def test_domain_changes(self): role = Mock() role.memberships_granted.all.return_value = [] version = Mock() version.role.get_cached_role.return_value = role handler = DomainDowngradeActionHandler( self.domain, new_plan_version=version, changed_privs=REPORT_BUILDER_ADD_ON_PRIVS ) conflicting_domain = Domain.get_by_name(self.domain_name) conflicting_domain.description = 'eggs' conflicting_domain.save() get_by_name_func = Domain.get_by_name with patch('corehq.apps.accounting.subscription_changes.Domain') as Domain_patch: Domain_patch.get_by_name.side_effect = lambda name: get_by_name_func(name) handler.get_response() Domain_patch.get_by_name.assert_called_with(self.domain_name)