### Question:
OperationMonitor { long getCount() { return count.get(); } OperationMonitor(); private  OperationMonitor(final RateTimer timer);   OperationMonitor(final RateTimer timer, final RateWindow rateWindow);   }### Answer:
@Test public void shouldGetCountReturningZeroWhenNoIncrement() { long count = operationMonitor.getCount(); assertEquals(count, 0); }