@Test
  public void testTimedOut() throws Exception {
    RoundRobinSchedulerStats stats = new RoundRobinSchedulerStats();
    assertEquals("Wrong default timed out value.", 0, stats.getTimedOutCount());

    stats.incrementTimedOut(3);
    assertEquals("Wrong timed out value.", 3, stats.getTimedOutCount());

    stats.incrementTimedOut(2);
    assertEquals("Wrong timed out value.", 5, stats.getTimedOutCount());
  }