check_scorer_component_subselection¶

def check_scorer_component_subselection(
    scorer,
    y_truth: pl.DataFrame,
    y_pred: pl.DataFrame,
    components: list[str],
) -> None:
    """Check components filtering works correctly.

    Parameters
    ----------
    scorer : BaseScorer
        Scorer instance
    y_truth : pl.DataFrame
        Ground truth
    y_pred : pl.DataFrame
        Predictions
    components : list of str
        Component names to filter

    Raises
    ------
    AssertionError
        If component subselection fails

    """
    scorer_filtered = clone(scorer)
    scorer_filtered.set_params(components=components)

    # Always fit scorer before scoring
    scorer_filtered.fit(y_truth)

    try:
        score = scorer_filtered.score(y_truth, y_pred)
        assert isinstance(score, int | float | np.number), "Component-filtered score should be numeric"
    except Exception as e:
        raise AssertionError(f"components={components} filtering failed: {e}") from e