// 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.

// @dart = 2.9

/// @assertion Future<Directory> createTemp([String prefix])
/// Creates a temporary directory in this directory. Additional random characters
/// are appended to prefix to produce a unique directory name. If prefix is
/// missing or null, the empty string is used for prefix.
///
/// Returns a Future<Directory> that completes with the newly created temporary
/// directory.
/// @description Checks that this method creates a temporary directory in this
/// directory. Check prefix parameter
/// @author sgrekhov@unipro.ru

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

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

_main(Directory sandbox) async {
  asyncStart();
  Directory parent = getTempDirectorySync(parent: sandbox);
  await parent.createTemp("co19").then((dir) {
    Expect.equals(parent.absolute.path, dir.parent.absolute.path);
    Expect.isTrue(dir.path
        .startsWith("co19", (dir.parent.path + Platform.pathSeparator).length));
    Expect.isTrue(dir.existsSync());
    asyncEnd();
  });
}