issue_comments: 1353812913

This is all very broken: ``` % pytest -x --pdb ================================================================================== test session starts ================================================================================== platform darwin -- Python 3.10.3, pytest-7.1.3, pluggy-1.0.0 SQLite: 3.39.4 rootdir: /Users/simon/Dropbox/Development/datasette, configfile: pytest.ini plugins: anyio-3.6.1, xdist-2.5.0, forked-1.4.0, asyncio-0.19.0, timeout-2.1.0, profiling-1.7.0 asyncio: mode=strict collected 1295 items

tests/test_package.py .. [ 0%] tests/test_cli.py . [ 0%] tests/test_cli_serve_get.py .. [ 0%] tests/test_cli.py . [ 0%] tests/test_black.py . [ 0%] tests/test_api.py E

traceback >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

fixturedef = <FixtureDef argname='event_loop' scope='session' baseid='tests'>, request = <SubRequest 'event_loop' for \<Function test_homepage>>

@pytest.hookimpl(hookwrapper=True)
def pytest_fixture_setup(
    fixturedef: FixtureDef, request: SubRequest
) -> Optional[object]:
    """Adjust the event loop policy when an event loop is produced."""
    if fixturedef.argname == "event_loop":
        outcome = yield

      loop = outcome.get_result()

/Users/simon/.local/share/virtualenvs/datasette-AWNrQs95/lib/python3.10/site-packages/pytest_asyncio/plugin.py:377:

---

/Users/simon/Dropbox/Development/datasette/tests/conftest.py:30: in event_loop return asyncio.get_event_loop()

---

self = <asyncio.unix_events._UnixDefaultEventLoopPolicy object at 0x111e34670>

def get_event_loop(self):
    """Get the event loop for the current context.

    Returns an instance of EventLoop or raises an exception.
    """
    if (self._local._loop is None and
            not self._local._set_called and
            threading.current_thread() is threading.main_thread()):
        self.set_event_loop(self.new_event_loop())

    if self._local._loop is None:

      raise RuntimeError('There is no current event loop in thread %r.'
                           % threading.current_thread().name)

E RuntimeError: There is no current event loop in thread 'MainThread'.

/Users/simon/.pyenv/versions/3.10.3/lib/python3.10/asyncio/events.py:656: RuntimeError

entering PDB >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

PDB post_mortem (IO-capturing turned off) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> /Users/simon/.pyenv/versions/3.10.3/lib/python3.10/asyncio/events.py(656)get_event_loop() -> raise RuntimeError('There is no current event loop in thread %r.' (Pdb) q

=================================================================================== warnings summary ==================================================================================== tests/test_cli.py::test_inspect_cli_writes_to_file tests/test_cli.py::test_inspect_cli /Users/simon/Dropbox/Development/datasette/datasette/cli.py:163: DeprecationWarning: There is no current event loop loop = asyncio.get_event_loop()

tests/test_cli_serve_get.py::test_serve_with_get_exit_code_for_error tests/test_cli_serve_get.py::test_serve_with_get /Users/simon/Dropbox/Development/datasette/datasette/cli.py:596: DeprecationWarning: There is no current event loop asyncio.get_event_loop().run_until_complete(ds.invoke_startup())

tests/test_cli_serve_get.py::test_serve_with_get_exit_code_for_error tests/test_cli_serve_get.py::test_serve_with_get /Users/simon/Dropbox/Development/datasette/datasette/cli.py:599: DeprecationWarning: There is no current event loop asyncio.get_event_loop().run_until_complete(check_databases(ds))

tests/test_api.py::test_homepage /Users/simon/Dropbox/Development/datasette/tests/conftest.py:30: DeprecationWarning: There is no current event loop return asyncio.get_event_loop()

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html ================================================================================ short test summary info ================================================================================ ERROR tests/test_api.py::test_homepage - RuntimeError: There is no current event loop in thread 'MainThread'. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! stopping after 1 failures !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! _pytest.outcomes.Exit: Quitting debugger !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ======================================================================== 7 passed, 7 warnings, 1 error in 19.15s ======================================================================== (datasette) datasette % ``` The problem looks to be caused by this:

https://github.com/simonw/datasette/blob/87737aa1ace82fa7b54c60c41471ec9a661f5299/tests/conftest.py#L28-L30

Which I found necessary in order to have async def fixtures that could be shared on the scope="session" basis.

Can I work around this, or is scope="session" for async fixtures incompatible with my test suite for some reason?