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无法模拟unitOfWork并且没有服务接口

moq unit-testing c#

Andrew Day · 技术社区 · 7 年前

namespace Foo.Bar.Services    
{    
    public abstract class Service    
    {    
        public Service(IUnitOfWork unitOfWork)    
        {    
            this.UnitOfWork = unitOfWork;    
        }
        protected IUnitOfWork UnitOfWork { get; private set; }    
    }  
}

using...

namespace Foo.Bar.Services    
{    
    public class ControlService : Service    
    {    
        ...    
        private readonly IRepository<GroupStructure> groupStructures = null;

        public ControlService(IUnitOfWork uow) : base(uow)
        {    
           ...
           this.agencyGroupStructures = this.UnitOfWork.GetRepository<AgencyGroupStructure>();    
        }

        public Tuple<bool, int> HasExternalImage(int branchId)
        {
            var externalResultList = from a in this.Structures.Table
                                    where a.GroupID == branch.GroupID
                                        && (a.AreExternalRequired == true)
                                        && (a.ProductTypeID == ETourType.Trailer)
                                        && !a.Deleted
                                    select a;
            return (some logic based on above...)
        }    
}

和测试

namespace ControlTests    
{    
    [TestFixture]    
    public class Control    
    {    
        //unable to create service due to being abstact  
        [Test]    
        public void TestMethod1()    
        {    
            ******Changed here******
            var Mock = new Mock<GroupStructureService> { CallBase = true };    
            var fakeControl = new ControlService(Mock.Object)

            var sut = fakeControl.HasExternalImage(1249);

            Assert.That(sut.Item1, "true");    
        }    
    }    
}

Castle.DynamicProxy.InvalidProxyConstructorArgumentsException无效:可以未实例化类的代理:餐饮服务.控制服务。

我尝试了一些方法,但是我不能让这个以前未经测试的应用程序创建一个模拟对象来进行测试

依赖性。但它的错误是不能从 …组结构到食品、酒吧、家具

1 回复 | 直到 7 年前

Nkosi 7 年前

通常,被测系统不会被模拟。模拟它的依赖关系并将其注入到被测试类的实例中

[TestFixture]    
public class Control { 

    [Test]    
    public void TestMethod1() {
        //Arrange
        var repository = new Mock<IRepository<GroupStructure>>();
        //...Set up the repository behavior to satisfy logic

        var uow = new Mock<IUnitOfWork>();
        uow.Setup(_ => _.GetRepository<AgencyGroupStructure>())
            .Returns(repository.Object);

        var sut = new ControlService(uow.Object);
        var expected = true;

        //Act
        var actual = sut.HasExternalImage(1249);

        //Assert
        Assert.AreEqual(actual.Item1, expected);    
    }    
}

参考 Moq Quickstart 更好地理解如何使用mocking框架。