import datetime as dt

import pytest
import pytz

from conftest import patch_import


with patch_import():
    from utils.timestamp import Timestamp, TimestampError


@pytest.mark.parametrize(
    "timestamp, expected_timestamp",
    (
        ("1663160947", dt.datetime(2022, 9, 14, 13, 9, 7, tzinfo=pytz.utc)),
        ("-1663160947", dt.datetime(1917, 4, 19, 10, 50, 53, tzinfo=pytz.utc)),
        pytest.param("1663160947.123", None, marks=pytest.mark.xfail(raises=TimestampError)),
        pytest.param("123123123888888", None, marks=pytest.mark.xfail(raises=TimestampError)),
        pytest.param("-123123123888888", None, marks=pytest.mark.xfail(raises=TimestampError)),
        pytest.param("9999999999999999", None, marks=pytest.mark.xfail(raises=TimestampError)),
        pytest.param("foo", None, marks=pytest.mark.xfail(raises=TimestampError)),
        pytest.param("", None, marks=pytest.mark.xfail(raises=TimestampError)),
    ),
)
def test_from_string(timestamp, expected_timestamp):
    t = Timestamp.from_string(timestamp)
    assert t._value == expected_timestamp