Testing the observers

Hi, I would like to test observers, based on the different results my UseCase may return. For example https://github.com/android10/Android-CleanArchitecture/blob/master/presentation/src/main/java/com/fernandocejas/android10/sample/presentation/presenter/UserListPresenter.java

In this case, onComplete(), onError() and onNext() are not tested. I'd like to be able to write a test named "testUserListObserverOnError" and make sure hideViewLoading(), showErrorMessage(), showViewRetry() are called.

I haven't managed to do that since the Observer class is a private inner class. I can not mock it. How would you go about testing this?

Inizia leggendo presentation/src/main/java/com/fernandocejas/android10/sample/presentation/presenter/UserListPresenter.java e l’implementazione privata di Observer, quindi esamina come vengono invocati i suoi percorsi onComplete(), onError() e onNext(). Il lavoro è completo quando è possibile testare gli esiti dell’observer, inclusi hideViewLoading(), showErrorMessage() e showViewRetry() per il percorso di errore.