| /* |
| * 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 StreamSubscription<T> listen(void onData(T event), |
| * {Function onError, void onDone(), bool cancelOnError}) |
| * On errors from this stream, the onError handler is given a object describing the error. |
| * @description Checks that the onError handler is given a object describing the error. |
| * @author kaigorodov |
| */ |
| |
| import "dart:async"; |
| import "../../../Utils/async_utils.dart"; |
| import "../../../Utils/expect.dart"; |
| |
| void check(List data) { |
| Stream s1=new Stream.fromIterable(data); |
| |
| // make a Stream with only error events |
| Stream s2=s1.where((var event){ |
| throw new ArgumentError(event); |
| }); |
| |
| List sink=new List(); |
| asyncStart(); |
| s2.listen((var event) { |
| Expect.fail("unexpected call to onData($event)"); |
| }, |
| onError:(Object error) { |
| sink.add((error as ArgumentError).message); |
| }, |
| onDone:() { |
| Expect.listEquals(data, sink); |
| asyncEnd(); |
| } |
| ); |
| } |
| |
| main() { |
| check([]); |
| check([1,2,3,4]); |
| check([null,"2",-3,4.0, []]); |
| } |