test/parallel/test-tls-ip-servername-deprecation.js


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'use strict';

const common = require('../common');
const fixtures = require('../common/fixtures');

if (!common.hasCrypto)
  common.skip('missing crypto');

const tls = require('tls');

// This test expects `tls.connect()` to emit a warning when
// `servername` of options is an IP address.
common.expectWarning(
  'DeprecationWarning',
  'Setting the TLS ServerName to an IP address is not permitted by ' +
  'RFC 6066. This will be ignored in a future version.',
  'DEP0123'
);

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

  const server = tls.createServer(options, function(s) {
    s.end('hello');
  }).listen(0, function() {
    const client = tls.connect({
      port: this.address().port,
      rejectUnauthorized: false,
      servername: '127.0.0.1',
    }, function() {
      client.end();
    });
  });

  server.on('connection', common.mustCall(function(socket) {
    server.close();
  }));
}