server = net.createServer(common.mustCallAtLeast((c) => {
  c.on('close', common.mustCall());

  sockets.push(c);

  if (sockets.length === 2) {
    assert.strictEqual(server.close(), server);
    sockets.forEach((c) => c.resetAndDestroy());
  }
}));

server.on('close', common.mustCall());

assert.strictEqual(server, server.listen(0, common.mustCall(() => {
  net.createConnection(server.address().port)
    .on('error', common.mustCall((error) => {
      assert.strictEqual(error.code, 'ECONNRESET');
    }));
  net.createConnection(server.address().port)
    .on('error', common.mustCall((error) => {
      assert.strictEqual(error.code, 'ECONNRESET');
    }));
})));