import pytest

# Paramètres simples avec id au bout
@pytest.mark.parametrize("x", [
    pytest.param(1, id="one"),
    pytest.param(2, id="two")
])
def test_basic_ids(x):
    pass

# id au milieu avec autre kwarg (reason)
@pytest.mark.parametrize("x", [
    pytest.param(10, reason="because", id="ten"),
    pytest.param(20, id="twenty", marks=pytest.mark.skip(reason="nope")),
])
def test_with_reason_and_marks(x):
    pass

# Plusieurs arguments positionnels
@pytest.mark.parametrize("a, b", [
    pytest.param(1, 2, id="1-2"),
    pytest.param(3, 4,  id="3-4"),
])
def test_multiple_positional_args(a, b):
    pass

# Avec un argument non-évaluable
@pytest.mark.parametrize("data", [
    pytest.param(object(), id="custom-obj"),
])
def test_non_literal_with_id(data):
    pass

from datetime import datetime, timedelta

testdata = [
    (datetime(2001, 12, 12), datetime(2001, 12, 11), timedelta(1)),
    (datetime(2001, 12, 11), datetime(2001, 12, 12), timedelta(-1)),
]

@pytest.mark.parametrize("a,b,expected", testdata, ids=["forward", "backward"])
def test_timedistance_v1(a, b, expected):
    diff = a - b
    assert diff == expected