test/parallel/test-tls-secure-session.js

'use strict';
const common = require('../common');
if (!common.hasCrypto)
  common.skip('missing crypto');
const fixtures = require('../common/fixtures');
const assert = require('assert');
const tls = require('tls');

const options = {
  key: fixtures.readKey('agent1-key.pem'),

  // NOTE: Certificate Common Name is 'agent1'
  cert: fixtures.readKey('agent1-cert.pem'),

  // NOTE: TLS 1.3 creates new session ticket **after** handshake so
  // `getSession()` output will be different even if the session was reused
  // during the handshake.
  secureProtocol: 'TLSv1_2_method'
};

const server = tls.createServer(options, common.mustCall((socket) => {
  socket.end();
})).listen(0, common.mustCall(() => {
  let connected = false;
  let session = null;

  const client = tls.connect({
    rejectUnauthorized: false,
    port: server.address().port,
  }, common.mustCall(() => {
    assert(!connected);
    assert(!session);

    connected = true;
  }));

  client.on('session', common.mustCall((newSession) => {
    assert(connected);
    assert(!session);

    session = newSession;

    client.end();
    server.close();
  }));
}));