@Test
public void testRefCount() {
TestScheduler s = new TestScheduler();
Observable<Long> interval =
Observable.interval(100, TimeUnit.MILLISECONDS, s).publish().refCount();
// subscribe list1
final List<Long> list1 = new ArrayList<Long>();
Subscription s1 =
interval.subscribe(
new Action1<Long>() {
@Override
public void call(Long t1) {
list1.add(t1);
}
});
s.advanceTimeBy(200, TimeUnit.MILLISECONDS);
assertEquals(2, list1.size());
assertEquals(0L, list1.get(0).longValue());
assertEquals(1L, list1.get(1).longValue());
// subscribe list2
final List<Long> list2 = new ArrayList<Long>();
Subscription s2 =
interval.subscribe(
new Action1<Long>() {
@Override
public void call(Long t1) {
list2.add(t1);
}
});
s.advanceTimeBy(300, TimeUnit.MILLISECONDS);
// list 1 should have 5 items
assertEquals(5, list1.size());
assertEquals(2L, list1.get(2).longValue());
assertEquals(3L, list1.get(3).longValue());
assertEquals(4L, list1.get(4).longValue());
// list 2 should only have 3 items
assertEquals(3, list2.size());
assertEquals(2L, list2.get(0).longValue());
assertEquals(3L, list2.get(1).longValue());
assertEquals(4L, list2.get(2).longValue());
// unsubscribe list1
s1.unsubscribe();
// advance further
s.advanceTimeBy(300, TimeUnit.MILLISECONDS);
// list 1 should still have 5 items
assertEquals(5, list1.size());
// list 2 should have 6 items
assertEquals(6, list2.size());
assertEquals(5L, list2.get(3).longValue());
assertEquals(6L, list2.get(4).longValue());
assertEquals(7L, list2.get(5).longValue());
// unsubscribe list2
s2.unsubscribe();
// advance further
s.advanceTimeBy(1000, TimeUnit.MILLISECONDS);
// subscribing a new one should start over because the source should have been unsubscribed
// subscribe list3
final List<Long> list3 = new ArrayList<Long>();
Subscription s3 =
interval.subscribe(
new Action1<Long>() {
@Override
public void call(Long t1) {
list3.add(t1);
}
});
s.advanceTimeBy(200, TimeUnit.MILLISECONDS);
assertEquals(2, list3.size());
assertEquals(0L, list3.get(0).longValue());
assertEquals(1L, list3.get(1).longValue());
}
