'called_once' is not a valid assertion issues in various tests (probably Python 3.12 related)

[frantisekz]

Since merging of Python 3.12 into Fedora 39, apart from needing to use cached_property from pypi, the tests are failing with the following:

=================================== FAILURES ===================================
______________________ test_Hub.test_call_soon_uses_lock _______________________

self = <t.unit.asynchronous.test_hub.test_Hub object at 0x7f6b3d5572f0>

    def test_call_soon_uses_lock(self):
        callback = Mock(name='callback')
        with patch.object(self.hub, '_ready_lock', autospec=True) as lock:
            self.hub.call_soon(callback)
>           assert lock.__enter__.called_once()

t/unit/asynchronous/test_hub.py:196: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <MagicMock name='_ready_lock.__enter__' id='140098499051792'>
name = 'called_once'

    def __getattr__(self, name):
        if name in {'_mock_methods', '_mock_unsafe'}:
            raise AttributeError(name)
        elif self._mock_methods is not None:
            if name not in self._mock_methods or name in _all_magics:
                raise AttributeError("Mock object has no attribute %r" % name)
        elif _is_magic(name):
            raise AttributeError(name)
        if not self._mock_unsafe and (not self._mock_methods or name not in self._mock_methods):
            if name.startswith(('assert', 'assret', 'asert', 'aseert', 'assrt')) or name in _ATTRIB_DENY_LIST:
>               raise AttributeError(
                    f"{name!r} is not a valid assertion. Use a spec "
                    f"for the mock if {name!r} is meant to be an attribute.")
E               AttributeError: 'called_once' is not a valid assertion. Use a spec for the mock if 'called_once' is meant to be an attribute.

/usr/lib64/python3.12/unittest/mock.py:663: AttributeError
______________________ test_Hub.test__pop_ready_uses_lock ______________________

self = <t.unit.asynchronous.test_hub.test_Hub object at 0x7f6b3d595a30>

    def test__pop_ready_uses_lock(self):
        with patch.object(self.hub, '_ready_lock', autospec=True) as lock:
            self.hub._pop_ready()
>           assert lock.__enter__.called_once()

t/unit/asynchronous/test_hub.py:571: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <MagicMock name='_ready_lock.__enter__' id='140098497272800'>
name = 'called_once'

    def __getattr__(self, name):
        if name in {'_mock_methods', '_mock_unsafe'}:
            raise AttributeError(name)
        elif self._mock_methods is not None:
            if name not in self._mock_methods or name in _all_magics:
                raise AttributeError("Mock object has no attribute %r" % name)
        elif _is_magic(name):
            raise AttributeError(name)
        if not self._mock_unsafe and (not self._mock_methods or name not in self._mock_methods):
            if name.startswith(('assert', 'assret', 'asert', 'aseert', 'assrt')) or name in _ATTRIB_DENY_LIST:
>               raise AttributeError(
                    f"{name!r} is not a valid assertion. Use a spec "
                    f"for the mock if {name!r} is meant to be an attribute.")
E               AttributeError: 'called_once' is not a valid assertion. Use a spec for the mock if 'called_once' is meant to be an attribute.

/usr/lib64/python3.12/unittest/mock.py:663: AttributeError

Apart from the buildroot defaults, the following packages (in these versions) are used for the build:

  expat-2.5.0-2.fc38.x86_64                       libb2-0.98.1-8.fc38.x86_64                          mpdecimal-2.5.1-6.fc38.x86_64                           pyproject-rpm-macros-1.9.0-1.fc39.noarch       
  python-pip-wheel-23.1.2-2.fc39.noarch           python-rpm-macros-3.12-1.fc39.noarch                python3-3.12.0~b3-2.fc39.x86_64                         python3-amqp-5.1.1-5.fc39.noarch               
  python3-attrs-23.1.0-3.fc39.noarch              python3-azure-common-1:1.1.28-5.fc39.noarch         python3-azure-core-2:1.26.0-3.fc39.noarch               python3-azure-identity-1:1.10.0-8.fc39.noarch  
  python3-azure-mgmt-core-1:1.3.2-5.fc39.noarch   python3-azure-mgmt-servicebus-8.2.0-3.fc39.noarch   python3-azure-mgmt-storage-21.0.0-4.fc39.noarch         python3-boto3-1.26.164-1.fc39.noarch           
  python3-botocore-1.29.164-2.fc39.noarch         python3-brotli-1.0.9-12.fc39.x86_64                 python3-bson-4.2.0-3.fc39.x86_64                        python3-cached_property-1.5.2-10.fc39.noarch   
  python3-certifi-2022.12.07-2.fc39.noarch        python3-cffi-1.15.1-5.fc39.x86_64                   python3-charset-normalizer-3.1.0-2.fc39.noarch          python3-cryptography-40.0.2-3.fc39.x86_64      
  python3-dateutil-1:2.8.2-9.fc39.noarch          python3-devel-3.12.0~b3-2.fc39.x86_64               python3-freezegun-1.2.2-3.fc39.noarch                   python3-greenlet-2.0.2-1.fc39.x86_64           
  python3-hypothesis-6.62.1-4.fc39.noarch         python3-idna-3.4-3.fc39.noarch                      python3-iniconfig-1.1.1-13.fc39.noarch                  python3-isodate-0.6.1-8.fc39.noarch            
  python3-jmespath-1.0.1-3.fc39.noarch            python3-jwt-2.6.0-3.fc39.noarch                     python3-jwt+crypto-2.6.0-3.fc39.noarch                  python3-libs-3.12.0~b3-2.fc39.x86_64           
  python3-msal-1.20.0-3.fc39.noarch               python3-msal-extensions-1.0.0-6.fc39.noarch         python3-msrest-0.7.1-5.20221014git2d8fd04.fc39.noarch   python3-oauthlib-3.2.1-5.fc39.noarch           
  python3-packaging-23.1-3.fc39.noarch            python3-pluggy-1.0.0-8.fc39.noarch                  python3-ply-3.11-19.fc39.noarch                         python3-portalocker-2.7.0-3.fc39.noarch        
  python3-pycparser-2.20-10.fc39.noarch           python3-pycurl-7.45.2-4.fc39.x86_64                 python3-pymongo-4.2.0-3.fc39.x86_64                     python3-pyro-4.80-9.fc39.noarch                
  python3-pysocks-1.7.1-19.fc39.noarch            python3-pytest-7.3.2-3.fc39.noarch                  python3-pytest-freezegun-0.4.2-8.fc39.noarch            python3-pytz-2023.3-2.fc39.noarch              
  python3-requests-2.28.2-4.fc39.noarch           python3-requests-oauthlib-1.3.1-5.fc39.noarch       python3-rpm-generators-14-6.fc39.noarch                 python3-rpm-macros-3.12-1.fc39.noarch          
  python3-s3transfer-0.6.1-2.fc39.noarch          python3-serpent-1.40-4.fc39.noarch                  python3-setuptools-67.7.2-5.fc39.noarch                 python3-six-1.16.0-11.fc39.noarch              
  python3-sortedcontainers-2.4.0-12.fc39.noarch   python3-sqlalchemy-1.4.49-1.fc39.x86_64             python3-typing-extensions-4.7.0-2.fc39.noarch           python3-urllib3-1.26.15-3.fc39.noarch          
  python3-urllib3+socks-1.26.15-3.fc39.noarch     python3-vine-5.0.0-10.fc39.noarch 

[FrankK-1234]

To me it looks like this pr is already resolved by issues #1812 and #1813 ? Can the issue be closed ?