def test_get_feature_names(): df = pd.DataFrame({'a': [4, 5, 6], 'b': ['4', '5', '6']}) transformer = ColumnSelector('a').fit(df) assert transformer.get_feature_names() == ['a']
def test_get_feature_names(): df = pd.DataFrame({"a": [4, 5, 6], "b": ["4", "5", "6"]}) transformer = ColumnSelector("a").fit(df) assert transformer.get_feature_names() == ["a"]