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Side by Side Diff: tests/lib/async/catch_errors20_test.dart

Issue 2993213003: Migrated test block 167 to Dart 2.0. (Closed)
Patch Set: Created 3 years, 4 months ago
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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
3 // BSD-style license that can be found in the LICENSE file.
4
5 import 'package:async_helper/async_helper.dart';
6 import "package:expect/expect.dart";
7 import 'dart:async';
8 import 'catch_errors.dart';
9
10 main() {
11 asyncStart();
12 Completer done = new Completer();
13
14 var events = [];
15 // Test that nested stream (from `catchErrors`) that is delayed by a future
16 // is waited for.
17 catchErrors(() {
18 catchErrors(() {
19 new Future.error(499);
20 new Future.delayed(const Duration(milliseconds: 20), () {
21 events.add(42);
22 done.complete(true);
23 });
24 }).listen(events.add, onDone: () {
25 events.add("done");
26 });
27 throw "foo";
28 }).listen((x) {
29 events.add("outer: $x");
30 }, onDone: () {
31 Expect.fail("Unexpected callback");
32 });
33
34 done.future.whenComplete(() {
35 // Give handlers time to run.
36 Timer.run(() {
37 Expect.listEquals([
38 "outer: foo",
39 499,
40 42,
41 ], events);
42 asyncEnd();
43 });
44 });
45 }
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