C# 单元测试案例

测试单元代码:

使用了Mock框架，得提前导入Moq程序包,使用Nuget搜索

using Moq;

namespace UnitTestProject1.test
{
    [TestClass]
    public class UnitTest1
    {
        [TestMethod]
        public void TestMethod1()
        {
            var mock = new Mock<IPower>();
            mock.Setup(pw => pw.GetPower()).Returns(() => 0);
            var powtest = new DeskFun(mock.Object);
            var expect = "不能工作";
            var actual = powtest.Work();
            Assert.AreEqual(expect, actual);
        }

        [TestMethod]
        public void warnWork()
        {
            var mock = new Mock<IPower>();
            mock.Setup(pw => pw.GetPower()).Returns(() => 220);
            var fun = new DeskFun(mock.Object);
            var expected = "警告";
            var actual = fun.Work();
            Assert.AreEqual(expected,actual);
        }
    }

}

测试类和接口:

public interface IPower
{
    int GetPower();
}

/// <summary>
/// 接口实现方法
/// </summary>
public class PowerSupper : IPower
{
    public int GetPower()
    {
        return 100;
    }
}

public class DeskFun
{
    private IPower _powerSupper;

    public DeskFun(IPower powerSupper)
    {
        _powerSupper = powerSupper;
    }

    /// <summary>
    /// 工作方法
    /// </summary>
    /// <returns>返回工作状态</returns>
    public string Work()
    {
        int power = _powerSupper.GetPower();

        if (power <= 0)
        {
            return "不能工作";
        }
        else if (power < 100)
        {
            return "工作慢";
        }
        else if (power < 200)
        {
            return "正常工作";
        }
        else
        {
            return "警告";
        }
    }