/**
* 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.*;
import static org.mockito.Mockito.*;
import java.util.Arrays;
import java.util.concurrent.TimeUnit;
import org.junit.Test;
import rx.*;
import rx.functions.Func1;
import rx.internal.util.UtilityFunctions;
public class OperatorAnyTest {
@Test
public void testAnyWithTwoItems() {
Observable<Integer> w = Observable.just(1, 2);
Observable<Boolean> observable = w.exists(UtilityFunctions.alwaysTrue());
@SuppressWarnings("unchecked")
Observer<Boolean> observer = mock(Observer.class);
observable.subscribe(observer);
verify(observer, never()).onNext(false);
verify(observer, times(1)).onNext(true);
verify(observer, never()).onError(org.mockito.Matchers.any(Throwable.class));
verify(observer, times(1)).onCompleted();
}
@Test
public void testIsEmptyWithTwoItems() {
Observable<Integer> w = Observable.just(1, 2);
Observable<Boolean> observable = w.isEmpty();
@SuppressWarnings("unchecked")
Observer<Boolean> observer = mock(Observer.class);
observable.subscribe(observer);
verify(observer, never()).onNext(true);
verify(observer, times(1)).onNext(false);
verify(observer, never()).onError(org.mockito.Matchers.any(Throwable.class));
verify(observer, times(1)).onCompleted();
}
@Test
public void testAnyWithOneItem() {
Observable<Integer> w = Observable.just(1);
Observable<Boolean> observable = w.exists(UtilityFunctions.alwaysTrue());
@SuppressWarnings("unchecked")
Observer<Boolean> observer = mock(Observer.class);
observable.subscribe(observer);
verify(observer, never()).onNext(false);
verify(observer, times(1)).onNext(true);
verify(observer, never()).onError(org.mockito.Matchers.any(Throwable.class));
verify(observer, times(1)).onCompleted();
}
@Test
public void testIsEmptyWithOneItem() {
Observable<Integer> w = Observable.just(1);
Observable<Boolean> observable = w.isEmpty();
@SuppressWarnings("unchecked")
Observer<Boolean> observer = mock(Observer.class);
observable.subscribe(observer);
verify(observer, never()).onNext(true);
verify(observer, times(1)).onNext(false);
verify(observer, never()).onError(org.mockito.Matchers.any(Throwable.class));
verify(observer, times(1)).onCompleted();
}
@Test
public void testAnyWithEmpty() {
Observable<Integer> w = Observable.empty();
Observable<Boolean> observable = w.exists(UtilityFunctions.alwaysTrue());
@SuppressWarnings("unchecked")
Observer<Boolean> observer = mock(Observer.class);
observable.subscribe(observer);
verify(observer, times(1)).onNext(false);
verify(observer, never()).onNext(true);
verify(observer, never()).onError(org.mockito.Matchers.any(Throwable.class));
verify(observer, times(1)).onCompleted();
}
@Test
public void testIsEmptyWithEmpty() {
Observable<Integer> w = Observable.empty();
Observable<Boolean> observable = w.isEmpty();
@SuppressWarnings("unchecked")
Observer<Boolean> observer = mock(Observer.class);
observable.subscribe(observer);
verify(observer, times(1)).onNext(true);
verify(observer, never()).onNext(false);
verify(observer, never()).onError(org.mockito.Matchers.any(Throwable.class));
verify(observer, times(1)).onCompleted();
}
@Test
public void testAnyWithPredicate1() {
Observable<Integer> w = Observable.just(1, 2, 3);
Observable<Boolean> observable = w.exists(
new Func1<Integer, Boolean>() {
@Override
public Boolean call(Integer t1) {
return t1 < 2;
}
});
@SuppressWarnings("unchecked")
Observer<Boolean> observer = mock(Observer.class);
observable.subscribe(observer);
verify(observer, never()).onNext(false);
verify(observer, times(1)).onNext(true);
verify(observer, never()).onError(org.mockito.Matchers.any(Throwable.class));
verify(observer, times(1)).onCompleted();
}
@Test
public void testExists1() {
Observable<Integer> w = Observable.just(1, 2, 3);
Observable<Boolean> observable = w.exists(
new Func1<Integer, Boolean>() {
@Override
public Boolean call(Integer t1) {
return t1 < 2;
}
});
@SuppressWarnings("unchecked")
Observer<Boolean> observer = mock(Observer.class);
observable.subscribe(observer);
verify(observer, never()).onNext(false);
verify(observer, times(1)).onNext(true);
verify(observer, never()).onError(org.mockito.Matchers.any(Throwable.class));
verify(observer, times(1)).onCompleted();
}
@Test
public void testAnyWithPredicate2() {
Observable<Integer> w = Observable.just(1, 2, 3);
Observable<Boolean> observable = w.exists(
new Func1<Integer, Boolean>() {
@Override
public Boolean call(Integer t1) {
return t1 < 1;
}
});
@SuppressWarnings("unchecked")
Observer<Boolean> observer = mock(Observer.class);
observable.subscribe(observer);
verify(observer, times(1)).onNext(false);
verify(observer, never()).onNext(true);
verify(observer, never()).onError(org.mockito.Matchers.any(Throwable.class));
verify(observer, times(1)).onCompleted();
}
@Test
public void testAnyWithEmptyAndPredicate() {
// If the source is empty, always output false.
Observable<Integer> w = Observable.empty();
Observable<Boolean> observable = w.exists(
new Func1<Integer, Boolean>() {
@Override
public Boolean call(Integer t1) {
return true;
}
});
@SuppressWarnings("unchecked")
Observer<Boolean> observer = mock(Observer.class);
observable.subscribe(observer);
verify(observer, times(1)).onNext(false);
verify(observer, never()).onNext(true);
verify(observer, never()).onError(org.mockito.Matchers.any(Throwable.class));
verify(observer, times(1)).onCompleted();
}
@Test
public void testWithFollowingFirst() {
Observable<Integer> o = Observable.from(Arrays.asList(1, 3, 5, 6));
Observable<Boolean> anyEven = o.exists(new Func1<Integer, Boolean>() {
@Override
public Boolean call(Integer i) {
return i % 2 == 0;
}
});
assertTrue(anyEven.toBlocking().first());
}
@Test(timeout = 5000)
public void testIssue1935NoUnsubscribeDownstream() {
Observable<Integer> source = Observable.just(1).isEmpty()
.flatMap(new Func1<Boolean, Observable<Integer>>() {
@Override
public Observable<Integer> call(Boolean t1) {
return Observable.just(2).delay(500, TimeUnit.MILLISECONDS);
}
});
assertEquals((Object)2, source.toBlocking().first());
}
}