Function test

test/parallel/test-tls-honorcipherorder.js:47–83

(honorCipherOrder, clientCipher, expectedCipher, defaultCiphers)

};

function test(honorCipherOrder, clientCipher, expectedCipher, defaultCiphers) {
  const soptions = {
    secureProtocol: SSL_Method,
    key: fixtures.readKey('agent2-key.pem'),
    cert: fixtures.readKey('agent2-cert.pem'),
    ciphers: config.serverCiphers,
    honorCipherOrder: honorCipherOrder,
  };

  const server = tls.createServer(soptions, mustCall(function(clearTextStream) {
    // End socket to send CLOSE_NOTIFY and TCP FIN packet, otherwise
    // it may hang for ~30 seconds in FIN_WAIT_1 state (at least on macOS).
    clearTextStream.end();
  }));
  server.listen(0, localhost, mustCall(function() {
    const coptions = {
      rejectUnauthorized: false,
      secureProtocol: SSL_Method
    };
    if (clientCipher) {
      coptions.ciphers = clientCipher;
    }
    const port = this.address().port;
    const savedDefaults = tls.DEFAULT_CIPHERS;
    tls.DEFAULT_CIPHERS = defaultCiphers || savedDefaults;
    const client = tls.connect(port, localhost, coptions, mustCall(function() {
      const cipher = client.getCipher();
      client.end();
      server.close();
      const msg = util.format(
        'honorCipherOrder=%j, clientCipher=%j, expect=%j, got=%j',
        honorCipherOrder, clientCipher, expectedCipher, cipher.name);
      assert.strictEqual(cipher.name, expectedCipher, msg);
    }));
    tls.DEFAULT_CIPHERS = savedDefaults;
  }));
}

// Client explicitly has the preference of cipher suites, not the default.
test(false, config.clientPreferenceCiphers, config.clientPreferredCipher);