我想用EntityFramework.InMemory测试DbContext,但是当我尝试包含所有对象属性时,它们为null,我真的不知道为什么。
我有一个UnitOfWorkLocator,负责创建并返回相同的UnitOfWork。
public static class UnitOfWorkLocator
{
public static Func<UnitOfWork> UnitOfWorkFactory;
public static UnitOfWork GetUnitOfWork()
{
return UnitOfWorkFactory();
}
}
因此,在每个测试类中,我都这样做:
contextOptions = new DbContextOptionsBuilder<SchoolLibraryContext>()
.UseInMemoryDatabase(Guid.NewGuid().ToString())
.Options;
UnitOfWorkLocator.UnitOfWorkFactory = () => new UnitOfWork(contextOptions);
LendBook:
public class LendedBook: EntityBase
{
public virtual Book Book
{
get;
set;
}
public virtual Student Student
{
get;
set;
}
public virtual DateInterval DateInterval
{
get;
set;
}
public bool Returned
{
get;
set;
}
public bool Canceled
{
get;
set;
}
}
存储库中的方法:
public LendedBook GetLendedBookById(Guid lendedBookId)
{
return schoolLibraryContext.LendedBooks.Include(book => book.Book)
.Include(student => student.Student)
.Include(dateInterval => dateInterval.DateInterval)
.FirstOrDefault(lendedBook => lendedBook.Id == lendedBookId) ??
throw new EntityNotFoundException(typeof(LendedBook).Name);
}
EntityBase类负责使用以下方法将实体保存在数据库中:
public void Save()
{
using (var unitOfWork = UnitOfWorkLocator.GetUnitOfWork())
{
unitOfWork.AddOrUpdate(this);
unitOfWork.Commit();
}
}
并且EntityBase也具有Id属性:
public Guid Id { get; set; }
在LendedBook上执行的初始化和Save方法:
var student = new Student("Sebastian", "Odegrad")
{
Email = "email@domain.com"
};
var dateInterval = new DateInterval
{
StartDate = new DateTime(2018, 08, 01),
EndDate = new DateTime(2018, 08, 30)
};
var lendedBook = new LendedBook
{
Student = student,
DateInterval = dateInterval
};
libranian = new Libranian("Wilskinson", "Martin");
student.Save();
dateInterval.Save();
lendedBook.Save();
那么,如何使用EFCore.InMemory正确包含所有对象属性?
答案 0 :(得分:0)
我将UnitOfWork的构造函数中的参数更改为接受DbContext而不是DbContextOptions。我还从EntityBase中删除了Save()方法,并在LendedBookRepository中创建了AddLendedBook。我认为这种方法更加干净和可测试。