# -*- coding: utf-8 -*-
import quantities as pq

from pylatex.quantities import Quantity, _dimensionality_to_siunitx


def test_quantity():
    v = 1 * pq.m / pq.s

    q1 = Quantity(v)
    assert q1.dumps() == r"\SI{1.0}{\meter\per\second}"

    q2 = Quantity(v, format_cb=lambda x: str(int(x)))
    assert q2.dumps() == r"\SI{1}{\meter\per\second}"

    q3 = Quantity(v, options={"zero-decimal-to-integer": "true"})
    ref = r"\SI[zero-decimal-to-integer=true]{1.0}{\meter\per\second}"
    assert q3.dumps() == ref


def test_quantity_float():
    q1 = Quantity(42.0)
    assert q1.dumps() == r"\num{42.0}"


def test_quantity_uncertain():
    t = pq.UncertainQuantity(7.0, pq.second, 1.0)
    q1 = Quantity(t)
    assert q1.dumps() == r"\SI{7.0 +- 1.0}{\second}"


def test_dimensionality_to_siunitx():
    assert (
        _dimensionality_to_siunitx((pq.volt / pq.kelvin).dimensionality)
        == r"\volt\per\Kelvin"
    )


if __name__ == "__main__":
    test_quantity()
    test_quantity_uncertain()
    test_dimensionality_to_siunitx()