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>
111 lines
2.6 KiB
Dart
111 lines
2.6 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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foo3() async => throw "foo";
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bar3() async => throw "bar";
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foo2() async => foo3();
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bar2() async => bar3();
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foo() async => foo2();
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bar() async => bar2();
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test1() async {
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// test1 -> foo -> foo2 -> foo3
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// test1 -> bar -> bar2 -> bar3
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// These run interleaved, check their stack traces don't become mixed.
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var a = foo();
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var b = bar();
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try {
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await a;
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} catch (e, st) {
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// st has foo,2,3 and not bar,2,3.
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expect(
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h.stringContainsInOrder(st.toString(), [
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'foo3',
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'<asynchronous suspension>',
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'foo2',
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'<asynchronous suspension>',
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'foo',
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'<asynchronous suspension>',
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'test1',
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]),
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isTrue);
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expect(st.toString().contains('bar'), isFalse);
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}
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try {
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await b;
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} catch (e, st) {
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// st has bar,2,3 but not foo,2,3
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expect(
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h.stringContainsInOrder(st.toString(), [
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'bar3',
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'<asynchronous suspension>',
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'bar2',
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'<asynchronous suspension>',
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'bar',
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'<asynchronous suspension>',
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'test1',
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]),
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isTrue);
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expect(st.toString().contains('foo'), isFalse);
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}
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}
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test2() async {
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// test2 -> foo -> foo2 -> foo3
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// test2 -> bar -> bar2 -> bar3
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// These run sequentially, check the former stack trace didn't get linked to
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// from the latter stack trace.
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try {
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await foo();
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} catch (e, st) {
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// st has foo,2,3 but not bar,2,3
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expect(
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h.stringContainsInOrder(st.toString(), [
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'foo3',
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'<asynchronous suspension>',
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'foo2',
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'<asynchronous suspension>',
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'foo',
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'<asynchronous suspension>',
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'test2',
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]),
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isTrue);
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expect(st.toString().contains('bar'), isFalse);
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}
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try {
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await bar();
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} catch (e, st) {
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// st has bar,2,3 but not foo,2,3
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expect(
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h.stringContainsInOrder(st.toString(), [
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'bar3',
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'<asynchronous suspension>',
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'bar2',
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'<asynchronous suspension>',
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'bar',
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'<asynchronous suspension>',
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'test2',
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]),
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isTrue);
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expect(st.toString().contains('foo'), isFalse);
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}
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}
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main() async {
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test('causal async exception stack', () async {
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await test1();
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await test2();
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});
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}
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