Issue #14785: Add sys._debugmallocstats() to help debug low-level memory allocation issues
diff --git a/Lib/test/test_sys.py b/Lib/test/test_sys.py
index 796a1c5..9a6dd5b 100644
--- a/Lib/test/test_sys.py
+++ b/Lib/test/test_sys.py
@@ -603,6 +603,12 @@
self.assertEqual(sys.implementation.name,
sys.implementation.name.lower())
+ def test_debugmallocstats(self):
+ # Test sys._debugmallocstats()
+ from test.script_helper import assert_python_ok
+ args = ['-c', 'import sys; sys._debugmallocstats()']
+ ret, out, err = assert_python_ok(*args)
+ self.assertIn(b"free PyDictObjects", err)
class SizeofTest(unittest.TestCase):