// Copyright 2018 (c) The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.

#ifndef STORAGE_LEVELDB_UTIL_ENV_WINDOWS_TEST_HELPER_H_
#define STORAGE_LEVELDB_UTIL_ENV_WINDOWS_TEST_HELPER_H_

namespace leveldb {

class EnvWindowsTest;

// A helper for the Windows Env to facilitate testing.
class EnvWindowsTestHelper {
 private:
  friend class CorruptionTest;
  friend class EnvWindowsTest;

  // Set the maximum number of read-only files that will be mapped via mmap.
  // Must be called before creating an Env.
  static void SetReadOnlyMMapLimit(int limit);

  // Relax file permissions for tests. This results in most files being opened
  // with read-write permissions. This is helpful for corruption tests that
  // need to corrupt the database files for open databases.
  static void RelaxFilePermissions();
};

}  // namespace leveldb

#endif  // STORAGE_LEVELDB_UTIL_ENV_WINDOWS_TEST_HELPER_H_