anchor.diff:  /// Responds with the database queries test to the [request].
   void _queriesTest(HttpRequest request) {
     var queries = _parseInt(request.uri.queryParameters['queries']).clamp(1, 500);
  -  Future.wait(new List.generate(queries,
  -                                (_) => _queryRandom(),
  -                                growable: false))
  +  Future
  +      .wait(new List.generate(queries, (_) => _queryRandom(), growable: false))
         .then((response) => _sendJson(request, response));
   }
   
   /// Responds with the fortunes test to the [request].
   void _fortunesTest(HttpRequest request) {
     _connectionPool.connect().then((connection) {
  -    return connection.query('SELECT id, message FROM fortune;')
  +    return connection
  +        .query('SELECT id, message FROM fortune;')
           .map((row) => new Fortune(row[0], row[1]))
           .toList()
  -        .whenComplete(() { connection.close(); });
  +        .whenComplete(() {
  +      connection.close();
  +    });
     }).then((fortunes) {
       fortunes.add(new Fortune(0, 'Additional fortune added at request time.'));
       fortunes.sort();
       _sendHtml(request, _fortunesTemplate.renderString({
  -      'fortunes': fortunes.map((fortune) => {
  -              'id': fortune.id, 'message': fortune.message
  -          }).toList()
  +      'fortunes': fortunes
  +          .map((fortune) => {'id': fortune.id, 'message': fortune.message})
  +          .toList()
       }));
     });
   }
  
positive.code:     new File('postgresql.yaml').readAsString().then((config) {
        _connectionPool = new pgpool.Pool(
            new pg.Settings.fromMap(yaml.loadYaml(config)).toUri(),
            min: dbConnections,
            max: dbConnections);
        return _connectionPool.start();
      }),
      new File('fortunes.mustache').readAsString().then((template) {
  
negative.code: 
    World(this.id, this.randomnumber);
  
    toJson() => {'id': id, 'randomNumber': randomnumber};
  }
  
  /// The entity used in the fortunes test.
  