LibTest/io/Link/createSync_A03_t01.dart

// 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 createSync(
///   String target,
///   {bool recursive = false}
/// )
///  Synchronously create the link. Calling createSync on an existing link will
///  throw an exception.
///
/// If recursive is false, the default, the link is created only if all
/// directories in its path exist. If recursive is true, all non-existing parent
/// paths are created first. The directories in the path of target are not
/// affected, unless they are also in path.
///
/// On the Windows platform, this call will create a true symbolic link instead
/// of a junction. The link represents a file or directory and does not change
/// its type after creation. If [target] exists then the type of the link will
/// match the type [target], otherwise a file symlink is created.
///
/// In order to create a symbolic link on Windows, Dart must be run in
/// Administrator mode or the system must have Developer Mode enabled,
/// otherwise a [FileSystemException] will be raised with
/// `ERROR_PRIVILEGE_NOT_HELD` set as the errno when this call is made.
///
/// On other platforms, the POSIX symlink() call is used to make a symbolic link
/// containing the string target. If target is a relative path, it will be
/// interpreted relative to the directory containing the link.
///
/// @description Checks that calling `createSync` on an existing link will throw
/// an exception. Test new [Directory] target
/// @author sgrekhov@unipro.ru

import "dart:io";
import "../../../Utils/expect.dart";
import "../file_utils.dart";

main() async {
  await inSandbox(_main);
}

void _main(Directory sandbox) {
  Link link = getTempLinkSync(parent: sandbox, target: sandbox.path);
  Directory newTarget = getTempDirectorySync(parent: sandbox);
  Expect.throws(() {link.createSync(newTarget.path);});
}