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-rw-r--r--Lib/test/test_coroutines.py12
1 files changed, 9 insertions, 3 deletions
diff --git a/Lib/test/test_coroutines.py b/Lib/test/test_coroutines.py
index b406b1c3ebf..208b5c2ccf5 100644
--- a/Lib/test/test_coroutines.py
+++ b/Lib/test/test_coroutines.py
@@ -2032,11 +2032,17 @@ class CoroutineTest(unittest.TestCase):
def test_fatal_coro_warning(self):
# Issue 27811
async def func(): pass
- with warnings.catch_warnings(), support.captured_stderr() as stderr:
+ with warnings.catch_warnings(), \
+ support.catch_unraisable_exception() as cm:
warnings.filterwarnings("error")
- func()
+ coro = func()
+ # only store repr() to avoid keeping the coroutine alive
+ coro_repr = repr(coro)
+ coro = None
support.gc_collect()
- self.assertIn("was never awaited", stderr.getvalue())
+
+ self.assertIn("was never awaited", str(cm.unraisable.exc_value))
+ self.assertEqual(repr(cm.unraisable.object), coro_repr)
def test_for_assign_raising_stop_async_iteration(self):
class BadTarget: