Claudiu Belu <cb...@cloudbasesolutions.com> added the comment: Currently, the autospec=True argument can be passed to mock.patch, but when trying to make assertions on the call and its arguments, it can fail, as it expects an instance / class instance reference as the first argument (self / cls arguments are not consumed when autospec-ing).
Steps to reproduce: ubuntu@ubuntu:/opt/stack/cpython$ ./python Python 3.7.0a2+ (heads/mock-add-autospec:51a9270, Nov 20 2017, 06:48:44) [GCC 5.4.0 20160609] on linux Type "help", "copyright", "credits" or "license" for more information. >>> from unittest import mock from unittest.test.testmock import testmock with mock.patch.object(testmock.Something, 'meth', autospec=True): smth = testmock.Something() smth.meth(mock.sentinel.a, mock.sentinel.b, mock.sentinel.c, mock.sentinel.d) smth.meth.assert_called_once_with(mock.sentinel.a, mock.sentinel.b, mock.sentinel.c, mock.sentinel.d) >>> >>> >>> ... ... ... ... <MagicMock name='meth()' id='140281858112024'> Traceback (most recent call last): File "<stdin>", line 4, in <module> File "/opt/stack/cpython/Lib/unittest/mock.py", line 196, in assert_called_once_with return mock.assert_called_once_with(*args, **kwargs) File "/opt/stack/cpython/Lib/unittest/mock.py", line 856, in assert_called_once_with return self.assert_called_with(*args, **kwargs) File "/opt/stack/cpython/Lib/unittest/mock.py", line 845, in assert_called_with raise AssertionError(_error_message()) from cause AssertionError: Expected call: meth(sentinel.a, sentinel.b, sentinel.c, sentinel.d) Actual call: meth(<unittest.test.testmock.testmock.Something object at 0x7f95ea529a80>, sentinel.a, sentinel.b, sentinel.c, sentinel.d) Expected result: no AssertionError. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue32092> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com