Bob Nystrom
307742d07e
Since unittest is known to work with test.dart as a test runner and is strong mode clean, it's a safer bet than test. Change-Id: Id120d4f871827b1f131dff2a5ef2f7efb15a8382 Reviewed-on: https://dart-review.googlesource.com/12125 Reviewed-by: Terry Lucas <terry@google.com>
88 lines
2.0 KiB
Dart
88 lines
2.0 KiB
Dart
// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'package:unittest/unittest.dart';
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import 'causal_async_exception_stack_helper.dart' as h;
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thrower() async {
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throw 'oops';
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}
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number() async {
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return 4;
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}
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generator() async* {
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yield await number();
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yield await thrower();
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}
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foo() async {
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await for (var i in generator()) {
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print(i);
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}
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}
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main() async {
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// Test async and async*.
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test('causal async exception stack', () async {
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try {
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await foo();
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fail("Did not throw");
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} catch (e, st) {
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expect(
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h.stringContainsInOrder(st.toString(), [
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'thrower', '.dart:10', //
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'<asynchronous suspension>', //
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'generator', '.dart:19', //
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'<asynchronous suspension>', //
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'foo', '.dart:23', //
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'<asynchronous suspension>', //
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'main', //
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]),
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isTrue);
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}
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inner() async {
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deep() async {
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await thrower();
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}
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await deep();
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}
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// Test inner functions.
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try {
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await inner();
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} catch (e, st) {
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expect(
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h.stringContainsInOrder(st.toString(), [
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'thrower',
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'<asynchronous suspension>',
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'main.<anonymous closure>.inner.deep',
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'<asynchronous suspension>',
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'main.<anonymous closure>.inner',
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'<asynchronous suspension>',
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'main',
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'<asynchronous suspension>',
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]),
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isTrue);
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}
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// Test for correct linkage.
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try {
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await thrower();
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} catch (e, st) {
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expect(
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h.stringContainsInOrder(st.toString(), [
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'thrower', '.dart:10', //
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'<asynchronous suspension>', //
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'main.<anonymous closure>', '.dart:76', //
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]),
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isTrue);
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}
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});
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}
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