blob: 29693b139c37270aa47469e1647c71f9e9d4a1d4 [file] [log] [blame]
// Copyright (c) 2015, 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.
// @dart = 2.9
library future_delayed_test;
import 'package:async_helper/async_helper.dart';
import "package:expect/expect.dart";
import 'dart:async';
Future<int> createIntFuture() {
return new Future<int>.value(499);
}
unnamed() {
asyncStart();
new Future<int>(createIntFuture).then((x) {
Expect.equals(499, x);
asyncEnd();
});
}
delayed() {
asyncStart();
new Future<int>.delayed(const Duration(milliseconds: 2), createIntFuture)
.then((x) {
Expect.equals(499, x);
asyncEnd();
});
}
microtask() {
asyncStart();
new Future<int>.microtask(createIntFuture).then((x) {
Expect.equals(499, x);
asyncEnd();
});
}
sync() {
asyncStart();
new Future<int>.sync(createIntFuture).then((x) {
Expect.equals(499, x);
asyncEnd();
});
}
main() {
asyncStart();
// Test that all the Future constructors take functions that return a Future
// as argument.
// In particular the constructors must not type their argument as
// `T computation()`.
unnamed();
delayed();
microtask();
sync();
asyncEnd();
}