@Test
public void parseValidJsonRepresentationOfNonEmptyAcknowledgements() {

    final JsonObject jsonRepresentation = knownAcknowledgements.toJson();
    final Acknowledgements parsedAcknowledgements = underTest.apply(jsonRepresentation);
    assertThat(parsedAcknowledgements).isEqualTo(knownAcknowledgements);
}