warn on .wait_result call if there is no result backend

Author: igor-gorohovsky

taskiq/task.py

@@ -1,4 +1,5 @@
 import asyncio
+from logging import getLogger
 from time import time
 from typing import TYPE_CHECKING, Any, Generic, Optional
 
@@ -9,6 +10,7 @@
     ResultIsReadyError,
     TaskiqResultTimeoutError,
 )
+from taskiq.result_backends.dummy import DummyResultBackend
 
 if TYPE_CHECKING:  # pragma: no cover
     from taskiq.abc.result_backend import AsyncResultBackend
@@ -18,6 +20,9 @@
 _ReturnType = TypeVar("_ReturnType")
 
 
+logger = getLogger("taskiq")
+
+
 class AsyncTaskiqTask(Generic[_ReturnType]):
     """AsyncTask for AsyncResultBackend."""
 
@@ -83,6 +88,9 @@ async def wait_result(
             become ready in provided period of time.
         :return: task's return value.
         """
+        if isinstance(self.result_backend, DummyResultBackend):
+            logger.warning("No result backend configured. Returning dummy result...")
+
         start_time = time()
         while not await self.is_ready():
             await asyncio.sleep(check_interval)