如何模拟MVC方法+构造函数？

Question

From this page http://www.dotnetcurry.com/showarticle.aspx?ID=836 , they do this:

public class CarDealershipController:Controller
{
  private ICarDealershipController:Controller repository;

  public CarDealershipController:Controller(
    ICarDealershipController:Controller repository)
  {
    this.repository = repository;
  }

  public ActionResult List(string carid)
  {
    var cars = repository.GetCarById(carid);
    return View("List", cars);
  }
}

I've modified the code slightly by adding the carid parameter. Since this class requires a value sent into its constructor, how does that work if the initial call is:

localhost/Home/List/carid

How does the constructor get initialized?

Answer 1

Typically you would grab a dependecy resolver like Unity, Ninject or something similar to do this for you. You register a concrete type against any interfaces used and they will construct it and pass it to any constructors that need one.

To do this, they use a controller factory that hooks into their resolver, rather than the default controller factory, which really only likes empty constructors.

Answer 2

此外，我强烈建议James Bender和Jeff McWherter 使用C＃进行专业的测试驱动开发

Answer 3

In the case of the constructor I would reccomend using a DI framework to help out with the constructor injection. In your test you would use a mocking framework to create an instance of the repository.

Seems like you have a typo on the Class name of the repository.