text: import pytest
  from aiorocksdb.rocks_db import *
  from aiorocksdb.extension import *
  
  
  @pytest.mark.asyncio
  async def test_string_commands():
      await RocksDb.destroy_db('db_test_redis')
  
      option = Options()
      option.create_if_missing = True
      async with Db(Db.open_db('db_test_redis', option)) as db:
          redis = db.redis('default')
          v = await redis.get(b'notExist')
          assert v is None
  
          await redis.set(b'foo', b'bar')
          v = await redis.get(b'foo')
          assert v == b'bar'
          await redis.delete(b'foo')
          v = await redis.get(b'foo')
          assert v is None
  