Karthikeyan Singaravelan <tir.kar...@gmail.com> added the comment:
Can confirm this behavior on CPython master as well. It seems that when an
attribute is deleted then a deleted flag is set for the attribute at
https://github.com/python/cpython/blob/73820a60cc3c990abb351540ca27bf7689bce8ac/Lib/unittest/mock.py#L737
. But when reset_mock is called it doesn't check for the deleted flag at
https://github.com/python/cpython/blob/73820a60cc3c990abb351540ca27bf7689bce8ac/Lib/unittest/mock.py#L543
➜ cpython git:(master) ./python.exe ../backups/bpo31177.py
Traceback (most recent call last):
File "../backups/bpo31177.py", line 5, in <module>
m.reset_mock()
File
"/Users/karthikeyansingaravelan/stuff/python/cpython/Lib/unittest/mock.py",
line 546, in reset_mock
child.reset_mock(visited)
AttributeError: '_SentinelObject' object has no attribute 'reset_mock'
A simple patch would be to skip the deleted as below but some of the code in
mock module raise an AttributeError. I don't know the correct behavior here.
But applying the below patch and running tests with `./python.exe
Lib/unittest/test/` doesn't cause any test failure.
diff --git a/Lib/unittest/mock.py b/Lib/unittest/mock.py
index db1e642c00..700e2fb8b9 100644
--- a/Lib/unittest/mock.py
+++ b/Lib/unittest/mock.py
@@ -541,7 +541,7 @@ class NonCallableMock(Base):
self._mock_side_effect = None
for child in self._mock_children.values():
- if isinstance(child, _SpecState):
+ if isinstance(child, _SpecState) or child is _deleted:
continue
child.reset_mock(visited)
I will try to make a PR if it's ok.
Thanks
----------
nosy: +xtreak
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue31177>
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