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38 lines
1.1 KiB
Python
38 lines
1.1 KiB
Python
"""Restore Celery app ownership after tests initialize a real Flask-backed app."""
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from collections.abc import Iterator
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from typing import Protocol, cast
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import pytest
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from celery import Celery, _state
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class _CeleryThreadState(Protocol):
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current_app: Celery | None
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class _CeleryGlobalState(Protocol):
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default_app: Celery | None
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_tls: _CeleryThreadState
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def set_default_app(self, app: Celery | None) -> None: ...
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def _set_current_app(self, app: Celery | None) -> None: ...
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@pytest.fixture
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def preserve_celery_apps() -> Iterator[None]:
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# Celery owns these state exports; its bundled typing omits their private names.
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state = cast(_CeleryGlobalState, _state)
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previous_default = state.default_app
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previous_current = state._tls.current_app
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try:
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yield
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finally:
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created = {state.default_app, state._tls.current_app} - {previous_default, previous_current, None}
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state.set_default_app(previous_default)
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state._set_current_app(previous_current)
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for app in created:
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assert app is not None
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app.close()
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