Question

我是一名学生，对于一个项目，我必须编写使用 C# 进行的测试。在这里，我必须使用我编写的服务。如何在 C# 单元测试中添加正派注入？另外我必须使用 AutoMapper，这是否以同样的方式工作？

这是我试过的：

public class DiveTests
{
    private readonly IDiveService _diveService;
    private readonly IMapper _mapper;

    public DiveTests(IDiveService diveService, IMapper mapper)
    {
        _diveService = diveService;
        _mapper = mapper;
    }

    [Fact]
    public async void AddAsync_InputGoodDive_CreateNewDive()
    {
        Guid id = Guid.Parse("00000000-0000-0000-0000-000000000000");
        DateTime dateTime = DateTime.Parse("2020-12-23T17:04:43.802Z");
        Dive dive = new Dive()
        {
            Id = id,
            Depth = 15,
            DiveDate = dateTime,
            DivePlace = "hello"
        };
        DiveRequestDto diveRequestDto = _mapper.Map<DiveRequestDto>(dive);
        await _diveService.AddAsync(diveRequestDto);
        var result = await _diveService.GetByIdAsync(id);
        Assert.Equal(result.Id, id);
    }
}

这是我尝试过的另一个构造函数：

    public DiveTests()
    {
        if (_mapper == null)
        {
            var mappingConfig = new MapperConfiguration(mc =>
            {
                mc.AddProfile(new AutoMapperProfiles());
            });
            IMapper mapper = mappingConfig.CreateMapper();
            _mapper = mapper;
            _diveService = diveService;
        }
    }

Answer 1

如果您要为 IDiveService/DiveService 添加单元测试；那么无需在单元测试中调用 /use IMapper：AddAsync_InputGoodDive_CreateNewDive()

公共课程 DiveTests { 私有只读 IDiveService _diveService;

public DiveTests()
{
    _diveService = new DIveSevice(); // or can create this instance at unit test level
}

[Fact]
public async void AddAsync_InputGoodDive_CreateNewDive()
{
    // ARRANGE
    Guid id = Guid.Parse("00000000-0000-0000-0000-000000000000");
    DateTime dateTime = DateTime.Parse("2020-12-23T17:04:43.802Z");
    DiveRequestDto diveRequestDto = new DiveRequestDto
    {
        Depth = 15,
        DiveDate = dateTime,
        DivePlace = "hello"
    };

    // ACT
    await _diveService.AddAsync(diveRequestDto);
    var result = await _diveService.GetByIdAsync(id);

    // ASSERT
    Assert.Equal(result.Id, id);
}

}

C# 单元测试依赖注入

1 个答案: