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TimeoutTests.java
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/**
* Copyright 2013 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;
import static org.mockito.Matchers.*;
import static org.mockito.Mockito.*;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import org.junit.Before;
import org.junit.Test;
import org.mockito.MockitoAnnotations;
import rx.concurrency.TestScheduler;
import rx.subjects.PublishSubject;
public class TimeoutTests {
private PublishSubject<String> underlyingSubject;
private TestScheduler testScheduler;
private Observable<String> withTimeout;
private static final long TIMEOUT = 3;
private static final TimeUnit TIME_UNIT = TimeUnit.SECONDS;
@Before
public void setUp() {
MockitoAnnotations.initMocks(this);
underlyingSubject = PublishSubject.create();
testScheduler = new TestScheduler();
withTimeout = underlyingSubject.timeout(TIMEOUT, TIME_UNIT, testScheduler);
}
@Test
public void shouldNotTimeoutIfOnNextWithinTimeout() {
Observer<String> observer = mock(Observer.class);
Subscription subscription = withTimeout.subscribe(observer);
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
underlyingSubject.onNext("One");
verify(observer).onNext("One");
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
verify(observer, never()).onError(any(Throwable.class));
subscription.unsubscribe();
}
@Test
public void shouldNotTimeoutIfSecondOnNextWithinTimeout() {
Observer<String> observer = mock(Observer.class);
Subscription subscription = withTimeout.subscribe(observer);
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
underlyingSubject.onNext("One");
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
underlyingSubject.onNext("Two");
verify(observer).onNext("Two");
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
verify(observer, never()).onError(any(Throwable.class));
subscription.unsubscribe();
}
@Test
public void shouldTimeoutIfOnNextNotWithinTimeout() {
Observer<String> observer = mock(Observer.class);
Subscription subscription = withTimeout.subscribe(observer);
testScheduler.advanceTimeBy(TIMEOUT + 1, TimeUnit.SECONDS);
verify(observer).onError(any(TimeoutException.class));
subscription.unsubscribe();
}
@Test
public void shouldTimeoutIfSecondOnNextNotWithinTimeout() {
Observer<String> observer = mock(Observer.class);
Subscription subscription = withTimeout.subscribe(observer);
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
underlyingSubject.onNext("One");
verify(observer).onNext("One");
testScheduler.advanceTimeBy(TIMEOUT + 1, TimeUnit.SECONDS);
verify(observer).onError(any(TimeoutException.class));
subscription.unsubscribe();
}
@Test
public void shouldCompleteIfUnderlyingComletes() {
Observer<String> observer = mock(Observer.class);
Subscription subscription = withTimeout.subscribe(observer);
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
underlyingSubject.onCompleted();
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
verify(observer).onCompleted();
verify(observer, never()).onError(any(Throwable.class));
subscription.unsubscribe();
}
@Test
public void shouldErrorIfUnderlyingErrors() {
Observer<String> observer = mock(Observer.class);
Subscription subscription = withTimeout.subscribe(observer);
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
underlyingSubject.onError(new UnsupportedOperationException());
testScheduler.advanceTimeBy(2, TimeUnit.SECONDS);
verify(observer).onError(any(UnsupportedOperationException.class));
subscription.unsubscribe();
}
}