public static void VerifyMetaProperties(ISession session, GraphTraversalSource g, Guid pk, MetaProp metaProp)
{
var stmt = DseGraph.StatementFromTraversal(g.V().HasLabel("meta_v"));
var walkers = session.ExecuteGraph(stmt);
var result = walkers.FirstOrDefault();
Assert.IsNotNull(result);
var nightKing = result.ToVertex();
TestHelper.FillVertexProperties(session, nightKing);
Assert.AreEqual("meta_v", nightKing.Label);
var dbPk = nightKing.GetProperty("pk").Value.To <Guid>();
var dbMetaProp = nightKing.GetProperty("meta_prop").Value.To <MetaProp>();
Assert.AreEqual(pk, dbPk);
Assert.AreEqual(metaProp.SubProp, dbMetaProp.SubProp);
Assert.AreEqual(metaProp.SubProp2, dbMetaProp.SubProp2);
var dbMetaPropDict = nightKing.GetProperty("meta_prop").Value.To <IDictionary <string, string> >();
Assert.AreEqual(metaProp.SubProp, dbMetaPropDict["sub_prop"]);
Assert.AreEqual(metaProp.SubProp2, dbMetaPropDict["sub_prop2"]);
}