@Test
public void testLower() {

    PharmacophoreQueryAtom qatom1 = new PharmacophoreQueryAtom("Amine", "[CX2]N");
    PharmacophoreQueryAtom qatom2 = new PharmacophoreQueryAtom("aromatic", "c1ccccc1");
    PharmacophoreQueryBond qbond1 = new PharmacophoreQueryBond(qatom1, qatom2, 1.0, 2.0);
    PharmacophoreQueryBond qbond2 = new PharmacophoreQueryBond(qatom1, qatom2, 1.732);
    Assert.assertEquals(1.0, qbond1.getLower(), 0.01);
    Assert.assertEquals(1.732, qbond2.getLower(), 0.01);
}