| // 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<String> bind(Stream<Object> 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:convert"; |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| |
| Future check(Object? data) async { |
| JsonEncoder encoder = new JsonEncoder(); |
| StringBuffer sb = new StringBuffer(); |
| await for (Object event in encoder.bind(new Stream.fromIterable([data]))) { |
| sb.write(event); |
| } |
| Expect.deepEquals(encoder.convert(data), sb.toString()); |
| } |
| |
| main() { |
| asyncStart(); |
| Future.wait([ |
| check(1), |
| check(3.14), |
| check(null), |
| check(true), |
| check(false), |
| check('"str"'), |
| check(["1", "2", "3.14"]), |
| check([[1, 2, 3], {"a": "3"}]), |
| check({"a": "b"}), |
| check({"й": " ф "}) |
| ]).then( |
| (_) => asyncEnd() |
| ); |
| } |