Robert Nystrom
2f2bdc3c22
Change-Id: I182e28a3c4b44dd899e5ea30ac5c5c3ba60fd6cc Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/425333 Reviewed-by: Srujan Gaddam <srujzs@google.com> Commit-Queue: Bob Nystrom <rnystrom@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com>
54 lines
1.3 KiB
Dart
54 lines
1.3 KiB
Dart
// Copyright (c) 2021, 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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@JS()
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library js_util_async_test;
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import 'dart:async';
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import 'package:js/js.dart';
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import 'package:js/js_util.dart' as js_util;
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import 'package:expect/legacy/minitest.dart'; // ignore: deprecated_member_use_from_same_package
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import 'package:expect/async_helper.dart';
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@JS()
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external void eval(String code);
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@JS()
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abstract class Promise<T> {}
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@JS()
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external Promise getResolvedPromise();
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@JS()
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external Promise getRejectedPromise();
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main() {
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eval(r"""
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function getResolvedPromise() {
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return new Promise(resolve => resolve('resolved'));
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}
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function getRejectedPromise() {
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return new Promise((resolve, reject) => reject('rejected'));
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}
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""");
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Future<void> testResolvedPromise() async {
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final String result = await js_util.promiseToFuture(getResolvedPromise());
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expect(result, equals('resolved'));
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}
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Future<void> testRejectedPromise() async {
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final String error = await asyncExpectThrows<String>(
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js_util.promiseToFuture(getRejectedPromise()),
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);
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expect(error, equals('rejected'));
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}
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asyncTest(() async {
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await testResolvedPromise();
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await testRejectedPromise();
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});
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}
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