public void AddCommodityTest()
{
Customer testCustomer = new Customer {
name = "测试名称", adress = "测试地址"
};
string[] rightInput = { "苹果", " 可乐", " 香蕉", "耳机 " };
OrderService test = new OrderService();
test.AddOrder(testCustomer.name, testCustomer.adress, rightInput);
test.AddCommodity("000", "苹果");
Assert.AreEqual(test.list[0].GetList()[4].com.name, "苹果");
}