assert client.app_state == {"router": True}


@pytest.mark.filterwarnings(
    r"ignore:\s*on_event is deprecated, use lifespan event handlers instead.*:DeprecationWarning"
)
def test_router_async_shutdown_handler(state: State) -> None:
    """Test that async on_shutdown event handlers are called correctly, for coverage."""
    app = FastAPI()

    @app.get("/")
    def main() -> dict[str, str]: