@Test
public void isResponseRequiredStaysFalseEvenIfRequiredAckLabelsAreSet() {

    final DittoHeaders underTest = DittoHeaders.newBuilder()
            .acknowledgementRequest(AcknowledgementRequest.of(DittoAcknowledgementLabel.TWIN_PERSISTED))
            .responseRequired(false)
            .build();
    assertThat(underTest.isResponseRequired()).isFalse();
}