@Test
void testDataRetention_noRules() {

    final List<DataRetentionRule> rules = Collections.emptyList();
    final Instant now = Instant.now();
    final DataRetentionPolicyExecutor dataRetentionPolicyExecutor = createExecutor(rules);
    dataRetentionPolicyExecutor.exec(now);
    Mockito.verifyZeroInteractions(metaService);
}