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import unittest
from datetime import datetime, timezone
import pytest
from huggingface_hub.utils import parse_datetime
class TestDatetimeUtils(unittest.TestCase):
def test_parse_datetime(self):
"""Test `parse_datetime` works correctly on datetimes returned by server."""
self.assertEqual(
parse_datetime("2022-08-19T07:19:38.123Z"),
datetime(2022, 8, 19, 7, 19, 38, 123000, tzinfo=timezone.utc),
)
# Test nanoseconds precision (should be truncated to microseconds)
self.assertEqual(
parse_datetime("2022-08-19T07:19:38.123456789Z"),
datetime(2022, 8, 19, 7, 19, 38, 123456, tzinfo=timezone.utc),
)
# Test without milliseconds (should add .000)
self.assertEqual(
parse_datetime("2024-11-16T00:27:02Z"),
datetime(2024, 11, 16, 0, 27, 2, 0, tzinfo=timezone.utc),
)
with pytest.raises(ValueError, match=r".*Cannot parse '2022-08-19T07:19:38' as a datetime.*"):
parse_datetime("2022-08-19T07:19:38")
with pytest.raises(
ValueError,
match=r".*Cannot parse '2022-08-19T07:19:38.123' as a datetime.*",
):
parse_datetime("2022-08-19T07:19:38.123")
with pytest.raises(
ValueError,
match=r".*Cannot parse '2022-08-19 07:19:38.123Z\+6:00' as a datetime.*",
):
parse_datetime("2022-08-19 07:19:38.123Z+6:00")
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