public virtual void TestInsert()
 {
     DeleteBase("tinterfaces.ndb");
     var odb = Open("tinterfaces.ndb");
     var owi = new ObjectWithInterfaces("Ol√° chico");
     odb.Store(owi);
     odb.Commit();
     odb.Close();
 }
 public virtual void TestInsertAndSelect()
 {
     DeleteBase("tinterfaces.ndb");
     var odb = Open("tinterfaces.ndb");
     var owi = new ObjectWithInterfaces("Ol√° chico");
     odb.Store(owi);
     odb.Close();
     odb = Open("tinterfaces.ndb");
     var query = odb.Query<ObjectWithInterfaces>();
     var os = query.Execute<ObjectWithInterfaces>();
     AssertEquals(1, os.Count);
     odb.Close();
 }