/**
* 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.parallel;
import java.util.List;
import org.junit.Test;
import org.reactivestreams.Subscriber;
import io.reactivex.*;
import io.reactivex.exceptions.*;
import io.reactivex.functions.Function;
import io.reactivex.internal.subscriptions.BooleanSubscription;
import io.reactivex.subscribers.TestSubscriber;
public class ParallelJoinTest {
@Test
public void overflowFastpath() {
new ParallelFlowable<Integer>() {
@Override
public void subscribe(Subscriber<? super Integer>[] subscribers) {
subscribers[0].onSubscribe(new BooleanSubscription());
subscribers[0].onNext(1);
subscribers[0].onNext(2);
subscribers[0].onNext(3);
}
@Override
public int parallelism() {
return 1;
}
}
.sequential(1)
.test(0)
.assertFailure(MissingBackpressureException.class);
}
@Test
public void overflowSlowpath() {
@SuppressWarnings("unchecked")
final Subscriber<? super Integer>[] subs = new Subscriber[1];
TestSubscriber<Integer> ts = new TestSubscriber<Integer>(1) {
@Override
public void onNext(Integer t) {
super.onNext(t);
subs[0].onNext(2);
subs[0].onNext(3);
}
};
new ParallelFlowable<Integer>() {
@Override
public void subscribe(Subscriber<? super Integer>[] subscribers) {
subs[0] = subscribers[0];
subscribers[0].onSubscribe(new BooleanSubscription());
subscribers[0].onNext(1);
}
@Override
public int parallelism() {
return 1;
}
}
.sequential(1)
.subscribe(ts);
ts.assertFailure(MissingBackpressureException.class, 1);
}
@Test
public void emptyBackpressured() {
Flowable.empty()
.parallel()
.sequential()
.test(0)
.assertResult();
}
@Test
public void overflowFastpathDelayError() {
new ParallelFlowable<Integer>() {
@Override
public void subscribe(Subscriber<? super Integer>[] subscribers) {
subscribers[0].onSubscribe(new BooleanSubscription());
subscribers[0].onNext(1);
subscribers[0].onNext(2);
}
@Override
public int parallelism() {
return 1;
}
}
.sequentialDelayError(1)
.test(0)
.requestMore(1)
.assertFailure(MissingBackpressureException.class, 1);
}
@Test
public void overflowSlowpathDelayError() {
@SuppressWarnings("unchecked")
final Subscriber<? super Integer>[] subs = new Subscriber[1];
TestSubscriber<Integer> ts = new TestSubscriber<Integer>(1) {
@Override
public void onNext(Integer t) {
super.onNext(t);
if (t == 1) {
subs[0].onNext(2);
subs[0].onNext(3);
}
}
};
new ParallelFlowable<Integer>() {
@Override
public void subscribe(Subscriber<? super Integer>[] subscribers) {
subs[0] = subscribers[0];
subscribers[0].onSubscribe(new BooleanSubscription());
subscribers[0].onNext(1);
}
@Override
public int parallelism() {
return 1;
}
}
.sequentialDelayError(1)
.subscribe(ts);
ts.request(1);
ts.assertFailure(MissingBackpressureException.class, 1, 2);
}
@Test
public void emptyBackpressuredDelayError() {
Flowable.empty()
.parallel()
.sequentialDelayError()
.test(0)
.assertResult();
}
@Test
public void delayError() {
TestSubscriber<Integer> flow = Flowable.range(1, 2)
.parallel(2)
.map(new Function<Integer, Integer>() {
@Override
public Integer apply(Integer v) throws Exception {
throw new TestException();
}
})
.sequentialDelayError()
.test()
.assertFailure(CompositeException.class);
List<Throwable> error = TestHelper.errorList(flow);
TestHelper.assertError(error, 0, TestException.class);
TestHelper.assertError(error, 1, TestException.class);
}
@Test
public void normalDelayError() {
Flowable.just(1)
.parallel(1)
.sequentialDelayError(1)
.test()
.assertResult(1);
}
@Test
public void rangeDelayError() {
Flowable.range(1, 2)
.parallel(1)
.sequentialDelayError(1)
.take(1)
.test()
.assertResult(1);
}
@Test
public void rangeDelayErrorBackpressure() {
Flowable.range(1, 3)
.parallel(1)
.sequentialDelayError(1)
.take(2)
.rebatchRequests(1)
.test()
.assertResult(1, 2);
}
@Test
public void rangeDelayErrorBackpressure2() {
Flowable.range(1, 3)
.parallel(1)
.sequentialDelayError(1)
.rebatchRequests(1)
.test()
.assertResult(1, 2, 3);
}
@Test
public void delayErrorCancelBackpressured() {
TestSubscriber<Integer> ts = Flowable.range(1, 3)
.parallel(1)
.sequentialDelayError(1)
.test(0);
ts
.cancel();
ts.assertEmpty();
}
@Test
public void delayErrorCancelBackpressured2() {
TestSubscriber<Integer> ts = Flowable.<Integer>empty()
.parallel(1)
.sequentialDelayError(1)
.test(0);
ts.assertResult();
}
@Test
public void consumerCancelsAfterOne() {
TestSubscriber<Integer> ts = new TestSubscriber<Integer>(1) {
@Override
public void onNext(Integer t) {
super.onNext(t);
cancel();
onComplete();
}
};
Flowable.range(1, 3)
.parallel(1)
.sequential()
.subscribe(ts);
ts.assertResult(1);
}
@Test
public void delayErrorConsumerCancelsAfterOne() {
TestSubscriber<Integer> ts = new TestSubscriber<Integer>(1) {
@Override
public void onNext(Integer t) {
super.onNext(t);
cancel();
onComplete();
}
};
Flowable.range(1, 3)
.parallel(1)
.sequentialDelayError()
.subscribe(ts);
ts.assertResult(1);
}
@Test
public void delayErrorDrainTrigger() {
Flowable.range(1, 3)
.parallel(1)
.sequentialDelayError()
.test(0)
.requestMore(1)
.assertValues(1)
.requestMore(1)
.assertValues(1, 2)
.requestMore(1)
.assertResult(1, 2, 3);
}
@Test
public void failedRailIsIgnored() {
Flowable.range(1, 4)
.parallel(2)
.map(new Function<Integer, Integer>() {
@Override
public Integer apply(Integer v) throws Exception {
if (v == 1) {
throw new TestException();
}
return v;
}
})
.sequentialDelayError()
.test()
.assertFailure(TestException.class, 2, 3, 4);
}
@Test
public void failedRailIsIgnoredHidden() {
Flowable.range(1, 4).hide()
.parallel(2)
.map(new Function<Integer, Integer>() {
@Override
public Integer apply(Integer v) throws Exception {
if (v == 1) {
throw new TestException();
}
return v;
}
})
.sequentialDelayError()
.test()
.assertFailure(TestException.class, 2, 3, 4);
}
}