"""Unit-Tests für club_features (ohne DB)."""
from datetime import datetime, timezone

from club_features import _calculate_next_reset, _normalize_limit


def test_normalize_limit_none_and_negative():
    assert _normalize_limit(None) is None
    assert _normalize_limit(-1) is None
    assert _normalize_limit(0) == 0
    assert _normalize_limit(50) == 50


def test_calculate_next_reset_never():
    assert _calculate_next_reset("never") is None


def test_calculate_next_reset_monthly_december():
    ref = datetime(2026, 12, 15, 12, 0, tzinfo=timezone.utc)
    nxt = _calculate_next_reset("monthly", now=ref)
    assert nxt == datetime(2027, 1, 1, tzinfo=timezone.utc)


def test_calculate_next_reset_monthly_mid_year():
    ref = datetime(2026, 6, 6, 12, 0, tzinfo=timezone.utc)
    nxt = _calculate_next_reset("monthly", now=ref)
    assert nxt == datetime(2026, 7, 1, tzinfo=timezone.utc)