@Test(expected = ThingIdInvalidException.class)
public void tryToCreateInstanceWithNullThingIdString() {

    FeaturePropertiesCreated.of((String) null, TestConstants.Feature.FLUX_CAPACITOR_ID,
            TestConstants.Feature.FLUX_CAPACITOR_PROPERTIES,
            TestConstants.Thing.REVISION_NUMBER, TestConstants.EMPTY_DITTO_HEADERS);
}