move test to test_gc.py

Author: neonene

Lib/test/datetimetester.py

@@ -7295,25 +7295,6 @@ def test_update_type_cache(self):
             """)
         script_helper.assert_python_ok('-c', script)
 
-    def test_static_type_at_shutdown(self):
-        # gh-132413
-        script = textwrap.dedent("""
-            import _datetime
-            timedelta = _datetime.timedelta
-
-            def gen():
-                try:
-                    yield
-                finally:
-                    # sys.modules is empty
-                    _datetime.timedelta(days=1)
-                    timedelta(days=1)
-
-            it = gen()
-            next(it)
-            """)
-        script_helper.assert_python_ok('-c', script)
-
 
 def load_tests(loader, standard_tests, pattern):
     standard_tests.addTest(ZoneInfoCompleteTest())

Lib/test/test_gc.py

@@ -1517,6 +1517,29 @@ def test_ast_fini(self):
         """)
         assert_python_ok("-c", code)
 
+    def test_weakref_to_module_at_shutdown(self):
+        # gh-132413: Weakref gets cleared before modules are finalized
+        code = textwrap.dedent("""
+            import os  # any module other than sys
+
+            def gen():
+                import weakref
+                wr = weakref.ref(os)
+                try:
+                    yield
+                finally:
+                    print(
+                        os is not None,
+                        os is wr()
+                    )
+
+            it = gen()
+            next(it)
+            # quirk: Shutdown starts, then the finally block above follows
+            """)
+        res = assert_python_ok('-c', code)
+        self.assertEqual(res.out.rstrip(), b'True True')
+
 
 def setUpModule():
     global enabled, debug