LibTest/io/File/length_A01_t02.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 Future<int> length()
/// Get the length of the file. Returns a Future<int> that completes with the
/// length in bytes.
/// @description Checks that this method returns the length of the file in bytes.
/// Test not empty 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 {
  List<int> bytes = [1, 2, 3, 17, 255];
  File file = getTempFileSync(parent: sandbox);
  file.writeAsBytesSync(bytes);
  asyncStart();
  await file.length().then((int length) {
    Expect.equals(bytes.length, length);
    asyncEnd();
  });
}