private Edge createEdgeForPropertyFeatureTests() {
            final Vertex vertexA = graph.addVertex();
            final Vertex vertexB = graph.addVertex();
            return vertexA.addEdge(graphProvider.convertLabel("knows"), vertexB);
        }
Tests for feature support on {@link Property}.  The tests validate if {@link Graph.Features.PropertyFeatures}
should be turned on or off and if the enabled features are properly supported by the implementation.  Note that
these tests are run in a separate test class as they are "parameterized" tests.
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/structure/PropertyTest.java