@Test
public void testErrorInParentObservableDelayed() throws Exception {
for (int i = 0; i < 50; i++) {
final TestASynchronous1sDelayedObservable o1 = new TestASynchronous1sDelayedObservable();
final TestASynchronous1sDelayedObservable o2 = new TestASynchronous1sDelayedObservable();
Observable<Observable<String>> parentObservable =
Observable.create(
new Publisher<Observable<String>>() {
@Override
public void subscribe(Subscriber<? super Observable<String>> op) {
op.onSubscribe(EmptySubscription.INSTANCE);
op.onNext(Observable.create(o1));
op.onNext(Observable.create(o2));
op.onError(new NullPointerException("throwing exception in parent"));
}
});
Subscriber<String> stringObserver = TestHelper.mockSubscriber();
TestSubscriber<String> ts = new TestSubscriber<>(stringObserver);
Observable<String> m = Observable.mergeDelayError(parentObservable);
m.subscribe(ts);
System.out.println("testErrorInParentObservableDelayed | " + i);
ts.awaitTerminalEvent(2000, TimeUnit.MILLISECONDS);
ts.assertTerminated();
verify(stringObserver, times(2)).onNext("hello");
verify(stringObserver, times(1)).onError(any(NullPointerException.class));
verify(stringObserver, never()).onComplete();
}
}
@Test
public void testDelayErrorMaxConcurrent() {
final List<Long> requests = new ArrayList<>();
Observable<Integer> source =
Observable.mergeDelayError(
Observable.just(
Observable.just(1).asObservable(),
Observable.<Integer>error(new TestException()))
.doOnRequest(
new LongConsumer() {
@Override
public void accept(long t1) {
requests.add(t1);
}
}),
1);
TestSubscriber<Integer> ts = new TestSubscriber<>();
source.subscribe(ts);
ts.assertValue(1);
ts.assertTerminated();
ts.assertError(TestException.class);
assertEquals(Arrays.asList(1L, 1L, 1L), requests);
}
@Test
public void testErrorInParentObservable() {
TestSubscriber<Integer> ts = new TestSubscriber<>();
Observable.mergeDelayError(
Observable.just(Observable.just(1), Observable.just(2))
.startWith(Observable.<Integer>error(new RuntimeException())))
.subscribe(ts);
ts.awaitTerminalEvent();
ts.assertTerminated();
ts.assertValues(1, 2);
assertEquals(1, ts.errorCount());
}
@Test
public void testScanWithRequestOne() {
Observable<Integer> o =
Observable.just(1, 2)
.scan(
0,
new BiFunction<Integer, Integer, Integer>() {
@Override
public Integer apply(Integer t1, Integer t2) {
return t1 + t2;
}
})
.take(1);
TestSubscriber<Integer> subscriber = new TestSubscriber<>();
o.subscribe(subscriber);
subscriber.assertValue(0);
subscriber.assertTerminated();
subscriber.assertNoErrors();
}