public void CorrectRequestForAddDatabase() { var factory = Substitute.For <IConnection>(); var client = new DatabasesClient(factory); var database = new Models.Requests.Database(); client.AddDatabase("1", database); var parameters = Arg.Is <List <Parameter> >(list => (string)list[0].Value == "1"); factory.Received().ExecuteRequest <Database>("databases/{id}/dbs", parameters, database, "db", Method.POST); }