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);