def METHOD_NAME(self):
    # Arrange
    activity_page = self.create_activity_detail_page(
        "Test", "test", grade_level_list=[]
    )
    # Act
    actual_grade_level_ids = activity_page.get_grade_level_ids()
    # Assert
    self.assertIsInstance(actual_grade_level_ids, list)
    self.assertFalse(actual_grade_level_ids)