/**
* 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.mockito.ArgumentMatchers.isA;
import static org.mockito.Mockito.*;
import java.util.List;
import java.util.concurrent.TimeUnit;
import org.junit.*;
import org.mockito.InOrder;
import org.reactivestreams.Subscriber;
import io.reactivex.*;
import io.reactivex.exceptions.*;
import io.reactivex.functions.*;
import io.reactivex.internal.subscriptions.BooleanSubscription;
import io.reactivex.observers.TestObserver;
import io.reactivex.plugins.RxJavaPlugins;
import io.reactivex.processors.PublishProcessor;
import io.reactivex.schedulers.Schedulers;
import io.reactivex.subscribers.TestSubscriber;
public class FlowableSequenceEqualTest {
@Test
public void test1Flowable() {
Flowable<Boolean> observable = Flowable.sequenceEqual(
Flowable.just("one", "two", "three"),
Flowable.just("one", "two", "three")).toFlowable();
verifyResult(observable, true);
}
@Test
public void test2Flowable() {
Flowable<Boolean> observable = Flowable.sequenceEqual(
Flowable.just("one", "two", "three"),
Flowable.just("one", "two", "three", "four")).toFlowable();
verifyResult(observable, false);
}
@Test
public void test3Flowable() {
Flowable<Boolean> observable = Flowable.sequenceEqual(
Flowable.just("one", "two", "three", "four"),
Flowable.just("one", "two", "three")).toFlowable();
verifyResult(observable, false);
}
@Test
public void testWithError1Flowable() {
Flowable<Boolean> observable = Flowable.sequenceEqual(
Flowable.concat(Flowable.just("one"),
Flowable.<String> error(new TestException())),
Flowable.just("one", "two", "three")).toFlowable();
verifyError(observable);
}
@Test
public void testWithError2Flowable() {
Flowable<Boolean> observable = Flowable.sequenceEqual(
Flowable.just("one", "two", "three"),
Flowable.concat(Flowable.just("one"),
Flowable.<String> error(new TestException()))).toFlowable();
verifyError(observable);
}
@Test
public void testWithError3Flowable() {
Flowable<Boolean> observable = Flowable.sequenceEqual(
Flowable.concat(Flowable.just("one"),
Flowable.<String> error(new TestException())),
Flowable.concat(Flowable.just("one"),
Flowable.<String> error(new TestException()))).toFlowable();
verifyError(observable);
}
@Test
public void testWithEmpty1Flowable() {
Flowable<Boolean> observable = Flowable.sequenceEqual(
Flowable.<String> empty(),
Flowable.just("one", "two", "three")).toFlowable();
verifyResult(observable, false);
}
@Test
public void testWithEmpty2Flowable() {
Flowable<Boolean> observable = Flowable.sequenceEqual(
Flowable.just("one", "two", "three"),
Flowable.<String> empty()).toFlowable();
verifyResult(observable, false);
}
@Test
public void testWithEmpty3Flowable() {
Flowable<Boolean> observable = Flowable.sequenceEqual(
Flowable.<String> empty(), Flowable.<String> empty()).toFlowable();
verifyResult(observable, true);
}
@Test
@Ignore("Null values not allowed")
public void testWithNull1Flowable() {
Flowable<Boolean> observable = Flowable.sequenceEqual(
Flowable.just((String) null), Flowable.just("one")).toFlowable();
verifyResult(observable, false);
}
@Test
@Ignore("Null values not allowed")
public void testWithNull2Flowable() {
Flowable<Boolean> observable = Flowable.sequenceEqual(
Flowable.just((String) null), Flowable.just((String) null)).toFlowable();
verifyResult(observable, true);
}
@Test
public void testWithEqualityErrorFlowable() {
Flowable<Boolean> observable = Flowable.sequenceEqual(
Flowable.just("one"), Flowable.just("one"),
new BiPredicate<String, String>() {
@Override
public boolean test(String t1, String t2) {
throw new TestException();
}
}).toFlowable();
verifyError(observable);
}
@Test
public void test1() {
Single<Boolean> observable = Flowable.sequenceEqual(
Flowable.just("one", "two", "three"),
Flowable.just("one", "two", "three"));
verifyResult(observable, true);
}
@Test
public void test2() {
Single<Boolean> observable = Flowable.sequenceEqual(
Flowable.just("one", "two", "three"),
Flowable.just("one", "two", "three", "four"));
verifyResult(observable, false);
}
@Test
public void test3() {
Single<Boolean> observable = Flowable.sequenceEqual(
Flowable.just("one", "two", "three", "four"),
Flowable.just("one", "two", "three"));
verifyResult(observable, false);
}
@Test
public void testWithError1() {
Single<Boolean> observable = Flowable.sequenceEqual(
Flowable.concat(Flowable.just("one"),
Flowable.<String> error(new TestException())),
Flowable.just("one", "two", "three"));
verifyError(observable);
}
@Test
public void testWithError2() {
Single<Boolean> observable = Flowable.sequenceEqual(
Flowable.just("one", "two", "three"),
Flowable.concat(Flowable.just("one"),
Flowable.<String> error(new TestException())));
verifyError(observable);
}
@Test
public void testWithError3() {
Single<Boolean> observable = Flowable.sequenceEqual(
Flowable.concat(Flowable.just("one"),
Flowable.<String> error(new TestException())),
Flowable.concat(Flowable.just("one"),
Flowable.<String> error(new TestException())));
verifyError(observable);
}
@Test
public void testWithEmpty1() {
Single<Boolean> observable = Flowable.sequenceEqual(
Flowable.<String> empty(),
Flowable.just("one", "two", "three"));
verifyResult(observable, false);
}
@Test
public void testWithEmpty2() {
Single<Boolean> observable = Flowable.sequenceEqual(
Flowable.just("one", "two", "three"),
Flowable.<String> empty());
verifyResult(observable, false);
}
@Test
public void testWithEmpty3() {
Single<Boolean> observable = Flowable.sequenceEqual(
Flowable.<String> empty(), Flowable.<String> empty());
verifyResult(observable, true);
}
@Test
@Ignore("Null values not allowed")
public void testWithNull1() {
Single<Boolean> observable = Flowable.sequenceEqual(
Flowable.just((String) null), Flowable.just("one"));
verifyResult(observable, false);
}
@Test
@Ignore("Null values not allowed")
public void testWithNull2() {
Single<Boolean> observable = Flowable.sequenceEqual(
Flowable.just((String) null), Flowable.just((String) null));
verifyResult(observable, true);
}
@Test
public void testWithEqualityError() {
Single<Boolean> observable = Flowable.sequenceEqual(
Flowable.just("one"), Flowable.just("one"),
new BiPredicate<String, String>() {
@Override
public boolean test(String t1, String t2) {
throw new TestException();
}
});
verifyError(observable);
}
private void verifyResult(Flowable<Boolean> observable, boolean result) {
Subscriber<Boolean> observer = TestHelper.mockSubscriber();
observable.subscribe(observer);
InOrder inOrder = inOrder(observer);
inOrder.verify(observer, times(1)).onNext(result);
inOrder.verify(observer).onComplete();
inOrder.verifyNoMoreInteractions();
}
private void verifyResult(Single<Boolean> observable, boolean result) {
SingleObserver<Boolean> observer = TestHelper.mockSingleObserver();
observable.subscribe(observer);
InOrder inOrder = inOrder(observer);
inOrder.verify(observer, times(1)).onSuccess(result);
inOrder.verifyNoMoreInteractions();
}
private void verifyError(Flowable<Boolean> observable) {
Subscriber<Boolean> observer = TestHelper.mockSubscriber();
observable.subscribe(observer);
InOrder inOrder = inOrder(observer);
inOrder.verify(observer, times(1)).onError(isA(TestException.class));
inOrder.verifyNoMoreInteractions();
}
private void verifyError(Single<Boolean> observable) {
SingleObserver<Boolean> observer = TestHelper.mockSingleObserver();
observable.subscribe(observer);
InOrder inOrder = inOrder(observer);
inOrder.verify(observer, times(1)).onError(isA(TestException.class));
inOrder.verifyNoMoreInteractions();
}
@Test
public void prefetch() {
Flowable.sequenceEqual(Flowable.range(1, 20), Flowable.range(1, 20), 2)
.test()
.assertResult(true);
}
@Test
public void disposed() {
TestHelper.checkDisposed(Flowable.sequenceEqual(Flowable.just(1), Flowable.just(2)));
}
@Test
public void simpleInequal() {
Flowable.sequenceEqual(Flowable.just(1), Flowable.just(2))
.test()
.assertResult(false);
}
@Test
public void simpleInequalObservable() {
Flowable.sequenceEqual(Flowable.just(1), Flowable.just(2))
.toFlowable()
.test()
.assertResult(false);
}
@Test
public void onNextCancelRace() {
for (int i = 0; i < 500; i++) {
final PublishProcessor<Integer> ps = PublishProcessor.create();
final TestObserver<Boolean> to = Flowable.sequenceEqual(Flowable.never(), ps).test();
Runnable r1 = new Runnable() {
@Override
public void run() {
to.cancel();
}
};
Runnable r2 = new Runnable() {
@Override
public void run() {
ps.onNext(1);
}
};
TestHelper.race(r1, r2);
to.assertEmpty();
}
}
@Test
public void onNextCancelRaceObservable() {
for (int i = 0; i < 500; i++) {
final PublishProcessor<Integer> ps = PublishProcessor.create();
final TestSubscriber<Boolean> to = Flowable.sequenceEqual(Flowable.never(), ps).toFlowable().test();
Runnable r1 = new Runnable() {
@Override
public void run() {
to.cancel();
}
};
Runnable r2 = new Runnable() {
@Override
public void run() {
ps.onNext(1);
}
};
TestHelper.race(r1, r2);
to.assertEmpty();
}
}
@Test
public void disposedFlowable() {
TestHelper.checkDisposed(Flowable.sequenceEqual(Flowable.just(1), Flowable.just(2)).toFlowable());
}
@Test
public void prefetchFlowable() {
Flowable.sequenceEqual(Flowable.range(1, 20), Flowable.range(1, 20), 2)
.toFlowable()
.test()
.assertResult(true);
}
@Test
public void longSequenceEqualsFlowable() {
Flowable<Integer> source = Flowable.range(1, Flowable.bufferSize() * 4).subscribeOn(Schedulers.computation());
Flowable.sequenceEqual(source, source)
.toFlowable()
.test()
.awaitDone(5, TimeUnit.SECONDS)
.assertResult(true);
}
@Test
public void syncFusedCrashFlowable() {
Flowable<Integer> source = Flowable.range(1, 10).map(new Function<Integer, Integer>() {
@Override
public Integer apply(Integer v) throws Exception { throw new TestException(); }
});
Flowable.sequenceEqual(source, Flowable.range(1, 10).hide())
.toFlowable()
.test()
.assertFailure(TestException.class);
Flowable.sequenceEqual(Flowable.range(1, 10).hide(), source)
.toFlowable()
.test()
.assertFailure(TestException.class);
}
@Test
public void cancelAndDrainRaceFlowable() {
Flowable<Object> neverNever = new Flowable<Object>() {
@Override
protected void subscribeActual(Subscriber<? super Object> s) {
}
};
for (int i = 0; i < 500; i++) {
final TestSubscriber<Boolean> ts = new TestSubscriber<Boolean>();
final PublishProcessor<Integer> pp = PublishProcessor.create();
boolean swap = (i & 1) == 0;
Flowable.sequenceEqual(swap ? pp : neverNever, swap ? neverNever : pp)
.toFlowable()
.subscribe(ts);
Runnable r1 = new Runnable() {
@Override
public void run() {
pp.onNext(1);
}
};
Runnable r2 = new Runnable() {
@Override
public void run() {
ts.cancel();
}
};
TestHelper.race(r1, r2);
ts.assertEmpty();
}
}
@Test
public void sourceOverflowsFlowable() {
Flowable.sequenceEqual(Flowable.never(), new Flowable<Object>() {
@Override
protected void subscribeActual(Subscriber<? super Object> s) {
s.onSubscribe(new BooleanSubscription());
for (int i = 0; i < 10; i++) {
s.onNext(i);
}
}
}, 8)
.toFlowable()
.test()
.assertFailure(MissingBackpressureException.class);
}
@Test
public void doubleErrorFlowable() {
List<Throwable> errors = TestHelper.trackPluginErrors();
try {
Flowable.sequenceEqual(Flowable.never(), new Flowable<Object>() {
@Override
protected void subscribeActual(Subscriber<? super Object> s) {
s.onSubscribe(new BooleanSubscription());
s.onError(new TestException("First"));
s.onError(new TestException("Second"));
}
}, 8)
.toFlowable()
.test()
.assertFailureAndMessage(TestException.class, "First");
TestHelper.assertUndeliverable(errors, 0, TestException.class, "Second");
} finally {
RxJavaPlugins.reset();
}
}
@Test
public void longSequenceEquals() {
Flowable<Integer> source = Flowable.range(1, Flowable.bufferSize() * 4).subscribeOn(Schedulers.computation());
Flowable.sequenceEqual(source, source)
.test()
.awaitDone(5, TimeUnit.SECONDS)
.assertResult(true);
}
@Test
public void syncFusedCrash() {
Flowable<Integer> source = Flowable.range(1, 10).map(new Function<Integer, Integer>() {
@Override
public Integer apply(Integer v) throws Exception { throw new TestException(); }
});
Flowable.sequenceEqual(source, Flowable.range(1, 10).hide())
.test()
.assertFailure(TestException.class);
Flowable.sequenceEqual(Flowable.range(1, 10).hide(), source)
.test()
.assertFailure(TestException.class);
}
@Test
public void cancelAndDrainRace() {
Flowable<Object> neverNever = new Flowable<Object>() {
@Override
protected void subscribeActual(Subscriber<? super Object> s) {
}
};
for (int i = 0; i < 500; i++) {
final TestObserver<Boolean> ts = new TestObserver<Boolean>();
final PublishProcessor<Integer> pp = PublishProcessor.create();
boolean swap = (i & 1) == 0;
Flowable.sequenceEqual(swap ? pp : neverNever, swap ? neverNever : pp)
.subscribe(ts);
Runnable r1 = new Runnable() {
@Override
public void run() {
pp.onNext(1);
}
};
Runnable r2 = new Runnable() {
@Override
public void run() {
ts.cancel();
}
};
TestHelper.race(r1, r2);
ts.assertEmpty();
}
}
@Test
public void sourceOverflows() {
Flowable.sequenceEqual(Flowable.never(), new Flowable<Object>() {
@Override
protected void subscribeActual(Subscriber<? super Object> s) {
s.onSubscribe(new BooleanSubscription());
for (int i = 0; i < 10; i++) {
s.onNext(i);
}
}
}, 8)
.test()
.assertFailure(MissingBackpressureException.class);
}
@Test
public void doubleError() {
List<Throwable> errors = TestHelper.trackPluginErrors();
try {
Flowable.sequenceEqual(Flowable.never(), new Flowable<Object>() {
@Override
protected void subscribeActual(Subscriber<? super Object> s) {
s.onSubscribe(new BooleanSubscription());
s.onError(new TestException("First"));
s.onError(new TestException("Second"));
}
}, 8)
.test()
.assertFailureAndMessage(TestException.class, "First");
TestHelper.assertUndeliverable(errors, 0, TestException.class, "Second");
} finally {
RxJavaPlugins.reset();
}
}
}