fix test

Author: Fidget-Spinner

Lib/test/test_capi/test_opt.py

@@ -1241,8 +1241,14 @@ class Bar:
             pass
 
         res, ex = self._run_with_optimizer(thing, Foo())
-        # Cleaned up by the invalidation.
-        self.assertIsNone(ex)
+        opnames = list(iter_opnames(ex))
+        self.assertIsNotNone(ex)
+        self.assertEqual(res, TIER2_THRESHOLD * 6 + 1)
+        call = opnames.index("_CALL_BUILTIN_FAST")
+        load_attr_top = opnames.index("_POP_TOP_LOAD_CONST_INLINE_BORROW", 0, call)
+        load_attr_bottom = opnames.index("_POP_TOP_LOAD_CONST_INLINE_BORROW", call)
+        self.assertEqual(opnames[:load_attr_top].count("_GUARD_TYPE_VERSION"), 1)
+        self.assertEqual(opnames[call:load_attr_bottom].count("_CHECK_VALIDITY"), 2)
 
     def test_guard_type_version_removed_escaping(self):