import pytest
from ee import EeVal


@pytest.mark.parametrize("s, num_value, str_value, unit", [
    # ("0", 0, "0", None),
    # ("0 k", 0, "0", None),
    # ("1", 1, "1", None),
    # ("1e-3", 0.001, "1 m", None),
    # ("1e3", 1000, "1 k", None),
    # ("4.7e3", 4700, "4.7 k", None),
    ("4.e3", 4000, "4 k", None),
    # ("10", 10, "10", None),
    # ("10k", 10 * 1000, "10 k", None),
    # ("10 k", 10 * 1000, "10 k", None),
    # ("10  k", 10 * 1000, "10 k", None),
    # ("1000 m", 1, "1", None),
    # ("100 m", 0.1, "100 m", None),
    # ("100 n", 0.0000001, "100 n", None),
    # ("1 m", 0.001, "1 m", None),
    # ("1 u", 0.000001, "1 u", None),
    # ("0.1 u", 0.0000001, "100 n", None),
    # (".1 u", 0.0000001, "100 n", None),
    # ("4.7 u", 0.0000047, "4.7 u", None),
    # ("1 µ", 0.000001, "1 u", None),
    # ("1 n", 0.000000001, "1 n", None),
    # ("10 n", 0.00000001, "10 n", None),
    # ("1p", 1e-12, "1 p", None),
    # ("0.8p", 8e-13, "0.8 p", None),
    # ("0.008p", 8e-15, "0.008 p", None),
])
def test_basic(s, num_value, str_value, unit):
    num_value = float(num_value)
    v = EeVal(s)
    assert v.value == float(v)
    epsilon = num_value * 0.01
    assert (num_value + epsilon) >= float(v) >= (num_value - epsilon)
    assert str(v) == str_value
    assert v.unit == unit


@pytest.mark.parametrize("s, str_value, unit", [
    ("10nF", "10 nF", "F"),
    ("10 nF", "10 nF", "F"),
    ("10n F", "10 nF", "F"),
    ("10 n F", "10 nF", "F"),
    ("4.7 n F", "4.7 nF", "F"),
])
def test_units(s, str_value, unit):
    v = EeVal(s)
    assert unit == v.unit
    assert float(v) == v.value
    assert str_value == str(v)


def test_ordering():
    p100 = EeVal('100 p')
    n100 = EeVal('100 n')
    n100f = EeVal('100 n F')
    u1 = EeVal('1u')
    assert n100 > p100
    assert p100 < n100
    assert n100f < u1
    assert [p100, n100, u1] == sorted([p100, u1, n100])


def test_hash():
    p100 = EeVal('100 p')
    n100 = EeVal('100 n')
    u1 = EeVal('1u')

    assert 3 == len({p100, p100, n100, u1})