from datetime import datetime import pytest from pytz import utc import pandas._testing as tm from pandas.tseries.holiday import ( MO, SA, AbstractHolidayCalendar, DateOffset, EasterMonday, GoodFriday, Holiday, HolidayCalendarFactory, Timestamp, USColumbusDay, USLaborDay, USMartinLutherKingJr, USMemorialDay, USPresidentsDay, USThanksgivingDay, get_calendar, next_monday, ) def _check_holiday_results(holiday, start, end, expected): """ Check that the dates for a given holiday match in date and timezone. Parameters ---------- holiday : Holiday The holiday to check. start : datetime-like The start date of range in which to collect dates for a given holiday. end : datetime-like The end date of range in which to collect dates for a given holiday. expected : list The list of dates we expect to get. """ assert list(holiday.dates(start, end)) == expected # Verify that timezone info is preserved. assert list( holiday.dates(utc.localize(Timestamp(start)), utc.localize(Timestamp(end))) ) == [utc.localize(dt) for dt in expected] @pytest.mark.parametrize( "holiday,start_date,end_date,expected", [ ( USMemorialDay, datetime(2011, 1, 1), datetime(2020, 12, 31), [ datetime(2011, 5, 30), datetime(2012, 5, 28), datetime(2013, 5, 27), datetime(2014, 5, 26), datetime(2015, 5, 25), datetime(2016, 5, 30), datetime(2017, 5, 29), datetime(2018, 5, 28), datetime(2019, 5, 27), datetime(2020, 5, 25), ], ), ( Holiday("July 4th Eve", month=7, day=3), "2001-01-01", "2003-03-03", [Timestamp("2001-07-03 00:00:00"), Timestamp("2002-07-03 00:00:00")], ), ( Holiday("July 4th Eve", month=7, day=3, days_of_week=(0, 1, 2, 3)), "2001-01-01", "2008-03-03", [ Timestamp("2001-07-03 00:00:00"), Timestamp("2002-07-03 00:00:00"), Timestamp("2003-07-03 00:00:00"), Timestamp("2006-07-03 00:00:00"), Timestamp("2007-07-03 00:00:00"), ], ), ( EasterMonday, datetime(2011, 1, 1), datetime(2020, 12, 31), [ Timestamp("2011-04-25 00:00:00"), Timestamp("2012-04-09 00:00:00"), Timestamp("2013-04-01 00:00:00"), Timestamp("2014-04-21 00:00:00"), Timestamp("2015-04-06 00:00:00"), Timestamp("2016-03-28 00:00:00"), Timestamp("2017-04-17 00:00:00"), Timestamp("2018-04-02 00:00:00"), Timestamp("2019-04-22 00:00:00"), Timestamp("2020-04-13 00:00:00"), ], ), ( GoodFriday, datetime(2011, 1, 1), datetime(2020, 12, 31), [ Timestamp("2011-04-22 00:00:00"), Timestamp("2012-04-06 00:00:00"), Timestamp("2013-03-29 00:00:00"), Timestamp("2014-04-18 00:00:00"), Timestamp("2015-04-03 00:00:00"), Timestamp("2016-03-25 00:00:00"), Timestamp("2017-04-14 00:00:00"), Timestamp("2018-03-30 00:00:00"), Timestamp("2019-04-19 00:00:00"), Timestamp("2020-04-10 00:00:00"), ], ), ( USThanksgivingDay, datetime(2011, 1, 1), datetime(2020, 12, 31), [ datetime(2011, 11, 24), datetime(2012, 11, 22), datetime(2013, 11, 28), datetime(2014, 11, 27), datetime(2015, 11, 26), datetime(2016, 11, 24), datetime(2017, 11, 23), datetime(2018, 11, 22), datetime(2019, 11, 28), datetime(2020, 11, 26), ], ), ], ) def test_holiday_dates(holiday, start_date, end_date, expected): _check_holiday_results(holiday, start_date, end_date, expected) @pytest.mark.parametrize( "holiday,start,expected", [ (USMemorialDay, datetime(2015, 7, 1), []), (USMemorialDay, "2015-05-25", "2015-05-25"), (USLaborDay, datetime(2015, 7, 1), []), (USLaborDay, "2015-09-07", "2015-09-07"), (USColumbusDay, datetime(2015, 7, 1), []), (USColumbusDay, "2015-10-12", "2015-10-12"), (USThanksgivingDay, datetime(2015, 7, 1), []), (USThanksgivingDay, "2015-11-26", "2015-11-26"), (USMartinLutherKingJr, datetime(2015, 7, 1), []), (USMartinLutherKingJr, "2015-01-19", "2015-01-19"), (USPresidentsDay, datetime(2015, 7, 1), []), (USPresidentsDay, "2015-02-16", "2015-02-16"), (GoodFriday, datetime(2015, 7, 1), []), (GoodFriday, "2015-04-03", "2015-04-03"), (EasterMonday, "2015-04-06", "2015-04-06"), (EasterMonday, datetime(2015, 7, 1), []), (EasterMonday, "2015-04-05", []), ("New Years Day", "2015-01-01", "2015-01-01"), ("New Years Day", "2010-12-31", "2010-12-31"), ("New Years Day", datetime(2015, 7, 1), []), ("New Years Day", "2011-01-01", []), ("July 4th", "2015-07-03", "2015-07-03"), ("July 4th", datetime(2015, 7, 1), []), ("July 4th", "2015-07-04", []), ("Veterans Day", "2012-11-12", "2012-11-12"), ("Veterans Day", datetime(2015, 7, 1), []), ("Veterans Day", "2012-11-11", []), ("Christmas", "2011-12-26", "2011-12-26"), ("Christmas", datetime(2015, 7, 1), []), ("Christmas", "2011-12-25", []), ], ) def test_holidays_within_dates(holiday, start, expected): # see gh-11477 # # Fix holiday behavior where holiday.dates returned dates outside # start/end date, or observed rules could not be applied because the # holiday was not in the original date range (e.g., 7/4/2015 -> 7/3/2015). if isinstance(holiday, str): calendar = get_calendar("USFederalHolidayCalendar") holiday = calendar.rule_from_name(holiday) if isinstance(expected, str): expected = [Timestamp(expected)] _check_holiday_results(holiday, start, start, expected) @pytest.mark.parametrize( "transform", [lambda x: x.strftime("%Y-%m-%d"), lambda x: Timestamp(x)] ) def test_argument_types(transform): start_date = datetime(2011, 1, 1) end_date = datetime(2020, 12, 31) holidays = USThanksgivingDay.dates(start_date, end_date) holidays2 = USThanksgivingDay.dates(transform(start_date), transform(end_date)) tm.assert_index_equal(holidays, holidays2) @pytest.mark.parametrize( "name,kwargs", [ ("One-Time", dict(year=2012, month=5, day=28)), ( "Range", dict( month=5, day=28, start_date=datetime(2012, 1, 1), end_date=datetime(2012, 12, 31), offset=DateOffset(weekday=MO(1)), ), ), ], ) def test_special_holidays(name, kwargs): base_date = [datetime(2012, 5, 28)] holiday = Holiday(name, **kwargs) start_date = datetime(2011, 1, 1) end_date = datetime(2020, 12, 31) assert base_date == holiday.dates(start_date, end_date) def test_get_calendar(): class TestCalendar(AbstractHolidayCalendar): rules = [] calendar = get_calendar("TestCalendar") assert TestCalendar == type(calendar) def test_factory(): class_1 = HolidayCalendarFactory( "MemorialDay", AbstractHolidayCalendar, USMemorialDay ) class_2 = HolidayCalendarFactory( "Thanksgiving", AbstractHolidayCalendar, USThanksgivingDay ) class_3 = HolidayCalendarFactory("Combined", class_1, class_2) assert len(class_1.rules) == 1 assert len(class_2.rules) == 1 assert len(class_3.rules) == 2 def test_both_offset_observance_raises(): # see gh-10217 msg = "Cannot use both offset and observance" with pytest.raises(NotImplementedError, match=msg): Holiday( "Cyber Monday", month=11, day=1, offset=[DateOffset(weekday=SA(4))], observance=next_monday, )