Function test_middleware_factory

tests/test_applications.py:529–549

(test_client_factory: TestClientFactory)

def test_middleware_factory(test_client_factory: TestClientFactory) -> None:
    calls: list[str] = []

    def _middleware_factory(app: ASGIApp, arg: str) -> ASGIApp:
        async def _app(scope: Scope, receive: Receive, send: Send) -> None:
            calls.append(arg)
            await app(scope, receive, send)

        return _app

    def get_middleware_factory() -> Callable[[ASGIApp, str], ASGIApp]:
        return _middleware_factory

    app = Starlette()
    app.add_middleware(_middleware_factory, arg="foo")
    app.add_middleware(get_middleware_factory(), "bar")

    with test_client_factory(app):
        pass

    assert calls == ["bar", "foo"]


def test_lifespan_app_subclass() -> None: