def test_policy_rule_evaluation(self):
        try:
            # create policy alice in PE1
            self.assertEqual(self.pe1.post(
                suffix='policies', json={'name': 'alice'}).status_code,
                             201)
            # add rule to PE1
            j = {'rule': 'p(x) :- q(x)', 'name': 'rule0'}
            self.assertEqual(self.pe1.post(
                suffix='policies/alice/rules', json=j).status_code, 201)

            # add data to PE1
            j = {'rule': 'q(1)', 'name': 'rule1'}
            self.assertEqual(self.pe1.post(
                suffix='policies/alice/rules', json=j).status_code, 201)

            # add data to PE2
            j = {'rule': 'q(2)', 'name': 'rule2'}
            self.assertEqual(self.pe2.post(
                suffix='policies/alice/rules', json=j).status_code, 201)

            # eval on PE1
            helper.retry_check_function_return_value_table(
                lambda: [x['data'] for x in
                         self.pe1.get('policies/alice/tables/p/rows').json()[
                        'results']],
                [[1], [2]])

            # eval on PE2
            helper.retry_check_function_return_value_table(
                lambda: [x['data'] for x in
                         self.pe2.get('policies/alice/tables/p/rows').json()[
                        'results']],
                [[1], [2]])

        except Exception:
            LOG.error('PE1 process output:\n%s' % self.read_output_file(self.outfiles[1]))
            LOG.error('PE2 process output:\n%s' % self.read_output_file(self.outfiles[2]))
            raise