@with_setup(teardown=remove_output)
def test_featurize_files_function_regression_data():
    fset_path = pjoin(TEMP_DIR, 'test_featureset.nc')
    fset = featurize.featurize_data_files(ts_paths=TS_TARGET_PATHS,
                                          output_path=fset_path,
                                          features_to_use=["std_err", "f"],
                                          custom_script_path=CUSTOM_SCRIPT)
    assert("std_err" in fset.data_vars)
    assert("f" in fset.data_vars)
    assert(all(target in [1.0, 3.0] for target in fset['target'].values))
``twisted.trial.unittest.TestCase.assertFailure``-alike.
dataset/ETHPy150Open cesium-ml/cesium/cesium/tests/test_featurize.py/test_featurize_files_function_regression_data--crossover with--dataset/ETHPy150Open ClusterHQ/flocker/flocker/testtools/_base.py/AsyncTestCase.assertFailure