| /* |
| * 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 void writeAsStringSync( |
| * String contents, { |
| * FileMode mode: FileMode.write, |
| * Encoding encoding: utf8, |
| * bool flush: false |
| * }) |
| * Synchronously write a string to a file. |
| * |
| * Opens the file, writes the string in the given encoding, and closes the file. |
| * |
| * By default writeAsStringSync creates the file for writing and truncates the |
| * file if it already exists. In order to append the bytes to an existing file, |
| * pass FileMode.append as the optional mode parameter. |
| * |
| * If the flush argument is set to true data written will be flushed to the file |
| * system before returning. |
| * |
| * Throws a FileSystemException if the operation fails. |
| * @description Checks that in a FileMode.writeOnly file is truncated |
| * @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.writeAsStringSync("File content"); |
| file.writeAsStringSync("New content", mode: FileMode.writeOnly); |
| Expect.equals("New content", file.readAsStringSync()); |
| } |