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SerializedSubjectTest.java
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SerializedSubjectTest.java
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/**
* Copyright 2015 David Karnok and 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 hu.akarnokd.rxjava2.subjects;
import static org.junit.Assert.*;
import org.junit.Test;
import hu.akarnokd.rxjava2.exceptions.TestException;
import hu.akarnokd.rxjava2.subscribers.TestSubscriber;
public class SerializedSubjectTest {
@Test
public void testBasic() {
SerializedSubject<String, String> subject = new SerializedSubject<String, String>(PublishSubject.<String> create());
TestSubscriber<String> ts = new TestSubscriber<String>();
subject.subscribe(ts);
subject.onNext("hello");
subject.onComplete();
ts.awaitTerminalEvent();
ts.assertValue("hello");
}
@Test
public void testAsyncSubjectValueRelay() {
AsyncSubject<Integer> async = AsyncSubject.create();
async.onNext(1);
async.onComplete();
Subject<Integer, Integer> serial = async.toSerialized();
assertFalse(serial.hasSubscribers());
assertTrue(serial.hasComplete());
assertFalse(serial.hasThrowable());
assertNull(serial.getThrowable());
assertEquals((Integer)1, serial.getValue());
assertTrue(serial.hasValue());
assertArrayEquals(new Object[] { 1 }, serial.getValues());
assertArrayEquals(new Integer[] { 1 }, serial.getValues(new Integer[0]));
assertArrayEquals(new Integer[] { 1 }, serial.getValues(new Integer[] { 0 }));
assertArrayEquals(new Integer[] { 1, null }, serial.getValues(new Integer[] { 0, 0 }));
}
@Test
public void testAsyncSubjectValueEmpty() {
AsyncSubject<Integer> async = AsyncSubject.create();
async.onComplete();
Subject<Integer, Integer> serial = async.toSerialized();
assertFalse(serial.hasSubscribers());
assertTrue(serial.hasComplete());
assertFalse(serial.hasThrowable());
assertNull(serial.getThrowable());
assertNull(serial.getValue());
assertFalse(serial.hasValue());
assertArrayEquals(new Object[] { }, serial.getValues());
assertArrayEquals(new Integer[] { }, serial.getValues(new Integer[0]));
assertArrayEquals(new Integer[] { null }, serial.getValues(new Integer[] { 0 }));
assertArrayEquals(new Integer[] { null, 0 }, serial.getValues(new Integer[] { 0, 0 }));
}
@Test
public void testAsyncSubjectValueError() {
AsyncSubject<Integer> async = AsyncSubject.create();
TestException te = new TestException();
async.onError(te);
Subject<Integer, Integer> serial = async.toSerialized();
assertFalse(serial.hasSubscribers());
assertFalse(serial.hasComplete());
assertTrue(serial.hasThrowable());
assertSame(te, serial.getThrowable());
assertNull(serial.getValue());
assertFalse(serial.hasValue());
assertArrayEquals(new Object[] { }, serial.getValues());
assertArrayEquals(new Integer[] { }, serial.getValues(new Integer[0]));
assertArrayEquals(new Integer[] { null }, serial.getValues(new Integer[] { 0 }));
assertArrayEquals(new Integer[] { null, 0 }, serial.getValues(new Integer[] { 0, 0 }));
}
@Test
public void testPublishSubjectValueRelay() {
PublishSubject<Integer> async = PublishSubject.create();
async.onNext(1);
async.onComplete();
Subject<Integer, Integer> serial = async.toSerialized();
assertFalse(serial.hasSubscribers());
assertTrue(serial.hasComplete());
assertFalse(serial.hasThrowable());
assertNull(serial.getThrowable());
assertNull(serial.getValue());
assertFalse(serial.hasValue());
assertArrayEquals(new Object[0], serial.getValues());
assertArrayEquals(new Integer[0], serial.getValues(new Integer[0]));
assertArrayEquals(new Integer[] { null }, serial.getValues(new Integer[] { 0 }));
assertArrayEquals(new Integer[] { null, 0 }, serial.getValues(new Integer[] { 0, 0 }));
}
@Test
public void testPublishSubjectValueEmpty() {
PublishSubject<Integer> async = PublishSubject.create();
async.onComplete();
Subject<Integer, Integer> serial = async.toSerialized();
assertFalse(serial.hasSubscribers());
assertTrue(serial.hasComplete());
assertFalse(serial.hasThrowable());
assertNull(serial.getThrowable());
assertNull(serial.getValue());
assertFalse(serial.hasValue());
assertArrayEquals(new Object[] { }, serial.getValues());
assertArrayEquals(new Integer[] { }, serial.getValues(new Integer[0]));
assertArrayEquals(new Integer[] { null }, serial.getValues(new Integer[] { 0 }));
assertArrayEquals(new Integer[] { null, 0 }, serial.getValues(new Integer[] { 0, 0 }));
}
@Test
public void testPublishSubjectValueError() {
PublishSubject<Integer> async = PublishSubject.create();
TestException te = new TestException();
async.onError(te);
Subject<Integer, Integer> serial = async.toSerialized();
assertFalse(serial.hasSubscribers());
assertFalse(serial.hasComplete());
assertTrue(serial.hasThrowable());
assertSame(te, serial.getThrowable());
assertNull(serial.getValue());
assertFalse(serial.hasValue());
assertArrayEquals(new Object[] { }, serial.getValues());
assertArrayEquals(new Integer[] { }, serial.getValues(new Integer[0]));
assertArrayEquals(new Integer[] { null }, serial.getValues(new Integer[] { 0 }));
assertArrayEquals(new Integer[] { null, 0 }, serial.getValues(new Integer[] { 0, 0 }));
}
@Test
public void testBehaviorSubjectValueRelay() {
BehaviorSubject<Integer> async = BehaviorSubject.create();
async.onNext(1);
async.onComplete();
Subject<Integer, Integer> serial = async.toSerialized();
assertFalse(serial.hasSubscribers());
assertTrue(serial.hasComplete());
assertFalse(serial.hasThrowable());
assertNull(serial.getThrowable());
assertNull(serial.getValue());
assertFalse(serial.hasValue());
assertArrayEquals(new Object[] { }, serial.getValues());
assertArrayEquals(new Integer[] { }, serial.getValues(new Integer[0]));
assertArrayEquals(new Integer[] { null }, serial.getValues(new Integer[] { 0 }));
assertArrayEquals(new Integer[] { null, 0 }, serial.getValues(new Integer[] { 0, 0 }));
}
@Test
public void testBehaviorSubjectValueRelayIncomplete() {
BehaviorSubject<Integer> async = BehaviorSubject.create();
async.onNext(1);
Subject<Integer, Integer> serial = async.toSerialized();
assertFalse(serial.hasSubscribers());
assertFalse(serial.hasComplete());
assertFalse(serial.hasThrowable());
assertNull(serial.getThrowable());
assertEquals((Integer)1, serial.getValue());
assertTrue(serial.hasValue());
assertArrayEquals(new Object[] { 1 }, serial.getValues());
assertArrayEquals(new Integer[] { 1 }, serial.getValues(new Integer[0]));
assertArrayEquals(new Integer[] { 1 }, serial.getValues(new Integer[] { 0 }));
assertArrayEquals(new Integer[] { 1, null }, serial.getValues(new Integer[] { 0, 0 }));
}
@Test
public void testBehaviorSubjectIncompleteEmpty() {
BehaviorSubject<Integer> async = BehaviorSubject.create();
Subject<Integer, Integer> serial = async.toSerialized();
assertFalse(serial.hasSubscribers());
assertFalse(serial.hasComplete());
assertFalse(serial.hasThrowable());
assertNull(serial.getThrowable());
assertNull(serial.getValue());
assertFalse(serial.hasValue());
assertArrayEquals(new Object[] { }, serial.getValues());
assertArrayEquals(new Integer[] { }, serial.getValues(new Integer[0]));
assertArrayEquals(new Integer[] { null }, serial.getValues(new Integer[] { 0 }));
assertArrayEquals(new Integer[] { null, 0 }, serial.getValues(new Integer[] { 0, 0 }));
}
@Test
public void testBehaviorSubjectEmpty() {
BehaviorSubject<Integer> async = BehaviorSubject.create();
async.onComplete();
Subject<Integer, Integer> serial = async.toSerialized();
assertFalse(serial.hasSubscribers());
assertTrue(serial.hasComplete());
assertFalse(serial.hasThrowable());
assertNull(serial.getThrowable());
assertNull(serial.getValue());
assertFalse(serial.hasValue());
assertArrayEquals(new Object[] { }, serial.getValues());
assertArrayEquals(new Integer[] { }, serial.getValues(new Integer[0]));
assertArrayEquals(new Integer[] { null }, serial.getValues(new Integer[] { 0 }));
assertArrayEquals(new Integer[] { null, 0 }, serial.getValues(new Integer[] { 0, 0 }));
}
@Test
public void testBehaviorSubjectError() {
BehaviorSubject<Integer> async = BehaviorSubject.create();
TestException te = new TestException();
async.onError(te);
Subject<Integer, Integer> serial = async.toSerialized();
assertFalse(serial.hasSubscribers());
assertFalse(serial.hasComplete());
assertTrue(serial.hasThrowable());
assertSame(te, serial.getThrowable());
assertNull(serial.getValue());
assertFalse(serial.hasValue());
assertArrayEquals(new Object[] { }, serial.getValues());
assertArrayEquals(new Integer[] { }, serial.getValues(new Integer[0]));
assertArrayEquals(new Integer[] { null }, serial.getValues(new Integer[] { 0 }));
assertArrayEquals(new Integer[] { null, 0 }, serial.getValues(new Integer[] { 0, 0 }));
}
@Test
public void testReplaySubjectValueRelay() {
ReplaySubject<Integer> async = ReplaySubject.create();
async.onNext(1);
async.onComplete();
Subject<Integer, Integer> serial = async.toSerialized();
assertFalse(serial.hasSubscribers());
assertTrue(serial.hasComplete());
assertFalse(serial.hasThrowable());
assertNull(serial.getThrowable());
assertEquals((Integer)1, serial.getValue());
assertTrue(serial.hasValue());
assertArrayEquals(new Object[] { 1 }, serial.getValues());
assertArrayEquals(new Integer[] { 1 }, serial.getValues(new Integer[0]));
assertArrayEquals(new Integer[] { 1 }, serial.getValues(new Integer[] { 0 }));
assertArrayEquals(new Integer[] { 1, null }, serial.getValues(new Integer[] { 0, 0 }));
}
@Test
public void testReplaySubjectValueRelayIncomplete() {
ReplaySubject<Integer> async = ReplaySubject.create();
async.onNext(1);
Subject<Integer, Integer> serial = async.toSerialized();
assertFalse(serial.hasSubscribers());
assertFalse(serial.hasComplete());
assertFalse(serial.hasThrowable());
assertNull(serial.getThrowable());
assertEquals((Integer)1, serial.getValue());
assertTrue(serial.hasValue());
assertArrayEquals(new Object[] { 1 }, serial.getValues());
assertArrayEquals(new Integer[] { 1 }, serial.getValues(new Integer[0]));
assertArrayEquals(new Integer[] { 1 }, serial.getValues(new Integer[] { 0 }));
assertArrayEquals(new Integer[] { 1, null }, serial.getValues(new Integer[] { 0, 0 }));
}
@Test
public void testReplaySubjectValueRelayBounded() {
ReplaySubject<Integer> async = ReplaySubject.createWithSize(1);
async.onNext(0);
async.onNext(1);
async.onComplete();
Subject<Integer, Integer> serial = async.toSerialized();
assertFalse(serial.hasSubscribers());
assertTrue(serial.hasComplete());
assertFalse(serial.hasThrowable());
assertNull(serial.getThrowable());
assertEquals((Integer)1, serial.getValue());
assertTrue(serial.hasValue());
assertArrayEquals(new Object[] { 1 }, serial.getValues());
assertArrayEquals(new Integer[] { 1 }, serial.getValues(new Integer[0]));
assertArrayEquals(new Integer[] { 1 }, serial.getValues(new Integer[] { 0 }));
assertArrayEquals(new Integer[] { 1, null }, serial.getValues(new Integer[] { 0, 0 }));
}
@Test
public void testReplaySubjectValueRelayBoundedIncomplete() {
ReplaySubject<Integer> async = ReplaySubject.createWithSize(1);
async.onNext(0);
async.onNext(1);
Subject<Integer, Integer> serial = async.toSerialized();
assertFalse(serial.hasSubscribers());
assertFalse(serial.hasComplete());
assertFalse(serial.hasThrowable());
assertNull(serial.getThrowable());
assertEquals((Integer)1, serial.getValue());
assertTrue(serial.hasValue());
assertArrayEquals(new Object[] { 1 }, serial.getValues());
assertArrayEquals(new Integer[] { 1 }, serial.getValues(new Integer[0]));
assertArrayEquals(new Integer[] { 1 }, serial.getValues(new Integer[] { 0 }));
assertArrayEquals(new Integer[] { 1, null }, serial.getValues(new Integer[] { 0, 0 }));
}
@Test
public void testReplaySubjectValueRelayBoundedEmptyIncomplete() {
ReplaySubject<Integer> async = ReplaySubject.createWithSize(1);
Subject<Integer, Integer> serial = async.toSerialized();
assertFalse(serial.hasSubscribers());
assertFalse(serial.hasComplete());
assertFalse(serial.hasThrowable());
assertNull(serial.getThrowable());
assertNull(serial.getValue());
assertFalse(serial.hasValue());
assertArrayEquals(new Object[] { }, serial.getValues());
assertArrayEquals(new Integer[] { }, serial.getValues(new Integer[0]));
assertArrayEquals(new Integer[] { null }, serial.getValues(new Integer[] { 0 }));
assertArrayEquals(new Integer[] { null, 0 }, serial.getValues(new Integer[] { 0, 0 }));
}
@Test
public void testReplaySubjectValueRelayEmptyIncomplete() {
ReplaySubject<Integer> async = ReplaySubject.create();
Subject<Integer, Integer> serial = async.toSerialized();
assertFalse(serial.hasSubscribers());
assertFalse(serial.hasComplete());
assertFalse(serial.hasThrowable());
assertNull(serial.getThrowable());
assertNull(serial.getValue());
assertFalse(serial.hasValue());
assertArrayEquals(new Object[] { }, serial.getValues());
assertArrayEquals(new Integer[] { }, serial.getValues(new Integer[0]));
assertArrayEquals(new Integer[] { null }, serial.getValues(new Integer[] { 0 }));
assertArrayEquals(new Integer[] { null, 0 }, serial.getValues(new Integer[] { 0, 0 }));
}
@Test
public void testReplaySubjectEmpty() {
ReplaySubject<Integer> async = ReplaySubject.create();
async.onComplete();
Subject<Integer, Integer> serial = async.toSerialized();
assertFalse(serial.hasSubscribers());
assertTrue(serial.hasComplete());
assertFalse(serial.hasThrowable());
assertNull(serial.getThrowable());
assertNull(serial.getValue());
assertFalse(serial.hasValue());
assertArrayEquals(new Object[] { }, serial.getValues());
assertArrayEquals(new Integer[] { }, serial.getValues(new Integer[0]));
assertArrayEquals(new Integer[] { null }, serial.getValues(new Integer[] { 0 }));
assertArrayEquals(new Integer[] { null, 0 }, serial.getValues(new Integer[] { 0, 0 }));
}
@Test
public void testReplaySubjectError() {
ReplaySubject<Integer> async = ReplaySubject.create();
TestException te = new TestException();
async.onError(te);
Subject<Integer, Integer> serial = async.toSerialized();
assertFalse(serial.hasSubscribers());
assertFalse(serial.hasComplete());
assertTrue(serial.hasThrowable());
assertSame(te, serial.getThrowable());
assertNull(serial.getValue());
assertFalse(serial.hasValue());
assertArrayEquals(new Object[] { }, serial.getValues());
assertArrayEquals(new Integer[] { }, serial.getValues(new Integer[0]));
assertArrayEquals(new Integer[] { null }, serial.getValues(new Integer[] { 0 }));
assertArrayEquals(new Integer[] { null, 0 }, serial.getValues(new Integer[] { 0, 0 }));
}
@Test
public void testReplaySubjectBoundedEmpty() {
ReplaySubject<Integer> async = ReplaySubject.createWithSize(1);
async.onComplete();
Subject<Integer, Integer> serial = async.toSerialized();
assertFalse(serial.hasSubscribers());
assertTrue(serial.hasComplete());
assertFalse(serial.hasThrowable());
assertNull(serial.getThrowable());
assertNull(serial.getValue());
assertFalse(serial.hasValue());
assertArrayEquals(new Object[] { }, serial.getValues());
assertArrayEquals(new Integer[] { }, serial.getValues(new Integer[0]));
assertArrayEquals(new Integer[] { null }, serial.getValues(new Integer[] { 0 }));
assertArrayEquals(new Integer[] { null, 0 }, serial.getValues(new Integer[] { 0, 0 }));
}
@Test
public void testReplaySubjectBoundedError() {
ReplaySubject<Integer> async = ReplaySubject.createWithSize(1);
TestException te = new TestException();
async.onError(te);
Subject<Integer, Integer> serial = async.toSerialized();
assertFalse(serial.hasSubscribers());
assertFalse(serial.hasComplete());
assertTrue(serial.hasThrowable());
assertSame(te, serial.getThrowable());
assertNull(serial.getValue());
assertFalse(serial.hasValue());
assertArrayEquals(new Object[] { }, serial.getValues());
assertArrayEquals(new Integer[] { }, serial.getValues(new Integer[0]));
assertArrayEquals(new Integer[] { null }, serial.getValues(new Integer[] { 0 }));
assertArrayEquals(new Integer[] { null, 0 }, serial.getValues(new Integer[] { 0, 0 }));
}
@Test
public void testDontWrapSerializedSubjectAgain() {
PublishSubject<Object> s = PublishSubject.create();
Subject<Object, Object> s1 = s.toSerialized();
Subject<Object, Object> s2 = s1.toSerialized();
assertSame(s1, s2);
}
}