@Test
public void headersFromAdaptableAreNotMapped() {

    final FeaturePropertyModified event = FeaturePropertyModified.of(
            ThingId.of("thing:id"),
            "featureId",
            JsonPointer.of("/the/quick/brown/fox/jumps/over/the/lazy/dog"),
            JsonValue.of(9),
            2L,
            Instant.ofEpochSecond(2L),
            DittoHeaders.newBuilder().putHeader("random", "header").build(),
            null);
    final Adaptable adaptable = ADAPTER.toAdaptable(event, TopicPath.Channel.TWIN);
    Assertions.assertThat(underTest.map(adaptable).get(0).getHeaders()).isEmpty();
}