Function test_handlers_annotations

tests/test_exceptions.py:210–224

Check that async exception handlers are accepted by type checkers. We annotate the handlers' exceptions with plain `Exception` to avoid variance issues when using other exception types.

()

def test_handlers_annotations() -> None:
    """Check that async exception handlers are accepted by type checkers.

    We annotate the handlers' exceptions with plain `Exception` to avoid variance issues
    when using other exception types.
    """

    async def async_catch_all_handler(request: Request, exc: Exception) -> JSONResponse:
        raise NotImplementedError

    def sync_catch_all_handler(request: Request, exc: Exception) -> JSONResponse:
        raise NotImplementedError

    ExceptionMiddleware(router, handlers={Exception: sync_catch_all_handler})
    ExceptionMiddleware(router, handlers={Exception: async_catch_all_handler})