public async Task <long> DeleteTestsByRoomId(ObjectId roomId)
        {
            (await TestWorker.GetTestsByRoomId(roomId))
            .Select(async test =>
                    await _redisCache.Del($"Test:{test.Id}"));

            return(await TestWorker.DeleteTestsByRoomId(roomId));
        }
 public async Task <TestsDB_TestDTO[]> GetTestsByRoomId(ObjectId roomId) =>
 await TestWorker.GetTestsByRoomId(roomId);