/**
* 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.observable;
import static org.junit.Assert.*;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.*;
import java.util.*;
import java.util.concurrent.*;
import org.junit.*;
import org.mockito.*;
import io.reactivex.*;
import io.reactivex.Observable;
import io.reactivex.Observer;
import io.reactivex.disposables.Disposables;
import io.reactivex.exceptions.TestException;
import io.reactivex.functions.*;
import io.reactivex.internal.functions.Functions;
import io.reactivex.observers.*;
import io.reactivex.schedulers.*;
import io.reactivex.subjects.PublishSubject;
public class ObservableBufferTest {
private Observer<List<String>> observer;
private TestScheduler scheduler;
private Scheduler.Worker innerScheduler;
@Before
public void before() {
observer = TestHelper.mockObserver();
scheduler = new TestScheduler();
innerScheduler = scheduler.createWorker();
}
@Test
public void testComplete() {
Observable<String> source = Observable.empty();
Observable<List<String>> buffered = source.buffer(3, 3);
buffered.subscribe(observer);
Mockito.verify(observer, Mockito.never()).onNext(Mockito.<String>anyList());
Mockito.verify(observer, Mockito.never()).onError(Mockito.any(Throwable.class));
Mockito.verify(observer, Mockito.times(1)).onComplete();
}
@Test
public void testSkipAndCountOverlappingBuffers() {
Observable<String> source = Observable.unsafeCreate(new ObservableSource<String>() {
@Override
public void subscribe(Observer<? super String> observer) {
observer.onSubscribe(Disposables.empty());
observer.onNext("one");
observer.onNext("two");
observer.onNext("three");
observer.onNext("four");
observer.onNext("five");
}
});
Observable<List<String>> buffered = source.buffer(3, 1);
buffered.subscribe(observer);
InOrder inOrder = Mockito.inOrder(observer);
inOrder.verify(observer, Mockito.times(1)).onNext(list("one", "two", "three"));
inOrder.verify(observer, Mockito.times(1)).onNext(list("two", "three", "four"));
inOrder.verify(observer, Mockito.times(1)).onNext(list("three", "four", "five"));
inOrder.verify(observer, Mockito.never()).onNext(Mockito.<String>anyList());
inOrder.verify(observer, Mockito.never()).onError(Mockito.any(Throwable.class));
inOrder.verify(observer, Mockito.never()).onComplete();
}
@Test
public void testSkipAndCountGaplessBuffers() {
Observable<String> source = Observable.just("one", "two", "three", "four", "five");
Observable<List<String>> buffered = source.buffer(3, 3);
buffered.subscribe(observer);
InOrder inOrder = Mockito.inOrder(observer);
inOrder.verify(observer, Mockito.times(1)).onNext(list("one", "two", "three"));
inOrder.verify(observer, Mockito.times(1)).onNext(list("four", "five"));
inOrder.verify(observer, Mockito.never()).onNext(Mockito.<String>anyList());
inOrder.verify(observer, Mockito.never()).onError(Mockito.any(Throwable.class));
inOrder.verify(observer, Mockito.times(1)).onComplete();
}
@Test
public void testSkipAndCountBuffersWithGaps() {
Observable<String> source = Observable.just("one", "two", "three", "four", "five");
Observable<List<String>> buffered = source.buffer(2, 3);
buffered.subscribe(observer);
InOrder inOrder = Mockito.inOrder(observer);
inOrder.verify(observer, Mockito.times(1)).onNext(list("one", "two"));
inOrder.verify(observer, Mockito.times(1)).onNext(list("four", "five"));
inOrder.verify(observer, Mockito.never()).onNext(Mockito.<String>anyList());
inOrder.verify(observer, Mockito.never()).onError(Mockito.any(Throwable.class));
inOrder.verify(observer, Mockito.times(1)).onComplete();
}
@Test
public void testTimedAndCount() {
Observable<String> source = Observable.unsafeCreate(new ObservableSource<String>() {
@Override
public void subscribe(Observer<? super String> observer) {
observer.onSubscribe(Disposables.empty());
push(observer, "one", 10);
push(observer, "two", 90);
push(observer, "three", 110);
push(observer, "four", 190);
push(observer, "five", 210);
complete(observer, 250);
}
});
Observable<List<String>> buffered = source.buffer(100, TimeUnit.MILLISECONDS, scheduler, 2);
buffered.subscribe(observer);
InOrder inOrder = Mockito.inOrder(observer);
scheduler.advanceTimeTo(100, TimeUnit.MILLISECONDS);
inOrder.verify(observer, Mockito.times(1)).onNext(list("one", "two"));
scheduler.advanceTimeTo(200, TimeUnit.MILLISECONDS);
inOrder.verify(observer, Mockito.times(1)).onNext(list("three", "four"));
scheduler.advanceTimeTo(300, TimeUnit.MILLISECONDS);
inOrder.verify(observer, Mockito.times(1)).onNext(list("five"));
inOrder.verify(observer, Mockito.never()).onNext(Mockito.<String>anyList());
inOrder.verify(observer, Mockito.never()).onError(Mockito.any(Throwable.class));
inOrder.verify(observer, Mockito.times(1)).onComplete();
}
@Test
public void testTimed() {
Observable<String> source = Observable.unsafeCreate(new ObservableSource<String>() {
@Override
public void subscribe(Observer<? super String> observer) {
observer.onSubscribe(Disposables.empty());
push(observer, "one", 97);
push(observer, "two", 98);
/**
* Changed from 100. Because scheduling the cut to 100ms happens before this
* Observable even runs due how lift works, pushing at 100ms would execute after the
* buffer cut.
*/
push(observer, "three", 99);
push(observer, "four", 101);
push(observer, "five", 102);
complete(observer, 150);
}
});
Observable<List<String>> buffered = source.buffer(100, TimeUnit.MILLISECONDS, scheduler);
buffered.subscribe(observer);
InOrder inOrder = Mockito.inOrder(observer);
scheduler.advanceTimeTo(101, TimeUnit.MILLISECONDS);
inOrder.verify(observer, Mockito.times(1)).onNext(list("one", "two", "three"));
scheduler.advanceTimeTo(201, TimeUnit.MILLISECONDS);
inOrder.verify(observer, Mockito.times(1)).onNext(list("four", "five"));
inOrder.verify(observer, Mockito.never()).onNext(Mockito.<String>anyList());
inOrder.verify(observer, Mockito.never()).onError(Mockito.any(Throwable.class));
inOrder.verify(observer, Mockito.times(1)).onComplete();
}
@Test
public void testObservableBasedOpenerAndCloser() {
Observable<String> source = Observable.unsafeCreate(new ObservableSource<String>() {
@Override
public void subscribe(Observer<? super String> observer) {
observer.onSubscribe(Disposables.empty());
push(observer, "one", 10);
push(observer, "two", 60);
push(observer, "three", 110);
push(observer, "four", 160);
push(observer, "five", 210);
complete(observer, 500);
}
});
Observable<Object> openings = Observable.unsafeCreate(new ObservableSource<Object>() {
@Override
public void subscribe(Observer<Object> observer) {
observer.onSubscribe(Disposables.empty());
push(observer, new Object(), 50);
push(observer, new Object(), 200);
complete(observer, 250);
}
});
Function<Object, Observable<Object>> closer = new Function<Object, Observable<Object>>() {
@Override
public Observable<Object> apply(Object opening) {
return Observable.unsafeCreate(new ObservableSource<Object>() {
@Override
public void subscribe(Observer<? super Object> observer) {
observer.onSubscribe(Disposables.empty());
push(observer, new Object(), 100);
complete(observer, 101);
}
});
}
};
Observable<List<String>> buffered = source.buffer(openings, closer);
buffered.subscribe(observer);
InOrder inOrder = Mockito.inOrder(observer);
scheduler.advanceTimeTo(500, TimeUnit.MILLISECONDS);
inOrder.verify(observer, Mockito.times(1)).onNext(list("two", "three"));
inOrder.verify(observer, Mockito.times(1)).onNext(list("five"));
inOrder.verify(observer, Mockito.never()).onNext(Mockito.<String>anyList());
inOrder.verify(observer, Mockito.never()).onError(Mockito.any(Throwable.class));
inOrder.verify(observer, Mockito.times(1)).onComplete();
}
@Test
public void testObservableBasedCloser() {
Observable<String> source = Observable.unsafeCreate(new ObservableSource<String>() {
@Override
public void subscribe(Observer<? super String> observer) {
observer.onSubscribe(Disposables.empty());
push(observer, "one", 10);
push(observer, "two", 60);
push(observer, "three", 110);
push(observer, "four", 160);
push(observer, "five", 210);
complete(observer, 250);
}
});
Callable<Observable<Object>> closer = new Callable<Observable<Object>>() {
@Override
public Observable<Object> call() {
return Observable.unsafeCreate(new ObservableSource<Object>() {
@Override
public void subscribe(Observer<? super Object> observer) {
observer.onSubscribe(Disposables.empty());
push(observer, new Object(), 100);
push(observer, new Object(), 200);
push(observer, new Object(), 300);
complete(observer, 301);
}
});
}
};
Observable<List<String>> buffered = source.buffer(closer);
buffered.subscribe(observer);
InOrder inOrder = Mockito.inOrder(observer);
scheduler.advanceTimeTo(500, TimeUnit.MILLISECONDS);
inOrder.verify(observer, Mockito.times(1)).onNext(list("one", "two"));
inOrder.verify(observer, Mockito.times(1)).onNext(list("three", "four"));
inOrder.verify(observer, Mockito.times(1)).onNext(list("five"));
inOrder.verify(observer, Mockito.never()).onNext(Mockito.<String>anyList());
inOrder.verify(observer, Mockito.never()).onError(Mockito.any(Throwable.class));
inOrder.verify(observer, Mockito.times(1)).onComplete();
}
@Test
public void testLongTimeAction() throws InterruptedException {
final CountDownLatch latch = new CountDownLatch(1);
LongTimeAction action = new LongTimeAction(latch);
Observable.just(1).buffer(10, TimeUnit.MILLISECONDS, 10)
.subscribe(action);
latch.await();
assertFalse(action.fail);
}
private static class LongTimeAction implements Consumer<List<Integer>> {
CountDownLatch latch;
boolean fail;
LongTimeAction(CountDownLatch latch) {
this.latch = latch;
}
@Override
public void accept(List<Integer> t1) {
try {
if (fail) {
return;
}
Thread.sleep(200);
} catch (InterruptedException e) {
fail = true;
} finally {
latch.countDown();
}
}
}
private List<String> list(String... args) {
List<String> list = new ArrayList<String>();
for (String arg : args) {
list.add(arg);
}
return list;
}
private <T> void push(final Observer<T> observer, final T value, int delay) {
innerScheduler.schedule(new Runnable() {
@Override
public void run() {
observer.onNext(value);
}
}, delay, TimeUnit.MILLISECONDS);
}
private void complete(final Observer<?> observer, int delay) {
innerScheduler.schedule(new Runnable() {
@Override
public void run() {
observer.onComplete();
}
}, delay, TimeUnit.MILLISECONDS);
}
@Test
public void testBufferStopsWhenUnsubscribed1() {
Observable<Integer> source = Observable.never();
Observer<List<Integer>> o = TestHelper.mockObserver();
TestObserver<List<Integer>> ts = new TestObserver<List<Integer>>(o);
source.buffer(100, 200, TimeUnit.MILLISECONDS, scheduler)
.doOnNext(new Consumer<List<Integer>>() {
@Override
public void accept(List<Integer> pv) {
System.out.println(pv);
}
})
.subscribe(ts);
InOrder inOrder = Mockito.inOrder(o);
scheduler.advanceTimeBy(1001, TimeUnit.MILLISECONDS);
inOrder.verify(o, times(5)).onNext(Arrays.<Integer> asList());
ts.dispose();
scheduler.advanceTimeBy(999, TimeUnit.MILLISECONDS);
inOrder.verifyNoMoreInteractions();
}
@Test
public void bufferWithBONormal1() {
PublishSubject<Integer> source = PublishSubject.create();
PublishSubject<Integer> boundary = PublishSubject.create();
Observer<Object> o = TestHelper.mockObserver();
InOrder inOrder = Mockito.inOrder(o);
source.buffer(boundary).subscribe(o);
source.onNext(1);
source.onNext(2);
source.onNext(3);
boundary.onNext(1);
inOrder.verify(o, times(1)).onNext(Arrays.asList(1, 2, 3));
source.onNext(4);
source.onNext(5);
boundary.onNext(2);
inOrder.verify(o, times(1)).onNext(Arrays.asList(4, 5));
source.onNext(6);
boundary.onComplete();
inOrder.verify(o, times(1)).onNext(Arrays.asList(6));
inOrder.verify(o).onComplete();
verify(o, never()).onError(any(Throwable.class));
}
@Test
public void bufferWithBOEmptyLastViaBoundary() {
PublishSubject<Integer> source = PublishSubject.create();
PublishSubject<Integer> boundary = PublishSubject.create();
Observer<Object> o = TestHelper.mockObserver();
InOrder inOrder = Mockito.inOrder(o);
source.buffer(boundary).subscribe(o);
boundary.onComplete();
inOrder.verify(o, times(1)).onNext(Arrays.asList());
inOrder.verify(o).onComplete();
verify(o, never()).onError(any(Throwable.class));
}
@Test
public void bufferWithBOEmptyLastViaSource() {
PublishSubject<Integer> source = PublishSubject.create();
PublishSubject<Integer> boundary = PublishSubject.create();
Observer<Object> o = TestHelper.mockObserver();
InOrder inOrder = Mockito.inOrder(o);
source.buffer(boundary).subscribe(o);
source.onComplete();
inOrder.verify(o, times(1)).onNext(Arrays.asList());
inOrder.verify(o).onComplete();
verify(o, never()).onError(any(Throwable.class));
}
@Test
public void bufferWithBOEmptyLastViaBoth() {
PublishSubject<Integer> source = PublishSubject.create();
PublishSubject<Integer> boundary = PublishSubject.create();
Observer<Object> o = TestHelper.mockObserver();
InOrder inOrder = Mockito.inOrder(o);
source.buffer(boundary).subscribe(o);
source.onComplete();
boundary.onComplete();
inOrder.verify(o, times(1)).onNext(Arrays.asList());
inOrder.verify(o).onComplete();
verify(o, never()).onError(any(Throwable.class));
}
@Test
public void bufferWithBOSourceThrows() {
PublishSubject<Integer> source = PublishSubject.create();
PublishSubject<Integer> boundary = PublishSubject.create();
Observer<Object> o = TestHelper.mockObserver();
source.buffer(boundary).subscribe(o);
source.onNext(1);
source.onError(new TestException());
verify(o).onError(any(TestException.class));
verify(o, never()).onComplete();
verify(o, never()).onNext(any());
}
@Test
public void bufferWithBOBoundaryThrows() {
PublishSubject<Integer> source = PublishSubject.create();
PublishSubject<Integer> boundary = PublishSubject.create();
Observer<Object> o = TestHelper.mockObserver();
source.buffer(boundary).subscribe(o);
source.onNext(1);
boundary.onError(new TestException());
verify(o).onError(any(TestException.class));
verify(o, never()).onComplete();
verify(o, never()).onNext(any());
}
@Test(timeout = 2000)
public void bufferWithSizeTake1() {
Observable<Integer> source = Observable.just(1).repeat();
Observable<List<Integer>> result = source.buffer(2).take(1);
Observer<Object> o = TestHelper.mockObserver();
result.subscribe(o);
verify(o).onNext(Arrays.asList(1, 1));
verify(o).onComplete();
verify(o, never()).onError(any(Throwable.class));
}
@Test(timeout = 2000)
public void bufferWithSizeSkipTake1() {
Observable<Integer> source = Observable.just(1).repeat();
Observable<List<Integer>> result = source.buffer(2, 3).take(1);
Observer<Object> o = TestHelper.mockObserver();
result.subscribe(o);
verify(o).onNext(Arrays.asList(1, 1));
verify(o).onComplete();
verify(o, never()).onError(any(Throwable.class));
}
@Test(timeout = 2000)
public void bufferWithTimeTake1() {
Observable<Long> source = Observable.interval(40, 40, TimeUnit.MILLISECONDS, scheduler);
Observable<List<Long>> result = source.buffer(100, TimeUnit.MILLISECONDS, scheduler).take(1);
Observer<Object> o = TestHelper.mockObserver();
result.subscribe(o);
scheduler.advanceTimeBy(5, TimeUnit.SECONDS);
verify(o).onNext(Arrays.asList(0L, 1L));
verify(o).onComplete();
verify(o, never()).onError(any(Throwable.class));
}
@Test(timeout = 2000)
public void bufferWithTimeSkipTake2() {
Observable<Long> source = Observable.interval(40, 40, TimeUnit.MILLISECONDS, scheduler);
Observable<List<Long>> result = source.buffer(100, 60, TimeUnit.MILLISECONDS, scheduler).take(2);
Observer<Object> o = TestHelper.mockObserver();
InOrder inOrder = inOrder(o);
result.subscribe(o);
scheduler.advanceTimeBy(5, TimeUnit.SECONDS);
inOrder.verify(o).onNext(Arrays.asList(0L, 1L));
inOrder.verify(o).onNext(Arrays.asList(1L, 2L));
inOrder.verify(o).onComplete();
verify(o, never()).onError(any(Throwable.class));
}
@Test(timeout = 2000)
public void bufferWithBoundaryTake2() {
Observable<Long> boundary = Observable.interval(60, 60, TimeUnit.MILLISECONDS, scheduler);
Observable<Long> source = Observable.interval(40, 40, TimeUnit.MILLISECONDS, scheduler);
Observable<List<Long>> result = source.buffer(boundary).take(2);
Observer<Object> o = TestHelper.mockObserver();
InOrder inOrder = inOrder(o);
result.subscribe(o);
scheduler.advanceTimeBy(5, TimeUnit.SECONDS);
inOrder.verify(o).onNext(Arrays.asList(0L));
inOrder.verify(o).onNext(Arrays.asList(1L));
inOrder.verify(o).onComplete();
verify(o, never()).onError(any(Throwable.class));
}
@Test(timeout = 2000)
public void bufferWithStartEndBoundaryTake2() {
Observable<Long> start = Observable.interval(61, 61, TimeUnit.MILLISECONDS, scheduler);
Function<Long, Observable<Long>> end = new Function<Long, Observable<Long>>() {
@Override
public Observable<Long> apply(Long t1) {
return Observable.interval(100, 100, TimeUnit.MILLISECONDS, scheduler);
}
};
Observable<Long> source = Observable.interval(40, 40, TimeUnit.MILLISECONDS, scheduler);
Observable<List<Long>> result = source.buffer(start, end).take(2);
Observer<Object> o = TestHelper.mockObserver();
InOrder inOrder = inOrder(o);
result
.doOnNext(new Consumer<List<Long>>() {
@Override
public void accept(List<Long> pv) {
System.out.println(pv);
}
})
.subscribe(o);
scheduler.advanceTimeBy(5, TimeUnit.SECONDS);
inOrder.verify(o).onNext(Arrays.asList(1L, 2L, 3L));
inOrder.verify(o).onNext(Arrays.asList(3L, 4L));
inOrder.verify(o).onComplete();
verify(o, never()).onError(any(Throwable.class));
}
@Test
public void bufferWithSizeThrows() {
PublishSubject<Integer> source = PublishSubject.create();
Observable<List<Integer>> result = source.buffer(2);
Observer<Object> o = TestHelper.mockObserver();
InOrder inOrder = inOrder(o);
result.subscribe(o);
source.onNext(1);
source.onNext(2);
source.onNext(3);
source.onError(new TestException());
inOrder.verify(o).onNext(Arrays.asList(1, 2));
inOrder.verify(o).onError(any(TestException.class));
inOrder.verifyNoMoreInteractions();
verify(o, never()).onNext(Arrays.asList(3));
verify(o, never()).onComplete();
}
@Test
public void bufferWithTimeThrows() {
PublishSubject<Integer> source = PublishSubject.create();
Observable<List<Integer>> result = source.buffer(100, TimeUnit.MILLISECONDS, scheduler);
Observer<Object> o = TestHelper.mockObserver();
InOrder inOrder = inOrder(o);
result.subscribe(o);
source.onNext(1);
source.onNext(2);
scheduler.advanceTimeBy(100, TimeUnit.MILLISECONDS);
source.onNext(3);
source.onError(new TestException());
scheduler.advanceTimeBy(100, TimeUnit.MILLISECONDS);
inOrder.verify(o).onNext(Arrays.asList(1, 2));
inOrder.verify(o).onError(any(TestException.class));
inOrder.verifyNoMoreInteractions();
verify(o, never()).onNext(Arrays.asList(3));
verify(o, never()).onComplete();
}
@Test
public void bufferWithTimeAndSize() {
Observable<Long> source = Observable.interval(30, 30, TimeUnit.MILLISECONDS, scheduler);
Observable<List<Long>> result = source.buffer(100, TimeUnit.MILLISECONDS, scheduler, 2).take(3);
Observer<Object> o = TestHelper.mockObserver();
InOrder inOrder = inOrder(o);
result.subscribe(o);
scheduler.advanceTimeBy(5, TimeUnit.SECONDS);
inOrder.verify(o).onNext(Arrays.asList(0L, 1L));
inOrder.verify(o).onNext(Arrays.asList(2L));
inOrder.verify(o).onComplete();
verify(o, never()).onError(any(Throwable.class));
}
@Test
public void bufferWithStartEndStartThrows() {
PublishSubject<Integer> start = PublishSubject.create();
Function<Integer, Observable<Integer>> end = new Function<Integer, Observable<Integer>>() {
@Override
public Observable<Integer> apply(Integer t1) {
return Observable.never();
}
};
PublishSubject<Integer> source = PublishSubject.create();
Observable<List<Integer>> result = source.buffer(start, end);
Observer<Object> o = TestHelper.mockObserver();
result.subscribe(o);
start.onNext(1);
source.onNext(1);
source.onNext(2);
start.onError(new TestException());
verify(o, never()).onNext(any());
verify(o, never()).onComplete();
verify(o).onError(any(TestException.class));
}
@Test
public void bufferWithStartEndEndFunctionThrows() {
PublishSubject<Integer> start = PublishSubject.create();
Function<Integer, Observable<Integer>> end = new Function<Integer, Observable<Integer>>() {
@Override
public Observable<Integer> apply(Integer t1) {
throw new TestException();
}
};
PublishSubject<Integer> source = PublishSubject.create();
Observable<List<Integer>> result = source.buffer(start, end);
Observer<Object> o = TestHelper.mockObserver();
result.subscribe(o);
start.onNext(1);
source.onNext(1);
source.onNext(2);
verify(o, never()).onNext(any());
verify(o, never()).onComplete();
verify(o).onError(any(TestException.class));
}
@Test
public void bufferWithStartEndEndThrows() {
PublishSubject<Integer> start = PublishSubject.create();
Function<Integer, Observable<Integer>> end = new Function<Integer, Observable<Integer>>() {
@Override
public Observable<Integer> apply(Integer t1) {
return Observable.error(new TestException());
}
};
PublishSubject<Integer> source = PublishSubject.create();
Observable<List<Integer>> result = source.buffer(start, end);
Observer<Object> o = TestHelper.mockObserver();
result.subscribe(o);
start.onNext(1);
source.onNext(1);
source.onNext(2);
verify(o, never()).onNext(any());
verify(o, never()).onComplete();
verify(o).onError(any(TestException.class));
}
@Test(timeout = 3000)
public void testBufferWithTimeDoesntUnsubscribeDownstream() throws InterruptedException {
final Observer<Object> o = TestHelper.mockObserver();
final CountDownLatch cdl = new CountDownLatch(1);
DisposableObserver<Object> s = new DisposableObserver<Object>() {
@Override
public void onNext(Object t) {
o.onNext(t);
}
@Override
public void onError(Throwable e) {
o.onError(e);
cdl.countDown();
}
@Override
public void onComplete() {
o.onComplete();
cdl.countDown();
}
};
Observable.range(1, 1).delay(1, TimeUnit.SECONDS).buffer(2, TimeUnit.SECONDS).subscribe(s);
cdl.await();
verify(o).onNext(Arrays.asList(1));
verify(o).onComplete();
verify(o, never()).onError(any(Throwable.class));
assertFalse(s.isDisposed());
}
@SuppressWarnings("unchecked")
@Test
public void bufferTimeSkipDefault() {
Observable.range(1, 5).buffer(1, 1, TimeUnit.MINUTES)
.test()
.assertResult(Arrays.asList(1, 2, 3, 4, 5));
}
@SuppressWarnings("unchecked")
@Test
public void bufferBoundaryHint() {
Observable.range(1, 5).buffer(Observable.timer(1, TimeUnit.MINUTES), 2)
.test()
.assertResult(Arrays.asList(1, 2, 3, 4, 5));
}
static HashSet<Integer> set(Integer... values) {
return new HashSet<Integer>(Arrays.asList(values));
}
@SuppressWarnings("unchecked")
@Test
public void bufferIntoCustomCollection() {
Observable.just(1, 1, 2, 2, 3, 3, 4, 4)
.buffer(3, new Callable<Collection<Integer>>() {
@Override
public Collection<Integer> call() throws Exception {
return new HashSet<Integer>();
}
})
.test()
.assertResult(set(1, 2), set(2, 3), set(4));
}
@SuppressWarnings("unchecked")
@Test
public void bufferSkipIntoCustomCollection() {
Observable.just(1, 1, 2, 2, 3, 3, 4, 4)
.buffer(3, 3, new Callable<Collection<Integer>>() {
@Override
public Collection<Integer> call() throws Exception {
return new HashSet<Integer>();
}
})
.test()
.assertResult(set(1, 2), set(2, 3), set(4));
}
@Test
@SuppressWarnings("unchecked")
public void supplierThrows() {
Observable.just(1)
.buffer(1, TimeUnit.SECONDS, Schedulers.single(), Integer.MAX_VALUE, new Callable<Collection<Integer>>() {
@Override
public Collection<Integer> call() throws Exception {
throw new TestException();
}
}, false)
.test()
.assertFailure(TestException.class);
}
@Test
@SuppressWarnings("unchecked")
public void supplierThrows2() {
Observable.just(1)
.buffer(1, TimeUnit.SECONDS, Schedulers.single(), 10, new Callable<Collection<Integer>>() {
@Override
public Collection<Integer> call() throws Exception {
throw new TestException();
}
}, false)
.test()
.assertFailure(TestException.class);
}
@Test
@SuppressWarnings("unchecked")
public void supplierThrows3() {
Observable.just(1)
.buffer(2, 1, TimeUnit.SECONDS, Schedulers.single(), new Callable<Collection<Integer>>() {
@Override
public Collection<Integer> call() throws Exception {
throw new TestException();
}
})
.test()
.assertFailure(TestException.class);
}
@Test
@SuppressWarnings("unchecked")
public void supplierThrows4() {
Observable.<Integer>never()
.buffer(1, TimeUnit.MILLISECONDS, Schedulers.single(), Integer.MAX_VALUE, new Callable<Collection<Integer>>() {
int count;
@Override
public Collection<Integer> call() throws Exception {
if (count++ == 1) {
throw new TestException();
} else {
return new ArrayList<Integer>();
}
}
}, false)
.test()
.awaitDone(5, TimeUnit.SECONDS)
.assertFailure(TestException.class);
}
@Test
@SuppressWarnings("unchecked")
public void supplierThrows5() {
Observable.<Integer>never()
.buffer(1, TimeUnit.MILLISECONDS, Schedulers.single(), 10, new Callable<Collection<Integer>>() {
int count;
@Override
public Collection<Integer> call() throws Exception {
if (count++ == 1) {
throw new TestException();
} else {
return new ArrayList<Integer>();
}
}
}, false)
.test()
.awaitDone(5, TimeUnit.SECONDS)
.assertFailure(TestException.class);
}
@Test
@SuppressWarnings("unchecked")
public void supplierThrows6() {
Observable.<Integer>never()
.buffer(2, 1, TimeUnit.MILLISECONDS, Schedulers.single(), new Callable<Collection<Integer>>() {
int count;
@Override
public Collection<Integer> call() throws Exception {
if (count++ == 1) {
throw new TestException();
} else {
return new ArrayList<Integer>();
}
}
})
.test()
.awaitDone(5, TimeUnit.SECONDS)
.assertFailure(TestException.class);
}
@Test
@SuppressWarnings("unchecked")
public void supplierReturnsNull() {
Observable.<Integer>never()
.buffer(1, TimeUnit.MILLISECONDS, Schedulers.single(), Integer.MAX_VALUE, new Callable<Collection<Integer>>() {
int count;
@Override
public Collection<Integer> call() throws Exception {
if (count++ == 1) {
return null;
} else {
return new ArrayList<Integer>();
}
}
}, false)
.test()
.awaitDone(5, TimeUnit.SECONDS)
.assertFailure(NullPointerException.class);
}
@Test
@SuppressWarnings("unchecked")
public void supplierReturnsNull2() {
Observable.<Integer>never()
.buffer(1, TimeUnit.MILLISECONDS, Schedulers.single(), 10, new Callable<Collection<Integer>>() {
int count;
@Override
public Collection<Integer> call() throws Exception {
if (count++ == 1) {
return null;
} else {
return new ArrayList<Integer>();
}
}
}, false)
.test()
.awaitDone(5, TimeUnit.SECONDS)
.assertFailure(NullPointerException.class);
}
@Test
@SuppressWarnings("unchecked")
public void supplierReturnsNull3() {
Observable.<Integer>never()
.buffer(2, 1, TimeUnit.MILLISECONDS, Schedulers.single(), new Callable<Collection<Integer>>() {
int count;
@Override
public Collection<Integer> call() throws Exception {
if (count++ == 1) {
return null;
} else {
return new ArrayList<Integer>();
}
}
})
.test()
.awaitDone(5, TimeUnit.SECONDS)
.assertFailure(NullPointerException.class);
}
@Test
@SuppressWarnings("unchecked")
public void boundaryBufferSupplierThrows() {
Observable.never()
.buffer(Functions.justCallable(Observable.never()), new Callable<Collection<Object>>() {
@Override
public Collection<Object> call() throws Exception {
throw new TestException();
}
})
.test()
.assertFailure(TestException.class);
}
@Test
@SuppressWarnings("unchecked")
public void boundaryBoundarySupplierThrows() {
Observable.never()
.buffer(new Callable<ObservableSource<Object>>() {
@Override
public ObservableSource<Object> call() throws Exception {
throw new TestException();
}
}, new Callable<Collection<Object>>() {
@Override
public Collection<Object> call() throws Exception {
return new ArrayList<Object>();
}
})
.test()
.assertFailure(TestException.class);
}
@Test
@SuppressWarnings("unchecked")
public void boundaryBufferSupplierThrows2() {
Observable.never()
.buffer(Functions.justCallable(Observable.timer(1, TimeUnit.MILLISECONDS)), new Callable<Collection<Object>>() {
int count;
@Override
public Collection<Object> call() throws Exception {
if (count++ == 1) {
throw new TestException();
} else {
return new ArrayList<Object>();
}
}
})
.test()
.awaitDone(5, TimeUnit.SECONDS)
.assertFailure(TestException.class);
}
@Test
@SuppressWarnings("unchecked")
public void boundaryBufferSupplierReturnsNull() {
Observable.never()
.buffer(Functions.justCallable(Observable.timer(1, TimeUnit.MILLISECONDS)), new Callable<Collection<Object>>() {
int count;
@Override
public Collection<Object> call() throws Exception {
if (count++ == 1) {
return null;
} else {
return new ArrayList<Object>();
}
}
})
.test()
.awaitDone(5, TimeUnit.SECONDS)
.assertFailure(NullPointerException.class);
}
@Test
@SuppressWarnings("unchecked")
public void boundaryBoundarySupplierThrows2() {
Observable.never()
.buffer(new Callable<ObservableSource<Long>>() {
int count;
@Override
public ObservableSource<Long> call() throws Exception {
if (count++ == 1) {
throw new TestException();
}
return Observable.timer(1, TimeUnit.MILLISECONDS);
}
}, new Callable<Collection<Object>>() {
@Override
public Collection<Object> call() throws Exception {
return new ArrayList<Object>();
}
})
.test()
.awaitDone(5, TimeUnit.SECONDS)
.assertFailure(TestException.class);
}
@Test
public void boundaryCancel() {
PublishSubject<Object> pp = PublishSubject.create();
TestObserver<Collection<Object>> ts = pp
.buffer(Functions.justCallable(Observable.never()), new Callable<Collection<Object>>() {
@Override
public Collection<Object> call() throws Exception {
return new ArrayList<Object>();
}
})
.test();
assertTrue(pp.hasObservers());
ts.dispose();
assertFalse(pp.hasObservers());
}
@Test
@SuppressWarnings("unchecked")
public void boundaryBoundarySupplierReturnsNull() {
Observable.never()
.buffer(new Callable<ObservableSource<Long>>() {
int count;
@Override
public ObservableSource<Long> call() throws Exception {
if (count++ == 1) {
return null;
}
return Observable.timer(1, TimeUnit.MILLISECONDS);
}
}, new Callable<Collection<Object>>() {
@Override
public Collection<Object> call() throws Exception {
return new ArrayList<Object>();
}
})
.test()
.awaitDone(5, TimeUnit.SECONDS)
.assertFailure(NullPointerException.class);
}
@Test
@SuppressWarnings("unchecked")
public void boundaryBoundarySupplierReturnsNull2() {
Observable.never()
.buffer(new Callable<ObservableSource<Long>>() {
int count;
@Override
public ObservableSource<Long> call() throws Exception {
if (count++ == 1) {
return null;
}
return Observable.empty();
}
}, new Callable<Collection<Object>>() {
@Override
public Collection<Object> call() throws Exception {
return new ArrayList<Object>();
}
})
.test()
.awaitDone(5, TimeUnit.SECONDS)
.assertFailure(NullPointerException.class);
}
@SuppressWarnings("unchecked")
@Test
public void boundaryMainError() {
PublishSubject<Object> pp = PublishSubject.create();
TestObserver<Collection<Object>> ts = pp
.buffer(Functions.justCallable(Observable.never()), new Callable<Collection<Object>>() {
@Override
public Collection<Object> call() throws Exception {
return new ArrayList<Object>();
}
})
.test();
pp.onError(new TestException());
ts.assertFailure(TestException.class);
}
@SuppressWarnings("unchecked")
@Test
public void boundaryBoundaryError() {
PublishSubject<Object> pp = PublishSubject.create();
TestObserver<Collection<Object>> ts = pp
.buffer(Functions.justCallable(Observable.error(new TestException())), new Callable<Collection<Object>>() {
@Override
public Collection<Object> call() throws Exception {
return new ArrayList<Object>();
}
})
.test();
pp.onError(new TestException());
ts.assertFailure(TestException.class);
}
@Test
public void dispose() {
TestHelper.checkDisposed(Observable.range(1, 5).buffer(1, TimeUnit.DAYS, Schedulers.single()));
TestHelper.checkDisposed(Observable.range(1, 5).buffer(2, 1, TimeUnit.DAYS, Schedulers.single()));
TestHelper.checkDisposed(Observable.range(1, 5).buffer(1, 2, TimeUnit.DAYS, Schedulers.single()));
TestHelper.checkDisposed(Observable.range(1, 5)
.buffer(1, TimeUnit.DAYS, Schedulers.single(), 2, Functions.<Integer>createArrayList(16), true));
TestHelper.checkDisposed(Observable.range(1, 5).buffer(1));
TestHelper.checkDisposed(Observable.range(1, 5).buffer(2, 1));
TestHelper.checkDisposed(Observable.range(1, 5).buffer(1, 2));
TestHelper.checkDisposed(PublishSubject.create().buffer(Observable.never()));
TestHelper.checkDisposed(PublishSubject.create().buffer(Functions.justCallable(Observable.never())));
TestHelper.checkDisposed(PublishSubject.create().buffer(Observable.never(), Functions.justFunction(Observable.never())));
}
@SuppressWarnings("unchecked")
@Test
public void restartTimer() {
Observable.range(1, 5)
.buffer(1, TimeUnit.DAYS, Schedulers.single(), 2, Functions.<Integer>createArrayList(16), true)
.test()
.assertResult(Arrays.asList(1, 2), Arrays.asList(3, 4), Arrays.asList(5));
}
@SuppressWarnings("unchecked")
@Test
public void bufferSupplierCrash2() {
Observable.range(1, 2)
.buffer(1, new Callable<List<Integer>>() {
int calls;
@Override
public List<Integer> call() throws Exception {
if (++calls == 2) {
throw new TestException();
}
return new ArrayList<Integer>();
}
})
.test()
.assertFailure(TestException.class, Arrays.asList(1));
}
@SuppressWarnings("unchecked")
@Test
public void bufferSkipSupplierCrash2() {
Observable.range(1, 2)
.buffer(2, 1, new Callable<List<Integer>>() {
int calls;
@Override
public List<Integer> call() throws Exception {
if (++calls == 2) {
throw new TestException();
}
return new ArrayList<Integer>();
}
})
.test()
.assertFailure(TestException.class);
}
@SuppressWarnings("unchecked")
@Test
public void bufferSkipError() {
Observable.<Integer>error(new TestException())
.buffer(2, 1)
.test()
.assertFailure(TestException.class);
}
@SuppressWarnings("unchecked")
@Test
public void bufferSkipOverlap() {
Observable.range(1, 5)
.buffer(5, 1)
.test()
.assertResult(
Arrays.asList(1, 2, 3, 4, 5),
Arrays.asList(2, 3, 4, 5),
Arrays.asList(3, 4, 5),
Arrays.asList(4, 5),
Arrays.asList(5)
);
}
@SuppressWarnings("unchecked")
@Test
public void bufferTimedExactError() {
Observable.error(new TestException())
.buffer(1, TimeUnit.DAYS)
.test()
.assertFailure(TestException.class);
}
@SuppressWarnings("unchecked")
@Test
public void bufferTimedSkipError() {
Observable.error(new TestException())
.buffer(1, 2, TimeUnit.DAYS)
.test()
.assertFailure(TestException.class);
}
@SuppressWarnings("unchecked")
@Test
public void bufferTimedOverlapError() {
Observable.error(new TestException())
.buffer(2, 1, TimeUnit.DAYS)
.test()
.assertFailure(TestException.class);
}
@SuppressWarnings("unchecked")
@Test
public void bufferTimedExactEmpty() {
Observable.empty()
.buffer(1, TimeUnit.DAYS)
.test()
.assertResult(Collections.emptyList());
}
@SuppressWarnings("unchecked")
@Test
public void bufferTimedSkipEmpty() {
Observable.empty()
.buffer(1, 2, TimeUnit.DAYS)
.test()
.assertResult(Collections.emptyList());
}
@SuppressWarnings("unchecked")
@Test
public void bufferTimedOverlapEmpty() {
Observable.empty()
.buffer(2, 1, TimeUnit.DAYS)
.test()
.assertResult(Collections.emptyList());
}
@SuppressWarnings("unchecked")
@Test
public void bufferTimedExactSupplierCrash() {
TestScheduler scheduler = new TestScheduler();
PublishSubject<Integer> ps = PublishSubject.create();
TestObserver<List<Integer>> to = ps
.buffer(1, TimeUnit.MILLISECONDS, scheduler, 1, new Callable<List<Integer>>() {
int calls;
@Override
public List<Integer> call() throws Exception {
if (++calls == 2) {
throw new TestException();
}
return new ArrayList<Integer>();
}
}, true)
.test();
ps.onNext(1);
scheduler.advanceTimeBy(1, TimeUnit.MILLISECONDS);
ps.onNext(2);
to
.assertFailure(TestException.class, Arrays.asList(1));
}
@SuppressWarnings("unchecked")
@Test
public void bufferTimedExactBoundedError() {
TestScheduler scheduler = new TestScheduler();
PublishSubject<Integer> ps = PublishSubject.create();
TestObserver<List<Integer>> to = ps
.buffer(1, TimeUnit.MILLISECONDS, scheduler, 1, Functions.<Integer>createArrayList(16), true)
.test();
ps.onError(new TestException());
to
.assertFailure(TestException.class);
}
}