使用Moq进行单元测试的工作单元和通用存储库模式框架

本文介绍了使用Moq进行单元测试的工作单元和通用存储库模式框架的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我正在对使用Moq的工作单元和通用存储库的服务进行单元测试.问题是在服务类中，当我在调试模式下运行测试时，_subsiteRepository始终为空.

I am unit testing a Service which is using the a Unit of Work and Generic Repository using Moq. The problem is that in the service class the _subsiteRepository is always null when I run the test in debug mode.

我正在嘲笑的服务类的设置

The setup of the Service Class I am mocking

private readonly IRepository<Subsite> _subsiteRepository; public PlatformService(IUnitOfWork<PlatformContext> unitOfWork) { _subsiteRepository = unitOfWork.GetRepository<Subsite>(); }

以及正在测试的此类中的方法.问题在于_subsiteRepository始终为null.该方法的作用还不止于此，但这是相关的部分.

and the method in this class that am testing. The problem is that _subsiteRepository is always null. The method does more than this but this is the relevant part.

public async Task<IEnumerable<Subsite>> GetSubsites() { // Get Subsites var subsites = await _subsiteRepository .GetAll() .ToListAsync(); }

最后这是我正在运行的测试:

Finally this is the test I am running:

private readonly Mock<IRepository<Subsite>> _subsiteRepository; private readonly Mock<IUnitOfWork<PlatformContext>> _unitOfWork; private readonly PlatformService _platformService; _subsiteRepository = new Mock<IRepository<Subsite>>(); _unitOfWork = new Mock<IUnitOfWork<PlatformContext>>(); _platformService = new PlatformService(_unitOfWork.Object); // Arrange var fakeSubsites = new List<Subsite> { new Subsite {IDSubsite = new Guid(), Title = "Subsite One"} }.AsQueryable(); _unitOfWork.Setup(x => x.GetRepository<Subsite>()).Returns(_subsiteRepository.Object); _unitOfWork.Setup(x => x.GetRepository<Subsite>().GetAll()).Returns(fakeSubsites); // Act var subsites = await _platformService.GetSubsites(null, null); // Assert Assert.NotNull(subsites);

推荐答案

在排列"步骤之后移动_platformService的创建.因为您在设置unitOfWork模拟之前调用了PlatformService构造函数.

Move creation of the _platformService after Arrange step. Because you call the PlatformService constructor before unitOfWork mock is setup.

_subsiteRepository = new Mock<IRepository<Subsite>>(); _unitOfWork = new Mock<IUnitOfWork<PlatformContext>>(); // Arrange var fakeSubsites = new List<Subsite> { new Subsite {IDSubsite = new Guid(), Title = "Subsite One"} }.AsQueryable(); _unitOfWork.Setup(x => x.GetRepository<Subsite>()).Returns(_subsiteRepository.Object); _unitOfWork.Setup(x => x.GetRepository<Subsite>().GetAll()).Returns(fakeSubsites); // Act _platformService = new PlatformService(_unitOfWork.Object); var subsites = await _platformService.GetSubsites(null, null); // Assert Assert.NotNull(subsites);