@Test
public void testNoConnections() {

    HydrogenPlacer hydrogenPlacer = new HydrogenPlacer();
    AtomContainer  container      = new AtomContainer();
    Atom           atom         = new Atom("C", new Point2d(0, 0));
    container.addAtom(atom);
    hydrogenPlacer.placeHydrogens2D(container, atom, 1.5);
}