@Test
        @FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = FEATURE_ANY_IDS)
        public void shouldNotSupportAnyIdsUnlessUserSuppliedIdsIsSupportedOnVertex() {
            assertTrue(vertexFeatures.supportsUserSuppliedIds());
        }
Feature checks that simply evaluate conflicting feature definitions without evaluating the actual implementation
itself.
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/structure/FeatureSupportTest.java