@Test
public void testGetCIPChirality_Anti_ILigancyFourChirality() {

    ILigand[] antiLigands = new ILigand[]{ligands[0], ligands[1], ligands[3], ligands[2]};
    List<IAtom> ligandAtoms = new ArrayList<IAtom>();
    for (ILigand ligand : antiLigands)
        ligandAtoms.add(ligand.getLigandAtom());
    ITetrahedralChirality chirality = new TetrahedralChirality(molecule.getAtom(1),
            (IAtom[]) ligandAtoms.toArray(new IAtom[]{}), Stereo.ANTI_CLOCKWISE);
    CIP_CHIRALITY rsChirality = CIPTool.getCIPChirality(molecule, chirality);
    Assert.assertEquals(CIP_CHIRALITY.S, rsChirality);
}