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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 import 'package:async_helper/async_helper.dart'; | 5 import 'package:async_helper/async_helper.dart'; |
6 import "package:expect/expect.dart"; | 6 import "package:expect/expect.dart"; |
7 import 'dart:async'; | 7 import 'dart:async'; |
8 import 'catch_errors.dart'; | 8 import 'catch_errors.dart'; |
9 | 9 |
10 main() { | 10 main() { |
11 asyncStart(); | 11 asyncStart(); |
12 Completer done = new Completer(); | 12 Completer done = new Completer(); |
13 | 13 |
14 var events = []; | 14 var events = []; |
15 StreamController controller; | 15 StreamController controller; |
16 Stream stream; | 16 Stream stream; |
17 // Test that errors are not traversing zone boundaries. | 17 // Test that errors are not traversing zone boundaries. |
18 // Note that the first listener of `asBroadcastStream` determines in which | 18 // Note that the first listener of `asBroadcastStream` determines in which |
19 // zone the subscription lives. | 19 // zone the subscription lives. |
20 catchErrors(() { | 20 catchErrors(() { |
21 catchErrors(() { | 21 catchErrors(() { |
22 controller = new StreamController(); | 22 controller = new StreamController(); |
23 stream = controller.stream | 23 stream = controller.stream |
24 .map((x) { | 24 .map((x) { |
25 events.add("map $x"); | 25 events.add("map $x"); |
26 return x + 100; | 26 return x + 100; |
27 }) | 27 }) |
28 .transform(new StreamTransformer( | 28 .transform(new StreamTransformer.fromHandlers( |
29 handleError: (e, sink) => sink.add("error $e"))) | 29 handleError: (e, st, sink) { sink.add("error $e"); })) |
30 .asBroadcastStream(); | 30 .asBroadcastStream(); |
31 stream.listen((x) { events.add("stream $x"); }); | 31 stream.listen((x) { events.add("stream $x"); }); |
32 }).listen((x) { events.add(x); }) | 32 }).listen((x) { events.add(x); }) |
33 .asFuture().then((_) { Expect.fail("Unexpected callback"); }); | 33 .asFuture().then((_) { Expect.fail("Unexpected callback"); }); |
34 stream.listen((x) { events.add("stream2 $x"); }); | 34 stream.listen((x) { events.add("stream2 $x"); }); |
35 controller.add(1); | 35 controller.add(1); |
36 // Errors are not allowed to traverse boundaries. This error should be | 36 // Errors are not allowed to traverse boundaries. This error should be |
37 // caught by the outer catchErrors. | 37 // caught by the outer catchErrors. |
38 controller.addError(2); | 38 controller.addError(2); |
39 controller.close(); | 39 controller.close(); |
40 }).listen((x) { | 40 }).listen((x) { |
41 events.add("outer: $x"); | 41 events.add("outer: $x"); |
42 if (x == 2) done.complete(true); | 42 if (x == 2) done.complete(true); |
43 }, | 43 }, |
44 onDone: () { Expect.fail("Unexpected callback"); }); | 44 onDone: () { Expect.fail("Unexpected callback"); }); |
45 | 45 |
46 done.future.whenComplete(() { | 46 done.future.whenComplete(() { |
47 // Give handlers time to run. | 47 // Give handlers time to run. |
48 Timer.run(() { | 48 Timer.run(() { |
49 Expect.listEquals(["map 1", | 49 Expect.listEquals(["map 1", |
50 "stream 101", | 50 "stream 101", |
51 "stream2 101", | 51 "stream2 101", |
52 "outer: 2", | 52 "outer: 2", |
53 ], | 53 ], |
54 events); | 54 events); |
55 asyncEnd(); | 55 asyncEnd(); |
56 }); | 56 }); |
57 }); | 57 }); |
58 } | 58 } |
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