| // Copyright (c) 2013, 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 = 2.7 |
| |
| import 'package:async_helper/async_helper.dart'; |
| import 'package:expect/expect.dart'; |
| |
| import 'dart:async'; |
| |
| import 'deferred_class_library.dart' deferred as lib; |
| |
| bool isError(e) => e is Error; |
| |
| main() { |
| var x; |
| Expect.throws(() { |
| x = new lib.MyClass(); |
| }, isError); |
| Expect.isNull(x); |
| int counter = 0; |
| asyncStart(); |
| lib.loadLibrary().then((_) { |
| Expect.equals(1, ++counter); |
| print('deferred_class_library was loaded'); |
| x = new lib.MyClass(); |
| Expect.equals(42, x.foo(87)); |
| asyncEnd(); |
| }); |
| Expect.equals(0, counter); |
| Expect.isNull(x); |
| asyncStart(); |
| lib.loadLibrary().then((_) { |
| Expect.equals(2, ++counter); |
| print('deferred_class_library was loaded'); |
| x = new lib.MyClass(); |
| Expect.equals(42, x.foo(87)); |
| asyncEnd(); |
| }); |
| Expect.equals(0, counter); |
| Expect.isNull(x); |
| Expect.throws(() { |
| x = new lib.MyClass(); |
| }, isError); |
| Expect.isNull(x); |
| } |