/**
* 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 java.util.*;
import java.util.concurrent.TimeUnit;
import org.junit.Test;
import io.reactivex.Observable;
import io.reactivex.Observer;
import io.reactivex.TestHelper;
import io.reactivex.disposables.*;
import io.reactivex.exceptions.TestException;
import io.reactivex.functions.*;
import io.reactivex.internal.functions.Functions;
import io.reactivex.internal.observers.BlockingFirstObserver;
import io.reactivex.observers.TestObserver;
import io.reactivex.schedulers.Schedulers;
public class ObservableBlockingTest {
@Test
public void blockingFirst() {
assertEquals(1, Observable.range(1, 10)
.subscribeOn(Schedulers.computation()).blockingFirst().intValue());
}
@Test
public void blockingFirstDefault() {
assertEquals(1, Observable.<Integer>empty()
.subscribeOn(Schedulers.computation()).blockingFirst(1).intValue());
}
@Test
public void blockingSubscribeConsumer() {
final List<Integer> list = new ArrayList<Integer>();
Observable.range(1, 5)
.subscribeOn(Schedulers.computation())
.blockingSubscribe(new Consumer<Integer>() {
@Override
public void accept(Integer v) throws Exception {
list.add(v);
}
});
assertEquals(Arrays.asList(1, 2, 3, 4, 5), list);
}
@Test
public void blockingSubscribeConsumerConsumer() {
final List<Object> list = new ArrayList<Object>();
Observable.range(1, 5)
.subscribeOn(Schedulers.computation())
.blockingSubscribe(new Consumer<Integer>() {
@Override
public void accept(Integer v) throws Exception {
list.add(v);
}
}, Functions.emptyConsumer());
assertEquals(Arrays.asList(1, 2, 3, 4, 5), list);
}
@Test
public void blockingSubscribeConsumerConsumerError() {
final List<Object> list = new ArrayList<Object>();
TestException ex = new TestException();
Consumer<Object> cons = new Consumer<Object>() {
@Override
public void accept(Object v) throws Exception {
list.add(v);
}
};
Observable.range(1, 5).concatWith(Observable.<Integer>error(ex))
.subscribeOn(Schedulers.computation())
.blockingSubscribe(cons, cons);
assertEquals(Arrays.asList(1, 2, 3, 4, 5, ex), list);
}
@Test
public void blockingSubscribeConsumerConsumerAction() {
final List<Object> list = new ArrayList<Object>();
Consumer<Object> cons = new Consumer<Object>() {
@Override
public void accept(Object v) throws Exception {
list.add(v);
}
};
Observable.range(1, 5)
.subscribeOn(Schedulers.computation())
.blockingSubscribe(cons, cons, new Action() {
@Override
public void run() throws Exception {
list.add(100);
}
});
assertEquals(Arrays.asList(1, 2, 3, 4, 5, 100), list);
}
@Test
public void blockingSubscribeObserver() {
final List<Object> list = new ArrayList<Object>();
Observable.range(1, 5)
.subscribeOn(Schedulers.computation())
.blockingSubscribe(new Observer<Object>() {
@Override
public void onSubscribe(Disposable d) {
}
@Override
public void onNext(Object value) {
list.add(value);
}
@Override
public void onError(Throwable e) {
list.add(e);
}
@Override
public void onComplete() {
list.add(100);
}
});
assertEquals(Arrays.asList(1, 2, 3, 4, 5, 100), list);
}
@Test
public void blockingSubscribeObserverError() {
final List<Object> list = new ArrayList<Object>();
final TestException ex = new TestException();
Observable.range(1, 5).concatWith(Observable.<Integer>error(ex))
.subscribeOn(Schedulers.computation())
.blockingSubscribe(new Observer<Object>() {
@Override
public void onSubscribe(Disposable d) {
}
@Override
public void onNext(Object value) {
list.add(value);
}
@Override
public void onError(Throwable e) {
list.add(e);
}
@Override
public void onComplete() {
list.add(100);
}
});
assertEquals(Arrays.asList(1, 2, 3, 4, 5, ex), list);
}
@Test(expected = TestException.class)
public void blockingForEachThrows() {
Observable.just(1)
.blockingForEach(new Consumer<Integer>() {
@Override
public void accept(Integer e) throws Exception {
throw new TestException();
}
});
}
@Test(expected = NoSuchElementException.class)
public void blockingFirstEmpty() {
Observable.empty().blockingFirst();
}
@Test(expected = NoSuchElementException.class)
public void blockingLastEmpty() {
Observable.empty().blockingLast();
}
@Test
public void blockingFirstNormal() {
assertEquals(1, Observable.just(1, 2).blockingFirst(3).intValue());
}
@Test
public void blockingLastNormal() {
assertEquals(2, Observable.just(1, 2).blockingLast(3).intValue());
}
@Test(expected = NoSuchElementException.class)
public void blockingSingleEmpty() {
Observable.empty().blockingSingle();
}
@Test
public void utilityClass() {
TestHelper.checkUtilityClass(ObservableBlockingSubscribe.class);
}
@Test
public void disposeUpFront() {
TestObserver<Object> to = new TestObserver<Object>();
to.dispose();
Observable.just(1).blockingSubscribe(to);
to.assertEmpty();
}
@SuppressWarnings("rawtypes")
@Test
public void delayed() throws Exception {
final TestObserver<Object> to = new TestObserver<Object>();
final Observer[] s = { null };
Schedulers.single().scheduleDirect(new Runnable() {
@SuppressWarnings("unchecked")
@Override
public void run() {
to.dispose();
s[0].onNext(1);
}
}, 200, TimeUnit.MILLISECONDS);
new Observable<Integer>() {
@Override
protected void subscribeActual(Observer<? super Integer> observer) {
observer.onSubscribe(Disposables.empty());
s[0] = observer;
}
}.blockingSubscribe(to);
while (!to.isDisposed()) {
Thread.sleep(100);
}
to.assertEmpty();
}
@Test
public void interrupt() {
TestObserver<Object> to = new TestObserver<Object>();
Thread.currentThread().interrupt();
Observable.never().blockingSubscribe(to);
}
@Test
public void onCompleteDelayed() {
TestObserver<Object> to = new TestObserver<Object>();
Observable.empty().delay(100, TimeUnit.MILLISECONDS)
.blockingSubscribe(to);
to.assertResult();
}
@Test
public void blockingCancelUpfront() {
BlockingFirstObserver<Integer> o = new BlockingFirstObserver<Integer>();
assertFalse(o.isDisposed());
o.dispose();
assertTrue(o.isDisposed());
Disposable d = Disposables.empty();
o.onSubscribe(d);
assertTrue(d.isDisposed());
Thread.currentThread().interrupt();
try {
o.blockingGet();
fail("Should have thrown");
} catch (RuntimeException ex) {
assertTrue(ex.toString(), ex.getCause() instanceof InterruptedException);
}
Thread.interrupted();
o.onError(new TestException());
try {
o.blockingGet();
fail("Should have thrown");
} catch (TestException ex) {
// expected
}
}
}