Schedulers.immediate（）不使用命令行gradle测试

Question

I'm trying to test a presenter that use RxJava to retrieve data from an interactor. In the setup method I'm doing something like:

@Before 
public void setup() {
    RxAndroidPlugins.getInstance().registerSchedulersHook(new RxAndroidSchedulersHook() {
        @Override
        public Scheduler getMainThreadScheduler() {
            return Schedulers.immediate();
        }
    });
}

So in my test method I can test the presenter call:

@Test
public void testLoad() {
    presenter.load();
    verify(view).dataLoaded(data);
    verify(interactor).load();
}

If I run the test with Android Studio everything work as expected, the issue is that If I try on command line

gradle test

Then the test fails because: Actually, there were zero interactions with this mock.

So I've tried to put a Thread.sleep(2000) right after the call to the presenter and then it works, so I guess the Schedulers.immediate(); is not working from command line but I have no idea why and how to debug/fix. Do you have any idea?

EDIT: presenter implementation ->

public void load() {
    Observable<List<Data>> obs = interactor.load()
            .observeOn(AndroidSchedulers.mainThread())
            .subscribeOn(Schedulers.io());
    obs.subscribe(new Observer<List<Data>>() {
        @Override
        public void onCompleted() {

        }

        @Override
        public void onError(Throwable e) {

        }

        @Override
        public void onNext(List<Data> data) {
            view.dataLoaded(data);
        }
    });
}

Answer 1

You can mock RxJava Schedulers as well.

RxJavaHooks.reset();
RxJavaHooks.setOnIOScheduler(scheduler -> Schedulers.immediate());

Typically a good thing to call reset on setup & teardown.