Fixed #35174 -- Fixed Signal.asend()/asend_robust() crash when all receivers are asynchronous.

Regression in e83a88566a71a2353cebc35992c110be0f8628af.

1 files changed, 16 insertions, 0 deletions

diff --git a/tests/signals/tests.py b/tests/signals/tests.py
index 5558778bbe..6c90c6aa52 100644
--- a/tests/signals/tests.py
+++ b/tests/signals/tests.py
@@ -626,3 +626,19 @@ class AsyncReceiversTests(SimpleTestCase):
                 (async_handler, 1),
             ],
         )
+
+    async def test_asend_only_async_receivers(self):
+        async_handler = AsyncHandler()
+        signal = dispatch.Signal()
+        signal.connect(async_handler)
+
+        result = await signal.asend(self.__class__)
+        self.assertEqual(result, [(async_handler, 1)])
+
+    async def test_asend_robust_only_async_receivers(self):
+        async_handler = AsyncHandler()
+        signal = dispatch.Signal()
+        signal.connect(async_handler)
+
+        result = await signal.asend_robust(self.__class__)
+        self.assertEqual(result, [(async_handler, 1)])