aioresponses ignores streaming uploads

[OvervCW]

Consider the following example:

import asyncio

from aiohttp import ClientSession
from aioresponses import aioresponses


async def main():
    with aioresponses() as mock_responses:
        mock_responses.post("http://1.2.3.4")

        async def data_generator():
            yield b"foo"
            raise RuntimeError("this generator is never awaited")

        async with (
            ClientSession() as session,
            session.post("http://1.2.3.4", data=data_generator()) as response,
        ):
            print(response.status)
            print(await response.text())


if __name__ == "__main__":
    asyncio.run(main())

I would expect a failure here because the generator for the request body raises an exception, but instead the code exits normally with a 200 response. It seems like aioresponses is never actually awaiting the request body generator.

In my current project this is a problem because it means that there is no test coverage for the generator.

Is there a workaround for this, or is this a bug that needs to be fixed in aioresponses?