public void TestDeleteObject()
 {
     clearTest();
     _index.AddObject(JObject.Parse(@"{""firstname"":""Jimmie"", ""lastname"":""Barninger"", ""objectID"":""àlgol?à""}"));
     var task = _index.DeleteObject("àlgol?à");
     _index.WaitTask(task["taskID"].ToString());
     Query query = new Query();
     query.SetQueryString("");
     var res = _index.Search(query);
     Assert.AreEqual(0, res["nbHits"].ToObject<int>());
 }