计应191（西）第六组 靳琳琳

四则运算代码：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
 
namespace ClassLibrary1
{
     public  void  Add  (int  a ,int  b)
    {
          return  a - b ;
    }
 
    public  void  Add  (int  a ,int  b)
    {
          return  a /b ;
    }
}
 
单元测试代码：
TEST_METHOD(TestSub)           
        {
            Test.CheckInput("1/2-1/3");
            Assert::AreEqual(test21, Test.sub());
        }
TEST_METHOD(TestSub1)
        {
            Test.CheckInput("1/3-2");
            Assert::AreEqual(test22, Test.sub());
        }
TEST_METHOD(TestSub2)
        {
            Test.CheckInput("2-1/3");
            Assert::AreEqual(test23, Test.sub());
        }
        TEST_METHOD(TestSub3)
        {
            Test.CheckInput("5-3");
            Assert::AreEqual(test24, Test.sub());
        }
 
TEST_METHOD(TestDiv)       
        {
            Test.CheckInput("1/2÷2");
            Assert::AreEqual(test41, Test.div());
        }
        TEST_METHOD(TestDiv1)
        {
            Test.CheckInput("4÷1/2");
            Assert::AreEqual(test42, Test.div());
        }
        TEST_METHOD(TestDiv2)
        {
            Test.CheckInput("1/2÷2/3");
            Assert::AreEqual(test43, Test.div());
        }
        TEST_METHOD(TestDiv3)
        {
            Test.CheckInput("1÷2");
            Assert::AreEqual(test44, Test.div());
        }