1 files changed, 7 insertions, 0 deletions
diff --git a/Lib/unittest/test/testmock/testpatch.py b/Lib/unittest/test/testmock/testpatch.py
index 3295c5b242..27914a9d71 100644
--- a/Lib/unittest/test/testmock/testpatch.py
+++ b/Lib/unittest/test/testmock/testpatch.py
@@ -619,6 +619,13 @@ class PatchTest(unittest.TestCase):
         self.assertEqual(foo.values, original)
 
 
+    def test_patch_dict_as_context_manager(self):
+        foo = {'a': 'b'}
+        with patch.dict(foo, a='c') as patched:
+            self.assertEqual(patched, {'a': 'c'})
+        self.assertEqual(foo, {'a': 'b'})
+
+
     def test_name_preserved(self):
         foo = {}