public long nextRebalanceMs() {
        return nextRebalanceMs;
    }
@Test
    public void nextRebalanceTimeShouldBeMaxValueByDefault() {
        final AssignmentInfo info = new AssignmentInfo(7, activeTasks, standbyTasks, activeAssignment, standbyAssignment, 0);
        assertEquals(info.nextRebalanceMs(), Long.MAX_VALUE);
    }