test_model_selection.py 文件源码

def test_raises():
    """[Model Selection] Test raises on error."""

    evl = Evaluator(bad_scorer, verbose=1)

    with open(os.devnull, 'w') as f, redirect_stdout(f):
        np.testing.assert_raises(
            ValueError, evl.fit, X, y, estimators=[OLS()],
            param_dicts={'ols': {'offset': randint(1, 10)}}, n_iter=1)