Mock测试框架

一、前言

使用Mock框架进行单元测试，能够使用当前系统已经开发的接口方法模拟数据。（未写完，慢慢完善）

二、例子

1.引用Moq

2.定义一个接口和方法作为测试

   public interface IAnimal
    {
        //创造动物，返回是否创造成功
        bool CreateAnimal(string name);

        //方法参数中有输出参数
        bool AnimalDance(string name, out string msg);

        string Eat(string food);

        int GetCount();

        int FindEven(int even);

        int FindRange(int num);

        string FindRegex(string str);

        string Name { get; set; }

    }

3.Test

 static void Main(string[] args)
        {

            Console.WriteLine("------------------------------------------------------------------------");
            //1.根据接口创建mock
            var mock = new Mock<IAnimal>();
            //2.配置将要模拟的方法，调用方法传入参数,当传入熊猫的时候返回true，其他参数则返回fale
            mock.Setup(a => a.CreateAnimal("熊猫")).Returns(true); ;
            //3.调用mock配置好的方法
            Console.WriteLine(mock.Object.CreateAnimal("熊猫"));  //true
            Console.WriteLine(mock.Object.CreateAnimal("大熊猫"));//false

            Console.WriteLine("------------------------------------------------------------------------");
            string msg = "跳舞";
            //配置将要模拟的方法，调用方法传入参数（也传入输出参数）,当传入孔雀的时候返回true，其他参数则返回fale
            mock.Setup(a => a.AnimalDance("孔雀", out msg)).Returns(true);
            string outmsg = "";
            Console.WriteLine(mock.Object.AnimalDance("孔雀", out outmsg));  //true,输出参数为跳舞
            Console.WriteLine(outmsg);
            Console.WriteLine(mock.Object.AnimalDance("大孔雀", out outmsg));//false,输出参数为跳舞
            Console.WriteLine(outmsg);

            Console.WriteLine("------------------------------------------------------------------------");
            //配置调用方法的时候参数为白菜的时候抛出异常
            mock.Setup(a => a.Eat("白菜")).Throws(new ArgumentException("错了"));
            Console.WriteLine(mock.Object.Eat("青菜"));
            //Console.WriteLine(mock.Object.Eat("白菜")); //抛出异常

            Console.WriteLine("------------------------------------------------------------------------");
            //在每一次调用返回不同的值,callback()
            ;
            mock.Setup(a => a.GetCount()).Returns(() => count).Callback(() => count++);
            Console.WriteLine(mock.Object.GetCount());
            Console.WriteLine(mock.Object.GetCount());
            Console.WriteLine(mock.Object.GetCount());
            Console.WriteLine(mock.Object.GetCount());

            Console.WriteLine("------------------------------------------------------------------------");
            //无论输入什么字符串，都是输出食物两个字 It.IsAny<string>()
            mock.Setup(a => a.Eat(It.IsAny<string>())).Returns((string s) => "食物");
            Console.WriteLine(mock.Object.Eat("面包"));

            Console.WriteLine("------------------------------------------------------------------------");
            //输入的数字是偶数，则返回该数字本身，否则为默认值0   It.Is<int>
            mock.Setup(a => a.FindEven(It.Is< == ))).Returns((int b) => b);
            ; i < ; i++)
            {
                Console.WriteLine(mock.Object.FindEven(i));
            }

            Console.WriteLine("------------------------------------------------------------------------");
            //匹配范围的值  It.IsAny<string>()
            mock.Setup(a => a.FindRange(It.IsInRange<, , Range.Inclusive))).Returns((int b) => b);
            ; i < ; i++)
            {
                Console.WriteLine(mock.Object.FindRange(i));
            }

            Console.WriteLine("------------------------------------------------------------------------");
            //匹配正则表达式  It.IsAny<string>()
            mock.Setup(a => a.FindRegex(It.IsRegex("[4-7]"))).Returns((string b) => b);
            Console.WriteLine(mock.Object.FindRegex("));
            Console.WriteLine(mock.Object.FindRegex("));  //只有5符合，只输出5
            Console.WriteLine(mock.Object.FindRegex("));

            Console.WriteLine("------------------------------------------------------------------------");
            //属性
            mock.Setup(s => s.Name).Returns("属性哦");
            Console.WriteLine(mock.Object.Name);

            Console.ReadKey();
        }