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很抱歉在这里发布这个问题，但我突然遇到了问题，因为我需要编写单元测试代码以在我不擅长的地方采取行动。

我对asp.net mvc有点熟悉。在我从不为动作编写单元测试代码之前，我手动测试动作。现在我想知道为我的操作编写单元测试代码的艺术。所以我阅读了几篇关于单元测试的文章，但注意到所有文章都分享了关于在 mvc 控制器中为动作方法编写单元测试代码的非常基本的想法，但我无法为我的动作编写单元测试代码。所以我在这里粘贴我的一个示例控制器及其操作。所以请任何人分享如何为下面的操作方法编写单元测试代码的知识。如果可能的话，与代码示例或好的提示进行讨论，以便在 VS2013 和 MVC 版本 5 中编写单元测试代码。

这是我的代码

public class StudentController : Controller
    {
        private StudentRepository _Studentdata;
        private StateRepository _Statedata;
        private CityRepository _Citydata;

        public StudentController()
        {

            _Studentdata = new StudentRepository(System.Configuration.ConfigurationManager.ConnectionStrings["StudentDBContext"].ConnectionString);
            _Statedata = new StateRepository(System.Configuration.ConfigurationManager.ConnectionStrings["StudentDBContext"].ConnectionString);
            _Citydata = new CityRepository(System.Configuration.ConfigurationManager.ConnectionStrings["StudentDBContext"].ConnectionString);

            //_Studentdata = new StudentRepository(System.Configuration.ConfigurationManager.ConnectionStrings["StudentSQLDBContext"].ConnectionString);
            //_Statedata = new StateRepository(System.Configuration.ConfigurationManager.ConnectionStrings["StudentSQLDBContext"].ConnectionString);
            //_Citydata = new CityRepository(System.Configuration.ConfigurationManager.ConnectionStrings["StudentSQLDBContext"].ConnectionString);

        }

        // GET: Stuent
        public ActionResult List(StudentListViewModel oSVm)
        {
            if (Request.IsAjaxRequest())
                System.Threading.Thread.Sleep(1000); // just simulate delay of one second

            StudentListViewModel SVm = new StudentListViewModel();
            SVm.SetUpParams(oSVm);
            SVm.Students = _Studentdata.GetStudents(oSVm.page, oSVm.PageSize, oSVm.sort, oSVm.sortdir).ToList();
            SVm.States = _Statedata.GetAll().ToList();
            SVm.Cities = _Citydata.GetAll().ToList();
            SVm.RowCount = _Studentdata.DataCounter;
            return View("ListStudents",SVm);
        }

        [HttpPost]
        public ActionResult UpdateStudents(StudentListViewModel oSVm, string Action)
        {
            if (Request.IsAjaxRequest())
                System.Threading.Thread.Sleep(1000); // just simulate delay of one second

            StudentListViewModel SVm = new StudentListViewModel();
            SVm.SetUpParams(oSVm);
            if (Action == "UPDATE")
            {
                SVm.Students = _Studentdata.SaveXML(new List<Student>(oSVm.Students).ToXml("Students"),
                    oSVm.page, oSVm.PageSize, oSVm.sort, oSVm.sortdir).ToList();
            }
            else if (Action == "DELETE")
            {
                SVm.Students = _Studentdata.Delete(oSVm.Students[0].ID,
                    oSVm.page, oSVm.PageSize, oSVm.sort, oSVm.sortdir).ToList();

            }

            SVm.States = _Statedata.GetAll().ToList();
            SVm.Cities = _Citydata.GetAll().ToList();
            SVm.RowCount = _Studentdata.DataCounter;
            return PartialView("_StudentGrid", SVm);
        }

        [HttpPost]
        public ActionResult RefreshStudents(StudentListViewModel oSVm)
        {
            if (Request.IsAjaxRequest())
                System.Threading.Thread.Sleep(1000); // just simulate delay of one second

            StudentListViewModel SVm = new StudentListViewModel();
            SVm.SetUpParams(oSVm);
            SVm.Students = _Studentdata.GetStudents(oSVm.page, oSVm.PageSize, oSVm.sort, oSVm.sortdir).ToList();
            SVm.States = _Statedata.GetAll().ToList();
            SVm.Cities = _Citydata.GetAll().ToList();
            SVm.RowCount = _Studentdata.DataCounter;
            return PartialView("_StudentGrid", SVm);
        }

        [HttpGet]
        public JsonResult GetCityName(int StateID)
        {
            if (Request.IsAjaxRequest())
                System.Threading.Thread.Sleep(1000); // just simulate delay of one second

            return Json(new {CityList =_Citydata.GetCityByStateId(StateID)} , JsonRequestBehavior.AllowGet);
        }

    }

谢谢

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