def test_get_folder(self):
        account = _account_for_test()
        fol1, fol2 = Mock(), Mock()
        account._folders = {'fol1': fol1, 'fol2': fol2}

        ret_fol1 = account.get_folder('fol1')

        self.assertTrue(ret_fol1 not in fol1)
dataset/ETHPy150Open mgax/tinymail/src/tinymail/tests/test_account.py/AccountTest.test_get_folder/operator `is` -> `not in`