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();
}