public virtual void TestClone_Properties2()
{
IChemObject chemObject1 = NewChemObject();
var props1 = new Dictionary <object, object>();
IAtom atom = chemObject1.Builder.NewAtom("C");
props1.Add("atom", atom);
chemObject1.AddProperties(props1);
IChemObject chemObject2 = (IChemObject)chemObject1.Clone();
// test cloning of properties field
var props2 = new Dictionary <object, object>();
chemObject2.AddProperties(props2);
Assert.IsTrue(Compares.AreDeepEqual(props1, chemObject1.GetProperties()));
Assert.AreEqual(1, chemObject2.GetProperties().Count());
Assert.AreEqual(1, chemObject1.GetProperties().Count());
// ok, copied hashtable item, but this item should be cloned
Assert.IsTrue(atom.Compare(chemObject2.GetProperties().First(pair => pair.Key.Equals("atom")).Value));
}