小编Mar*_*ans的帖子

我在单元测试中使用事务来回滚更改.单元测试使用dbcontext,我正在测试的服务使用自己的.它们都包装在一个事务中,一个dbcontext在另一个事务的块中.问题是,当内部dbcontext保存他的更改时,外部dbcontext不可见(我不认为这是因为另一个dbcontext可能已经加载了对象).这是一个例子:

[TestMethod]
public void EditDepartmentTest()
{
    using (TransactionScope transaction = new TransactionScope())
    {
        using (MyDbContext db = new MyDbContext())
        {
            //Arrange
            int departmentId = (from d in db.Departments
                                   where d.Name == "Dep1"
                                   select d.Id).Single();
            string newName = "newName",
                   newCode = "newCode";

            //Act
            IDepartmentService service = new DepartmentService();
            service.EditDepartment(departmentId, newName, newCode);

            //Assert
            Department department = db.Departments.Find(departmentId);
            Assert.AreEqual(newName, department.Name,"Unexpected department name!");
            //Exception is thrown because department.Name is "Dep1" instead of "newName"
            Assert.AreEqual(newCode, department.Code, "Unexpected department code!");
        }
    }
}

服务:

public class …