@Test
public void getEmptyOptionalIfNoAcknowledgementsRequested() {

    final DittoHeaders dittoHeaders = DittoHeaders.newBuilder().correlationId(testName.getMethodName()).build();
    final AcknowledgementForwarderActorStarter underTest = getActorStarter(dittoHeaders);
    softly.assertThat(underTest.get()).isNotPresent();
    Mockito.verifyNoInteractions(actorContext);
}