public void CorrectRequestForRemoveUser() { var factory = Substitute.For <IConnection>(); var client = new DatabasesClient(factory); client.RemoveUser("1", "name"); var parameters = Arg.Is <List <Parameter> >(list => (string)list[0].Value == "1" && (string)list[1].Value == "name"); factory.Received().ExecuteRaw("databases/{id}/users/{name}", parameters, null, Method.DELETE); }