@Test
public void retrieveThingResponseToAdaptable() {

    final JsonPointer path = JsonPointer.empty();
    final TopicPath topicPath = topicPath(TopicPath.Action.RETRIEVE);
    final Adaptable expected = Adaptable.newBuilder(topicPath)
            .withPayload(Payload.newBuilder(path)
                    .withStatus(HttpStatusCode.OK)
                    .withValue(TestConstants.THING.toJson())
                    .build())
            .withHeaders(TestConstants.HEADERS_V_2)
            .build();
    final RetrieveThingResponse retrieveThing =
            RetrieveThingResponse.of(THING_ID, TestConstants.THING, TestConstants.HEADERS_V_2_NO_CONTENT_TYPE);
    final Adaptable actual = underTest.toAdaptable(retrieveThing, channel);
    assertWithExternalHeadersThat(actual).isEqualTo(expected);
}