public void setColdAcc(AtomicLong coldAcc) {
        this.coldAcc = coldAcc;
    }
@Test
    public void testSetColdAcc() {
        AtomicLong newColdAcc = new AtomicLong(100L);
        accAndTimeStamp.setColdAcc(newColdAcc);
        assertEquals("Cold accumulator should be set to new value", newColdAcc, accAndTimeStamp.getColdAcc());
    }