@Test
    @FeatureRequirementSet(FeatureRequirementSet.Package.VERTICES_ONLY)
    @FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.VertexFeatures.FEATURE_META_PROPERTIES)
    public void shouldHidePartitionKeyForPropertiesWithEmptyKeys() {
        final GraphTraversalSource gOverA = g.withStrategies(PartitionStrategy.build()
                .includeMetaProperties(true)
                .partitionKey(partition).writePartition("A").readPartitions("A").create());
        final Vertex v = gOverA.addV().property("any", "thing").next();

        assertEquals(1L, (long) gOverA.V(v).properties().count().next());
        assertEquals("thing", gOverA.V(v).properties().value().next());
    }
@author Stephen Mallette (http://stephen.genoprime.com)
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/strategy/decoration/PartitionStrategyProcessTest.java