def METHOD_NAME(self, dialup_type, expected_class):
    feature_toggle = FeatureToggle(
        FeatureToggleLocalConfigProvider(os.path.join(my_path, "input", "feature_toggle_config.json")),
        stage=None,
        region=None,
        account_id=None,
    )
    region_config = {"type": dialup_type}
    dialup = feature_toggle._get_dialup(region_config, "some-feature")
    self.assertIsInstance(dialup, expected_class)