单元测试流畅的nhibernate存储库与内存sql lite - 没有这样的表错误

Question

我正在尝试使用Fluent NHibernate为存储库模式编写单元测试.我选择使用内存中的sqlite数据库以避免sql server访问(可以进行集成测试).

这是我使用的类:

public enum ExpenseCategory
{
    Eat,
    Clothes,
    Car,
    Leisure,
    Rent,
    House,
    Lecture,
    Trip,
    Restaurent
}

public class Expense
{
    public virtual int Id { get; set; }
    public virtual ExpenseCategory Category { get; set; }
    public virtual double Amount { get; set; }
    public virtual bool IsNecessary { get; set; }
    public virtual bool IsPeriodic { get; set; }
    public virtual string Comment { get; set; }
}

    public ExpenseMapping()
    {
        Table("Expense");
        Id(x => x.Id).Column("idexpense");
        Map(x => x.Category).Column("category");
        Map(x => x.Amount).Column("amount");
        Map(x => x.IsNecessary).Column("isnecessary");
        Map(x => x.IsPeriodic).Column("isperiodic");
        Map(x => x.Comment).Column("comment");
    }
    interface IRepository<T>
{
    T GetById(int id);
    void SaveOrUpdate(T entity);
    void Delete(T entity);
    List<T> GetAll();
}

public interface IDatabase
{
    Configuration Config { get; set; }
    ISessionFactory Session { get; set; }
}

public class NhibernateRepository<T> : IRepository<T>
{
    private readonly Configuration _configuration;
    private readonly ISessionFactory _session;

    public NhibernateRepository(IDatabase database)
    {
        _configuration = database.Config;
        _session = database.Session;

    }

    public T GetById(int id)
    {
        T retrievedObject;
        using (var session = _session.OpenSession())
        {
            using (var transaction = session.BeginTransaction())
            {
                retrievedObject = session.Get<T>(id);
                transaction.Commit();
            }
        }
        return retrievedObject;
    }

    public void SaveOrUpdate(T entity)
    {
        using (var session = _session.OpenSession())
        {
            using (var transaction = session.BeginTransaction())
            {
                session.SaveOrUpdate(entity);
                transaction.Commit();
            }
        }
    }

    public void Delete(T entity)
    {
        using (var session = _session.OpenSession())
        {
            using (var transaction = session.BeginTransaction())
            {
                session.Delete(entity);
                transaction.Commit();
            }
        }
    }

    public List<T> GetAll()
    {
        IList<T> allObjects;
        using (var session = _session.OpenSession())
        {
            using (var transaction = session.BeginTransaction())
            {
                allObjects = session.CreateCriteria(typeof (T)).List<T>();
                transaction.Commit();
            }
        }

        return (List<T>)allObjects;
    }
}


public class DatabaseSqlLite : IDatabase, IDisposable
{
    public Configuration Config { get; set; }
    public ISessionFactory Session { get; set; }

    public DatabaseSqlLite()
    {
        Session = Fluently.Configure()
            .Database(SQLiteConfiguration.Standard.InMemory().ShowSql())
            .Mappings(m => m.FluentMappings
                            .Add(typeof(ExpenseMapping))
                      )
            .ExposeConfiguration(x => Config = x)
            .BuildSessionFactory();

        SchemaExport export = new SchemaExport(Config);
        export.Execute(true, true, false, Session.OpenSession().Connection, null);

    }

    public void Dispose()
    {
        //S.Dispose();
    }
}

public class DatabaseSqlServer : IDatabase
{
    public Configuration Config { get; set; }
    public ISessionFactory Session { get; set; }

    public DatabaseSqlServer()
    {
       Config = Fluently.Configure()
       .Database(MsSqlConfiguration.MsSql2008
                    .ConnectionString(m => m.Server(@".\SqlExpress")
                    .Database("databasename")
                    .TrustedConnection()))
                .Mappings(m => m.FluentMappings.AddFromAssembly(Assembly.GetExecutingAssembly()))
                .BuildConfiguration();

       Session = Config.BuildSessionFactory();
    }
}

从控制台应用程序使用DatabaseSqlServer类可以得到正确的结果.尝试使用DatabaseSqlLite类进行单元测试会给出错误:

public class RespositoryTest
{
    [Fact]
    public void InsertAndLoadExpense()
    {
        var database = new DatabaseSqlLite();

        var repository = new NhibernateRepository<Expense>(database);

        var expense = new Expense()
            {
                Amount = 3,
                IsNecessary = true,
                IsPeriodic = true,
                Category = ExpenseCategory.Car
            };
        repository.SaveOrUpdate(expense);
        Assert.Equal(1, repository.GetAll().Count);
    }
}

错误:

PRAGMA foreign_keys = OFF

drop table if exists Expense

PRAGMA foreign_keys = ON

create table Expense (
    idexpense  integer primary key autoincrement,
   category TEXT,
   amount DOUBLE,
   isnecessary BOOL,
   isperiodic BOOL,
   comment TEXT
)

NHibernate:INSERT INTO费用(类别,金额,必要,非周期性,评论)VALUES(@ p0,@ p1,@ p2,@ p3,@ p4); select last_insert_rowid(); @ p0 ='Car'[Type:String(0)],@ p1 = 3 [Type:Double(0)],@ p2 = True [Type:Boolean(0)],@ p3 = True [Type:Boolean(0)],@ p4 = NULL [Type:String(0)]

NHibernate.Exceptions.GenericADOException无法插入:[MoneyManagerCore.Expense] [SQL:INSERT INTO Expense(类别,金额,必要,isperiodic,comment)VALUES(？,？,？,？,？); select last_insert_rowid()]àNHibernate.Id.Insert.AbstractReturningDelegate.PerformInsert(SqlCommandInfo insertSQL,ISessionImplementor session,IBinder binder)àNHibernate.Persister.Entity.AbstractEntityPersister.Insert(Object [] fields,Boolean [] notNull,SqlCommandInfo sql,Object obj,ISessionImplementor session)àNHibernate.Persister.Entity.AbstractEntityPersister.Insert(Object [] fields,Object obj,ISessionImplementor session)àNHibernate.Action.EntityIdentityInsertAction.Execute()àNHibernate.Engine.ActionQueue.Execute(IExecutable executable)à NHibernate.Event.Default.AbstractSaveEventListener.PerformSaveOrReplicate(Object entity,EntityKey key,IEntityPersister persister,Boolean useIdentityColumn,Object anything,IEventSource source,Boolean requiresImmediateIdAccess)àNHibernate.Event.Default.AbstractSaveEventListener.PerformSave(Object entity,Object id,IEntityPersister persister ,Boolean useIdentityColumn,Object any,IEventSource source,Boolean require sImmediateIdAccess)àNHibernate.Event.Default.AbstractSaveEventListener.SaveWithGeneratedId(Object entity,String entityName,Object anything,IEventSource source,Boolean requiresImmediateIdAccess)àNHibernate.Event.Default.DefaultSaveOrUpdateEventListener.SaveWithGeneratedOrRequestedId(SaveOrUpdateEvent event)àNHibernate.Event.Default.DefaultSaveOrUpdateEventListener .EntityIsTransient(SaveOrUpdateEvent事件)àNHibernate.Event.Default.DefaultSaveOrUpdateEventListener.PerformSaveOrUpdate(SaveOrUpdateEvent事件)àNHibernate.Event.Default.DefaultSaveOrUpdateEventListener.OnSaveOrUpdate(SaveOrUpdateEvent事件)àNHibernate.Impl.SessionImpl.FireSaveOrUpdate(SaveOrUpdateEvent事件)àNHibernate.Impl .SessionImpl.SaveOrUpdate(Object obj)àMoneyManagerRepository.NhibernateRepository`1.SaveOrUpdate(T entity)dans NhibernateRepository.cs:line56àUnitTests.RespositoryTest.InsertAndLoadExpense()dans RespositoryTest.cs:line 28 System.Data.SQLite.SQLiteException SQL逻辑呃 ror或缺少数据库没有这样的表:费用

任何人都可以帮我解决这个问题吗？

Answer 1

会发生什么是打开连接,创建表并丢弃连接,然后打开另一个指向空数据库的连接.

使用sqlite inmemory连接必须始终相同,因为内存数据库与连接一起生存和死亡.

我会:

1. 设置public ISessionFactory Session { get; set; }私有并将其重命名为sessionfactory,因为会话具有误导性
2. 有一个方法,public ISession OpenSession()并在SqlLiteDatabase实现它return _sessionfactory.OpenSession(_connection);连接是使用相同的连接SchemaExport().Execute