ianbuss opened a new pull request, #43817: URL: https://github.com/apache/airflow/pull/43817
FastAPI does not run Starlette lifespan events in mounted sub-applications by default (see [docs](https://fastapi.tiangolo.com/advanced/events/#sub-applications)), so we use the suggestion in [this issue](https://github.com/fastapi/fastapi/issues/811#issuecomment-1870030103) to run all mounted sub-application lifespans using an async context manager stack. To ensure that lifespan events are run in the TestApp we use a context manager for the test_app as outlined [here](https://www.starlette.io/lifespan/#running-lifespan-in-tests). To allow assertions about the lifespans we add a simple boolean variable to application state to indicate the lifespan has been run. <!-- Please keep an empty line above the dashes. --> --- **^ Add meaningful description above** Read the **[Pull Request Guidelines](https://github.com/apache/airflow/blob/main/contributing-docs/05_pull_requests.rst#pull-request-guidelines)** for more information. In case of fundamental code changes, an Airflow Improvement Proposal ([AIP](https://cwiki.apache.org/confluence/display/AIRFLOW/Airflow+Improvement+Proposals)) is needed. In case of a new dependency, check compliance with the [ASF 3rd Party License Policy](https://www.apache.org/legal/resolved.html#category-x). In case of backwards incompatible changes please leave a note in a newsfragment file, named `{pr_number}.significant.rst` or `{issue_number}.significant.rst`, in [newsfragments](https://github.com/apache/airflow/tree/main/newsfragments). -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
