public CheckFile(string filePath, IFileSystemWrapper fileSystemWrapper = null )
{
if (fileSystemWrapper != null)
this.fileSystem = fileSystemWrapper;
else
this.fileSystem = FileSystemWrapper.GetInstance();
CheckFileExists(filePath);
this.filePath = filePath;
this.Checked = false;
this.IsDuplicated = false;
this.FileId = 0;
this.Size = fileSystemWrapper.GetFileSize(filePath);
}