def METHOD_NAME(self):
    self.restservice.control.get_latest_model.return_value = 'model-uid'
    retval = self.restservice.check_initial_model()
    self.assertTrue(retval)
    self.restservice.control.get_latest_model.return_value = None
    retval = self.restservice.check_initial_model()
    self.assertFalse(retval)
    self.restservice.control.get_latest_model.return_value = ''
    retval = self.restservice.check_initial_model()
    self.assertFalse(retval)