public static DisruptContext delay(long delay)
  {
    if (delay < 0)
    {
      throw new IllegalArgumentException("Delay cannot be smaller than 0");
    }
    return new DelayDisruptContext(delay);
  }
@Test(expectedExceptions = IllegalArgumentException.class)
  public void testLatencyIllegal()
  {
    final long latency = -4200;
    DisruptContexts.delay(latency);
  }