Question

我是Asp.net 5的新手，对单元测试有疑问。

我要测试的课程如下

 while (values.hasNext()) {
    IntWritable val = values.next();
    ...
}

TargetRepository是

public class TargetController : Controller
{
    private readonly ITargetRepository _targetRepository;
    public TargetController(ITargetRepository targetRepository)
    {
        this._targetRepository = targetRepository;
    }
    // GET: /<controller>/
    public IActionResult Index()
    {
        return this.View("Index");
    }
}

，TargetContext是

public class TargetRepository : ITargetRepository
{
    private readonly TargetContext _context;

    public TargetRepository(TargetContext context)
    {
        this._context = context;
    }
}

测试代码是

public class TargetContext : DbContext
{

    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
        string connectionString = Startup.Configuration["Data:TargetContextConnection"];
        optionsBuilder.UseSqlServer(connectionString);
        base.OnConfiguring(optionsBuilder);
    }
}

问题如下。在TargetContext中，我使用了

public class TargetControllerTests
{
    private readonly TargetController _controller;

    public TargetControllerTests()
    {
        this._controller = new TargetController(new TargetRepository(new TargetContext()));
    }

    [Fact()]
    public void IndexActionResultTest()
    {
        ViewResult vr = this._controller.Index() as ViewResult;
        Assert.NotNull(vr);
        Assert.Equal("Index", vr.ViewName);
    }
}

获取数据库连接字符串，该字符串在Startup.cs文件中定义。因为我只是在TargetController中测试Index函数，所以我没有运行Startup.cs。结果，我获得了Startup.Configuration的NULLException。我想知道如何解决这个问题并运行我的单元测试。

谢谢。

Answer 1

使用Moq，您的测试应如下所示：

public class TargetControllerTests
{

    private readonly Mock<ITargetRepository> _targetRepository;
    private readonly TargetController _controller;

    public TargetControllerTests()
    {
        _targetRepository = new Mock<ITargetRepository>();
        this._controller = new TargetController(_targetRepository.Object);
    }

    [Fact()]
    public void IndexActionResultTest()
    {
        ViewResult vr = this._controller.Index() as ViewResult;
        Assert.NotNull(vr);
        Assert.Equal("Index", vr.ViewName);
    }
}

在不运行Startup.cs的情况下对Asp.Net 5 MVC进行单元测试

1 个答案: