| // 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. |
| |
| /// @assertion Stream<FileSystemEvent> watch({ |
| /// int events: FileSystemEvent.ALL, |
| /// bool recursive: false |
| /// }) |
| /// Start watching the FileSystemEntity for changes. |
| /// @description Checks that this method watches the FileSystemEntity for |
| /// changes. Test events parameter |
| /// @author sgrekhov@unipro.ru |
| |
| import "dart:io"; |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| import "../file_utils.dart"; |
| |
| main() async { |
| await inSandbox(_main); |
| } |
| |
| _main(Directory sandbox) async { |
| Directory dir = getTempDirectorySync(parent: sandbox); |
| Directory child = dir.createTempSync(); |
| |
| final eventCompleter = new Completer<FileSystemEvent?>(); |
| StreamSubscription? subscription; |
| asyncStart(); |
| subscription = dir.watch(events: FileSystemEvent.create).listen((FileSystemEvent event) async { |
| eventCompleter.complete(event); |
| await subscription?.cancel(); |
| if (event.type != FileSystemEvent.create) { |
| Expect.fail("Wrong event arrived"); |
| } else { |
| asyncEnd(); |
| } |
| }); |
| child.deleteSync(); |
| dir.createTempSync(); |
| |
| await eventCompleter.future |
| .timeout(Duration(seconds: eventsTimeout), onTimeout: () async { |
| await subscription?.cancel(); |
| }); |
| } |