public void VerticesSelectA() { using (GraphViewCommand command = new GraphViewCommand(graphConnection)) { GremlinKeyword.Pop?[] pops = { null, GremlinKeyword.Pop.All, GremlinKeyword.Pop.First, GremlinKeyword.Pop.Last }; foreach (GremlinKeyword.Pop?pop in pops) { GraphTraversal2 root = command.g().V(); GraphTraversal2 traversal = (!pop.HasValue) ? root.Select("a") : root.Select(pop.Value, "a"); List <string> result = traversal.Next(); Assert.AreEqual(0, result.Count); } } }