/**
* Copyright (c) 2016-present, RxJava Contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License is
* distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See
* the License for the specific language governing permissions and limitations under the License.
*/
package io.reactivex.internal.operators.flowable;
import static org.junit.Assert.*;
import static org.mockito.ArgumentMatchers.*;
import static org.mockito.Mockito.*;
import java.io.IOException;
import java.util.List;
import java.util.concurrent.*;
import org.junit.*;
import org.mockito.InOrder;
import org.reactivestreams.*;
import io.reactivex.*;
import io.reactivex.exceptions.TestException;
import io.reactivex.internal.subscriptions.BooleanSubscription;
import io.reactivex.plugins.RxJavaPlugins;
import io.reactivex.processors.PublishProcessor;
import io.reactivex.schedulers.TestScheduler;
import io.reactivex.subscribers.TestSubscriber;
public class FlowableTimeoutTests {
private PublishProcessor<String> underlyingSubject;
private TestScheduler testScheduler;
private Flowable<String> withTimeout;
private static final long TIMEOUT = 3;
private static final TimeUnit TIME_UNIT = TimeUnit.SECONDS;
@Before
public void setUp() {
underlyingSubject = PublishProcessor.create();
testScheduler = new TestScheduler();
withTimeout = underlyingSubject.timeout(TIMEOUT, TIME_UNIT, testScheduler);
}
@Test
public void shouldNotTimeoutIfOnNextWithinTimeout() {
Subscriber<String> observer = TestHelper.mockSubscriber();
TestSubscriber<String> ts = new TestSubscriber<String>(observer);
withTimeout.subscribe(ts);
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
underlyingSubject.onNext("One");
verify(observer).onNext("One");
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
verify(observer, never()).onError(any(Throwable.class));
ts.cancel();
}
@Test
public void shouldNotTimeoutIfSecondOnNextWithinTimeout() {
Subscriber<String> observer = TestHelper.mockSubscriber();
TestSubscriber<String> ts = new TestSubscriber<String>(observer);
withTimeout.subscribe(ts);
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
underlyingSubject.onNext("One");
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
underlyingSubject.onNext("Two");
verify(observer).onNext("Two");
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
verify(observer, never()).onError(any(Throwable.class));
ts.dispose();
}
@Test
public void shouldTimeoutIfOnNextNotWithinTimeout() {
Subscriber<String> observer = TestHelper.mockSubscriber();
TestSubscriber<String> ts = new TestSubscriber<String>(observer);
withTimeout.subscribe(ts);
testScheduler.advanceTimeBy(TIMEOUT + 1, TimeUnit.SECONDS);
verify(observer).onError(any(TimeoutException.class));
ts.dispose();
}
@Test
public void shouldTimeoutIfSecondOnNextNotWithinTimeout() {
Subscriber<String> observer = TestHelper.mockSubscriber();
TestSubscriber<String> ts = new TestSubscriber<String>(observer);
withTimeout.subscribe(observer);
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
underlyingSubject.onNext("One");
verify(observer).onNext("One");
testScheduler.advanceTimeBy(TIMEOUT + 1, TimeUnit.SECONDS);
verify(observer).onError(any(TimeoutException.class));
ts.dispose();
}
@Test
public void shouldCompleteIfUnderlyingComletes() {
Subscriber<String> observer = TestHelper.mockSubscriber();
TestSubscriber<String> ts = new TestSubscriber<String>(observer);
withTimeout.subscribe(observer);
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
underlyingSubject.onComplete();
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
verify(observer).onComplete();
verify(observer, never()).onError(any(Throwable.class));
ts.dispose();
}
@Test
public void shouldErrorIfUnderlyingErrors() {
Subscriber<String> observer = TestHelper.mockSubscriber();
TestSubscriber<String> ts = new TestSubscriber<String>(observer);
withTimeout.subscribe(observer);
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
underlyingSubject.onError(new UnsupportedOperationException());
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
verify(observer).onError(any(UnsupportedOperationException.class));
ts.dispose();
}
@Test
public void shouldSwitchToOtherIfOnNextNotWithinTimeout() {
Flowable<String> other = Flowable.just("a", "b", "c");
Flowable<String> source = underlyingSubject.timeout(TIMEOUT, TIME_UNIT, testScheduler, other);
Subscriber<String> observer = TestHelper.mockSubscriber();
TestSubscriber<String> ts = new TestSubscriber<String>(observer);
source.subscribe(ts);
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
underlyingSubject.onNext("One");
testScheduler.advanceTimeBy(4, TimeUnit.SECONDS);
underlyingSubject.onNext("Two");
InOrder inOrder = inOrder(observer);
inOrder.verify(observer, times(1)).onNext("One");
inOrder.verify(observer, times(1)).onNext("a");
inOrder.verify(observer, times(1)).onNext("b");
inOrder.verify(observer, times(1)).onNext("c");
inOrder.verify(observer, times(1)).onComplete();
inOrder.verifyNoMoreInteractions();
ts.dispose();
}
@Test
public void shouldSwitchToOtherIfOnErrorNotWithinTimeout() {
Flowable<String> other = Flowable.just("a", "b", "c");
Flowable<String> source = underlyingSubject.timeout(TIMEOUT, TIME_UNIT, testScheduler, other);
Subscriber<String> observer = TestHelper.mockSubscriber();
TestSubscriber<String> ts = new TestSubscriber<String>(observer);
source.subscribe(ts);
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
underlyingSubject.onNext("One");
testScheduler.advanceTimeBy(4, TimeUnit.SECONDS);
underlyingSubject.onError(new UnsupportedOperationException());
InOrder inOrder = inOrder(observer);
inOrder.verify(observer, times(1)).onNext("One");
inOrder.verify(observer, times(1)).onNext("a");
inOrder.verify(observer, times(1)).onNext("b");
inOrder.verify(observer, times(1)).onNext("c");
inOrder.verify(observer, times(1)).onComplete();
inOrder.verifyNoMoreInteractions();
ts.dispose();
}
@Test
public void shouldSwitchToOtherIfOnCompletedNotWithinTimeout() {
Flowable<String> other = Flowable.just("a", "b", "c");
Flowable<String> source = underlyingSubject.timeout(TIMEOUT, TIME_UNIT, testScheduler, other);
Subscriber<String> observer = TestHelper.mockSubscriber();
TestSubscriber<String> ts = new TestSubscriber<String>(observer);
source.subscribe(ts);
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
underlyingSubject.onNext("One");
testScheduler.advanceTimeBy(4, TimeUnit.SECONDS);
underlyingSubject.onComplete();
InOrder inOrder = inOrder(observer);
inOrder.verify(observer, times(1)).onNext("One");
inOrder.verify(observer, times(1)).onNext("a");
inOrder.verify(observer, times(1)).onNext("b");
inOrder.verify(observer, times(1)).onNext("c");
inOrder.verify(observer, times(1)).onComplete();
inOrder.verifyNoMoreInteractions();
ts.dispose();
}
@Test
public void shouldSwitchToOtherAndCanBeUnsubscribedIfOnNextNotWithinTimeout() {
PublishProcessor<String> other = PublishProcessor.create();
Flowable<String> source = underlyingSubject.timeout(TIMEOUT, TIME_UNIT, testScheduler, other);
Subscriber<String> observer = TestHelper.mockSubscriber();
TestSubscriber<String> ts = new TestSubscriber<String>(observer);
source.subscribe(ts);
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
underlyingSubject.onNext("One");
testScheduler.advanceTimeBy(4, TimeUnit.SECONDS);
underlyingSubject.onNext("Two");
other.onNext("a");
other.onNext("b");
ts.dispose();
// The following messages should not be delivered.
other.onNext("c");
other.onNext("d");
other.onComplete();
InOrder inOrder = inOrder(observer);
inOrder.verify(observer, times(1)).onNext("One");
inOrder.verify(observer, times(1)).onNext("a");
inOrder.verify(observer, times(1)).onNext("b");
inOrder.verifyNoMoreInteractions();
}
@Test
public void shouldTimeoutIfSynchronizedFlowableEmitFirstOnNextNotWithinTimeout()
throws InterruptedException {
final CountDownLatch exit = new CountDownLatch(1);
final CountDownLatch timeoutSetuped = new CountDownLatch(1);
final Subscriber<String> observer = TestHelper.mockSubscriber();
final TestSubscriber<String> ts = new TestSubscriber<String>(observer);
new Thread(new Runnable() {
@Override
public void run() {
Flowable.unsafeCreate(new Publisher<String>() {
@Override
public void subscribe(Subscriber<? super String> subscriber) {
subscriber.onSubscribe(new BooleanSubscription());
try {
timeoutSetuped.countDown();
exit.await();
} catch (InterruptedException e) {
e.printStackTrace();
}
subscriber.onNext("a");
subscriber.onComplete();
}
}).timeout(1, TimeUnit.SECONDS, testScheduler)
.subscribe(ts);
}
}).start();
timeoutSetuped.await();
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
InOrder inOrder = inOrder(observer);
inOrder.verify(observer, times(1)).onError(isA(TimeoutException.class));
inOrder.verifyNoMoreInteractions();
exit.countDown(); // exit the thread
}
@Test
public void shouldUnsubscribeFromUnderlyingSubscriptionOnTimeout() throws InterruptedException {
// From https://github.com/ReactiveX/RxJava/pull/951
final Subscription s = mock(Subscription.class);
Flowable<String> never = Flowable.unsafeCreate(new Publisher<String>() {
@Override
public void subscribe(Subscriber<? super String> subscriber) {
subscriber.onSubscribe(s);
}
});
TestScheduler testScheduler = new TestScheduler();
Flowable<String> observableWithTimeout = never.timeout(1000, TimeUnit.MILLISECONDS, testScheduler);
Subscriber<String> observer = TestHelper.mockSubscriber();
TestSubscriber<String> ts = new TestSubscriber<String>(observer);
observableWithTimeout.subscribe(ts);
testScheduler.advanceTimeBy(2000, TimeUnit.MILLISECONDS);
InOrder inOrder = inOrder(observer);
inOrder.verify(observer).onError(isA(TimeoutException.class));
inOrder.verifyNoMoreInteractions();
verify(s, times(1)).cancel();
}
@Test
@Ignore("s should be considered cancelled upon executing onComplete and not expect downstream to call cancel")
public void shouldUnsubscribeFromUnderlyingSubscriptionOnImmediatelyComplete() {
// From https://github.com/ReactiveX/RxJava/pull/951
final Subscription s = mock(Subscription.class);
Flowable<String> immediatelyComplete = Flowable.unsafeCreate(new Publisher<String>() {
@Override
public void subscribe(Subscriber<? super String> subscriber) {
subscriber.onSubscribe(s);
subscriber.onComplete();
}
});
TestScheduler testScheduler = new TestScheduler();
Flowable<String> observableWithTimeout = immediatelyComplete.timeout(1000, TimeUnit.MILLISECONDS,
testScheduler);
Subscriber<String> observer = TestHelper.mockSubscriber();
TestSubscriber<String> ts = new TestSubscriber<String>(observer);
observableWithTimeout.subscribe(ts);
testScheduler.advanceTimeBy(2000, TimeUnit.MILLISECONDS);
InOrder inOrder = inOrder(observer);
inOrder.verify(observer).onComplete();
inOrder.verifyNoMoreInteractions();
verify(s, times(1)).cancel();
}
@Test
@Ignore("s should be considered cancelled upon executing onError and not expect downstream to call cancel")
public void shouldUnsubscribeFromUnderlyingSubscriptionOnImmediatelyErrored() throws InterruptedException {
// From https://github.com/ReactiveX/RxJava/pull/951
final Subscription s = mock(Subscription.class);
Flowable<String> immediatelyError = Flowable.unsafeCreate(new Publisher<String>() {
@Override
public void subscribe(Subscriber<? super String> subscriber) {
subscriber.onSubscribe(s);
subscriber.onError(new IOException("Error"));
}
});
TestScheduler testScheduler = new TestScheduler();
Flowable<String> observableWithTimeout = immediatelyError.timeout(1000, TimeUnit.MILLISECONDS,
testScheduler);
Subscriber<String> observer = TestHelper.mockSubscriber();
TestSubscriber<String> ts = new TestSubscriber<String>(observer);
observableWithTimeout.subscribe(ts);
testScheduler.advanceTimeBy(2000, TimeUnit.MILLISECONDS);
InOrder inOrder = inOrder(observer);
inOrder.verify(observer).onError(isA(IOException.class));
inOrder.verifyNoMoreInteractions();
verify(s, times(1)).cancel();
}
@Test
public void shouldUnsubscribeFromUnderlyingSubscriptionOnDispose() {
final PublishProcessor<String> subject = PublishProcessor.create();
final TestScheduler scheduler = new TestScheduler();
final TestSubscriber<String> observer = subject
.timeout(100, TimeUnit.MILLISECONDS, scheduler)
.test();
assertTrue(subject.hasSubscribers());
observer.dispose();
assertFalse(subject.hasSubscribers());
}
@Test
public void timedAndOther() {
Flowable.never().timeout(100, TimeUnit.MILLISECONDS, Flowable.just(1))
.test()
.awaitDone(5, TimeUnit.SECONDS)
.assertResult(1);
}
@Test
public void disposed() {
TestHelper.checkDisposed(PublishProcessor.create().timeout(1, TimeUnit.DAYS));
TestHelper.checkDisposed(PublishProcessor.create().timeout(1, TimeUnit.DAYS, Flowable.just(1)));
}
@Test
public void timedErrorOther() {
Flowable.error(new TestException())
.timeout(1, TimeUnit.DAYS, Flowable.just(1))
.test()
.assertFailure(TestException.class);
}
@Test
public void timedError() {
Flowable.error(new TestException())
.timeout(1, TimeUnit.DAYS)
.test()
.assertFailure(TestException.class);
}
@Test
public void timedEmptyOther() {
Flowable.empty()
.timeout(1, TimeUnit.DAYS, Flowable.just(1))
.test()
.assertResult();
}
@Test
public void timedEmpty() {
Flowable.empty()
.timeout(1, TimeUnit.DAYS)
.test()
.assertResult();
}
@Test
public void newTimer() {
FlowableTimeoutTimed.NEW_TIMER.dispose();
assertTrue(FlowableTimeoutTimed.NEW_TIMER.isDisposed());
}
@Test
public void badSource() {
List<Throwable> errors = TestHelper.trackPluginErrors();
try {
new Flowable<Integer>() {
@Override
protected void subscribeActual(Subscriber<? super Integer> observer) {
observer.onSubscribe(new BooleanSubscription());
observer.onNext(1);
observer.onComplete();
observer.onNext(2);
observer.onError(new TestException());
observer.onComplete();
}
}
.timeout(1, TimeUnit.DAYS)
.test()
.assertResult(1);
TestHelper.assertUndeliverable(errors, 0, TestException.class);
} finally {
RxJavaPlugins.reset();
}
}
@Test
public void badSourceOther() {
List<Throwable> errors = TestHelper.trackPluginErrors();
try {
new Flowable<Integer>() {
@Override
protected void subscribeActual(Subscriber<? super Integer> observer) {
observer.onSubscribe(new BooleanSubscription());
observer.onNext(1);
observer.onComplete();
observer.onNext(2);
observer.onError(new TestException());
observer.onComplete();
}
}
.timeout(1, TimeUnit.DAYS, Flowable.just(3))
.test()
.assertResult(1);
TestHelper.assertUndeliverable(errors, 0, TestException.class);
} finally {
RxJavaPlugins.reset();
}
}
@Test
public void timedTake() {
PublishProcessor<Integer> ps = PublishProcessor.create();
TestSubscriber<Integer> to = ps.timeout(1, TimeUnit.DAYS)
.take(1)
.test();
assertTrue(ps.hasSubscribers());
ps.onNext(1);
assertFalse(ps.hasSubscribers());
to.assertResult(1);
}
@Test
public void timedFallbackTake() {
PublishProcessor<Integer> ps = PublishProcessor.create();
TestSubscriber<Integer> to = ps.timeout(1, TimeUnit.DAYS, Flowable.just(2))
.take(1)
.test();
assertTrue(ps.hasSubscribers());
ps.onNext(1);
assertFalse(ps.hasSubscribers());
to.assertResult(1);
}
}