Unit testing android application with retrofit and rxjava

Question

I have developed an android app that is using retrofit with rxJava, and now I\'m trying to set up the unit tests with Mockito but I don\'t know how to mock the api responses

Answer 1

I had the same problem with

.observeOn(AndroidSchedulers.mainThread())

i fixed it with the following codes

public class RxJavaUtils {
    public static Supplier getSubscriberOn = () -> Schedulers.io();
    public static Supplier getObserveOn = () -> AndroidSchedulers.mainThread();
}

and use it like this

deviceService.findDeviceByCode(text)
            .subscribeOn(RxJavaUtils.getSubscriberOn.get())
            .observeOn(RxJavaUtils.getObserveOn.get())

and in my test

@Before
public void init(){
    getSubscriberOn = () -> Schedulers.from(command -> command.run()); //Runs in curren thread
    getObserveOn = () -> Schedulers.from(command -> command.run()); //runs also in current thread
}

works also for io.reactivex