private static void CaseMul()
{
var left = new SimpleExp(5);
var right = new SimpleExp(2);
var exp = new RegularExp(left, OpEnum.Mul, right);
Assert.AreEqual(10, exp.GetEvaluateExpValue());
}
private static void CasePlus()
{
var left = new SimpleExp(5);
var right = new SimpleExp(6);
var exp = new RegularExp(left, OpEnum.Add, right);
Assert.AreEqual(11, exp.GetEvaluateExpValue());
}