Cant unregister listener

evia · November 30, 2023, 7:50am

I have a test suite that makes real API calls to the Sanic application server instance.
My test suite calls the “after_server_stop” registered listener handler after each test run, which shut down the application’s async sessions and tasks, and that makes the second test (and so on) to fail because each sequent test makes a call with a new async session and fails for “cannot schedule new futures after shutdown”

Questions are:

How can I unregister a certain listener just for the test suite run
What is the proper way (with code example) to keep an event loop running throughout all test suites run complete, and only then to shut sessions

My sanic, and pytest version
sanic 23.6.0
sanic-oauth 0.4.0
sanic-restful-api 0.2.0
sanic-routing 23.6.0
sanic-session 0.5.6
sanic-testing 23.6.0

pytest 7.4.3
pytest-mock 3.12.0
pytest-postgresql 5.0.0
pytest-sanic 1.9.1
pytest-timeout 2.2.0

Thank you

ahopkins · November 30, 2023, 9:33pm

Take a look at the factory pattern here that is meant for this case:

github.com

ahopkins/sanicbook/blob/c78d3e5b417c473082597e07ab536cce71787527/application/booktracker/server.py

from pathlib import Path
from typing import Optional, Sequence, Tuple

from sanic import Sanic

# Modules imported here should NOT have a Sanic.get_app() call in the global
# scope. Doing so will cause a circular import. Therefore, we progromatically
# import those modules inside of the create_app() factory.
from booktracker.common.auth.startup import setup_auth
from booktracker.common.csrf import setup_csrf
from booktracker.common.log import setup_logging
from booktracker.common.pagination import setup_pagination
from booktracker.worker.module import setup_modules
from booktracker.worker.request import BooktrackerRequest

DEFAULT: Tuple[str, ...] = (
    "booktracker.blueprints.view",
    "booktracker.middleware.request_context",
    "booktracker.middleware.redirect",
    "booktracker.worker.postgres",

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Have you seen this? Maybe it will help.