使用Moq的單元測試工作單元和通用存儲庫模式框架

Question

我正在使用Moq使用工作單元和通用存儲庫的服務進行單元測試。問題是，在服務類中，當我在調試模式下運行測試時，_subsiteRepository始終爲空。

服務類的，我嘲笑

private readonly IRepository<Subsite> _subsiteRepository; 

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

設置和在這個類是正在測試的方法。問題是_subsiteRepository始終爲空。該方法不僅僅是這個，而是相關的部分。

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

最後，這是我運行測試：

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); 

Answer 1

移動創建_platformService安排後一步。因爲您在unitOfWork模擬設置之前調用PlatformService構造函數。

_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);