@Test
@Ignore
public void shouldZipTwoInfiniteSequences() throws Exception {
final LazyFutureStream<Integer> units = LazyFutureStream.iterate(1, n -> n + 1);
final LazyFutureStream<Integer> hundreds = LazyFutureStream.iterate(100, n -> n + 100);
final Seq<String> zipped = units.zip(hundreds, (n, p) -> n + ": " + p);
assertThat(
zipped.limit(5).join(),
equalTo(LazyFutureStream.of("1: 100", "2: 200", "3: 300", "4: 400", "5: 500").join()));
}
@Test
public void lazyCollection() {
Collection<Integer> col =
LazyFutureStream.of(1, 2, 3, 4, 5, 6).map(i -> i + 2).toLazyCollection();
assertThat(col.size(), equalTo(6));
}
@Test
public void copy() {
LazyFutureStream.of(1, 2, 3, 4, 5, 6)
.map(i -> i + 2)
.copy(5)
.forEach(s -> System.out.println(s.toList()));
}
@Test
public void shouldZipInfiniteWithFiniteSeq() throws Exception {
ThreadPools.setUseCommon(false);
final LazyFutureStream<Integer> units =
LazyFutureStream.iterate(
1,
n ->
n
+ 1); // <-- MEMORY LEAK!- no auto-closing yet, so writes infinetely to it's
// async queue
final Seq<Integer> hundreds = LazyFutureStream.iterate(100, n -> n + 100).limit(5);
final Seq<String> zipped = units.zip(hundreds, (n, p) -> n + ": " + p);
assertThat(
zipped.limit(5).join(),
equalTo(LazyFutureStream.of("1: 100", "2: 200", "3: 300", "4: 400", "5: 500").join()));
ThreadPools.setUseCommon(true);
}
@Override
public Publisher<Long> createPublisher(long elements) {
return LazyFutureStream.iterate(0l, i -> i + 1l).sync().limit(elements);
}