stopwatch.stop();
    ticker.advance(36);
    assertEquals(34, stopwatch.elapsed(NANOSECONDS));
  }

  public void testElapsed_micros() {
    stopwatch.start();
    ticker.advance(999);
    assertEquals(0, stopwatch.elapsed(MICROSECONDS));
    ticker.advance(1);
    assertEquals(1, stopwatch.elapsed(MICROSECONDS));
  }

  public void testElapsed_millis() {
    stopwatch.start();

    stopwatch.stop();
    ticker.advance(36);
    assertEquals(34, stopwatch.elapsed(NANOSECONDS));
  }

  public void testElapsed_micros() {
    stopwatch.start();
    ticker.advance(999);
    assertEquals(0, stopwatch.elapsed(MICROSECONDS));
    ticker.advance(1);
    assertEquals(1, stopwatch.elapsed(MICROSECONDS));
  }

  public void testElapsed_millis() {
    stopwatch.start();

            .expireAfterAccess(1000, TimeUnit.MILLISECONDS)
            .ticker(fakeTicker)
            .build();

    cache.put(0, 10);
    cache.put(2, 30);

    fakeTicker.advance(999, TimeUnit.MILLISECONDS);
    assertEquals(Integer.valueOf(30), cache.getIfPresent(2));
    fakeTicker.advance(1, TimeUnit.MILLISECONDS);
    assertEquals(Integer.valueOf(30), cache.getIfPresent(2));

            .expireAfterAccess(1000, TimeUnit.MILLISECONDS)
            .ticker(fakeTicker)
            .build();

    cache.put(0, 10);
    cache.put(2, 30);

    fakeTicker.advance(999, TimeUnit.MILLISECONDS);
    assertEquals(Integer.valueOf(30), cache.getIfPresent(2));
    fakeTicker.advance(1, TimeUnit.MILLISECONDS);
    assertEquals(Integer.valueOf(30), cache.getIfPresent(2));

    assertThrows(IllegalArgumentException.class, () -> limiter.setRate(-10.0));
  }

  public void testAcquireParameterValidation() {
    RateLimiter limiter = RateLimiter.create(999);
    assertThrows(IllegalArgumentException.class, () -> limiter.acquire(0));
    assertThrows(IllegalArgumentException.class, () -> limiter.acquire(-1));
    assertThrows(IllegalArgumentException.class, () -> limiter.tryAcquire(0));

  }

  public void testNull() throws Exception {
    new NullPointerTester()
        .setDefault(CountDownLatch.class, new CountDownLatch(0))
        .setDefault(Semaphore.class, new Semaphore(999))
        .testAllPublicStaticMethods(Uninterruptibles.class);
  }

  // IncrementableCountDownLatch.await() tests

  // CountDownLatch.await() tests

  // Condition.await() tests

  }

  public void testNull() throws Exception {
    new NullPointerTester()
        .setDefault(CountDownLatch.class, new CountDownLatch(0))
        .setDefault(Semaphore.class, new Semaphore(999))
        .testAllPublicStaticMethods(Uninterruptibles.class);
  }

  // IncrementableCountDownLatch.await() tests

  // CountDownLatch.await() tests

  // Condition.await() tests

   * #megaPrimitiveDoubleStreamPart1()}.
   */
  static DoubleStream megaPrimitiveDoubleStreamPart2() {
    return DoubleStream.iterate(999_999.0, x -> x - 2.0).limit(MEGA_STREAM_COUNT / 2).parallel();
  }

  static final long MEGA_STREAM_COUNT = isAndroid() ? 100 : 1_000_000;
  static final double MEGA_STREAM_MIN = 0.0;

    assertThrows(IllegalArgumentException.class, () -> limiter.setRate(-10.0));
  }

  public void testAcquireParameterValidation() {
    RateLimiter limiter = RateLimiter.create(999);
    assertThrows(IllegalArgumentException.class, () -> limiter.acquire(0));
    assertThrows(IllegalArgumentException.class, () -> limiter.acquire(-1));
    assertThrows(IllegalArgumentException.class, () -> limiter.tryAcquire(0));

    runIterator(Lists.newArrayList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10), 5);
  }

  public void testRemoveAt() {
    long seed = new Random().nextLong();
    Random random = new Random(seed);
    int heapSize = 999;
    int numberOfModifications = reduceIterationsIfGwt(500);
    MinMaxPriorityQueue<Integer> mmHeap =
        rawtypeToWildcard(MinMaxPriorityQueue.expectedSize(heapSize)).create();
    for (int i = 0; i < heapSize; i++) {