/// <summary>
/// Get directories in the passed parent directory
/// </summary>
/// <param name="parentDirectoryPath">Path to the parent directory</param>
/// <returns>Array of the paths to the directories</returns>
protected virtual ArrayList GetDirectories(string parentDirectoryPath)
{
var directories = new ArrayList();
var directoryNames = _fileProvider.GetDirectories(parentDirectoryPath);
foreach (var directory in directoryNames)
{
directories.Add(directory);
directories.AddRange(GetDirectories(directory));
}
return(directories);
}