| // 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<List<int>> openRead([int start, int end]) |
| /// Create a new independent Stream for the contents of this file. |
| /// |
| /// If start is present, the file will be read from byte-offset start. Otherwise |
| /// from the beginning (index 0). |
| /// |
| /// If end is present, only up to byte-index end will be read. Otherwise, until |
| /// end of file. |
| /// |
| /// In order to make sure that system resources are freed, the stream must be |
| /// read to completion or the subscription on the stream must be cancelled. |
| /// @description Checks that this method creates a new independent Stream for the |
| /// contents of this file. Test [start] argument |
| /// @author sgrekhov@unipro.ru |
| |
| import "dart:io"; |
| import "../../../Utils/expect.dart"; |
| import "../file_utils.dart"; |
| |
| main() async { |
| await inSandbox(_main); |
| } |
| |
| _main(Directory sandbox) async { |
| File file = getTempFileSync(parent: sandbox); |
| file.writeAsBytesSync([1, 2, 3, 4]); |
| asyncStart(); |
| await file.openRead(1).toList().then((data) { |
| Expect.listEquals([[2, 3, 4]], data); |
| asyncEnd(); |
| }); |
| } |