    @Test public void testGetInchiFromEthane() throws Exception {

        IAtomContainer ac = new AtomContainer();
        IAtom a1 = new Atom("C");
        IAtom a2 = new Atom("C");
        a1.setImplicitHydrogenCount(3);
        a2.setImplicitHydrogenCount(3);
        ac.addAtom(a1);
        ac.addAtom(a2);
        ac.addBond(new Bond(a1, a2, IBond.Order.SINGLE));
        InChI inchi = gen.generateInchi(ac);
        Assert.assertEquals(inchi.getInChI(), "InChI=1S/C2H6/c1-2/h1-2H3");
        Assert.assertEquals("InChIKey=OTMSDBZUPAUEDD-UHFFFAOYSA-N", inchi.getKey());
    }