def METHOD_NAME(self):
    self.cv_HOST.host_read_hwclock()
    self.cv_HOST.host_set_hwclock_time("2015-01-01 10:10:10")
    self.cv_HOST.host_read_hwclock()
    self.cv_HOST.host_set_hwclock_time("2016-01-01 20:20:20")
    self.cv_HOST.host_read_hwclock()