from legex.evaluation import normalise, values_agree


def testnormalise_treats_none_literal_as_empty() -> None:
    assert normalise("None") == ""
    assert normalise("none") == ""
    assert normalise(None) == ""
    assert normalise("") == ""


def testnormalise_keeps_real_values() -> None:
    assert normalise("Claim") == "Claim"
    assert normalise("no_allocation_possible") == "no_allocation_possible"
    assert normalise(2.0) == "2"


def testvalues_agree_when_gold_zero() -> None:
    assert values_agree("0", "")
    assert values_agree("0", "0.0")
    assert values_agree("0", "0")


def testvalues_agree_numeric_nonzero() -> None:
    assert values_agree("1500", "1500.0")
    assert not values_agree("1500", "1501")


def testvalues_agree_rejects_zero_gold_with_nonempty_pred() -> None:
    assert not values_agree("0", "nonpecuniary")
    assert not values_agree("0", "100")


def testvalues_agree_controlled_tokens_case_insensitive() -> None:
    assert values_agree("Nonpecuniary", "nonpecuniary", "dispute_value_nominal")
    assert values_agree("nonpecuniary", "NONPECUNIARY", "dispute_value_nominal")
    assert values_agree("No_Allocation_Possible", "no_allocation_possible")
    assert not values_agree("Nonpecuniary", "150000", "dispute_value_nominal")
    # Case-insensitivity is scoped to the controlled tokens, not free text.
    assert not values_agree("Rental_Agreement", "rental_agreement")