public LabelSqliteBackendTest()
        {
            var conv     = new DbReaderToLabelConverter();
            var settings = new BackendSettingsTestService();

            _path = settings.GetSqliteBackendPath();

            _backend = new LabelSqliteBackend(settings, conv, new DbReaderToLabelsConverter(conv));
        }
        public PageLabelsSqliteBackendTest()
        {
            var settings = new BackendSettingsTestService();

            _backend = new PageLabelsSqliteBackend(settings, new DbReaderToLabelIdsConverter());
        }