Fix - TypeError - accessing None when dequeued result is None (when timeout=None, e.g. in burst mode) (#1793)

* fix accessing None when dequeued result is None (burst=True, or timeout=None)

* add a test

* pr fix

* fix tests

1 files changed, 8 insertions, 0 deletions

diff --git a/tests/test_worker.py b/tests/test_worker.py
index e001a95..b0bb3d7 100644
--- a/tests/test_worker.py
+++ b/tests/test_worker.py
@@ -634,6 +634,14 @@ class TestWorker(RQTestCase):
         res.refresh()
         self.assertIn('JobTimeoutException', as_text(res.exc_info))
 
+    def test_dequeue_job_and_maintain_ttl_non_blocking(self):
+        """Not passing a timeout should return immediately with None as a result"""
+        q = Queue()
+        w = Worker([q])
+
+        # Put it on the queue with a timeout value
+        self.assertIsNone(w.dequeue_job_and_maintain_ttl(None))
+
     def test_worker_sets_result_ttl(self):
         """Ensure that Worker properly sets result_ttl for individual jobs."""
         q = Queue()