GH-100112: avoid using iterable coroutines in asyncio internally (#100128)

1 files changed, 15 insertions, 0 deletions

diff --git a/Lib/test/test_asyncio/test_tasks.py b/Lib/test/test_asyncio/test_tasks.py
index e533d52..5b935b5 100644
--- a/Lib/test/test_asyncio/test_tasks.py
+++ b/Lib/test/test_asyncio/test_tasks.py
@@ -8,6 +8,7 @@ import random
 import re
 import sys
 import traceback
+import types
 import unittest
 from unittest import mock
 from types import GenericAlias
@@ -274,6 +275,20 @@ class BaseTaskTests:
         loop.run_until_complete(fut)
         self.assertEqual(fut.result(), 'ok')
 
+    def test_ensure_future_task_awaitable(self):
+        class Aw:
+            def __await__(self):
+                return asyncio.sleep(0, result='ok').__await__()
+
+        loop = asyncio.new_event_loop()
+        self.set_event_loop(loop)
+        task = asyncio.ensure_future(Aw(), loop=loop)
+        loop.run_until_complete(task)
+        self.assertTrue(task.done())
+        self.assertEqual(task.result(), 'ok')
+        self.assertIsInstance(task.get_coro(), types.CoroutineType)
+        loop.close()
+
     def test_ensure_future_neither(self):
         with self.assertRaises(TypeError):
             asyncio.ensure_future('ok')