Examples with Observer io.reactivex.rxjava3.core.Observer used on opensource projects

Example 46 with Observer

use of io.reactivex.rxjava3.core.Observer in project RxJava by ReactiveX.

the class ObservableOnErrorResumeNextTest method functionThrowsError.

/**
 * Test that when a function throws an exception this is propagated through onError.
 */
@Test
public void functionThrowsError() {
    Subscription s = mock(Subscription.class);
    TestObservable w = new TestObservable(s, "one");
    Function<Throwable, Observable<String>> resume = new Function<Throwable, Observable<String>>() {

        @Override
        public Observable<String> apply(Throwable t1) {
            throw new RuntimeException("exception from function");
        }
    };
    Observable<String> o = Observable.unsafeCreate(w).onErrorResumeNext(resume);
    Observer<String> observer = TestHelper.mockObserver();
    o.subscribe(observer);
    try {
        w.t.join();
    } catch (InterruptedException e) {
        fail(e.getMessage());
    }
    // we should get the "one" value before the error
    verify(observer, times(1)).onNext("one");
    // we should have received an onError call on the Observer since the resume function threw an exception
    verify(observer, times(1)).onError(any(Throwable.class));
    verify(observer, times(0)).onComplete();
}

Example 47 with Observer

use of io.reactivex.rxjava3.core.Observer in project RxJava by ReactiveX.

the class ObservableOnErrorResumeNextTest method resumeNextWithAsyncExecution.

@Test
public void resumeNextWithAsyncExecution() {
    final AtomicReference<Throwable> receivedException = new AtomicReference<>();
    Subscription s = mock(Subscription.class);
    TestObservable w = new TestObservable(s, "one");
    Function<Throwable, Observable<String>> resume = new Function<Throwable, Observable<String>>() {

        @Override
        public Observable<String> apply(Throwable t1) {
            receivedException.set(t1);
            return Observable.just("twoResume", "threeResume");
        }
    };
    Observable<String> o = Observable.unsafeCreate(w).onErrorResumeNext(resume);
    Observer<String> observer = TestHelper.mockObserver();
    o.subscribe(observer);
    try {
        w.t.join();
    } catch (InterruptedException e) {
        fail(e.getMessage());
    }
    verify(observer, Mockito.never()).onError(any(Throwable.class));
    verify(observer, times(1)).onComplete();
    verify(observer, times(1)).onNext("one");
    verify(observer, Mockito.never()).onNext("two");
    verify(observer, Mockito.never()).onNext("three");
    verify(observer, times(1)).onNext("twoResume");
    verify(observer, times(1)).onNext("threeResume");
    assertNotNull(receivedException.get());
}

Example 48 with Observer

use of io.reactivex.rxjava3.core.Observer in project RxJava by ReactiveX.

the class ObservableSkipLastTimedTest method skipLastTimedErrorBeforeTime.

@Test
public void skipLastTimedErrorBeforeTime() {
    TestScheduler scheduler = new TestScheduler();
    PublishSubject<Integer> source = PublishSubject.create();
    Observable<Integer> result = source.skipLast(1, TimeUnit.SECONDS, scheduler);
    Observer<Object> o = TestHelper.mockObserver();
    result.subscribe(o);
    source.onNext(1);
    source.onNext(2);
    source.onNext(3);
    source.onError(new TestException());
    scheduler.advanceTimeBy(1050, TimeUnit.MILLISECONDS);
    verify(o).onError(any(TestException.class));
    verify(o, never()).onComplete();
    verify(o, never()).onNext(any());
}

Example 49 with Observer

use of io.reactivex.rxjava3.core.Observer in project RxJava by ReactiveX.

the class ObservableSkipTimedTest method skipTimedFinishBeforeTime.

@Test
public void skipTimedFinishBeforeTime() {
    TestScheduler scheduler = new TestScheduler();
    PublishSubject<Integer> source = PublishSubject.create();
    Observable<Integer> result = source.skip(1, TimeUnit.SECONDS, scheduler);
    Observer<Object> o = TestHelper.mockObserver();
    result.subscribe(o);
    source.onNext(1);
    source.onNext(2);
    source.onNext(3);
    source.onComplete();
    scheduler.advanceTimeBy(1, TimeUnit.SECONDS);
    InOrder inOrder = inOrder(o);
    inOrder.verify(o).onComplete();
    inOrder.verifyNoMoreInteractions();
    verify(o, never()).onNext(any());
    verify(o, never()).onError(any(Throwable.class));
}

Example 50 with Observer

use of io.reactivex.rxjava3.core.Observer in project RxJava by ReactiveX.

the class ObservableSkipTimedTest method skipTimed.

@Test
public void skipTimed() {
    TestScheduler scheduler = new TestScheduler();
    PublishSubject<Integer> source = PublishSubject.create();
    Observable<Integer> result = source.skip(1, TimeUnit.SECONDS, scheduler);
    Observer<Object> o = TestHelper.mockObserver();
    result.subscribe(o);
    source.onNext(1);
    source.onNext(2);
    source.onNext(3);
    scheduler.advanceTimeBy(1, TimeUnit.SECONDS);
    source.onNext(4);
    source.onNext(5);
    source.onNext(6);
    source.onComplete();
    InOrder inOrder = inOrder(o);
    inOrder.verify(o, never()).onNext(1);
    inOrder.verify(o, never()).onNext(2);
    inOrder.verify(o, never()).onNext(3);
    inOrder.verify(o).onNext(4);
    inOrder.verify(o).onNext(5);
    inOrder.verify(o).onNext(6);
    inOrder.verify(o).onComplete();
    inOrder.verifyNoMoreInteractions();
    verify(o, never()).onError(any(Throwable.class));
}