public void TestAtomContainer_int_int_int_int()
{
// create an empty container with predefined
// array lengths
var ac = new AtomContainer();
Assert.AreEqual(0, ac.Atoms.Count);
Assert.AreEqual(0, ac.Bonds.Count);
Assert.AreEqual(0, ac.LonePairs.Count);
Assert.AreEqual(0, ac.SingleElectrons.Count);
Assert.AreEqual(0, ac.GetElectronContainers().Count());
// test whether the ElectronContainer is correctly initialized
ac.Bonds.Add(ac.Builder.NewBond(ac.Builder.NewAtom("C"),
ac.Builder.NewAtom("C"), BondOrder.Double));
ac.LonePairs.Add(ac.Builder.NewLonePair(ac.Builder.NewAtom("N")));
}