/**
* 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.util.*;
import java.util.concurrent.*;
import java.util.concurrent.atomic.*;
import org.junit.*;
import org.mockito.InOrder;
import org.reactivestreams.*;
import io.reactivex.*;
import io.reactivex.exceptions.TestException;
import io.reactivex.functions.*;
import io.reactivex.internal.functions.Functions;
import io.reactivex.processors.PublishProcessor;
import io.reactivex.schedulers.*;
import io.reactivex.subscribers.*;
public class FlowableDelayTest {
private Subscriber<Long> observer;
private Subscriber<Long> observer2;
private TestScheduler scheduler;
@Before
public void before() {
observer = TestHelper.mockSubscriber();
observer2 = TestHelper.mockSubscriber();
scheduler = new TestScheduler();
}
@Test
public void testDelay() {
Flowable<Long> source = Flowable.interval(1L, TimeUnit.SECONDS, scheduler).take(3);
Flowable<Long> delayed = source.delay(500L, TimeUnit.MILLISECONDS, scheduler);
delayed.subscribe(observer);
InOrder inOrder = inOrder(observer);
scheduler.advanceTimeTo(1499L, TimeUnit.MILLISECONDS);
verify(observer, never()).onNext(anyLong());
verify(observer, never()).onComplete();
verify(observer, never()).onError(any(Throwable.class));
scheduler.advanceTimeTo(1500L, TimeUnit.MILLISECONDS);
inOrder.verify(observer, times(1)).onNext(0L);
inOrder.verify(observer, never()).onNext(anyLong());
verify(observer, never()).onComplete();
verify(observer, never()).onError(any(Throwable.class));
scheduler.advanceTimeTo(2400L, TimeUnit.MILLISECONDS);
inOrder.verify(observer, never()).onNext(anyLong());
verify(observer, never()).onComplete();
verify(observer, never()).onError(any(Throwable.class));
scheduler.advanceTimeTo(2500L, TimeUnit.MILLISECONDS);
inOrder.verify(observer, times(1)).onNext(1L);
inOrder.verify(observer, never()).onNext(anyLong());
verify(observer, never()).onComplete();
verify(observer, never()).onError(any(Throwable.class));
scheduler.advanceTimeTo(3400L, TimeUnit.MILLISECONDS);
inOrder.verify(observer, never()).onNext(anyLong());
verify(observer, never()).onComplete();
verify(observer, never()).onError(any(Throwable.class));
scheduler.advanceTimeTo(3500L, TimeUnit.MILLISECONDS);
inOrder.verify(observer, times(1)).onNext(2L);
verify(observer, times(1)).onComplete();
verify(observer, never()).onError(any(Throwable.class));
}
@Test
public void testLongDelay() {
Flowable<Long> source = Flowable.interval(1L, TimeUnit.SECONDS, scheduler).take(3);
Flowable<Long> delayed = source.delay(5L, TimeUnit.SECONDS, scheduler);
delayed.subscribe(observer);
InOrder inOrder = inOrder(observer);
scheduler.advanceTimeTo(5999L, TimeUnit.MILLISECONDS);
verify(observer, never()).onNext(anyLong());
verify(observer, never()).onComplete();
verify(observer, never()).onError(any(Throwable.class));
scheduler.advanceTimeTo(6000L, TimeUnit.MILLISECONDS);
inOrder.verify(observer, times(1)).onNext(0L);
scheduler.advanceTimeTo(6999L, TimeUnit.MILLISECONDS);
inOrder.verify(observer, never()).onNext(anyLong());
scheduler.advanceTimeTo(7000L, TimeUnit.MILLISECONDS);
inOrder.verify(observer, times(1)).onNext(1L);
scheduler.advanceTimeTo(7999L, TimeUnit.MILLISECONDS);
inOrder.verify(observer, never()).onNext(anyLong());
scheduler.advanceTimeTo(8000L, TimeUnit.MILLISECONDS);
inOrder.verify(observer, times(1)).onNext(2L);
inOrder.verify(observer, times(1)).onComplete();
inOrder.verify(observer, never()).onNext(anyLong());
inOrder.verify(observer, never()).onComplete();
verify(observer, never()).onError(any(Throwable.class));
}
@Test
public void testDelayWithError() {
Flowable<Long> source = Flowable.interval(1L, TimeUnit.SECONDS, scheduler)
.map(new Function<Long, Long>() {
@Override
public Long apply(Long value) {
if (value == 1L) {
throw new RuntimeException("error!");
}
return value;
}
});
Flowable<Long> delayed = source.delay(1L, TimeUnit.SECONDS, scheduler);
delayed.subscribe(observer);
InOrder inOrder = inOrder(observer);
scheduler.advanceTimeTo(1999L, TimeUnit.MILLISECONDS);
verify(observer, never()).onNext(anyLong());
verify(observer, never()).onComplete();
verify(observer, never()).onError(any(Throwable.class));
scheduler.advanceTimeTo(2000L, TimeUnit.MILLISECONDS);
inOrder.verify(observer, times(1)).onError(any(Throwable.class));
inOrder.verify(observer, never()).onNext(anyLong());
verify(observer, never()).onComplete();
scheduler.advanceTimeTo(5000L, TimeUnit.MILLISECONDS);
inOrder.verify(observer, never()).onNext(anyLong());
inOrder.verify(observer, never()).onError(any(Throwable.class));
verify(observer, never()).onComplete();
}
@Test
public void testDelayWithMultipleSubscriptions() {
Flowable<Long> source = Flowable.interval(1L, TimeUnit.SECONDS, scheduler).take(3);
Flowable<Long> delayed = source.delay(500L, TimeUnit.MILLISECONDS, scheduler);
delayed.subscribe(observer);
delayed.subscribe(observer2);
InOrder inOrder = inOrder(observer);
InOrder inOrder2 = inOrder(observer2);
scheduler.advanceTimeTo(1499L, TimeUnit.MILLISECONDS);
verify(observer, never()).onNext(anyLong());
verify(observer2, never()).onNext(anyLong());
scheduler.advanceTimeTo(1500L, TimeUnit.MILLISECONDS);
inOrder.verify(observer, times(1)).onNext(0L);
inOrder2.verify(observer2, times(1)).onNext(0L);
scheduler.advanceTimeTo(2499L, TimeUnit.MILLISECONDS);
inOrder.verify(observer, never()).onNext(anyLong());
inOrder2.verify(observer2, never()).onNext(anyLong());
scheduler.advanceTimeTo(2500L, TimeUnit.MILLISECONDS);
inOrder.verify(observer, times(1)).onNext(1L);
inOrder2.verify(observer2, times(1)).onNext(1L);
verify(observer, never()).onComplete();
verify(observer2, never()).onComplete();
scheduler.advanceTimeTo(3500L, TimeUnit.MILLISECONDS);
inOrder.verify(observer, times(1)).onNext(2L);
inOrder2.verify(observer2, times(1)).onNext(2L);
inOrder.verify(observer, never()).onNext(anyLong());
inOrder2.verify(observer2, never()).onNext(anyLong());
inOrder.verify(observer, times(1)).onComplete();
inOrder2.verify(observer2, times(1)).onComplete();
verify(observer, never()).onError(any(Throwable.class));
verify(observer2, never()).onError(any(Throwable.class));
}
@Test
public void testDelaySubscription() {
Flowable<Integer> result = Flowable.just(1, 2, 3).delaySubscription(100, TimeUnit.MILLISECONDS, scheduler);
Subscriber<Object> o = TestHelper.mockSubscriber();
InOrder inOrder = inOrder(o);
result.subscribe(o);
inOrder.verify(o, never()).onNext(any());
inOrder.verify(o, never()).onComplete();
scheduler.advanceTimeBy(100, TimeUnit.MILLISECONDS);
inOrder.verify(o, times(1)).onNext(1);
inOrder.verify(o, times(1)).onNext(2);
inOrder.verify(o, times(1)).onNext(3);
inOrder.verify(o, times(1)).onComplete();
verify(o, never()).onError(any(Throwable.class));
}
@Test
public void testDelaySubscriptionCancelBeforeTime() {
Flowable<Integer> result = Flowable.just(1, 2, 3).delaySubscription(100, TimeUnit.MILLISECONDS, scheduler);
Subscriber<Object> o = TestHelper.mockSubscriber();
TestSubscriber<Object> ts = new TestSubscriber<Object>(o);
result.subscribe(ts);
ts.dispose();
scheduler.advanceTimeBy(100, TimeUnit.MILLISECONDS);
verify(o, never()).onNext(any());
verify(o, never()).onComplete();
verify(o, never()).onError(any(Throwable.class));
}
@Test
public void testDelayWithFlowableNormal1() {
PublishProcessor<Integer> source = PublishProcessor.create();
final List<PublishProcessor<Integer>> delays = new ArrayList<PublishProcessor<Integer>>();
final int n = 10;
for (int i = 0; i < n; i++) {
PublishProcessor<Integer> delay = PublishProcessor.create();
delays.add(delay);
}
Function<Integer, Flowable<Integer>> delayFunc = new Function<Integer, Flowable<Integer>>() {
@Override
public Flowable<Integer> apply(Integer t1) {
return delays.get(t1);
}
};
Subscriber<Object> o = TestHelper.mockSubscriber();
InOrder inOrder = inOrder(o);
source.delay(delayFunc).subscribe(o);
for (int i = 0; i < n; i++) {
source.onNext(i);
delays.get(i).onNext(i);
inOrder.verify(o).onNext(i);
}
source.onComplete();
inOrder.verify(o).onComplete();
inOrder.verifyNoMoreInteractions();
verify(o, never()).onError(any(Throwable.class));
}
@Test
public void testDelayWithFlowableSingleSend1() {
PublishProcessor<Integer> source = PublishProcessor.create();
final PublishProcessor<Integer> delay = PublishProcessor.create();
Function<Integer, Flowable<Integer>> delayFunc = new Function<Integer, Flowable<Integer>>() {
@Override
public Flowable<Integer> apply(Integer t1) {
return delay;
}
};
Subscriber<Object> o = TestHelper.mockSubscriber();
InOrder inOrder = inOrder(o);
source.delay(delayFunc).subscribe(o);
source.onNext(1);
delay.onNext(1);
delay.onNext(2);
inOrder.verify(o).onNext(1);
inOrder.verifyNoMoreInteractions();
verify(o, never()).onError(any(Throwable.class));
}
@Test
public void testDelayWithFlowableSourceThrows() {
PublishProcessor<Integer> source = PublishProcessor.create();
final PublishProcessor<Integer> delay = PublishProcessor.create();
Function<Integer, Flowable<Integer>> delayFunc = new Function<Integer, Flowable<Integer>>() {
@Override
public Flowable<Integer> apply(Integer t1) {
return delay;
}
};
Subscriber<Object> o = TestHelper.mockSubscriber();
InOrder inOrder = inOrder(o);
source.delay(delayFunc).subscribe(o);
source.onNext(1);
source.onError(new TestException());
delay.onNext(1);
inOrder.verify(o).onError(any(TestException.class));
inOrder.verifyNoMoreInteractions();
verify(o, never()).onNext(any());
verify(o, never()).onComplete();
}
@Test
public void testDelayWithFlowableDelayFunctionThrows() {
PublishProcessor<Integer> source = PublishProcessor.create();
Function<Integer, Flowable<Integer>> delayFunc = new Function<Integer, Flowable<Integer>>() {
@Override
public Flowable<Integer> apply(Integer t1) {
throw new TestException();
}
};
Subscriber<Object> o = TestHelper.mockSubscriber();
InOrder inOrder = inOrder(o);
source.delay(delayFunc).subscribe(o);
source.onNext(1);
inOrder.verify(o).onError(any(TestException.class));
inOrder.verifyNoMoreInteractions();
verify(o, never()).onNext(any());
verify(o, never()).onComplete();
}
@Test
public void testDelayWithFlowableDelayThrows() {
PublishProcessor<Integer> source = PublishProcessor.create();
final PublishProcessor<Integer> delay = PublishProcessor.create();
Function<Integer, Flowable<Integer>> delayFunc = new Function<Integer, Flowable<Integer>>() {
@Override
public Flowable<Integer> apply(Integer t1) {
return delay;
}
};
Subscriber<Object> o = TestHelper.mockSubscriber();
InOrder inOrder = inOrder(o);
source.delay(delayFunc).subscribe(o);
source.onNext(1);
delay.onError(new TestException());
inOrder.verify(o).onError(any(TestException.class));
inOrder.verifyNoMoreInteractions();
verify(o, never()).onNext(any());
verify(o, never()).onComplete();
}
@Test
public void testDelayWithFlowableSubscriptionNormal() {
PublishProcessor<Integer> source = PublishProcessor.create();
final PublishProcessor<Integer> delay = PublishProcessor.create();
Function<Integer, Flowable<Integer>> delayFunc = new Function<Integer, Flowable<Integer>>() {
@Override
public Flowable<Integer> apply(Integer t1) {
return delay;
}
};
Subscriber<Object> o = TestHelper.mockSubscriber();
InOrder inOrder = inOrder(o);
source.delay(delay, delayFunc).subscribe(o);
source.onNext(1);
delay.onNext(1);
source.onNext(2);
delay.onNext(2);
inOrder.verify(o).onNext(2);
inOrder.verifyNoMoreInteractions();
verify(o, never()).onError(any(Throwable.class));
verify(o, never()).onComplete();
}
@Test
public void testDelayWithFlowableSubscriptionFunctionThrows() {
PublishProcessor<Integer> source = PublishProcessor.create();
final PublishProcessor<Integer> delay = PublishProcessor.create();
Callable<Flowable<Integer>> subFunc = new Callable<Flowable<Integer>>() {
@Override
public Flowable<Integer> call() {
throw new TestException();
}
};
Function<Integer, Flowable<Integer>> delayFunc = new Function<Integer, Flowable<Integer>>() {
@Override
public Flowable<Integer> apply(Integer t1) {
return delay;
}
};
Subscriber<Object> o = TestHelper.mockSubscriber();
InOrder inOrder = inOrder(o);
source.delay(Flowable.defer(subFunc), delayFunc).subscribe(o);
source.onNext(1);
delay.onNext(1);
source.onNext(2);
inOrder.verify(o).onError(any(TestException.class));
inOrder.verifyNoMoreInteractions();
verify(o, never()).onNext(any());
verify(o, never()).onComplete();
}
@Test
public void testDelayWithFlowableSubscriptionThrows() {
PublishProcessor<Integer> source = PublishProcessor.create();
final PublishProcessor<Integer> delay = PublishProcessor.create();
Callable<Flowable<Integer>> subFunc = new Callable<Flowable<Integer>>() {
@Override
public Flowable<Integer> call() {
return delay;
}
};
Function<Integer, Flowable<Integer>> delayFunc = new Function<Integer, Flowable<Integer>>() {
@Override
public Flowable<Integer> apply(Integer t1) {
return delay;
}
};
Subscriber<Object> o = TestHelper.mockSubscriber();
InOrder inOrder = inOrder(o);
source.delay(Flowable.defer(subFunc), delayFunc).subscribe(o);
source.onNext(1);
delay.onError(new TestException());
source.onNext(2);
inOrder.verify(o).onError(any(TestException.class));
inOrder.verifyNoMoreInteractions();
verify(o, never()).onNext(any());
verify(o, never()).onComplete();
}
@Test
public void testDelayWithFlowableEmptyDelayer() {
PublishProcessor<Integer> source = PublishProcessor.create();
Function<Integer, Flowable<Integer>> delayFunc = new Function<Integer, Flowable<Integer>>() {
@Override
public Flowable<Integer> apply(Integer t1) {
return Flowable.empty();
}
};
Subscriber<Object> o = TestHelper.mockSubscriber();
InOrder inOrder = inOrder(o);
source.delay(delayFunc).subscribe(o);
source.onNext(1);
source.onComplete();
inOrder.verify(o).onNext(1);
inOrder.verify(o).onComplete();
inOrder.verifyNoMoreInteractions();
verify(o, never()).onError(any(Throwable.class));
}
@Test
public void testDelayWithFlowableSubscriptionRunCompletion() {
PublishProcessor<Integer> source = PublishProcessor.create();
final PublishProcessor<Integer> sdelay = PublishProcessor.create();
final PublishProcessor<Integer> delay = PublishProcessor.create();
Callable<Flowable<Integer>> subFunc = new Callable<Flowable<Integer>>() {
@Override
public Flowable<Integer> call() {
return sdelay;
}
};
Function<Integer, Flowable<Integer>> delayFunc = new Function<Integer, Flowable<Integer>>() {
@Override
public Flowable<Integer> apply(Integer t1) {
return delay;
}
};
Subscriber<Object> o = TestHelper.mockSubscriber();
InOrder inOrder = inOrder(o);
source.delay(Flowable.defer(subFunc), delayFunc).subscribe(o);
source.onNext(1);
sdelay.onComplete();
source.onNext(2);
delay.onNext(2);
inOrder.verify(o).onNext(2);
inOrder.verifyNoMoreInteractions();
verify(o, never()).onError(any(Throwable.class));
verify(o, never()).onComplete();
}
@Test
public void testDelayWithFlowableAsTimed() {
Flowable<Long> source = Flowable.interval(1L, TimeUnit.SECONDS, scheduler).take(3);
final Flowable<Long> delayer = Flowable.timer(500L, TimeUnit.MILLISECONDS, scheduler);
Function<Long, Flowable<Long>> delayFunc = new Function<Long, Flowable<Long>>() {
@Override
public Flowable<Long> apply(Long t1) {
return delayer;
}
};
Flowable<Long> delayed = source.delay(delayFunc);
delayed.subscribe(observer);
InOrder inOrder = inOrder(observer);
scheduler.advanceTimeTo(1499L, TimeUnit.MILLISECONDS);
verify(observer, never()).onNext(anyLong());
verify(observer, never()).onComplete();
verify(observer, never()).onError(any(Throwable.class));
scheduler.advanceTimeTo(1500L, TimeUnit.MILLISECONDS);
inOrder.verify(observer, times(1)).onNext(0L);
inOrder.verify(observer, never()).onNext(anyLong());
verify(observer, never()).onComplete();
verify(observer, never()).onError(any(Throwable.class));
scheduler.advanceTimeTo(2400L, TimeUnit.MILLISECONDS);
inOrder.verify(observer, never()).onNext(anyLong());
verify(observer, never()).onComplete();
verify(observer, never()).onError(any(Throwable.class));
scheduler.advanceTimeTo(2500L, TimeUnit.MILLISECONDS);
inOrder.verify(observer, times(1)).onNext(1L);
inOrder.verify(observer, never()).onNext(anyLong());
verify(observer, never()).onComplete();
verify(observer, never()).onError(any(Throwable.class));
scheduler.advanceTimeTo(3400L, TimeUnit.MILLISECONDS);
inOrder.verify(observer, never()).onNext(anyLong());
verify(observer, never()).onComplete();
verify(observer, never()).onError(any(Throwable.class));
scheduler.advanceTimeTo(3500L, TimeUnit.MILLISECONDS);
inOrder.verify(observer, times(1)).onNext(2L);
verify(observer, times(1)).onComplete();
verify(observer, never()).onError(any(Throwable.class));
}
@Test
public void testDelayWithFlowableReorder() {
int n = 3;
PublishProcessor<Integer> source = PublishProcessor.create();
final List<PublishProcessor<Integer>> subjects = new ArrayList<PublishProcessor<Integer>>();
for (int i = 0; i < n; i++) {
subjects.add(PublishProcessor.<Integer> create());
}
Flowable<Integer> result = source.delay(new Function<Integer, Flowable<Integer>>() {
@Override
public Flowable<Integer> apply(Integer t1) {
return subjects.get(t1);
}
});
Subscriber<Object> o = TestHelper.mockSubscriber();
InOrder inOrder = inOrder(o);
result.subscribe(o);
for (int i = 0; i < n; i++) {
source.onNext(i);
}
source.onComplete();
inOrder.verify(o, never()).onNext(anyInt());
inOrder.verify(o, never()).onComplete();
for (int i = n - 1; i >= 0; i--) {
subjects.get(i).onComplete();
inOrder.verify(o).onNext(i);
}
inOrder.verify(o).onComplete();
verify(o, never()).onError(any(Throwable.class));
}
@Test
public void testDelayEmitsEverything() {
Flowable<Integer> source = Flowable.range(1, 5);
Flowable<Integer> delayed = source.delay(500L, TimeUnit.MILLISECONDS, scheduler);
delayed = delayed.doOnEach(new Consumer<Notification<Integer>>() {
@Override
public void accept(Notification<Integer> t1) {
System.out.println(t1);
}
});
TestSubscriber<Integer> observer = new TestSubscriber<Integer>();
delayed.subscribe(observer);
// all will be delivered after 500ms since range does not delay between them
scheduler.advanceTimeBy(500L, TimeUnit.MILLISECONDS);
observer.assertValues(1, 2, 3, 4, 5);
}
@Test
public void testBackpressureWithTimedDelay() {
TestSubscriber<Integer> ts = new TestSubscriber<Integer>();
Flowable.range(1, Flowable.bufferSize() * 2)
.delay(100, TimeUnit.MILLISECONDS)
.observeOn(Schedulers.computation())
.map(new Function<Integer, Integer>() {
int c;
@Override
public Integer apply(Integer t) {
if (c++ <= 0) {
try {
Thread.sleep(500);
} catch (InterruptedException e) {
}
}
return t;
}
}).subscribe(ts);
ts.awaitTerminalEvent();
ts.assertNoErrors();
assertEquals(Flowable.bufferSize() * 2, ts.valueCount());
}
@Test
public void testBackpressureWithSubscriptionTimedDelay() {
TestSubscriber<Integer> ts = new TestSubscriber<Integer>();
Flowable.range(1, Flowable.bufferSize() * 2)
.delaySubscription(100, TimeUnit.MILLISECONDS)
.delay(100, TimeUnit.MILLISECONDS)
.observeOn(Schedulers.computation())
.map(new Function<Integer, Integer>() {
int c;
@Override
public Integer apply(Integer t) {
if (c++ <= 0) {
try {
Thread.sleep(500);
} catch (InterruptedException e) {
}
}
return t;
}
}).subscribe(ts);
ts.awaitTerminalEvent();
ts.assertNoErrors();
assertEquals(Flowable.bufferSize() * 2, ts.valueCount());
}
@Test
public void testBackpressureWithSelectorDelay() {
TestSubscriber<Integer> ts = new TestSubscriber<Integer>();
Flowable.range(1, Flowable.bufferSize() * 2)
.delay(new Function<Integer, Flowable<Long>>() {
@Override
public Flowable<Long> apply(Integer i) {
return Flowable.timer(100, TimeUnit.MILLISECONDS);
}
})
.observeOn(Schedulers.computation())
.map(new Function<Integer, Integer>() {
int c;
@Override
public Integer apply(Integer t) {
if (c++ <= 0) {
try {
Thread.sleep(500);
} catch (InterruptedException e) {
}
}
return t;
}
}).subscribe(ts);
ts.awaitTerminalEvent();
ts.assertNoErrors();
assertEquals(Flowable.bufferSize() * 2, ts.valueCount());
}
@Test
public void testBackpressureWithSelectorDelayAndSubscriptionDelay() {
TestSubscriber<Integer> ts = new TestSubscriber<Integer>();
Flowable.range(1, Flowable.bufferSize() * 2)
.delay(Flowable.defer(new Callable<Flowable<Long>>() {
@Override
public Flowable<Long> call() {
return Flowable.timer(500, TimeUnit.MILLISECONDS);
}
}), new Function<Integer, Flowable<Long>>() {
@Override
public Flowable<Long> apply(Integer i) {
return Flowable.timer(100, TimeUnit.MILLISECONDS);
}
})
.observeOn(Schedulers.computation())
.map(new Function<Integer, Integer>() {
int c;
@Override
public Integer apply(Integer t) {
if (c++ <= 0) {
try {
Thread.sleep(500);
} catch (InterruptedException e) {
}
}
return t;
}
}).subscribe(ts);
ts.awaitTerminalEvent();
ts.assertNoErrors();
assertEquals(Flowable.bufferSize() * 2, ts.valueCount());
}
@Test
public void testErrorRunsBeforeOnNext() {
TestScheduler test = new TestScheduler();
PublishProcessor<Integer> ps = PublishProcessor.create();
TestSubscriber<Integer> ts = new TestSubscriber<Integer>();
ps.delay(1, TimeUnit.SECONDS, test).subscribe(ts);
ps.onNext(1);
test.advanceTimeBy(500, TimeUnit.MILLISECONDS);
ps.onError(new TestException());
test.advanceTimeBy(1, TimeUnit.SECONDS);
ts.assertNoValues();
ts.assertError(TestException.class);
ts.assertNotComplete();
}
@Test
public void testDelaySupplierSimple() {
final PublishProcessor<Integer> ps = PublishProcessor.create();
Flowable<Integer> source = Flowable.range(1, 5);
TestSubscriber<Integer> ts = new TestSubscriber<Integer>();
source.delaySubscription(Flowable.defer(new Callable<Publisher<Integer>>() {
@Override
public Publisher<Integer> call() {
return ps;
}
})).subscribe(ts);
ts.assertNoValues();
ts.assertNoErrors();
ts.assertNotComplete();
ps.onNext(1);
ts.assertValues(1, 2, 3, 4, 5);
ts.assertComplete();
ts.assertNoErrors();
}
@Test
public void testDelaySupplierCompletes() {
final PublishProcessor<Integer> ps = PublishProcessor.create();
Flowable<Integer> source = Flowable.range(1, 5);
TestSubscriber<Integer> ts = new TestSubscriber<Integer>();
source.delaySubscription(Flowable.defer(new Callable<Publisher<Integer>>() {
@Override
public Publisher<Integer> call() {
return ps;
}
})).subscribe(ts);
ts.assertNoValues();
ts.assertNoErrors();
ts.assertNotComplete();
// FIXME should this complete the source instead of consuming it?
ps.onComplete();
ts.assertValues(1, 2, 3, 4, 5);
ts.assertComplete();
ts.assertNoErrors();
}
@Test
public void testDelaySupplierErrors() {
final PublishProcessor<Integer> ps = PublishProcessor.create();
Flowable<Integer> source = Flowable.range(1, 5);
TestSubscriber<Integer> ts = new TestSubscriber<Integer>();
source.delaySubscription(Flowable.defer(new Callable<Publisher<Integer>>() {
@Override
public Publisher<Integer> call() {
return ps;
}
})).subscribe(ts);
ts.assertNoValues();
ts.assertNoErrors();
ts.assertNotComplete();
ps.onError(new TestException());
ts.assertNoValues();
ts.assertNotComplete();
ts.assertError(TestException.class);
}
@Test
public void delayAndTakeUntilNeverSubscribeToSource() {
PublishProcessor<Integer> delayUntil = PublishProcessor.create();
PublishProcessor<Integer> interrupt = PublishProcessor.create();
final AtomicBoolean subscribed = new AtomicBoolean(false);
Flowable.just(1)
.doOnSubscribe(new Consumer<Object>() {
@Override
public void accept(Object o) {
subscribed.set(true);
}
})
.delaySubscription(delayUntil)
.takeUntil(interrupt)
.subscribe();
interrupt.onNext(9000);
delayUntil.onNext(1);
Assert.assertFalse(subscribed.get());
}
@Test
public void delayWithTimeDelayError() throws Exception {
Flowable.just(1).concatWith(Flowable.<Integer>error(new TestException()))
.delay(100, TimeUnit.MILLISECONDS, true)
.test()
.awaitDone(5, TimeUnit.SECONDS)
.assertFailure(TestException.class, 1);
}
@Test
public void testDelaySubscriptionDisposeBeforeTime() {
Flowable<Integer> result = Flowable.just(1, 2, 3).delaySubscription(100, TimeUnit.MILLISECONDS, scheduler);
Subscriber<Object> o = TestHelper.mockSubscriber();
TestSubscriber<Object> ts = new TestSubscriber<Object>(o);
result.subscribe(ts);
ts.dispose();
scheduler.advanceTimeBy(100, TimeUnit.MILLISECONDS);
verify(o, never()).onNext(any());
verify(o, never()).onComplete();
verify(o, never()).onError(any(Throwable.class));
}
@Test
public void testOnErrorCalledOnScheduler() throws Exception {
final CountDownLatch latch = new CountDownLatch(1);
final AtomicReference<Thread> thread = new AtomicReference<Thread>();
Flowable.<String>error(new Exception())
.delay(0, TimeUnit.MILLISECONDS, Schedulers.newThread())
.doOnError(new Consumer<Throwable>() {
@Override
public void accept(Throwable throwable) throws Exception {
thread.set(Thread.currentThread());
latch.countDown();
}
})
.onErrorResumeNext(Flowable.<String>empty())
.subscribe();
latch.await();
assertNotEquals(Thread.currentThread(), thread.get());
}
@Test
public void dispose() {
TestHelper.checkDisposed(PublishProcessor.create().delay(1, TimeUnit.SECONDS));
TestHelper.checkDisposed(PublishProcessor.create().delay(Functions.justFunction(Flowable.never())));
}
@Test
public void doubleOnSubscribe() {
TestHelper.checkDoubleOnSubscribeFlowable(new Function<Flowable<Object>, Flowable<Object>>() {
@Override
public Flowable<Object> apply(Flowable<Object> o) throws Exception {
return o.delay(1, TimeUnit.SECONDS);
}
});
TestHelper.checkDoubleOnSubscribeFlowable(new Function<Flowable<Object>, Flowable<Object>>() {
@Override
public Flowable<Object> apply(Flowable<Object> o) throws Exception {
return o.delay(Functions.justFunction(Flowable.never()));
}
});
}
@Test
public void onCompleteFinal() {
TestScheduler scheduler = new TestScheduler();
Flowable.empty()
.delay(1, TimeUnit.MILLISECONDS, scheduler)
.subscribe(new DisposableSubscriber<Object>() {
@Override
public void onNext(Object value) {
}
@Override
public void onError(Throwable e) {
}
@Override
public void onComplete() {
throw new TestException();
}
});
try {
scheduler.advanceTimeBy(1, TimeUnit.SECONDS);
fail("Should have thrown");
} catch (TestException ex) {
// expected
}
}
@Test
public void onErrorFinal() {
TestScheduler scheduler = new TestScheduler();
Flowable.error(new TestException())
.delay(1, TimeUnit.MILLISECONDS, scheduler)
.subscribe(new DisposableSubscriber<Object>() {
@Override
public void onNext(Object value) {
}
@Override
public void onError(Throwable e) {
throw new TestException();
}
@Override
public void onComplete() {
}
});
try {
scheduler.advanceTimeBy(1, TimeUnit.SECONDS);
fail("Should have thrown");
} catch (TestException ex) {
// expected
}
}
}