5
我正在做一個簡單的單元測試,在創建課程時,標題字段不能爲空。我必須使用具有UnitOfWork的依賴注入的服務類進行測試。當我調試我的測試時,我得到一個異常錯誤Can not instantiate proxy of class: ContosoUniversity.Models.CourseRepository
我查看了這個錯誤,但是我無法理解如何解決這個問題和Assert語句?無法實例化類錯誤代理
CourseRepository
public class CourseRepository : GenericRepository<Course>
{
public CourseRepository(SchoolContext context)
: base(context)
{
}
的UnitOfWork
public class UnitOfWork : IDisposable, IUnitOfWork
{
private SchoolContext context = new SchoolContext();
private GenericRepository<Department> departmentRepository;
private CourseRepository courseRepository;
public CourseRepository CourseRepository
{
get
{
if (this.courseRepository == null)
{
this.courseRepository = new CourseRepository(context);
}
return courseRepository;
}
}
public virtual CourseRepository GetCourseRepository()
{
if (this.courseRepository == null)
{
this.courseRepository = new CourseRepository(context);
}
return courseRepository;
}
CourseService
public class CourseService : ICourseService
{
private IUnitOfWork unitOfWork;
public CourseService (IUnitOfWork unitOfWork)
{
this.unitOfWork = unitOfWork;
}
public void Create(Course course)
{
unitOfWork.GetCourseRepository().Insert(course);
unitOfWork.Save();
}
public Course GetCourseByID(int id)
{
return unitOfWork.GetCourseRepository().GetByID(id);
}
TestMethod的
[TestMethod]
public void TestMethod1()
{
var course = new Course
{
CourseID = 2210,
Title = string.Empty,
Credits = 3,
DepartmentID = 1
};
Mock<CourseRepository> mockRepo = new Mock<CourseRepository>();
mockRepo.Setup(m => m.GetByID(course.CourseID)).Returns(course);
var mockUnit = new Mock<IUnitOfWork>();
mockUnit.Setup(x => x.GetCourseRepository()).Returns(mockRepo.Object);
var myService = new CourseService(mockUnit.Object);
myService.Create(course);
//var error = _modelState["Title"].Errors[0];
//Assert.AreEqual("The Title field is required.", error.ErrorMessage);
//mockRepo.Setup(x => x.Insert(course));
}
這應該被標記爲答案 –