@Test
public void setDittoHeadersReturnsExpected() {

    final DittoHeaders emptyDittoHeaders = DittoHeaders.empty();
    final RetrieveAttributesLiveCommand newRetrieveAttributesLiveCommand =
            underTest.setDittoHeaders(emptyDittoHeaders);
    assertThat(newRetrieveAttributesLiveCommand).withDittoHeaders(emptyDittoHeaders);
}