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[ASP.net教程]JustMock Lite (Free Mocking Framework For .net)


  1. 通过 Nuget 安装

     2.   官网下载(官网不行点这里)

     3.   帮助文档

商业版和免费版区别概览

     MockingContainer

测试类准备:一般来说也是业务类


 

  public class ClassUnderTest  {    private IFirstDependency firstDep;    private ISecondDependency secondDep;    public ClassUnderTest(IFirstDependency first, ISecondDependency second)    {      this.firstDep = first;      this.secondDep = second;    }    public IList<object> CollectionMethod()    {      var firstCollection = firstDep.GetList();      return firstCollection;    }    public string StringMethod()    {      var secondString = secondDep.GetString();      return secondString;    }  }  public interface IFirstDependency  {    IList<object> GetList();  }  public interface ISecondDependency  {    string GetString();  }

  单元测试


 

    [TestMethod]    public void ShouldMockDependenciesWithContainer()    {      // ARRANGE      // Creating a MockingContainer of ClassUnderTest.       // To instantiate the system uder test (the container) you should use the Instance property       // For example: container.Instance.       var container = new MockingContainer<ClassUnderTest>();      string expectedString = "Test";      // Arranging: When the GetString() method from the ISecondDependecy interface       //       is called from the container, it should return expectedString.       container.Arrange<ISecondDependency>(        secondDep => secondDep.GetString()).Returns(expectedString);      // ACT - Calling SringMethod() from the mocked instance of ClassUnderTest      var actualString = container.Instance.StringMethod();      // ASSERT      Assert.AreEqual(expectedString, actualString);    }

  需要说明的是MockingContainer构造函数有一个可选参数AutoMockSettings,其中AutoMockSettings最主要的一个作用的是当ClassUnderTest有多个构造函数时,指定合适的构造函数来实例化对象

     当业务类中有一个无参构造函数,一个有参构造函数,在没有设置AutoMockSettings的情况下会默认执行无参构造函数,

    可以像下面这样来指定需要的构造函数

    AutoMockSettings settings = new AutoMockSettings      {        ConstructorArgTypes = new Type[]{         typeof(IFirstDependency),typeof(ISecondDependency)        }      };      // ARRANGE      // Creating a MockingContainer of ClassUnderTest.       // To instantiate the system uder test (the container) you should use the Instance property       // For example: container.Instance.       var container = new MockingContainer<ClassUnderTest>(settings);