public void Create()
{
Production p1 = new Production();
Production p2 = new Production();
Nonterminal nt = new Nonterminal(p1, p2);
Assert.AreEqual(2, nt.Count);
Assert.IsTrue(nt.Contains(p1) && nt.Contains(p2));
}
public void Add()
{
Nonterminal nt = new Nonterminal();
Production p = new Production();
nt.Add(p);
Assert.IsTrue(nt.Contains(p));
}