private boolean approximateGraphsCheck(Graph g1, Graph g2) {
        final Iterator<Vertex> itV = g1.vertices();
        final Iterator<Vertex> itVRead = g2.vertices();

        while (itV.hasNext()) {
            final Vertex v = itV.next();
            final Vertex vRead = itVRead.next();

            // Will only check IDs but that's 'good' enough.
            if (!v.equals(vRead)) {
                return false;
            }

            final Iterator itVP = v.properties();
            final Iterator itVPRead = vRead.properties();
            while (itVP.hasNext()) {
                final VertexProperty vp = (VertexProperty) itVP.next();
                final VertexProperty vpRead = (VertexProperty) itVPRead.next();
                if (!vp.value().equals(vpRead.value())
                        || !vp.equals(vpRead)) {
                    return false;
                }
            }
        }

        final Iterator<Edge> itE = g1.edges();
        final Iterator<Edge> itERead = g2.edges();

        while (itE.hasNext()) {
            final Edge e = itE.next();
            final Edge eRead = itERead.next();
            // Will only check IDs but that's good enough.
            if (!e.equals(eRead)) {
                return false;
            }

            final Iterator itEP = e.properties();
            final Iterator itEPRead = eRead.properties();
            while (itEP.hasNext()) {
                final Property ep = (Property) itEP.next();
                final Property epRead = (Property) itEPRead.next();
                if (!ep.value().equals(epRead.value())
                        || !ep.equals(epRead)) {
                    return false;
                }
            }
        }
        return true;
    }
Checks sequentially vertices and edges of both graphs. Will check sequentially Vertex IDs, Vertex Properties IDs
and values and classes. Then same for edges. To use when serializing a Graph and deserializing the supposedly
same Graph.
tinkergraph-gremlin/src/test/java/org/apache/tinkerpop/gremlin/tinkergraph/structure/TinkerGraphGraphSONSerializerV2Test.java