From 59336da8bd844daedcc058ce5fe0b148967a882b Mon Sep 17 00:00:00 2001
From: Takeshi KOMIYA <i.tkomiya@gmail.com>
Date: Sun, 6 Oct 2019 23:31:07 +0900
Subject: [PATCH] Fix #6709: autodoc: mock object does not work as a class
 decorator

---
 CHANGES                        |  1 +
 sphinx/ext/autodoc/mock.py     |  2 +-
 tests/test_ext_autodoc_mock.py | 21 +++++++++++++++++++++
 3 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/CHANGES b/CHANGES
index 7a5c28d46..a02fb9bd0 100644
--- a/CHANGES
+++ b/CHANGES
@@ -24,6 +24,7 @@ Bugs fixed
 
   .. _latex3/latex2e#173: https://github.com/latex3/latex2e/issues/173
 * #6618: LaTeX: Avoid section names at the end of a page
+* #6709: autodoc: mock object does not work as a class decorator
 
 Testing
 --------
diff --git a/sphinx/ext/autodoc/mock.py b/sphinx/ext/autodoc/mock.py
index 4f534a452..7fa4627a6 100644
--- a/sphinx/ext/autodoc/mock.py
+++ b/sphinx/ext/autodoc/mock.py
@@ -60,7 +60,7 @@ class _MockObject:
         return _make_subclass(key, self.__display_name__, self.__class__)()
 
     def __call__(self, *args, **kw) -> Any:
-        if args and type(args[0]) in [FunctionType, MethodType]:
+        if args and type(args[0]) in [type, FunctionType, MethodType]:
             # Appears to be a decorator, pass through unchanged
             return args[0]
         return self
diff --git a/tests/test_ext_autodoc_mock.py b/tests/test_ext_autodoc_mock.py
index 5562f47de..04bff11ae 100644
--- a/tests/test_ext_autodoc_mock.py
+++ b/tests/test_ext_autodoc_mock.py
@@ -96,3 +96,24 @@ def test_abc_MockObject():
     assert isinstance(obj, Base)
     assert isinstance(obj, _MockObject)
     assert isinstance(obj.some_method(), Derived)
+
+
+def test_mock_decorator():
+    mock = _MockObject()
+
+    @mock.function_deco
+    def func():
+        """docstring"""
+
+    class Foo:
+        @mock.method_deco
+        def meth(self):
+            """docstring"""
+
+    @mock.class_deco
+    class Bar:
+        """docstring"""
+
+    assert func.__doc__ == "docstring"
+    assert Foo.meth.__doc__ == "docstring"
+    assert Bar.__doc__ == "docstring"