def test_pandas_mode(self):

        y, X, w = make_sparse_coded_signal(1, 512, 100, 17, pandas_mode=True)
        assert isinstance(y, pd.DataFrame)
        assert isinstance(X, pd.DataFrame)
        assert isinstance(w, pd.DataFrame)
        assert np.array_equal(y.index, X.index)
        assert np.array_equal(y.columns, w.columns)
        assert np.array_equal(X.columns, w.index)
    def test_normal_mode(self):

        y, X, w = make_sparse_coded_signal(1, 512, 100, 17)
        assert isinstance(y, np.ndarray)
        assert isinstance(X, np.ndarray)
        assert isinstance(w, np.ndarray)