| // Copyright (c) 2016, 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 "package:expect/expect.dart"; | 
 | import "package:async_helper/async_helper.dart"; | 
 |  | 
 | // All three libraries have an HttpRequest class. | 
 | import "conditional_import_test.dart" | 
 |     if (dart.library.io) "dart:io" | 
 |     if (dart.library.html) "dart:html" deferred as d show HttpRequest; | 
 |  | 
 | class HttpRequest {} | 
 |  | 
 | void main() { | 
 |   asyncStart(); | 
 |   var io = const bool.fromEnvironment("dart.library.io"); | 
 |   var html = const bool.fromEnvironment("dart.library.html"); | 
 |   () async { | 
 |     // Shouldn't fail. Shouldn't time out. | 
 |     await d.loadLibrary().timeout(const Duration(seconds: 5)); | 
 |     if (io) { | 
 |       print("io"); | 
 |       Expect.throws(() => new d.HttpRequest()); // Class is abstract in dart:io | 
 |     } else if (html) { | 
 |       print("html"); | 
 |       dynamic r = new d.HttpRequest(); // Shouldn't throw | 
 |       var o = r.open; // Shouldn't fail, the open method is there. | 
 |     } else { | 
 |       print("none"); | 
 |       dynamic r = new d.HttpRequest(); | 
 |       Expect.isTrue(r is HttpRequest); | 
 |     } | 
 |     asyncEnd(); | 
 |   }(); | 
 | } |