Examples with Signal reactor.core.publisher.Signal used on opensource projects

Example 1 with Signal

use of reactor.core.publisher.Signal in project reactor-core by reactor.

the class FluxTests method endLessTimer.

/**
 * This test case demonstrates a silent failure of {@link Flux#interval(Duration)}
 * when a resolution is specified that
 * is less than the backing {@link Timer} class.
 *
 * @throws InterruptedException - on failure.
 * @throws TimeoutException     - on failure. <p> by @masterav10 : https://github.com/reactor/reactor/issues/469
 */
@Test
@Ignore
public void endLessTimer() throws InterruptedException, TimeoutException {
    int tasks = 50;
    // XXX: Fails when less than 100
    long delayMS = 50;
    Phaser barrier = new Phaser(tasks + 1);
    List<Long> times = new ArrayList<>();
    // long localTime = System.currentTimeMillis(); for java 7
    long localTime = Instant.now().toEpochMilli();
    long elapsed = System.nanoTime();
    Disposable ctrl = Flux.interval(Duration.ofMillis(delayMS)).log("test").map((signal) -> {
        return TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - elapsed);
    }).doOnNext((elapsedMillis) -> {
        times.add(localTime + elapsedMillis);
        barrier.arrive();
    }).subscribe();
    barrier.awaitAdvanceInterruptibly(barrier.arrive(), tasks * delayMS + 1000, TimeUnit.MILLISECONDS);
    ctrl.dispose();
    Assert.assertEquals(tasks, times.size());
    for (int i = 1; i < times.size(); i++) {
        Long prev = times.get(i - 1);
        Long time = times.get(i);
        Assert.assertTrue(prev > 0);
        Assert.assertTrue(time > 0);
        Assert.assertTrue("was " + (time - prev), time - prev <= delayMS * 1.2);
    }
}