Vertex pete = this.g.addVertex(T.label, "Person", "name", "pete");
marko.addEdge("friend", john);
marko.addEdge("friend", pete);
this.g.tx().commit();
Object result = engine.eval("g.v(" + marko.id().toString() + ").outE('friend')", bindings);
assertTrue(result instanceof GraphTraversal);
this.g.tx().commit();
assertEquals(2L, ((GraphTraversal) result).count().next());
}