private void Initialize()
{
var dbFile = "test.sqlite";
EnsureDbFileNotExists(dbFile);

            if (_configuration == null)
            {
                //_configuration = new Configuration().Configure(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "hibernate.config.xml"));
                //_configuration.AddAssembly(assemblyContainingMapping);

                _configuration = new Configuration()
                    .SetProperty(Environment.Dialect, typeof(SQLiteDialect).AssemblyQualifiedName)
                    .SetProperty(Environment.ConnectionDriver, typeof(SQLite20Driver).AssemblyQualifiedName)
                    .SetProperty(Environment.ConnectionProvider, typeof(DriverConnectionProvider).AssemblyQualifiedName)
                    .SetProperty(Environment.ConnectionStringName, string.Format("data source={0}", dbFile))
                    .SetProperty(Environment.ShowSql, "true")
                    .SetProperty(Environment.ProxyFactoryFactoryClass, typeof(ProxyFactoryFactory).AssemblyQualifiedName)
                    .AddAssembly(assemblyContainingMapping);

                _sessionFactory = _configuration.BuildSessionFactory();
            }

            new SchemaExport(_configuration).Execute(true, true, false, GetSession().Connection, Console.Out);
}