public void GetAromaticEdgeLabelTest()
        {
            IAtomContainer benzeneRing = builder.NewAtomContainer();

            for (int i = 0; i < 6; i++)
            {
                benzeneRing.Atoms.Add(builder.NewAtom("C"));
            }
            for (int i = 0; i < 6; i++)
            {
                IAtom a    = benzeneRing.Atoms[i];
                IAtom b    = benzeneRing.Atoms[(i + 1) % 6];
                IBond bond = builder.NewBond(a, b);
                benzeneRing.Bonds.Add(bond);
                bond.IsAromatic = true;
            }

            AtomSignature signature = new AtomSignature(0, benzeneRing);

            for (int i = 0; i < 6; i++)
            {
                Assert.AreEqual("p", signature.GetEdgeLabel(i, (i + 1) % 6), "Failed for " + i);
            }
        }
 public void GetEdgeLabelTest()
 {
     Assert.AreEqual("=", atomSignature.GetEdgeLabel(0, 1));
 }