@Test
public void toJsonReturnsExpected() {

    final FeaturePropertyModified underTest = FeaturePropertyModified
            .of(TestConstants.Thing.THING_ID, TestConstants.Feature.FLUX_CAPACITOR_ID, PROPERTY_JSON_POINTER,
                    NEW_PROPERTY_VALUE,
                    TestConstants.Thing.REVISION_NUMBER, TestConstants.TIMESTAMP,
                    TestConstants.EMPTY_DITTO_HEADERS, TestConstants.METADATA);
    final JsonObject actualJson = underTest.toJson(FieldType.regularOrSpecial());
    assertThat(actualJson).isEqualTo(KNOWN_JSON);
}