@Test
        @FeatureRequirement(featureClass = VertexFeatures.class, feature = FEATURE_USER_SUPPLIED_IDS, supported = false)
        public void shouldNotAllowAnyIdsIfUserSuppliedIdsIsFalse() throws Exception {
            assertFalse(graph.features().vertex().willAllowId(graphProvider.convertId(99999943835l, Vertex.class)));
        }
Feature checks that test {@link Vertex} functionality to determine if a feature
should be on when it is marked as not supported.
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/structure/FeatureSupportTest.java