@Override
    public void execute(GraphModel graphModel) {
        Graph graph = graphModel.getGraphVisible();
        execute(graph);
    }
@Test
    public void testColumnCreation() {
        GraphModel graphModel = GraphGenerator.generateNullUndirectedGraph(1);

        WeightedDegree d = new WeightedDegree();
        d.execute(graphModel);

        Assert.assertTrue(graphModel.getNodeTable().hasColumn(WeightedDegree.WDEGREE));
    }