| /* |
| * Copyright (c) 2011, 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 abstract Future addStream(Stream<S> stream) |
| * Consumes the elements of stream. |
| * Listens on stream and does something for each event. |
| * The consumer may stop listening after an error, or it may consume all the |
| * errors and only stop at a done event. |
| * @description Checks that addStream() can be preceded by add() and addError(). |
| * @author ilya |
| */ |
| |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| |
| listen(stream, expectedData, expectedErrors) { |
| var actualData = []; |
| var actualErrors = []; |
| |
| asyncStart(); |
| stream.listen( |
| (x) { |
| actualData.add(x); |
| }, |
| onError: (x) { |
| actualErrors.add(x); |
| }, |
| onDone: () { |
| Expect.listEquals(expectedData, actualData); |
| Expect.listEquals(expectedErrors, actualErrors); |
| asyncEnd(); |
| }); |
| } |
| |
| main() { |
| var from = new Stream.fromIterable([5,6]); |
| |
| var c = new StreamController(); |
| var sink = c.sink; |
| |
| listen(c.stream, [1,3,5,6], [2,4]); |
| |
| sink.add(1); |
| sink.addError(2); |
| sink.add(3); |
| sink.addError(4); |
| |
| asyncStart(); |
| sink.addStream(from).then((_) { |
| c.close(); |
| asyncEnd(); |
| }); |
| } |