def METHOD_NAME(self):
    """
    Test for featurization of "C" using `MXMNetFeaturizer` class.
    """
    featurizer = dc.feat.molecule_featurizers.mxmnet_featurizer.MXMNetFeaturizer(
    )
    graph_feat = featurizer.featurize(self.smiles)
    assert len(graph_feat) == 4
    assert graph_feat[2].num_nodes == 1
    assert graph_feat[2].num_node_features == 1
    assert graph_feat[2].node_features.shape == (1, 1)
    assert graph_feat[2].num_edges == 0
    assert (graph_feat[2].node_features == self.node_features[2]).all()
    assert (graph_feat[2].edge_index == self.edge_index[2]).all()