@Test
public void msToAppWindowCountSimpleTest()
{

  OperatorContext context = createOperatorContext(500, 10);
  long appWindowCount = WindowUtils.msToAppWindowCount(context, 10000L);
  Assert.assertEquals(2, appWindowCount);
  appWindowCount = WindowUtils.msToAppWindowCount(context, 10001L);
  Assert.assertEquals(3, appWindowCount);
}