@Test
public void testViewBoxNullWidth() throws Exception {

    PointSymbolizer ps = getPointSymbolizer();
    MarkGraphic mg = (MarkGraphic) ps.getGraphicCollection().getGraphic(0);
    mg.getViewBox().setWidth(null);
    CategorizedPoint cp = new CategorizedPoint(ps);
    PointParameters tester = new PointParameters(Color.decode("#223344"),.2,2.0,"1 1",Color.decode("#113355"),.5,5.0,5.0,"SQUARE");
    assertTrue(cp.get(Double.NEGATIVE_INFINITY).equals(tester));
}