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# holidays
# --------
# A fast, efficient Python library for generating country, province and state
# specific sets of holidays on the fly. It aims to make determining whether a
# specific date is a holiday as fast and flexible as possible.
#
# Authors: Vacanza Team and individual contributors (see CONTRIBUTORS file)
# dr-prodigy <dr.prodigy.github@gmail.com> (c) 2017-2023
# ryanss <ryanssdev@icloud.com> (c) 2014-2017
# Website: https://github.com/vacanza/holidays
# License: MIT (see LICENSE file)
import unittest
from holidays.calendars.julian import julian_calendar_drift
class TestJulianCalendar(unittest.TestCase):
def test_julian_calendar_drift(self):
known_julian_calendar_drift = {
1400: -13,
1500: -13,
1581: -13,
1582: -13,
1583: -3,
1600: -3,
1700: -2,
1800: -1,
1900: 0,
2000: 0,
2025: 0,
2100: +1,
2200: +2,
}
for year in known_julian_calendar_drift:
self.assertEqual(known_julian_calendar_drift[year], julian_calendar_drift(year))
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