LibTest/io/File/renameSync_A02_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 File renameSync(String newPath)
/// Synchronously renames this file. Returns a File instance for the renamed
/// file.
///
/// If newPath identifies an existing file, that file is replaced. If newPath
/// identifies an existing directory the operation fails and an exception is
/// thrown.
/// @description Checks that if newPath identifies an existing file, that file is
/// replaced
/// @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 target = getTempFileSync(parent: sandbox);
  file.writeAsStringSync("Source");
  target.writeAsStringSync("Target");

  File renamed = file.renameSync(target.path);
  Expect.equals(target.path, renamed.path);
  Expect.isTrue(renamed.existsSync());
  Expect.equals("Source", renamed.readAsStringSync());
  Expect.isFalse(file.existsSync());
}