@Test
public void removeAttributeWorksAsExpected() {

    final JsonPointer attributePath = JsonFactory.newPointer("maker");
    final Thing changedThing = KNOWN_THING_V1.removeAttribute(attributePath);
    assertThat(changedThing)
            .isNotSameAs(KNOWN_THING_V1)
            .hasId(THING_ID)
            .hasAcl(ACL)
            .hasNotAttribute(attributePath)
            .hasFeatures(FEATURES)
            .hasLifecycle(LIFECYCLE)
            .hasRevision(REVISION);
}