static <E extends Enum<E>> int untetheredSubscriptionStateChangeLength(final E from, final E to)
    {
        return stateTransitionStringLength(from, to) + SIZE_OF_LONG + 2 * SIZE_OF_INT;
    }
@Test
    void untetheredSubscriptionStateChangeLengthComputesLengthBasedOnProvidedState()
    {
        final ClusterTimeUnit from = ClusterTimeUnit.MILLIS;
        final ClusterTimeUnit to = ClusterTimeUnit.NANOS;

        assertEquals(stateTransitionStringLength(from, to) + SIZE_OF_LONG + 2 * SIZE_OF_INT,
            untetheredSubscriptionStateChangeLength(from, to));
    }