Nicholas Shahan
5b391babbf
* Move each section of the original file into a new test file.
* Remove the use of multi-tests entirely to avoid running ~90% of these
tests 5 times each.
* async_star2_test/02 became cancel_while_paused_at_yield_test.dart. I will
approve the existing failures of this newly named test.
* All other sections marked as multi-tests actually appear to be passing on
all configurations so they didn't need to be broken out.
* Cleanup now unnecessary lines in the status file.
Change-Id: I5d62a35ffff1248532fa9ffade1a7259f83814da
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/130890
Commit-Queue: Nicholas Shahan <nshahan@google.com>
Reviewed-by: Bob Nystrom <rnystrom@google.com>
100 lines
2.1 KiB
Dart
100 lines
2.1 KiB
Dart
// Copyright (c) 2020, 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 'dart:async';
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import 'package:async_helper/async_minitest.dart';
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import 'utils.dart';
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main() {
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test('pauses execution at yield for at least a microtask', () {
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var list = [];
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f() async* {
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list.add(1);
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yield 2;
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list.add(3);
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yield 4;
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list.add(5);
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}
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var done = Completer();
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var sub = f().listen((v) {
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if (v == 2) {
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expect(list, equals([1]));
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} else if (v == 4) {
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expect(list, equals([1, 3]));
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} else {
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fail('Unexpected value $v');
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}
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}, onDone: () {
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expect(list, equals([1, 3, 5]));
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done.complete();
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});
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return done.future;
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});
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test('pause stops execution at yield', () {
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var list = [];
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f() async* {
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list.add(1);
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yield 2;
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list.add(3);
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yield 4;
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list.add(5);
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}
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var done = Completer();
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var sub;
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sub = f().listen((v) {
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if (v == 2) {
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expect(list, equals([1]));
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sub.pause();
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Timer(ms * 300, () {
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expect(list.length, lessThan(3));
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sub.resume();
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});
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} else if (v == 4) {
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expect(list, equals([1, 3]));
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} else {
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fail('Unexpected value $v');
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}
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}, onDone: () {
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expect(list, equals([1, 3, 5]));
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done.complete();
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});
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return done.future;
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});
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test('pause stops execution at yield 2', () {
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var list = [];
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f() async* {
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int i = 0;
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while (true) {
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yield i;
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list.add(i);
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i++;
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}
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}
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int expected = 0;
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var done = Completer();
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var sub;
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sub = f().listen((v) {
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expect(v, equals(expected++));
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if (v % 5 == 0) {
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sub.pause(Future.delayed(ms * 300));
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} else if (v == 17) {
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sub.cancel();
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done.complete();
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}
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}, onDone: () {
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fail('Unexpected done!');
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});
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return done.future.whenComplete(() {
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expect(list.length == 18 || list.length == 19, isTrue);
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});
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});
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}
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