/**
* 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 java.util.*;
import java.util.concurrent.TimeUnit;
import org.junit.*;
import rx.*;
import rx.Observable;
import rx.Observer;
import rx.functions.*;
import rx.schedulers.TestScheduler;
public class OperatorWindowWithTimeTest {
private TestScheduler scheduler;
private Scheduler.Worker innerScheduler;
@Before
public void before() {
scheduler = new TestScheduler();
innerScheduler = scheduler.createWorker();
}
@Test
public void testTimedAndCount() {
final List<String> list = new ArrayList<String>();
final List<List<String>> lists = new ArrayList<List<String>>();
Observable<String> source = Observable.create(new Observable.OnSubscribe<String>() {
@Override
public void call(Subscriber<? super String> observer) {
push(observer, "one", 10);
push(observer, "two", 90);
push(observer, "three", 110);
push(observer, "four", 190);
push(observer, "five", 210);
complete(observer, 250);
}
});
Observable<Observable<String>> windowed = source.window(100, TimeUnit.MILLISECONDS, 2, scheduler);
windowed.subscribe(observeWindow(list, lists));
scheduler.advanceTimeTo(100, TimeUnit.MILLISECONDS);
assertEquals(1, lists.size());
assertEquals(lists.get(0), list("one", "two"));
scheduler.advanceTimeTo(200, TimeUnit.MILLISECONDS);
assertEquals(2, lists.size());
assertEquals(lists.get(1), list("three", "four"));
scheduler.advanceTimeTo(300, TimeUnit.MILLISECONDS);
assertEquals(3, lists.size());
assertEquals(lists.get(2), list("five"));
}
@Test
public void testTimed() {
final List<String> list = new ArrayList<String>();
final List<List<String>> lists = new ArrayList<List<String>>();
Observable<String> source = Observable.create(new Observable.OnSubscribe<String>() {
@Override
public void call(Subscriber<? super String> observer) {
push(observer, "one", 98);
push(observer, "two", 99);
push(observer, "three", 100);
push(observer, "four", 101);
push(observer, "five", 102);
complete(observer, 150);
}
});
Observable<Observable<String>> windowed = source.window(100, TimeUnit.MILLISECONDS, scheduler);
windowed.subscribe(observeWindow(list, lists));
scheduler.advanceTimeTo(101, TimeUnit.MILLISECONDS);
assertEquals(1, lists.size());
assertEquals(lists.get(0), list("one", "two", "three"));
scheduler.advanceTimeTo(201, TimeUnit.MILLISECONDS);
assertEquals(2, lists.size());
assertEquals(lists.get(1), list("four", "five"));
}
private List<String> list(String... args) {
List<String> list = new ArrayList<String>();
for (String arg : args) {
list.add(arg);
}
return list;
}
private <T> void push(final Observer<T> observer, final T value, int delay) {
innerScheduler.schedule(new Action0() {
@Override
public void call() {
observer.onNext(value);
}
}, delay, TimeUnit.MILLISECONDS);
}
private void complete(final Observer<?> observer, int delay) {
innerScheduler.schedule(new Action0() {
@Override
public void call() {
observer.onCompleted();
}
}, delay, TimeUnit.MILLISECONDS);
}
private <T> Action1<Observable<T>> observeWindow(final List<T> list, final List<List<T>> lists) {
return new Action1<Observable<T>>() {
@Override
public void call(Observable<T> stringObservable) {
stringObservable.subscribe(new Observer<T>() {
@Override
public void onCompleted() {
lists.add(new ArrayList<T>(list));
list.clear();
}
@Override
public void onError(Throwable e) {
fail(e.getMessage());
}
@Override
public void onNext(T args) {
list.add(args);
}
});
}
};
}
@Test
public void testExactWindowSize() {
Observable<Observable<Integer>> source = Observable.range(1, 10).window(1, TimeUnit.MINUTES, 3, scheduler);
final List<Integer> list = new ArrayList<Integer>();
final List<List<Integer>> lists = new ArrayList<List<Integer>>();
source.subscribe(observeWindow(list, lists));
assertEquals(4, lists.size());
assertEquals(3, lists.get(0).size());
assertEquals(Arrays.asList(1, 2, 3), lists.get(0));
assertEquals(3, lists.get(1).size());
assertEquals(Arrays.asList(4, 5, 6), lists.get(1));
assertEquals(3, lists.get(2).size());
assertEquals(Arrays.asList(7, 8, 9), lists.get(2));
assertEquals(1, lists.get(3).size());
assertEquals(Arrays.asList(10), lists.get(3));
}
}