def test__fast_parse_utc_datestring_no_microseconds(self):
expected_value = datetime(2047, 1, 6, 8, 21, tzinfo=tzutc())
assert _fast_parse_utc_datestring(
'2047-01-06T08:21:00.0+0000') == expected_value
def test__fast_parse_utc_datestring_invalid_input(self, invalid_string):
with pytest.raises(ValueError, match="does not match format"):
_fast_parse_utc_datestring(invalid_string)
def test__fast_parse_utc_datestring_roundtrips(self):
tstamp = datetime.now(UTC)
tstamp_str = tstamp.strftime(DATETIME_FORMAT)
assert _fast_parse_utc_datestring(tstamp_str) == tstamp
