2011-01-27 39 views
1

我正在使用Rhino mocks来更改NHibernate DAL的行为,以便当提交事务被代码调用时模拟框架改变了行为,所以事务被回滚。我这样做的原因是为了集成测试,但我不想向数据库添加任何数据。Rhino mocks抛出异常的“回调参数不匹配方法参数委托”的方法

这里是测试我的方法/类:

public class NHibernateDALSave<T> : IBaseDALSave<T> where T : class 
{ 
    protected ISession _session; 
    protected ISessionFactory _sessionFactory; 

    public NHibernateDALSave() 
    { 
     _sessionFactory = new Configuration().Configure().BuildSessionFactory(); 
    } 

    public NHibernateDALSave(ISessionFactory sessionFactory) 
    { 
     _sessionFactory = sessionFactory; 
    } 

    public void OpenSession() 
    { 
     if (_sessionFactory == null) 
     { 
      _sessionFactory = new Configuration().Configure().BuildSessionFactory(); 
     } 

     _session = _sessionFactory.OpenSession(); 
    } 

    public virtual int Save(T objectToSave) 
    { 
     this.OpenSession(); 
     using (_session) 
     { 
      using (ITransaction tx = _session.BeginTransaction()) 
      { 
       try 
       { 
        Int32 NewId = Convert.ToInt32(_session.Save(objectToSave)); 
        _session.Flush(); 
        tx.Commit(); 
        return NewId; 
       } 
       catch (Exception) 
       { 
        tx.Rollback(); 
        throw; 
       } 

      } 
     } 
    } 

} 

这是测试代码:

public void SaveEmployee_Blank_Success() 
    { 
     //setup employee object to save 
     EmployeeDataContext employee = new EmployeeDataContext(); 
     employee.Person = new PersonDataContext(); 
     employee.PayRollNo = "12345"; 
     employee.Person.Surname = "TEST"; 

     //stub classes 
     ISessionFactory SessionFactoryStub = MockRepository.GenerateMock<ISessionFactory>(); 
     ISession SessionStub = MockRepository.GenerateMock<ISession>(); 
     ITransaction TranStub = MockRepository.GenerateMock<ITransaction>(); 

     //Actual classes 
     ISessionFactory sessionFactory = new Configuration().Configure().BuildSessionFactory(); 
     ISession Session = sessionFactory.OpenSession(); 
     ITransaction Tran = Session.BeginTransaction(); 

     try 
     { 
      //Configure to prevent commits to the database 
      SessionStub.Stub(ss => ss.BeginTransaction()).Return(TranStub); 
      SessionStub.Stub(ss => ss.Save(Arg<EmployeeDataContext>.Is.Anything)).Do((Action)delegate { Session.Save(employee); }); 
      SessionStub.Stub(ss => ss.Flush()).Do((Action)delegate { Session.Flush(); }); 

      TranStub.Stub(ts => ts.Commit()).Do((Action)delegate { Tran.Rollback(); }); 
      TranStub.Stub(ts => ts.Rollback()).Do((Action)delegate { Tran.Rollback(); }); 

      SessionFactoryStub.Stub(sf => sf.OpenSession()).Return(SessionStub); 

      NHibernateDALSave<EmployeeDataContext> target = new NHibernateDALSave<EmployeeDataContext>(SessionFactoryStub); 
      target.Save(employee); 
     } 
     catch 
     { 
      Tran.Rollback(); 
      throw; 
     } 
    } 

我正的错误是“回调参数不匹配的方法参数委托“在try,catch块开始后出现在第二行。

任何人都可以帮助我解决这个错误信息的含义,我能做些什么来解决这个问题?或者有没有人对如何与Nhibernate进行集成测试提出建议?

回答

5

马特的答案是正确的,但也可以考虑使用WhenCalled,而不是Do。当你实际上不需要使用传入的实际参数时,使用起来会更容易。

5

我没有使用RhinoMocks,但我已经使用其他模拟框架。我认为问题在于你的Save方法只有一个参数,但是你提供给回调Do方法的委托并不带参数。

该行也许应该是这样的:

SessionStub.Stub(ss => ss.Save(Arg<EmployeeDataContext>.Is.Anything)).Do(arg => Session.Save(employee))