The cloud-native orchestrator for the whole development lifecycle, with integrated lineage and observability.

dagster

Hello, got a quick question.  Are there any testing examples (preferably with invocation) of `async` solids?  currently working through this and there is a `DagsterTypeCheckDidNotPass`  with type failure along the lines of `expected return_type got coroutine` .  Our tests that use `execute_solid` for our async solids still work fwiw

basic example
```@solid
async def foo_async() -&gt; str:
    return "bar"



@pytest.mark.asyncio
async def test_foo():
    result = await foo_async()
    assert result == "bar"```


we have this under test but not using the pytest scheme you are trying <https://github.com/dagster-io/dagster/blob/master/python_modules/dagster/dagster_tests/core_tests/test_solid_invocation.py#L348-L355>

Forgot to mention yesterday, but the test passed without the type annotation.  Once adding it, it throws the type error

ah type annotation - that seems like what we need to repro the bug. Thanks for the report!
edit: clarity

yep, sees type `coroutine` but expects `str`   sorry if that wasnt clear

I don't think type annotation is the bug - I think we're getting the coroutine and not unfurling it properly