from __future__ import annotations
from datetime import datetime, timezone
import os
import sys
# Add src to path to ensure local package is found
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../src")))
from mtdata.utils.utils import _parse_start_datetime, _utc_epoch_seconds
def test_utc_epoch_seconds_treats_naive_as_utc() -> None:
dt = datetime(2020, 1, 1, 0, 0, 0)
assert int(_utc_epoch_seconds(dt)) == 1577836800
def test_utc_epoch_seconds_handles_aware() -> None:
dt = datetime(2020, 1, 1, 0, 0, 0, tzinfo=timezone.utc)
assert int(_utc_epoch_seconds(dt)) == 1577836800
def test_parse_start_datetime_epoch_is_utc() -> None:
dt = _parse_start_datetime("2020-01-01 00:00:00")
assert dt is not None
assert dt.tzinfo is None
assert int(_utc_epoch_seconds(dt)) == 1577836800
