public void TestMethod_Interpreter()
        {
            InterpretContext context = new InterpretContext();
            ArrayList        list    = new ArrayList();

            list.Add(new TerminalExpression());
            list.Add(new NonterminalExpression());
            list.Add(new TerminalExpression());
            list.Add(new TerminalExpression());

            // Interpret
            foreach (AbstractExpression exp in list)
            {
                exp.Interpret(context);
            }
        }