Files
sdk/tests/lib/html/js_interop_1_test.dart
T
Srujan Gaddam b1d4b29faf [dart:html] Await completer future instead in js_interop_1_test
js_interop_1_test awaits the completer itself instead of the
future which is triggered when the completer completes.

Change-Id: I6a784ced7caaade457cd444823e8cd21d338b9b7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/213025
Reviewed-by: Nicholas Shahan <nshahan@google.com>
Commit-Queue: Srujan Gaddam <srujzs@google.com>
2021-09-10 21:17:26 +00:00

33 lines
857 B
Dart

// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file
library JsInterop1Test;
import 'package:async_helper/async_helper.dart';
import 'dart:async';
import 'dart:html';
injectSource(code) {
final script = new ScriptElement();
script.type = 'text/javascript';
script.innerHtml = code;
document.body!.append(script);
}
main() {
asyncTest(() async {
var subscription;
var completer = Completer<void>();
subscription = window.onMessage.listen((e) {
if (!completer.isCompleted && e.data == 'hello') {
completer.complete();
subscription.cancel();
}
});
injectSource("window.postMessage('hello', '*');");
await completer.future;
});
}