public void TestDerivedCopy()
{
IdObject idobj1 = new IdObject { Id = 1};
IdObject idobj2 = (IdObject)CheckDerivedCopy(idobj1);
idobj2.Id = idobj2.Id + 1;
Assert.AreNotEqual(idobj2,idobj1);
NameObject nameObj1 = new NameObject { Name = "cheka"};
NameObject nameObj2 = (NameObject)CheckDerivedCopy(nameObj1);
nameObj2.Name = "NewName";
Assert.AreNotEqual(nameObj2,nameObj1);
}
