/**
* 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.assertEquals;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.*;
import java.util.*;
import java.util.concurrent.atomic.AtomicInteger;
import org.junit.*;
import org.mockito.InOrder;
import org.reactivestreams.Subscriber;
import io.reactivex.*;
import io.reactivex.exceptions.TestException;
import io.reactivex.functions.*;
import io.reactivex.internal.subscriptions.BooleanSubscription;
import io.reactivex.internal.util.CrashingIterable;
import io.reactivex.plugins.RxJavaPlugins;
import io.reactivex.processors.PublishProcessor;
public class FlowableZipIterableTest {
BiFunction<String, String, String> concat2Strings;
PublishProcessor<String> s1;
PublishProcessor<String> s2;
Flowable<String> zipped;
Subscriber<String> observer;
InOrder inOrder;
@Before
public void setUp() {
concat2Strings = new BiFunction<String, String, String>() {
@Override
public String apply(String t1, String t2) {
return t1 + "-" + t2;
}
};
s1 = PublishProcessor.create();
s2 = PublishProcessor.create();
zipped = Flowable.zip(s1, s2, concat2Strings);
observer = TestHelper.mockSubscriber();
inOrder = inOrder(observer);
zipped.subscribe(observer);
}
BiFunction<Object, Object, String> zipr2 = new BiFunction<Object, Object, String>() {
@Override
public String apply(Object t1, Object t2) {
return "" + t1 + t2;
}
};
Function3<Object, Object, Object, String> zipr3 = new Function3<Object, Object, Object, String>() {
@Override
public String apply(Object t1, Object t2, Object t3) {
return "" + t1 + t2 + t3;
}
};
@Test
public void testZipIterableSameSize() {
PublishProcessor<String> r1 = PublishProcessor.create();
/* define a Subscriber to receive aggregated events */
Subscriber<String> o = TestHelper.mockSubscriber();
InOrder io = inOrder(o);
Iterable<String> r2 = Arrays.asList("1", "2", "3");
r1.zipWith(r2, zipr2).subscribe(o);
r1.onNext("one-");
r1.onNext("two-");
r1.onNext("three-");
r1.onComplete();
io.verify(o).onNext("one-1");
io.verify(o).onNext("two-2");
io.verify(o).onNext("three-3");
io.verify(o).onComplete();
verify(o, never()).onError(any(Throwable.class));
}
@Test
public void testZipIterableEmptyFirstSize() {
PublishProcessor<String> r1 = PublishProcessor.create();
/* define a Subscriber to receive aggregated events */
Subscriber<String> o = TestHelper.mockSubscriber();
InOrder io = inOrder(o);
Iterable<String> r2 = Arrays.asList("1", "2", "3");
r1.zipWith(r2, zipr2).subscribe(o);
r1.onComplete();
io.verify(o).onComplete();
verify(o, never()).onNext(any(String.class));
verify(o, never()).onError(any(Throwable.class));
}
@Test
public void testZipIterableEmptySecond() {
PublishProcessor<String> r1 = PublishProcessor.create();
/* define a Subscriber to receive aggregated events */
Subscriber<String> o = TestHelper.mockSubscriber();
InOrder io = inOrder(o);
Iterable<String> r2 = Arrays.asList();
r1.zipWith(r2, zipr2).subscribe(o);
r1.onNext("one-");
r1.onNext("two-");
r1.onNext("three-");
r1.onComplete();
io.verify(o).onComplete();
verify(o, never()).onNext(any(String.class));
verify(o, never()).onError(any(Throwable.class));
}
@Test
public void testZipIterableFirstShorter() {
PublishProcessor<String> r1 = PublishProcessor.create();
/* define a Subscriber to receive aggregated events */
Subscriber<String> o = TestHelper.mockSubscriber();
InOrder io = inOrder(o);
Iterable<String> r2 = Arrays.asList("1", "2", "3");
r1.zipWith(r2, zipr2).subscribe(o);
r1.onNext("one-");
r1.onNext("two-");
r1.onComplete();
io.verify(o).onNext("one-1");
io.verify(o).onNext("two-2");
io.verify(o).onComplete();
verify(o, never()).onError(any(Throwable.class));
}
@Test
public void testZipIterableSecondShorter() {
PublishProcessor<String> r1 = PublishProcessor.create();
/* define a Subscriber to receive aggregated events */
Subscriber<String> o = TestHelper.mockSubscriber();
InOrder io = inOrder(o);
Iterable<String> r2 = Arrays.asList("1", "2");
r1.zipWith(r2, zipr2).subscribe(o);
r1.onNext("one-");
r1.onNext("two-");
r1.onNext("three-");
r1.onComplete();
io.verify(o).onNext("one-1");
io.verify(o).onNext("two-2");
io.verify(o).onComplete();
verify(o, never()).onError(any(Throwable.class));
}
@Test
public void testZipIterableFirstThrows() {
PublishProcessor<String> r1 = PublishProcessor.create();
/* define a Subscriber to receive aggregated events */
Subscriber<String> o = TestHelper.mockSubscriber();
InOrder io = inOrder(o);
Iterable<String> r2 = Arrays.asList("1", "2", "3");
r1.zipWith(r2, zipr2).subscribe(o);
r1.onNext("one-");
r1.onNext("two-");
r1.onError(new TestException());
io.verify(o).onNext("one-1");
io.verify(o).onNext("two-2");
io.verify(o).onError(any(TestException.class));
verify(o, never()).onComplete();
}
@Test
public void testZipIterableIteratorThrows() {
PublishProcessor<String> r1 = PublishProcessor.create();
/* define a Subscriber to receive aggregated events */
Subscriber<String> o = TestHelper.mockSubscriber();
InOrder io = inOrder(o);
Iterable<String> r2 = new Iterable<String>() {
@Override
public Iterator<String> iterator() {
throw new TestException();
}
};
r1.zipWith(r2, zipr2).subscribe(o);
r1.onNext("one-");
r1.onNext("two-");
r1.onError(new TestException());
io.verify(o).onError(any(TestException.class));
verify(o, never()).onComplete();
verify(o, never()).onNext(any(String.class));
}
@Test
public void testZipIterableHasNextThrows() {
PublishProcessor<String> r1 = PublishProcessor.create();
/* define a Subscriber to receive aggregated events */
Subscriber<String> o = TestHelper.mockSubscriber();
InOrder io = inOrder(o);
Iterable<String> r2 = new Iterable<String>() {
@Override
public Iterator<String> iterator() {
return new Iterator<String>() {
int count;
@Override
public boolean hasNext() {
if (count == 0) {
return true;
}
throw new TestException();
}
@Override
public String next() {
count++;
return "1";
}
@Override
public void remove() {
throw new UnsupportedOperationException("Not supported yet.");
}
};
}
};
r1.zipWith(r2, zipr2).subscribe(o);
r1.onNext("one-");
r1.onError(new TestException());
io.verify(o).onNext("one-1");
io.verify(o).onError(any(TestException.class));
verify(o, never()).onComplete();
}
@Test
public void testZipIterableNextThrows() {
PublishProcessor<String> r1 = PublishProcessor.create();
/* define a Subscriber to receive aggregated events */
Subscriber<String> o = TestHelper.mockSubscriber();
InOrder io = inOrder(o);
Iterable<String> r2 = new Iterable<String>() {
@Override
public Iterator<String> iterator() {
return new Iterator<String>() {
@Override
public boolean hasNext() {
return true;
}
@Override
public String next() {
throw new TestException();
}
@Override
public void remove() {
throw new UnsupportedOperationException("Not supported yet.");
}
};
}
};
r1.zipWith(r2, zipr2).subscribe(o);
r1.onError(new TestException());
io.verify(o).onError(any(TestException.class));
verify(o, never()).onNext(any(String.class));
verify(o, never()).onComplete();
}
Consumer<String> printer = new Consumer<String>() {
@Override
public void accept(String pv) {
System.out.println(pv);
}
};
static final class SquareStr implements Function<Integer, String> {
final AtomicInteger counter = new AtomicInteger();
@Override
public String apply(Integer t1) {
counter.incrementAndGet();
System.out.println("Omg I'm calculating so hard: " + t1 + "*" + t1 + "=" + (t1 * t1));
return " " + (t1 * t1);
}
}
@Test
public void testTake2() {
Flowable<Integer> o = Flowable.just(1, 2, 3, 4, 5);
Iterable<String> it = Arrays.asList("a", "b", "c", "d", "e");
SquareStr squareStr = new SquareStr();
o.map(squareStr).zipWith(it, concat2Strings).take(2).subscribe(printer);
assertEquals(2, squareStr.counter.get());
}
@Test
public void dispose() {
TestHelper.checkDisposed(Flowable.just(1).zipWith(Arrays.asList(1), new BiFunction<Integer, Integer, Object>() {
@Override
public Object apply(Integer a, Integer b) throws Exception {
return a + b;
}
}));
}
@Test
public void doubleOnSubscribe() {
TestHelper.checkDoubleOnSubscribeFlowable(new Function<Flowable<Integer>, Flowable<Object>>() {
@Override
public Flowable<Object> apply(Flowable<Integer> o) throws Exception {
return o.zipWith(Arrays.asList(1), new BiFunction<Integer, Integer, Object>() {
@Override
public Object apply(Integer a, Integer b) throws Exception {
return a + b;
}
});
}
});
}
@Test
public void iteratorThrows() {
Flowable.just(1).zipWith(new CrashingIterable(100, 1, 100), new BiFunction<Integer, Integer, Object>() {
@Override
public Object apply(Integer a, Integer b) throws Exception {
return a + b;
}
})
.test()
.assertFailureAndMessage(TestException.class, "hasNext()");
}
@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();
}
}
.zipWith(Arrays.asList(1), new BiFunction<Integer, Integer, Object>() {
@Override
public Object apply(Integer a, Integer b) throws Exception {
return a + b;
}
})
.test()
.assertResult(2);
TestHelper.assertUndeliverable(errors, 0, TestException.class);
} finally {
RxJavaPlugins.reset();
}
}
}