from legex.evaluation import _normalise, _values_agree


def test_normalise_treats_none_literal_as_empty() -> None:
    assert _normalise("None") == ""
    assert _normalise("none") == ""
    assert _normalise(None) == ""
    assert _normalise("") == ""


def test_normalise_keeps_real_values() -> None:
    assert _normalise("Claim") == "Claim"
    assert _normalise("no_allocation_possible") == "no_allocation_possible"
    assert _normalise(2.0) == "2"


def test_values_agree_when_gold_zero() -> None:
    assert _values_agree("0", "")
    assert _values_agree("0", "0.0")
    assert _values_agree("0", "0")


def test_values_agree_numeric_nonzero() -> None:
    assert _values_agree("1500", "1500.0")
    assert not _values_agree("1500", "1501")


def test_values_agree_rejects_zero_gold_with_nonempty_pred() -> None:
    assert not _values_agree("0", "nonpecuniary")
    assert not _values_agree("0", "100")