| // Copyright (c) 2017, 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. | |
| import 'dart:async'; | |
| import 'package:expect/expect.dart'; | |
| Future<String?> foo(bool x) async => x ? "foo" : null; | |
| Future<String> bar(bool x) async { | |
| return ((await foo(x)) ?? "bar").toUpperCase(); | |
| } | |
| main() async { | |
| Expect.equals(await bar(true), "FOO"); | |
| Expect.equals(await bar(false), "BAR"); | |
| } |