#!/usr/bin/env python # -*- coding: utf-8 -*- import unittest from datetime import datetime, timedelta import pytz from croniter import croniter, croniter_range, CroniterBadDateError, CroniterBadCronError, CroniterBadTypeRangeError from croniter.tests import base class mydatetime(datetime): """.""" class CroniterRangeTest(base.TestCase): def test_1day_step(self): start = datetime(2016, 12, 2) stop = datetime(2016, 12, 10) fwd = list(croniter_range(start, stop, '0 0 * * *')) self.assertEqual(len(fwd), 9) self.assertEqual(fwd[0], start) self.assertEqual(fwd[-1], stop) # Test the same, but in reverse rev = list(croniter_range(stop, start, '0 0 * * *')) self.assertEqual(len(rev), 9) # Ensure forward/reverse are a mirror image rev.reverse() self.assertEqual(fwd, rev) def test_1day_step_no_ends(self): # Test without ends (exclusive) start = datetime(2016, 12, 2) stop = datetime(2016, 12, 10) fwd = list(croniter_range(start, stop, '0 0 * * *', exclude_ends=True)) self.assertEqual(len(fwd), 7) self.assertNotEqual(fwd[0], start) self.assertNotEqual(fwd[-1], stop) # Test the same, but in reverse rev = list(croniter_range(stop, start, '0 0 * * *', exclude_ends=True)) self.assertEqual(len(rev), 7) self.assertNotEqual(fwd[0], stop) self.assertNotEqual(fwd[-1], start) def test_1month_step(self): start = datetime(1982, 1, 1) stop = datetime(1983, 12, 31) res = list(croniter_range(start, stop, '0 0 1 * *')) self.assertEqual(len(res), 24) self.assertEqual(res[0], start) self.assertEqual(res[5].day, 1) self.assertEqual(res[-1], datetime(1983, 12, 1)) def test_1minute_step_float(self): start = datetime(2000, 1, 1, 0, 0) stop = datetime(2000, 1, 1, 0, 1) res = list(croniter_range(start, stop, '* * * * *', ret_type=float)) self.assertEqual(len(res), 2) self.assertEqual(res[0], 946684800.0) self.assertEqual(res[-1] - res[0], 60) def test_auto_ret_type(self): data = [ (datetime(2019, 1, 1), datetime(2020, 1, 1), datetime), (1552252218.0, 1591823311.0, float), ] for start, stop, rtype in data: ret = list(croniter_range(start, stop, "0 0 * * *")) self.assertIsInstance(ret[0], rtype) def test_input_type_exceptions(self): dt_start1 = datetime(2019, 1, 1) dt_stop1 = datetime(2020, 1, 1) f_start1 = 1552252218.0 f_stop1 = 1591823311.0 # Mix start/stop types with self.assertRaises(TypeError): list(croniter_range(dt_start1, f_stop1, "0 * * * *"), ret_type=datetime) with self.assertRaises(TypeError): list(croniter_range(f_start1, dt_stop1, "0 * * * *")) def test_timezone_dst(self): """ Test across DST transition, which technically is a timzone change. """ tz = pytz.timezone("America/New_York") start = tz.localize(datetime(2020, 10, 30)) stop = tz.localize(datetime(2020, 11, 10)) res = list(croniter_range(start, stop, '0 0 * * *')) self.assertNotEqual(res[0].tzinfo, res[-1].tzinfo) self.assertEqual(len(res), 12) def test_extra_hour_day_prio(self): def datetime_tz(*args, **kw): """ Defined this in another branch. single-use-version """ tzinfo = kw.pop("tzinfo") return tzinfo.localize(datetime(*args)) tz = pytz.timezone("America/New_York") cron = "0 3 * * *" start = datetime_tz(2020, 3, 7, tzinfo=tz) end = datetime_tz(2020, 3, 11, tzinfo=tz) ret = [ i.isoformat() for i in croniter_range(start, end, cron) ] self.assertEqual(ret, [ "2020-03-07T03:00:00-05:00", "2020-03-08T03:00:00-04:00", "2020-03-09T03:00:00-04:00", "2020-03-10T03:00:00-04:00"]) def test_issue145_getnext(self): # Example of quarterly event cron schedule start = datetime(2020, 9, 24) cron = "0 13 8 1,4,7,10 wed" with self.assertRaises(CroniterBadDateError): it = croniter(cron, start, day_or=False, max_years_between_matches=1) it.get_next() # New functionality (0.3.35) allowing croniter to find spare matches of cron patterns across multiple years it = croniter(cron, start, day_or=False, max_years_between_matches=5) self.assertEqual(it.get_next(datetime), datetime(2025, 1, 8, 13)) def test_issue145_range(self): cron = "0 13 8 1,4,7,10 wed" matches = list(croniter_range(datetime(2020, 1, 1), datetime(2020, 12, 31), cron, day_or=False)) self.assertEqual(len(matches), 3) self.assertEqual(matches[0], datetime(2020, 1, 8, 13)) self.assertEqual(matches[1], datetime(2020, 4, 8, 13)) self.assertEqual(matches[2], datetime(2020, 7, 8, 13)) # No matches within this range; therefore expect empty list matches = list(croniter_range(datetime(2020, 9, 30), datetime(2020, 10, 30), cron, day_or=False)) self.assertEqual(len(matches), 0) def test_croniter_range_derived_class(self): # trivial example extending croniter class croniter_nosec(croniter): """ Like croniter, but it forbids second-level cron expressions. """ @classmethod def expand(cls, expr_format, *args, **kwargs): if len(expr_format.split()) == 6: raise CroniterBadCronError("Expected 'min hour day mon dow'") return croniter.expand(expr_format, *args, **kwargs) cron = "0 13 8 1,4,7,10 wed" matches = list(croniter_range(datetime(2020, 1, 1), datetime(2020, 12, 31), cron, day_or=False, _croniter=croniter_nosec)) self.assertEqual(len(matches), 3) cron = "0 1 8 1,15,L wed 15,45" with self.assertRaises(CroniterBadCronError): # Should fail using the custom class that forbids the seconds expression croniter_nosec(cron) with self.assertRaises(CroniterBadCronError): # Should similarly fail because the custom class rejects seconds expr i = croniter_range(datetime(2020, 1, 1), datetime(2020, 12, 31), cron, _croniter=croniter_nosec) next(i) def test_dt_types(self): start = mydatetime(2020, 9, 24) stop = datetime(2020, 9, 28) try: list(croniter_range(start, stop, '0 0 * * *')) except CroniterBadTypeRangeError: self.fail('should not be triggered') def test_configure_second_location(self): start = datetime(2016, 12, 2, 0, 0, 0) stop = datetime(2016, 12, 2, 0, 1, 0) fwd = list(croniter_range(start, stop, '*/20 * * * * *', second_at_beginning=True)) self.assertEqual(len(fwd), 4) self.assertEqual(fwd[0], start) self.assertEqual(fwd[-1], stop) if __name__ == '__main__': unittest.main()