/**
* Copyright 2014 Netflix, Inc.
*
* 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 rx.internal.operators;
import static org.junit.Assert.assertEquals;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicReference;
import org.junit.Test;
import rx.Observable;
import rx.Observable.OnSubscribe;
import rx.Subscriber;
import rx.functions.Action0;
public class OperatorDoOnSubscribeTest {
@Test
public void testDoOnSubscribe() throws Exception {
final AtomicInteger count = new AtomicInteger();
Observable<Integer> o = Observable.just(1).doOnSubscribe(new Action0() {
@Override
public void call() {
count.incrementAndGet();
}
});
o.subscribe();
o.subscribe();
o.subscribe();
assertEquals(3, count.get());
}
@Test
public void testDoOnSubscribe2() throws Exception {
final AtomicInteger count = new AtomicInteger();
Observable<Integer> o = Observable.just(1).doOnSubscribe(new Action0() {
@Override
public void call() {
count.incrementAndGet();
}
}).take(1).doOnSubscribe(new Action0() {
@Override
public void call() {
count.incrementAndGet();
}
});
o.subscribe();
assertEquals(2, count.get());
}
@Test
public void testDoOnUnSubscribeWorksWithRefCount() throws Exception {
final AtomicInteger onSubscribed = new AtomicInteger();
final AtomicInteger countBefore = new AtomicInteger();
final AtomicInteger countAfter = new AtomicInteger();
final AtomicReference<Subscriber<? super Integer>> sref = new AtomicReference<Subscriber<? super Integer>>();
Observable<Integer> o = Observable.create(new OnSubscribe<Integer>() {
@Override
public void call(Subscriber<? super Integer> s) {
onSubscribed.incrementAndGet();
sref.set(s);
}
}).doOnSubscribe(new Action0() {
@Override
public void call() {
countBefore.incrementAndGet();
}
}).publish().refCount().doOnSubscribe(new Action0() {
@Override
public void call() {
countAfter.incrementAndGet();
}
});
o.subscribe();
o.subscribe();
o.subscribe();
assertEquals(1, countBefore.get());
assertEquals(1, onSubscribed.get());
assertEquals(3, countAfter.get());
sref.get().onCompleted();
o.subscribe();
o.subscribe();
o.subscribe();
assertEquals(2, countBefore.get());
assertEquals(2, onSubscribed.get());
assertEquals(6, countAfter.get());
}
}