public SagaPersisterTests()
 {
     var connstring = ConfigurationManager.AppSettings["testpgsqlconnstring"];
     _connectionFactoryHolder = new ConnectionFactoryHolder
     {
         ConnectionFactory = () => new NpgsqlConnection(connstring)
     };
     using (var conn = _connectionFactoryHolder.ConnectionFactory())
     {
         conn.Execute("DROP TABLE IF EXISTS sagas");
     }
 }