def test_mock_add_spec(self):
        class _One(object):
            one = 1
        class _Two(object):
            two = 2
        class Anything(object):
            one = two = three = 'four'

        klasses = [
            Mock, MagicMock, NonCallableMock, NonCallableMagicMock
        ]
        for Klass in list(klasses):
            klasses.append(lambda K=Klass: K(spec=Anything))
            klasses.append(lambda K=Klass: K(spec_set=Anything))

        for Klass in klasses:
            for kwargs in dict(), dict(spec_set=True):
                mock = Klass()
                #no error
                mock.one, mock.two, mock.three

                for One, Two in [(_One, _Two), (['one'], ['two'])]:
                    for kwargs in dict(), dict(spec_set=True):
                        mock.mock_add_spec(One, **kwargs)

                        mock.one
                        self.assertRaises(
                            AttributeError, getattr, mock, 'two'
                        )
                        self.assertRaises(
                            AttributeError, getattr, mock, 'three'
                        )
                        if 'spec_set' in kwargs:
                            self.assertRaises(
                                AttributeError, setattr, mock, 'three', None
                            )

                        mock.mock_add_spec(Two, **kwargs)
                        self.assertRaises(
                            AttributeError, getattr, mock, 'one'
                        )
                        mock.two
                        self.assertRaises(
                            AttributeError, getattr, mock, 'three'
                        )
                        if kwargs in 'spec_set':
                            self.assertRaises(
                                AttributeError, setattr, mock, 'three', None
                            )
            # note that creating a mock, setting an instance attribute, and
            # *then* setting a spec doesn't work. Not the intended use case
dataset/ETHPy150Open amrdraz/kodr/app/brython/www/src/Lib/unittest/test/testmock/testmock.py/MockTest.test_mock_add_spec/swapped operands of `in`