def test_sparse_to_dense(): todense = DenseTransformer() tfidf = TfidfTransformer() X_t = tfidf.fit_transform([[1, 2, 3]]) assert issparse(X_t) X_dense = todense.transform(X_t) expect = np.array([[0.26726124, 0.53452248, 0.80178373]]) assert np.allclose(X_dense, expect)
def test_dense_to_dense(): todense = DenseTransformer(return_copy=False) np.testing.assert_array_equal(X, todense.transform(X))