public async Task TestDeleteObject()
        {
            IConnector connector = new Connector(consumerKey, consumerSecret, userName,
                                                 passwordAndToken, false, log, jsonHttpClient, xmlHttpClient);
            ISalesforceService salesforceService = new SalesforceService(connector, log);
            dynamic            lead = new ExpandoObject();

            using (salesforceService)
            {
                lead = await salesforceService.GetObjectByExternalIdentifier("Lead", "Email", "*****@*****.**");

                bool isDeleted = await salesforceService.DeleteObject(lead.Id, "Lead");

                Assert.IsTrue(isDeleted);
            }
        }