| // Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| /// @assertion Stream bind(Stream stream) |
| /// Transform the incoming stream's events. |
| /// Creates a new stream. When this stream is listened to, it will start |
| /// listening on stream, and generate events on the new stream based on the |
| /// events from stream. |
| /// |
| /// Subscriptions on the returned stream should propagate pause state to the |
| /// subscription on stream. |
| /// @description Checks that this method transforms stream's events |
| /// @author sgrekhov@unipro.ru |
| |
| import "dart:async"; |
| import "dart:convert"; |
| import "../../../Utils/expect.dart"; |
| |
| Future check(List<String> data) async { |
| JsonDecoder decoder = new JsonDecoder(); |
| await for (Object? event in decoder.bind(new Stream.fromIterable(data))) { |
| Expect.deepEquals(decoder.convert(data2string(data)), event); |
| } |
| } |
| |
| String data2string(Iterable<String> data) { |
| StringBuffer sb = new StringBuffer(); |
| Iterator it = data.iterator; |
| while (it.moveNext()) { |
| sb.write(it.current); |
| } |
| return sb.toString(); |
| } |
| |
| main() { |
| asyncStart(); |
| Future.wait([ |
| check(["1", "2", "3.14"]), |
| check(["[[1, 2, 3],", '{"a": 3}]']), |
| check(['{"a"', ':', '"b"', '}']), |
| check(['[{"a"', ':', '"b"', '}, ', '{"c": 5', '}]']), |
| check(["true"]), |
| check(["false"]), |
| check(["null"]), |
| check(['{"й"', ':', '"ф"', '}']) |
| ]).then( |
| (_) => asyncEnd() |
| ); |
| } |