blob: 4b0479df22b34469fd82b5c65b1bf75aae53a10d [file] [log] [blame]
// 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 writeAsBytesSync(
/// List<int> bytes, {
/// FileMode mode: FileMode.write,
/// bool flush: false
/// })
/// Synchronously write a list of bytes to a file.
///
/// Opens the file, writes the list of bytes to it and closes the file.
///
/// By default writeAsBytesSync 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.read a FileSystemException is thrown.
/// Test an existing file
/// @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, 1, 1, 1, 1]);
Expect.throws(() {
file.writeAsBytesSync([3, 1, 4], mode: FileMode.read);
}, (e) => e is FileSystemException);
}