@Test
public void testEmitWindow() throws Exception {
TestCollector<StreamWindow<Integer>> collector = new TestCollector<StreamWindow<Integer>>();
List<StreamWindow<Integer>> collected = collector.getCollected();
WindowBuffer<Integer> wb =
new JumpingTimePreReducer<Integer>(
reducer,
serializer,
3,
2,
new TimestampWrapper<Integer>(
new Timestamp<Integer>() {
private static final long serialVersionUID = 1L;
@Override
public long getTimestamp(Integer value) {
return value;
}
},
1));
wb.store(1);
wb.store(2);
wb.store(3);
wb.evict(1);
wb.emitWindow(collector);
assertEquals(1, collected.size());
assertEquals(StreamWindow.fromElements(5), collected.get(0));
wb.store(4);
wb.store(5);
// Nothing should happen here
wb.evict(2);
wb.store(6);
wb.emitWindow(collector);
wb.evict(2);
wb.emitWindow(collector);
wb.store(12);
wb.emitWindow(collector);
assertEquals(3, collected.size());
assertEquals(StreamWindow.fromElements(11), collected.get(1));
assertEquals(StreamWindow.fromElements(12), collected.get(2));
}
