def METHOD_NAME(self) -> None:
    fake_learner_id = 'fake_learner_id'
    learner_groups = (
        learner_group_fetchers.get_invited_learner_groups_of_learner(
            fake_learner_id
        )
    )
    self.assertEqual(len(learner_groups), 0)
    learner_groups = (
        learner_group_fetchers.get_invited_learner_groups_of_learner(
            self.LEARNER_ID_1
        )
    )
    self.assertEqual(len(learner_groups), 1)
    self.assertEqual(learner_groups[0].group_id, self.LEARNER_GROUP_ID)