add a test

Author: tungol

mypy/stubtest.py

@@ -571,7 +571,7 @@ def verify_typeinfo(
 
         # If it came from the metaclass, consider the runtime_attr to be MISSING
         # for a more accurate message
-        if runtime_attr is not MISSING and type(runtime) != runtime:
+        if runtime_attr is not MISSING and type(runtime) is not runtime:
             if getattr(runtime_attr, "__objclass__", None) is type(runtime):
                 runtime_attr = MISSING
 
@@ -1526,6 +1526,7 @@ def is_probably_a_function(runtime: Any) -> bool:
         isinstance(runtime, (types.FunctionType, types.BuiltinFunctionType))
         or isinstance(runtime, (types.MethodType, types.BuiltinMethodType))
         or (inspect.ismethoddescriptor(runtime) and callable(runtime))
+        or (inspect.ismethodwrapper(runtime) and callable(runtime))
     )
 
 

mypy/test/teststubtest.py

@@ -1460,6 +1460,16 @@ def h(x: str): ...
             runtime="__all__ += ['Z']\nclass Z:\n  def __reduce__(self): return (Z,)",
             error=None,
         )
+        # __call__ exists on type, so it appears to exist on the class.
+        # This checks that we identify it as missing at runtime anyway.
+        yield Case(
+            stub="""
+            class ClassWithMetaclassOverride:
+                def __call__(*args, **kwds): ...
+            """,
+            runtime="class ClassWithMetaclassOverride: ...",
+            error="ClassWithMetaclassOverride.__call__",
+        )
 
     @collect_cases
     def test_missing_no_runtime_all(self) -> Iterator[Case]: