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Side by Side Diff: tests/lib_strong/async/stack_trace21_test.dart

Issue 2802973005: Migrate async tests to strong (Closed)
Patch Set: Created 3 years, 8 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:expect/expect.dart';
6 import 'package:async_helper/async_helper.dart';
7 import 'dart:async';
8
9 StackTrace captureStackTrace() {
10 try {
11 throw 0;
12 } catch (e, st) {
13 return st;
14 }
15 }
16
17 main() {
18 StackTrace trace = captureStackTrace();
19 var controller;
20 controller = new StreamController(onListen: () {
21 controller.addError("error", trace);
22 controller.close();
23 });
24 asyncStart();
25 controller.stream
26 .listen((_) { throw "should never be reached"; },
27 onError: (e, st) {
28 Expect.equals("error", e);
29 Expect.identical(trace, st);
30 },
31 onDone: () {
32 asyncEnd();
33 });
34 }
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