Is there a way to unit test tasks where ` fn` returns a coro

Question

Is there a way to unit test tasks where ` fn` returns a coroutine I tried this `from prefect aws s3 import s3 upload` ` ` `with prefect test harness ` `my upload = s3 upload fn bucket=S3 BUCKET NAME key= B5 key data=b 55555 aws credentials = AwsCredentials ` `asyncio run my upload ` But it s not working with this runtime error ```E RuntimeError There is no active flow or task run context valo prefect poc venv lib python3 7 site packages prefect logging loggers py 91 RuntimeError```

Michelle Brochmann · Answer

Probably not important since I can always wrap in a ` flow` mostly just curious stuck out tongue

Kevin Kho · Answer

Yeah I ve been looking and it seems that the task library tests just wrap in a test flow <https github com PrefectHQ prefect aws blob main tests test s3 py L193 L210|like this> I don t think this can be done

Kevin Kho · Answer

But I ll also ask some team members to be sure I ll let you know when I get a response

Zanie · Answer

Hm you should be able to test the underlying function still

Zanie · Answer

Ah including the full traceback is important

Zanie · Answer

```Traceback most recent call last File Users mz flow py line 30 in lt module gt asyncio run my upload File opt homebrew Caskroom miniconda base envs orion dev 38 lib python3 8 asyncio runners py line 44 in run return loop run until complete main File opt homebrew Caskroom miniconda base envs orion dev 38 lib python3 8 asyncio base events py line 616 in run until complete return future result File opt homebrew Caskroom miniconda base envs orion dev 38 lib python3 8 site packages prefect aws s3 py line 126 in s3 upload logger = get run logger File Users mz dev orion src prefect logging loggers py line 91 in get run logger raise RuntimeError There is no active flow or task run context RuntimeError There is no active flow or task run context ```

Zanie · Answer

This is because the task uses a logger

Zanie · Answer

We ll likely find a way to allow run loggers to be retrieved during testing without throwing an exception

Zanie · Answer

cc < alex> just so this is on your radar