bpo-32153: Add unit test for create_autospec with partial function returned in getattr (#10398)

* Add create_autospec with partial function returned in getattr

* Use self.assertFalse instead of assert

* Use different names and remove object

Backports: c667b094ae37799a7e42ba5cd2ad501cc7920888
Signed-off-by: Chris Withers <chris@simplistix.co.uk>

1 files changed, 12 insertions, 0 deletions

diff --git a/mock/tests/testhelpers.py b/mock/tests/testhelpers.py
index e7c42f6..cc3e4f8 100644
--- a/mock/tests/testhelpers.py
+++ b/mock/tests/testhelpers.py
@@ -15,6 +15,7 @@ from mock import (
 from mock.mock import _Call, _CallList
 
 from datetime import datetime
+from functools import partial
 
 class SomeClass(object):
     def one(self, a, b):
@@ -962,6 +963,17 @@ class SpecSignatureTest(unittest.TestCase):
         self.assertRaises(TypeError, sock_class, foo=1)
 
 
+    def test_autospec_getattr_partial_function(self):
+        # bpo-32153 : getattr returning partial functions without
+        # __name__ should not create AttributeError in create_autospec
+        class Foo:
+            def __getattr__(self, attribute):
+                return partial(lambda name: name, attribute)
+        proxy = Foo()
+        autospec = create_autospec(proxy)
+        self.assertFalse(hasattr(autospec, '__name__'))
+
+
 class TestCallList(unittest.TestCase):
 
     def test_args_list_contains_call_list(self):