test_date_parser.py

import unittest
from datetime import datetime, timedelta
from functools import wraps

from unittest.mock import patch, Mock
from parameterized import parameterized, param

import dateparser.timezone_parser
from dateparser.date import DateDataParser, date_parser
from dateparser.date_parser import DateParser
from dateparser.parser import _parse_absolute
from dateparser.timezone_parser import StaticTzInfo
from dateparser.utils import normalize_unicode

from tests import BaseTestCase


class TestDateParser(BaseTestCase):
    def setUp(self):
        super().setUp()
        self.parser = NotImplemented
        self.result = NotImplemented
        self.date_parser = NotImplemented
        self.date_result = NotImplemented

    @parameterized.expand([
        # English dates
        param('[Sept] 04, 2014.', datetime(2014, 9, 4)),
        param('Tuesday Jul 22, 2014', datetime(2014, 7, 22)),
        param('Tues 9th Aug, 2015', datetime(2015, 8, 9)),
        param('10:04am', datetime(2012, 11, 13, 10, 4)),
        param('Friday', datetime(2012, 11, 9)),
        param('November 19, 2014 at noon', datetime(2014, 11, 19, 12, 0)),
        param('December 13, 2014 at midnight', datetime(2014, 12, 13, 0, 0)),
        param('Nov 25 2014 10:17 pm', datetime(2014, 11, 25, 22, 17)),
        param('Wed Aug 05 12:00:00 2015', datetime(2015, 8, 5, 12, 0)),
        param('April 9, 2013 at 6:11 a.m.', datetime(2013, 4, 9, 6, 11)),
        param('Aug. 9, 2012 at 2:57 p.m.', datetime(2012, 8, 9, 14, 57)),
        param('December 10, 2014, 11:02:21 pm', datetime(2014, 12, 10, 23, 2, 21)),
        param('8:25 a.m. Dec. 12, 2014', datetime(2014, 12, 12, 8, 25)),
        param('2:21 p.m., December 11, 2014', datetime(2014, 12, 11, 14, 21)),
        param('Fri, 12 Dec 2014 10:55:50', datetime(2014, 12, 12, 10, 55, 50)),
        param('20 Mar 2013 10h11', datetime(2013, 3, 20, 10, 11)),
        param('10:06am Dec 11, 2014', datetime(2014, 12, 11, 10, 6)),
        param('19 February 2013 year 09:10', datetime(2013, 2, 19, 9, 10)),
        param('21 January 2012 13:11:23.678', datetime(2012, 1, 21, 13, 11, 23, 678000)),
        param('1/1/16 9:02:43.1', datetime(2016, 1, 1, 9, 2, 43, 100000)),
        param('29.02.2020 13.12', datetime(2020, 2, 29, 13, 12)),
        param('Wednesday, 22nd June, 2016, 12.16 pm.', datetime(2016, 6, 22, 12, 16)),
        # French dates
        param('11 Mai 2014', datetime(2014, 5, 11)),
        param('dimanche, 11 Mai 2014', datetime(2014, 5, 11)),
        param('22 janvier 2015 à 14h40', datetime(2015, 1, 22, 14, 40)),
        param('Dimanche 1er Février à 21:24', datetime(2012, 2, 1, 21, 24)),
        param('vendredi, décembre 5 2014.', datetime(2014, 12, 5, 0, 0)),
        param('le 08 Déc 2014 15:11', datetime(2014, 12, 8, 15, 11)),
        param('Le 11 Décembre 2014 à 09:00', datetime(2014, 12, 11, 9, 0)),
        param('fév 15, 2013', datetime(2013, 2, 15, 0, 0)),
        param('Jeu 15:12', datetime(2012, 11, 8, 15, 12)),
        # Spanish dates
        param('Martes 21 de Octubre de 2014', datetime(2014, 10, 21)),
        param('Miércoles 20 de Noviembre de 2013', datetime(2013, 11, 20)),
        param('12 de junio del 2012', datetime(2012, 6, 12)),
        param('13 Ago, 2014', datetime(2014, 8, 13)),
        param('13 Septiembre, 2014', datetime(2014, 9, 13)),
        param('11 Marzo, 2014', datetime(2014, 3, 11)),
        param('julio 5, 2015 en 1:04 pm', datetime(2015, 7, 5, 13, 4)),
        param('Vi 17:15', datetime(2012, 11, 9, 17, 15)),
        # Dutch dates
        param('11 augustus 2014', datetime(2014, 8, 11)),
        param('14 januari 2014', datetime(2014, 1, 14)),
        param('vr jan 24, 2014 12:49', datetime(2014, 1, 24, 12, 49)),
        # Italian dates
        param('16 giu 2014', datetime(2014, 6, 16)),
        param('26 gennaio 2014', datetime(2014, 1, 26)),
        param('Ven 18:23', datetime(2012, 11, 9, 18, 23)),
        # Portuguese dates
        param('sexta-feira, 10 de junho de 2014 14:52', datetime(2014, 6, 10, 14, 52)),
        param('13 Setembro, 2014', datetime(2014, 9, 13)),
        param('Sab 3:03', datetime(2012, 11, 10, 3, 3)),
        # Russian dates
        param('10 мая', datetime(2012, 5, 10)),  # forum.codenet.ru
        param('26 апреля', datetime(2012, 4, 26)),
        param('20 ноября 2013', datetime(2013, 11, 20)),
        param('28 октября 2014 в 07:54', datetime(2014, 10, 28, 7, 54)),
        param('13 января 2015 г. в 13:34', datetime(2015, 1, 13, 13, 34)),
        param('09 августа 2012', datetime(2012, 8, 9, 0, 0)),
        param('Авг 26, 2015 15:12', datetime(2015, 8, 26, 15, 12)),
        param('2 Декабрь 95 11:15', datetime(1995, 12, 2, 11, 15)),
        param('13 янв. 2005 19:13', datetime(2005, 1, 13, 19, 13)),
        param('13 авг. 2005 19:13', datetime(2005, 8, 13, 19, 13)),
        param('13 авг. 2005г. 19:13', datetime(2005, 8, 13, 19, 13)),
        param('13 авг. 2005 г. 19:13', datetime(2005, 8, 13, 19, 13)),
        param('21 сентября 2021г., вторник', datetime(2021, 9, 21, 0, 0)),
        # Turkish dates
        param('11 Ağustos, 2014', datetime(2014, 8, 11)),
        param('08.Haziran.2014, 11:07', datetime(2014, 6, 8, 11, 7)),  # forum.andronova.net
        param('17.Şubat.2014, 17:51', datetime(2014, 2, 17, 17, 51)),
        param('14-Aralık-2012, 20:56', datetime(2012, 12, 14, 20, 56)),  # forum.ceviz.net
        # Romanian dates
        param('13 iunie 2013', datetime(2013, 6, 13)),
        param('14 aprilie 2014', datetime(2014, 4, 14)),
        param('18 martie 2012', datetime(2012, 3, 18)),
        param('12-Iun-2013', datetime(2013, 6, 12)),
        # German dates
        param('21. Dezember 2013', datetime(2013, 12, 21)),
        param('19. Februar 2012', datetime(2012, 2, 19)),
        param('26. Juli 2014', datetime(2014, 7, 26)),
        param('18.10.14 um 22:56 Uhr', datetime(2014, 10, 18, 22, 56)),
        param('12-Mär-2014', datetime(2014, 3, 12)),
        param('Mit 13:14', datetime(2012, 11, 7, 13, 14)),
        param('23. März 18.37 Uhr', datetime(2012, 3, 23, 18, 37)),
        # Czech dates
        param('pon 16. čer 2014 10:07:43', datetime(2014, 6, 16, 10, 7, 43)),
        param('13 Srpen, 2014', datetime(2014, 8, 13)),
        param('čtv 14. lis 2013 12:38:43', datetime(2013, 11, 14, 12, 38, 43)),
        # Thai dates
        param('ธันวาคม 11, 2014, 08:55:08 PM', datetime(2014, 12, 11, 20, 55, 8)),
        param('22 พฤษภาคม 2012, 22:12', datetime(2012, 5, 22, 22, 12)),
        param('11 กุมภา 2020, 8:13 AM', datetime(2020, 2, 11, 8, 13)),
        param('1 เดือนตุลาคม 2005, 1:00 AM', datetime(2005, 10, 1, 1, 0)),
        param('11 ก.พ. 2020, 1:13 pm', datetime(2020, 2, 11, 13, 13)),
        # Vietnamese dates
        param('Thứ năm', datetime(2012, 11, 8)),  # Thursday
        param('Thứ sáu', datetime(2012, 11, 9)),  # Friday
        param('Tháng Mười Hai 29, 2013, 14:14', datetime(2013, 12, 29, 14, 14)),  # bpsosrcs.wordpress.com  # NOQA
        param('05 Tháng một 2015 - 03:54 AM', datetime(2015, 1, 5, 3, 54)),
        # Belarusian dates
        param('11 траўня', datetime(2012, 5, 11)),
        param('4 мая', datetime(2012, 5, 4)),
        param('Чацвер 06 жніўня 2015', datetime(2015, 8, 6)),
        param('Нд 14 сакавіка 2015 у 7 гадзін 10 хвілін', datetime(2015, 3, 14, 7, 10)),
        param('5 жніўня 2015 года у 13:34', datetime(2015, 8, 5, 13, 34)),
        # Ukrainian dates
        param('2015-кві-12', datetime(2015, 4, 12)),
        param('21 чер 2013 3:13', datetime(2013, 6, 21, 3, 13)),
        param('12 лютого 2012, 13:12:23', datetime(2012, 2, 12, 13, 12, 23)),
        param('вів о 14:04', datetime(2012, 11, 13, 14, 4)),
        # Tagalog dates
        param('12 Hulyo 2003 13:01', datetime(2003, 7, 12, 13, 1)),
        param('1978, 1 Peb, 7:05 PM', datetime(1978, 2, 1, 19, 5)),
        param('2 hun', datetime(2012, 6, 2)),
        param('Lin 16:16', datetime(2012, 11, 11, 16, 16)),
        # Japanese dates
        param('2016年3月20日(日) 21時40分', datetime(2016, 3, 20, 21, 40)),
        param("2016年3月20日 21時40分", datetime(2016, 3, 20, 21, 40)),
        # Numeric dates
        param('06-17-2014', datetime(2014, 6, 17)),
        param('13/03/2014', datetime(2014, 3, 13)),
        param('11. 12. 2014, 08:45:39', datetime(2014, 11, 12, 8, 45, 39)),
        # Miscellaneous dates
        param('1 Ni 2015', datetime(2015, 4, 1, 0, 0)),
        param('1 Mar 2015', datetime(2015, 3, 1, 0, 0)),
        param('1 сер 2015', datetime(2015, 8, 1, 0, 0)),
        # Chinese dates
        param('2015年04月08日10:05', datetime(2015, 4, 8, 10, 5)),
        param('2012年12月20日10:35', datetime(2012, 12, 20, 10, 35)),
        param('2016年06月30日09时30分', datetime(2016, 6, 30, 9, 30)),
        param('2016年6月2911:30', datetime(2016, 6, 29, 11, 30)),
        param('2016年6月29', datetime(2016, 6, 29, 0, 0)),
        param('2016年 2月 5日', datetime(2016, 2, 5, 0, 0)),
        param('2016年9月14日晚8:00', datetime(2016, 9, 14, 20, 0)),
        # Bulgarian
        param('25 ян 2016', datetime(2016, 1, 25, 0, 0)),
        param('23 декември 2013 15:10:01', datetime(2013, 12, 23, 15, 10, 1)),
        # Bangla dates
        param('[সেপ্টেম্বর] 04, 2014.', datetime(2014, 9, 4)),
        param('মঙ্গলবার জুলাই 22, 2014', datetime(2014, 7, 22)),
        param('শুক্রবার', datetime(2012, 11, 9)),
        param('শুক্র, 12 ডিসেম্বর 2014 10:55:50', datetime(2014, 12, 12, 10, 55, 50)),
        param('1লা জানুয়ারী 2015', datetime(2015, 1, 1)),
        param('25শে মার্চ 1971', datetime(1971, 3, 25)),
        param('8ই মে 2002', datetime(2002, 5, 8)),
        param('10:06am ডিসেম্বর 11, 2014', datetime(2014, 12, 11, 10, 6)),
        param('19 ফেব্রুয়ারী 2013 সাল 09:10', datetime(2013, 2, 19, 9, 10)),
        # Hindi dates
        param('11 जुलाई 1994, 11:12', datetime(1994, 7, 11, 11, 12)),
        param('१७ अक्टूबर २०१८', datetime(2018, 10, 17, 0, 0)),
        param('12 जनवरी  1997 11:08 अपराह्न', datetime(1997, 1, 12, 23, 8)),
        # Georgian dates
        param('2011 წლის 17 მარტი, ოთხშაბათი', datetime(2011, 3, 17, 0, 0)),
        param('2015 წ. 12 ივნ, 15:34', datetime(2015, 6, 12, 15, 34)),
        # Finnish dates
        param('5.7.2018 5.45 ip.', datetime(2018, 7, 5, 17, 45))
    ])
    def test_dates_parsing(self, date_string, expected):
        self.given_parser(settings={'NORMALIZE': False,
                                    'RELATIVE_BASE': datetime(2012, 11, 13)})
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_period_is('day')
        self.then_date_obj_exactly_is(expected)

    @parameterized.expand([
        param('2016020417:10', datetime(2016, 2, 4, 17, 10)),
    ])
    def test_dates_parsing_no_spaces(self, date_string, expected):
        self.given_parser(settings={'NORMALIZE': False,
                                    'RELATIVE_BASE': datetime(2012, 11, 13),
                                    'PARSERS': ['no-spaces-time']})
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_period_is('day')
        self.then_date_obj_exactly_is(expected)

    def test_stringified_datetime_should_parse_fine(self):
        expected_date = datetime(2012, 11, 13, 10, 15, 5, 330256)
        self.given_parser(settings={'RELATIVE_BASE': expected_date})
        date_string = str(self.parser.get_date_data('today')['date_obj'])
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_period_is('day')
        self.then_date_obj_exactly_is(expected_date)

    @parameterized.expand([
        # English dates
        param('[Sept] 04, 2014.', datetime(2014, 9, 4)),
        param('Tuesday Jul 22, 2014', datetime(2014, 7, 22)),
        param('10:04am', datetime(2012, 11, 13, 10, 4)),
        param('Friday', datetime(2012, 11, 9)),
        param('November 19, 2014 at noon', datetime(2014, 11, 19, 12, 0)),
        param('December 13, 2014 at midnight', datetime(2014, 12, 13, 0, 0)),
        param('Nov 25 2014 10:17 pm', datetime(2014, 11, 25, 22, 17)),
        param('Wed Aug 05 12:00:00 2015', datetime(2015, 8, 5, 12, 0)),
        param('April 9, 2013 at 6:11 a.m.', datetime(2013, 4, 9, 6, 11)),
        param('Aug. 9, 2012 at 2:57 p.m.', datetime(2012, 8, 9, 14, 57)),
        param('December 10, 2014, 11:02:21 pm', datetime(2014, 12, 10, 23, 2, 21)),
        param('8:25 a.m. Dec. 12, 2014', datetime(2014, 12, 12, 8, 25)),
        param('2:21 p.m., December 11, 2014', datetime(2014, 12, 11, 14, 21)),
        param('Fri, 12 Dec 2014 10:55:50', datetime(2014, 12, 12, 10, 55, 50)),
        param('20 Mar 2013 10h11', datetime(2013, 3, 20, 10, 11)),
        param('10:06am Dec 11, 2014', datetime(2014, 12, 11, 10, 6)),
        param('19 February 2013 year 09:10', datetime(2013, 2, 19, 9, 10)),
        # French dates
        param('11 Mai 2014', datetime(2014, 5, 11)),
        param('dimanche, 11 Mai 2014', datetime(2014, 5, 11)),
        param('22 janvier 2015 à 14h40', datetime(2015, 1, 22, 14, 40)),  # wrong
        param('Dimanche 1er Février à 21:24', datetime(2012, 2, 1, 21, 24)),
        param('vendredi, décembre 5 2014.', datetime(2014, 12, 5, 0, 0)),
        param('le 08 Déc 2014 15:11', datetime(2014, 12, 8, 15, 11)),
        param('Le 11 Décembre 2014 à 09:00', datetime(2014, 12, 11, 9, 0)),
        param('fév 15, 2013', datetime(2013, 2, 15, 0, 0)),
        param('Jeu 15:12', datetime(2012, 11, 8, 15, 12)),
        # Spanish dates
        param('Martes 21 de Octubre de 2014', datetime(2014, 10, 21)),
        param('Miércoles 20 de Noviembre de 2013', datetime(2013, 11, 20)),
        param('12 de junio del 2012', datetime(2012, 6, 12)),
        param('13 Ago, 2014', datetime(2014, 8, 13)),
        param('13 Septiembre, 2014', datetime(2014, 9, 13)),
        param('11 Marzo, 2014', datetime(2014, 3, 11)),
        param('julio 5, 2015 en 1:04 pm', datetime(2015, 7, 5, 13, 4)),
        param('Vi 17:15', datetime(2012, 11, 9, 17, 15)),
        # Dutch dates
        param('11 augustus 2014', datetime(2014, 8, 11)),
        param('14 januari 2014', datetime(2014, 1, 14)),
        param('vr jan 24, 2014 12:49', datetime(2014, 1, 24, 12, 49)),
        # Italian dates
        param('16 giu 2014', datetime(2014, 6, 16)),
        param('26 gennaio 2014', datetime(2014, 1, 26)),
        param('Ven 18:23', datetime(2012, 11, 9, 18, 23)),
        # Portuguese dates
        param('sexta-feira, 10 de junho de 2014 14:52', datetime(2014, 6, 10, 14, 52)),
        param('13 Setembro, 2014', datetime(2014, 9, 13)),
        param('Sab 3:03', datetime(2012, 11, 10, 3, 3)),
        # Russian dates
        param('10 мая', datetime(2012, 5, 10)),  # forum.codenet.ru
        param('26 апреля', datetime(2012, 4, 26)),
        param('20 ноября 2013', datetime(2013, 11, 20)),
        param('28 октября 2014 в 07:54', datetime(2014, 10, 28, 7, 54)),
        param('13 января 2015 г. в 13:34', datetime(2015, 1, 13, 13, 34)),
        param('09 августа 2012', datetime(2012, 8, 9, 0, 0)),
        param('Авг 26, 2015 15:12', datetime(2015, 8, 26, 15, 12)),
        param('2 Декабрь 95 11:15', datetime(1995, 12, 2, 11, 15)),
        param('13 янв. 2005 19:13', datetime(2005, 1, 13, 19, 13)),
        param('13 авг. 2005 19:13', datetime(2005, 8, 13, 19, 13)),
        param('13 авг. 2005г. 19:13', datetime(2005, 8, 13, 19, 13)),
        param('13 авг. 2005 г. 19:13', datetime(2005, 8, 13, 19, 13)),
        # Turkish dates
        param('11 Ağustos, 2014', datetime(2014, 8, 11)),
        param('08.Haziran.2014, 11:07', datetime(2014, 6, 8, 11, 7)),  # forum.andronova.net
        param('17.Şubat.2014, 17:51', datetime(2014, 2, 17, 17, 51)),
        param('14-Aralık-2012, 20:56', datetime(2012, 12, 14, 20, 56)),  # forum.ceviz.net
        # Romanian dates
        param('13 iunie 2013', datetime(2013, 6, 13)),
        param('14 aprilie 2014', datetime(2014, 4, 14)),
        param('18 martie 2012', datetime(2012, 3, 18)),
        param('S 14:14', datetime(2012, 11, 10, 14, 14)),
        param('12-Iun-2013', datetime(2013, 6, 12)),
        # German dates
        param('21. Dezember 2013', datetime(2013, 12, 21)),
        param('19. Februar 2012', datetime(2012, 2, 19)),
        param('26. Juli 2014', datetime(2014, 7, 26)),
        param('18.10.14 um 22:56 Uhr', datetime(2014, 10, 18, 22, 56)),
        param('12-Mär-2014', datetime(2014, 3, 12)),
        param('Mit 13:14', datetime(2012, 11, 7, 13, 14)),
        # Czech dates
        param('pon 16. čer 2014 10:07:43', datetime(2014, 6, 16, 10, 7, 43)),
        param('13 Srpen, 2014', datetime(2014, 8, 13)),
        param('čtv 14. lis 2013 12:38:43', datetime(2013, 11, 14, 12, 38, 43)),
        # Thai dates
        param('ธันวาคม 11, 2014, 08:55:08 PM', datetime(2014, 12, 11, 20, 55, 8)),
        param('22 พฤษภาคม 2012, 22:12', datetime(2012, 5, 22, 22, 12)),
        param('11 กุมภา 2020, 8:13 AM', datetime(2020, 2, 11, 8, 13)),
        param('1 เดือนตุลาคม 2005, 1:00 AM', datetime(2005, 10, 1, 1, 0)),
        param('11 ก.พ. 2020, 1:13 pm', datetime(2020, 2, 11, 13, 13)),
        # Vietnamese dates
        param('Thứ năm', datetime(2012, 11, 8)),  # Thursday
        param('Thứ sáu', datetime(2012, 11, 9)),  # Friday
        param('Tháng Mười Hai 29, 2013, 14:14', datetime(2013, 12, 29, 14, 14)),  # bpsosrcs.wordpress.com  # NOQA
        param('05 Tháng một 2015 - 03:54 AM', datetime(2015, 1, 5, 3, 54)),
        # Belarusian dates
        param('11 траўня', datetime(2012, 5, 11)),
        param('4 мая', datetime(2012, 5, 4)),
        param('Чацвер 06 жніўня 2015', datetime(2015, 8, 6)),
        param('Нд 14 сакавіка 2015 у 7 гадзін 10 хвілін', datetime(2015, 3, 14, 7, 10)),
        param('5 жніўня 2015 года у 13:34', datetime(2015, 8, 5, 13, 34)),
        # Ukrainian dates
        param('2015-кві-12', datetime(2015, 4, 12)),
        param('21 чер 2013 3:13', datetime(2013, 6, 21, 3, 13)),
        param('12 лютого 2012, 13:12:23', datetime(2012, 2, 12, 13, 12, 23)),
        param('вів о 14:04', datetime(2012, 11, 13, 14, 4)),
        # Filipino dates
        param('12 Hulyo 2003 13:01', datetime(2003, 7, 12, 13, 1)),
        param('1978, 1 Peb, 7:05 PM', datetime(1978, 2, 1, 19, 5)),
        param('2 hun', datetime(2012, 6, 2)),
        param('Lin 16:16', datetime(2012, 11, 11, 16, 16)),
        # Japanese dates
        param('2016年3月20日(日) 21時40分', datetime(2016, 3, 20, 21, 40)),
        param("2016年3月20日 21時40分", datetime(2016, 3, 20, 21, 40)),
        # Bangla dates
        param('[সেপ্টেম্বর] 04, 2014.', datetime(2014, 9, 4)),
        param('মঙ্গলবার জুলাই 22, 2014', datetime(2014, 7, 22)),
        param('শুক্রবার', datetime(2012, 11, 9)),
        param('শুক্র, 12 ডিসেম্বর 2014 10:55:50', datetime(2014, 12, 12, 10, 55, 50)),
        param('1লা জানুয়ারী 2015', datetime(2015, 1, 1)),
        param('25শে মার্চ 1971', datetime(1971, 3, 25)),
        param('8ই মে 2002', datetime(2002, 5, 8)),
        param('10:06am ডিসেম্বর 11, 2014', datetime(2014, 12, 11, 10, 6)),
        param('19 ফেব্রুয়ারী 2013 সাল 09:10', datetime(2013, 2, 19, 9, 10)),
        # Numeric dates
        param('06-17-2014', datetime(2014, 6, 17)),
        param('13/03/2014', datetime(2014, 3, 13)),
        param('11. 12. 2014, 08:45:39', datetime(2014, 11, 12, 8, 45, 39)),
        # Miscellaneous dates
        param('1 Ni 2015', datetime(2015, 4, 1, 0, 0)),
        param('1 Mar 2015', datetime(2015, 3, 1, 0, 0)),
        param('1 сер 2015', datetime(2015, 8, 1, 0, 0)),
        # Bulgarian
        param('24 ян 2015г.', datetime(2015, 1, 24, 0, 0)),
        # Hindi dates
        param('बुधवार 24 मई 1997 12:09', datetime(1997, 5, 24, 12, 9)),
        param('28 दिसम्बर 2000 , 01:09:08', datetime(2000, 12, 28, 1, 9, 8)),
        param('१६ दिसम्बर १९७१', datetime(1971, 12, 16, 0, 0)),
        param('सन् 1989 11 फ़रवरी 09:43', datetime(1989, 2, 11, 9, 43)),
    ])
    def test_dates_parsing_with_normalization(self, date_string, expected):
        self.given_local_tz_offset(0)
        self.given_parser(settings={'NORMALIZE': True,
                                    'RELATIVE_BASE': datetime(2012, 11, 13)})
        self.when_date_is_parsed(normalize_unicode(date_string))
        self.then_date_was_parsed_by_date_parser()
        self.then_period_is('day')
        self.then_date_obj_exactly_is(expected)

    @parameterized.expand([
        param('Sep 03 2014 | 4:32 pm EDT', datetime(2014, 9, 3, 20, 32)),
        param('17th October, 2034 @ 01:08 am PDT', datetime(2034, 10, 17, 8, 8)),
        param('15 May 2004 23:24 EDT', datetime(2004, 5, 16, 3, 24)),
        param('08/17/14 17:00 (PDT)', datetime(2014, 8, 18, 0, 0)),
    ])
    def test_parsing_with_time_zones_and_converting_to_UTC(self, date_string, expected):
        self.given_parser(settings={'TO_TIMEZONE': 'UTC'})
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_period_is('day')
        self.then_timezone_parsed_is('UTC')
        self.then_date_obj_exactly_is(expected)

    @parameterized.expand([
        param('Sep 03 2014 | 4:32 pm EDT', 'EDT', datetime(2014, 9, 3, 16, 32)),
        param('17th October, 2034 @ 01:08 am PDT', 'PDT', datetime(2034, 10, 17, 1, 8)),
        param('15 May 2004 23:24 EDT', 'EDT', datetime(2004, 5, 15, 23, 24)),
        param('08/17/14 17:00 (PDT)', 'PDT', datetime(2014, 8, 17, 17, 0)),
        param('15 May 2004 16:10 -0400', '-04:00', datetime(2004, 5, 15, 16, 10)),
        param('1999-12-31 19:00:00 -0500', '-05:00', datetime(1999, 12, 31, 19, 0)),
        param('1999-12-31 19:00:00 +0500', '+05:00', datetime(1999, 12, 31, 19, 0)),
        param('Fri, 09 Sep 2005 13:51:39 -0700', '-07:00', datetime(2005, 9, 9, 13, 51, 39)),
        param('Fri, 09 Sep 2005 13:51:39 +0000', '+00:00', datetime(2005, 9, 9, 13, 51, 39)),
        param('Mon, 25 Jun 2018 10:37:47 +0530 ', '+05:30', datetime(2018, 6, 25, 10, 37, 47)),  # Trailing space
    ])
    def test_dateparser_should_return_tzaware_date_when_tz_info_present_in_date_string(
            self, date_string, timezone_str, expected):
        self.given_parser()
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_period_is('day')
        self.then_timezone_parsed_is(timezone_str)
        self.then_date_obj_exactly_is(expected)

    @parameterized.expand([
        param('15 May 2004 16:10 -0400', 'UTC', datetime(2004, 5, 15, 20, 10)),
        param('1999-12-31 19:00:00 -0500', 'UTC', datetime(2000, 1, 1, 0, 0)),
        param('1999-12-31 19:00:00 +0500', 'UTC', datetime(1999, 12, 31, 14, 0)),
        param('Fri, 09 Sep 2005 13:51:39 -0700', 'GMT', datetime(2005, 9, 9, 20, 51, 39)),
        param('Fri, 09 Sep 2005 13:51:39 +0000', 'GMT', datetime(2005, 9, 9, 13, 51, 39)),
    ])
    def test_dateparser_should_return_date_in_setting_timezone_if_timezone_info_present_in_datestring_and_in_settings(
        self, date_string, setting_timezone, expected
    ):
        self.given_parser(settings={'TIMEZONE': setting_timezone})
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_period_is('day')
        self.then_timezone_parsed_is(setting_timezone)
        self.then_date_obj_exactly_is(expected)

    @parameterized.expand([
        param('15 May 2004 16:10 -0400', datetime(2004, 5, 15, 20, 10)),
        param('1999-12-31 19:00:00 -0500', datetime(2000, 1, 1, 0, 0)),
        param('1999-12-31 19:00:00 +0500', datetime(1999, 12, 31, 14, 0)),
        param('Fri, 09 Sep 2005 13:51:39 -0700', datetime(2005, 9, 9, 20, 51, 39)),
        param('Fri, 09 Sep 2005 13:51:39 +0000', datetime(2005, 9, 9, 13, 51, 39)),
        param('Fri Sep 23 2016 10:34:51 GMT+0800 (CST)', datetime(2016, 9, 23, 2, 34, 51)),
    ])
    def test_parsing_with_utc_offsets(self, date_string, expected):
        self.given_parser(settings={'TO_TIMEZONE': 'utc'})
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_period_is('day')
        self.then_timezone_parsed_is('UTC')
        self.then_date_obj_exactly_is(expected)

    def test_empty_dates_string_is_not_parsed(self):
        self.when_date_is_parsed_by_date_parser('')
        self.then_error_was_raised(ValueError, ["Empty string"])

    @parameterized.expand([
        param('invalid date string', 'Unable to parse: invalid'),
        param('Aug 7, 2014Aug 7, 2014', 'Unable to parse: Aug'),
        param('24h ago', 'Unable to parse: h'),
        param('2015-03-17t16:37:51+00:002015-03-17t15:24:37+00:00', 'Unable to parse: 00:002015'),
        param('8 enero 2013 martes 7:03 AM EST 8 enero 2013 martes 7:03 AM EST', 'Unable to parse: 8'),
        param('12/09/18567', 'Unable to parse: 18567'),
    ])
    def test_dates_not_parsed(self, date_string, message):
        self.when_date_is_parsed_by_date_parser(date_string)
        self.then_error_was_raised(ValueError, message)

    @parameterized.expand([
        param('10 December', datetime(2014, 12, 10)),
        param('March', datetime(2014, 3, 15)),
        param('Friday', datetime(2015, 2, 13)),
        param('Monday', datetime(2015, 2, 9)),
        param('Sunday', datetime(2015, 2, 8)),  # current day
        param('10:00PM', datetime(2015, 2, 14, 22, 0)),
        param('16:10', datetime(2015, 2, 14, 16, 10)),
        param('14:05', datetime(2015, 2, 15, 14, 5)),
        param('15 february 15:00', datetime(2015, 2, 15, 15, 0)),
        param('3/3/50', datetime(1950, 3, 3)),
        param('3/3/94', datetime(1994, 3, 3)),
    ])
    def test_preferably_past_dates(self, date_string, expected):
        self.given_parser(settings={'PREFER_DATES_FROM': 'past',
                          'RELATIVE_BASE': datetime(2015, 2, 15, 15, 30)})
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_date_obj_exactly_is(expected)

    @parameterized.expand([
        param('10 December', datetime(2015, 12, 10)),
        param('March', datetime(2015, 3, 15)),
        param('Friday', datetime(2015, 2, 20)),
        param('Sunday', datetime(2015, 2, 22)),  # current day
        param('Monday', datetime(2015, 2, 16)),
        param('10:00PM', datetime(2015, 2, 15, 22, 0)),
        param('16:10', datetime(2015, 2, 15, 16, 10)),
        param('14:05', datetime(2015, 2, 16, 14, 5)),
        param('3/3/50', datetime(2050, 3, 3)),
        param('3/3/94', datetime(2094, 3, 3)),
    ])
    def test_preferably_future_dates(self, date_string, expected):
        self.given_local_tz_offset(0)
        self.given_parser(settings={'PREFER_DATES_FROM': 'future',
                          'RELATIVE_BASE': datetime(2015, 2, 15, 15, 30)})
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_date_obj_exactly_is(expected)

    @parameterized.expand([
        param('10 December', datetime(2015, 12, 10)),
        param('March', datetime(2015, 3, 15)),
        param('Friday', datetime(2015, 2, 13)),
        param('Sunday', datetime(2015, 2, 15)),  # current weekday
        param('10:00PM', datetime(2015, 2, 15, 22, 00)),
        param('16:10', datetime(2015, 2, 15, 16, 10)),
        param('14:05', datetime(2015, 2, 15, 14, 5)),
    ])
    def test_dates_without_preference(self, date_string, expected):
        self.given_local_tz_offset(0)
        self.given_parser(settings={'PREFER_DATES_FROM': 'current_period',
                          'RELATIVE_BASE': datetime(2015, 2, 15, 15, 30)})
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_date_obj_exactly_is(expected)

    @parameterized.expand([
        param('29 Feb', datetime(2020, 1, 1), datetime(2016, 2, 29)),
        param('29/02', datetime(2020, 3, 30), datetime(2020, 2, 29)),
        param('02/29', datetime(1702, 1, 1), datetime(1696, 2, 29)),
    ])
    def test_preferably_past_dates_leap_year(self, date_string, relative_base, expected):
        self.given_parser(settings={'PREFER_DATES_FROM': 'past',
                          'RELATIVE_BASE': relative_base})
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_date_obj_exactly_is(expected)

    @parameterized.expand([
        param('29 Feb', datetime(2020, 1, 1), datetime(2020, 2, 29)),
        param('29/02', datetime(2020, 3, 30), datetime(2024, 2, 29)),
        param('02/29', datetime(1696, 3, 1), datetime(1704, 2, 29)),
    ])
    def test_preferably_future_dates_leap_year(self, date_string, relative_base, expected):
        self.given_parser(settings={'PREFER_DATES_FROM': 'future',
                                    'RELATIVE_BASE': relative_base})
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_date_obj_exactly_is(expected)

    @parameterized.expand([
        param('29 Feb', datetime(2020, 1, 1), datetime(2020, 2, 29)),
        param('29/02', datetime(2020, 3, 30), datetime(2020, 2, 29)),
        param('29 Feb', datetime(1702, 3, 1), datetime(1704, 2, 29)),
        param('02/29', datetime(1699, 3, 1), datetime(1696, 2, 29)),
    ])
    def test_dates_without_preference_leap_year(self, date_string, relative_base, expected):
        self.given_local_tz_offset(0)
        self.given_parser(settings={'PREFER_DATES_FROM': 'current_period',
                                    'RELATIVE_BASE': relative_base})
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_date_obj_exactly_is(expected)

    @parameterized.expand([
        param('February 2015', today=datetime(2015, 1, 31), expected=datetime(2015, 2, 28)),
        param('February 2012', today=datetime(2015, 1, 31), expected=datetime(2012, 2, 29)),
        param('March 2015', today=datetime(2015, 1, 25), expected=datetime(2015, 3, 25)),
        param('April 2015', today=datetime(2015, 1, 31), expected=datetime(2015, 4, 30)),
        param('April 2015', today=datetime(2015, 2, 28), expected=datetime(2015, 4, 28)),
        param('December 2014', today=datetime(2015, 2, 15), expected=datetime(2014, 12, 15)),
    ])
    def test_dates_with_day_missing_preferring_current_day_of_month(
            self, date_string, today=None, expected=None):
        self.given_parser(settings={'PREFER_DAY_OF_MONTH': 'current', 'RELATIVE_BASE': today})
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_date_obj_exactly_is(expected)

    @parameterized.expand([
        param('February 2015', today=datetime(2015, 1, 1), expected=datetime(2015, 2, 28)),
        param('February 2012', today=datetime(2015, 1, 1), expected=datetime(2012, 2, 29)),
        param('March 2015', today=datetime(2015, 1, 25), expected=datetime(2015, 3, 31)),
        param('April 2015', today=datetime(2015, 1, 15), expected=datetime(2015, 4, 30)),
        param('April 2015', today=datetime(2015, 2, 28), expected=datetime(2015, 4, 30)),
        param('December 2014', today=datetime(2015, 2, 15), expected=datetime(2014, 12, 31)),
    ])
    def test_dates_with_day_missing_preferring_last_day_of_month(
            self, date_string, today=None, expected=None):
        self.given_parser(settings={'PREFER_DAY_OF_MONTH': 'last', 'RELATIVE_BASE': today})
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_date_obj_exactly_is(expected)

    @parameterized.expand([
        param('February 2015', today=datetime(2015, 1, 8), expected=datetime(2015, 2, 1)),
        param('February 2012', today=datetime(2015, 1, 7), expected=datetime(2012, 2, 1)),
        param('March 2015', today=datetime(2015, 1, 25), expected=datetime(2015, 3, 1)),
        param('April 2015', today=datetime(2015, 1, 15), expected=datetime(2015, 4, 1)),
        param('April 2015', today=datetime(2015, 2, 28), expected=datetime(2015, 4, 1)),
        param('December 2014', today=datetime(2015, 2, 15), expected=datetime(2014, 12, 1)),
    ])
    def test_dates_with_day_missing_preferring_first_day_of_month(
            self, date_string, today=None, expected=None):
        self.given_parser(settings={'PREFER_DAY_OF_MONTH': 'first', 'RELATIVE_BASE': today})
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_date_obj_exactly_is(expected)

    @parameterized.expand([
        param(prefer_day_of_month='current'),
        param(prefer_day_of_month='last'),
        param(prefer_day_of_month='first'),
    ])
    def test_that_day_preference_does_not_affect_dates_with_explicit_day(
            self, prefer_day_of_month=None):
        self.given_parser(settings={'PREFER_DAY_OF_MONTH': prefer_day_of_month,
                          'RELATIVE_BASE': datetime(2015, 2, 12)})
        self.when_date_is_parsed('24 April 2012')
        self.then_date_was_parsed_by_date_parser()
        self.then_date_obj_exactly_is(datetime(2012, 4, 24))

    def test_date_is_parsed_when_skip_tokens_are_supplied(self):
        self.given_parser(settings={'SKIP_TOKENS': ['de'], 'RELATIVE_BASE': datetime(2015, 2, 12)})
        self.when_date_is_parsed('24 April 2012 de')
        self.then_date_was_parsed_by_date_parser()
        self.then_date_obj_exactly_is(datetime(2012, 4, 24))

    @parameterized.expand([
        param('29 February 2015', 'day must be in 1..28'),
        param('32 January 2015', 'day must be in 1..31'),
        param('31 April 2015', 'day must be in 1..30'),
        param('31 June 2015', 'day must be in 1..30'),
        param('31 September 2015', 'day must be in 1..30'),
    ])
    def test_error_should_be_raised_for_invalid_dates_with_too_large_day_number(self, date_string, message):
        self.when_date_is_parsed_by_date_parser(date_string)
        self.then_error_was_raised(ValueError, ['day is out of range for month', message])

    @parameterized.expand([
        param('2015-05-02T10:20:19+0000', languages=['fr'],
              expected=datetime(2015, 5, 2, 10, 20, 19)),
        param('2015-05-02T10:20:19+0000', languages=['en'],
              expected=datetime(2015, 5, 2, 10, 20, 19)),
    ])
    def test_iso_datestamp_format_should_always_parse(self, date_string, languages, expected):
        self.given_local_tz_offset(0)
        self.given_parser(languages=languages, settings={'PREFER_LOCALE_DATE_ORDER': False})
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.result['date_obj'] = self.result['date_obj'].replace(tzinfo=None)
        self.then_date_obj_exactly_is(expected)

    @parameterized.expand([
        # Epoch timestamps.
        param('1484823450', expected=datetime(2017, 1, 19, 10, 57, 30)),
        param('1436745600000', expected=datetime(2015, 7, 13, 0, 0)),
        param('1015673450', expected=datetime(2002, 3, 9, 11, 30, 50)),
        param('2016-09-23T02:54:32.845Z', expected=datetime(2016, 9, 23, 2, 54, 32, 845000,
              tzinfo=StaticTzInfo('Z', timedelta(0))))
    ])
    def test_parse_timestamp(self, date_string, expected):
        self.given_local_tz_offset(0)
        self.given_parser(settings={'TO_TIMEZONE': 'UTC'})
        self.when_date_is_parsed(date_string)
        self.then_date_obj_exactly_is(expected)
        self.then_period_is('day')

    @parameterized.expand([
        # Epoch timestamps.
        param('1484823450', expected=datetime(2017, 1, 19, 10, 57, 30)),
        param('1436745600000', expected=datetime(2015, 7, 13, 0, 0)),
        param('1015673450', expected=datetime(2002, 3, 9, 11, 30, 50)),
        param('2016-09-23T02:54:32.845Z', expected=datetime(2016, 9, 23, 2, 54, 32, 845000,
              tzinfo=StaticTzInfo('Z', timedelta(0))))
    ])
    def test_parse_timestamp_with_time_as_period(self, date_string, expected):
        self.given_local_tz_offset(0)
        self.given_parser(settings={'TO_TIMEZONE': 'UTC', 'RETURN_TIME_AS_PERIOD': True})
        self.when_date_is_parsed(date_string)
        self.then_date_obj_exactly_is(expected)
        self.then_period_is('time')

    @parameterized.expand([
        param('10 December', expected=datetime(2015, 12, 10), period='day'),
        param('March', expected=datetime(2015, 3, 15), period='month'),
        param('April', expected=datetime(2015, 4, 15), period='month'),
        param('December', expected=datetime(2015, 12, 15), period='month'),
        param('Friday', expected=datetime(2015, 2, 13), period='day'),
        param('Monday', expected=datetime(2015, 2, 9), period='day'),
        param('10:00PM', expected=datetime(2015, 2, 15, 22, 00), period='day'),
        param('16:10', expected=datetime(2015, 2, 15, 16, 10), period='day'),
        param('2014', expected=datetime(2014, 2, 15), period='year'),
        param('2008', expected=datetime(2008, 2, 15), period='year'),
        # subscript and superscript dates
        param('²⁰¹⁵', expected=datetime(2015, 2, 15), period='year'),
        param('²⁹/⁰⁵/²⁰¹⁵', expected=datetime(2015, 5, 29), period='day'),
        param('₁₅/₀₂/₂₀₂₀', expected=datetime(2020, 2, 15), period='day'),
        param('₃₁ December', expected=datetime(2015, 12, 31), period='day'),
    ])
    def test_extracted_period(self, date_string, expected=None, period=None):
        self.given_local_tz_offset(0)
        self.given_parser(settings={'RELATIVE_BASE': datetime(2015, 2, 15, 15, 30)})
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_date_obj_exactly_is(expected)
        self.then_period_is(period)

    @parameterized.expand([
        param('12th December 2019 19:00', expected=datetime(2019, 12, 12, 19, 0), period='time'),
        param('9 Jan 11 0:00', expected=datetime(2011, 1, 9, 0, 0), period='time'),
    ])
    def test_period_is_time_if_return_time_as_period_setting_applied_and_time_component_present(
        self, date_string, expected=None, period=None
    ):
        self.given_parser(settings={'RETURN_TIME_AS_PERIOD': True})
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_date_obj_exactly_is(expected)
        self.then_period_is(period)

    @parameterized.expand([
        param('16:00', expected=datetime(2018, 12, 13, 16, 0), period='time'),
        param('Monday 7:15 AM', expected=datetime(2018, 12, 10, 7, 15), period='time'),
    ])
    def test_period_is_time_if_return_time_as_period_and_relative_base_settings_applied_and_time_component_present(
        self, date_string, expected=None, period=None
    ):
        self.given_parser(settings={'RETURN_TIME_AS_PERIOD': True,
                                    'RELATIVE_BASE': datetime(2018, 12, 13, 15, 15)})
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_date_obj_exactly_is(expected)
        self.then_period_is(period)

    @parameterized.expand([
        param('12th March 2010', expected=datetime(2010, 3, 12, 0, 0), period='day'),
        param('21-12-19', expected=datetime(2019, 12, 21, 0, 0), period='day'),
    ])
    def test_period_is_day_if_return_time_as_period_setting_applied_and_time_component_is_not_present(
        self, date_string, expected=None, period=None
    ):
        self.given_parser(settings={'RETURN_TIME_AS_PERIOD': True})
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_date_obj_exactly_is(expected)
        self.then_period_is(period)

    @parameterized.expand([
        param('16:00', expected=datetime(2017, 1, 10, 16, 0), period='day'),
        param('Monday 7:15 AM', expected=datetime(2017, 1, 9, 7, 15), period='day'),
    ])
    def test_period_is_day_if_return_time_as_period_setting_not_applied(
        self, date_string, expected=None, period=None
    ):
        self.given_parser(settings={'RETURN_TIME_AS_PERIOD': False,
                                    'RELATIVE_BASE': datetime(2017, 1, 10, 15, 15)})
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_date_obj_exactly_is(expected)
        self.then_period_is(period)

    @parameterized.expand([
        param('15-12-18 06:00', expected=datetime(2015, 12, 18, 6, 0), order='YMD'),
        param('15-18-12 06:00', expected=datetime(2015, 12, 18, 6, 0), order='YDM'),
        param('10-11-12 06:00', expected=datetime(2012, 10, 11, 6, 0), order='MDY'),
        param('10-11-12 06:00', expected=datetime(2011, 10, 12, 6, 0), order='MYD'),
        param('10-11-12 06:00', expected=datetime(2011, 12, 10, 6, 0), order='DYM'),
        param('15-12-18 06:00', expected=datetime(2018, 12, 15, 6, 0), order='DMY'),
        param('12/09/08 04:23:15.567', expected=datetime(2008, 9, 12, 4, 23, 15, 567000),
              order='DMY'),
        param('10/9/1914 03:07:09.788888 pm', expected=datetime(1914, 10, 9, 15, 7, 9, 788888),
              order='MDY'),
        param('1-8-09 07:12:49 AM', expected=datetime(2009, 1, 8, 7, 12, 49), order='MDY'),
        param('2016 july 13.', expected=datetime(2016, 7, 13, 0, 0), order='YMD'),
        param('16 july 13.', expected=datetime(2016, 7, 13, 0, 0), order='YMD'),
        param('Sunday 23 May 1856 12:09:08 AM', expected=datetime(1856, 5, 23, 0, 9, 8),
              order='DMY'),
    ])
    def test_order(self, date_string, expected=None, order=None):
        self.given_parser(settings={'DATE_ORDER': order})
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_date_obj_exactly_is(expected)

    @parameterized.expand([
        param('201508', expected=datetime(2015, 8, 20, 0, 0), order='DYM'),
        param('201508', expected=datetime(2020, 8, 15, 0, 0), order='YDM'),
        param('201108', expected=datetime(2008, 11, 20, 0, 0), order='DMY'),
    ])
    def test_order_no_spaces(self, date_string, expected=None, order=None):
        self.given_parser(settings={'DATE_ORDER': order, 'PARSERS': ['no-spaces-time']})
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_date_obj_exactly_is(expected)

    @parameterized.expand([
        param('10.1.2019', expected=datetime(2019, 1, 10, 0, 0), languages=['de'],
              settings={'PREFER_DAY_OF_MONTH': 'first'}),
        param('10.1.2019', expected=datetime(2019, 1, 10, 0, 0), languages=['de']),
        param('10.1.2019', expected=datetime(2019, 10, 1, 0, 0),
              settings={'DATE_ORDER': 'MDY'}),
        param('03/11/2559 05:13', datetime(2559, 3, 11, 5, 13), languages=["th"],
              settings={"DATE_ORDER": "MDY"}),
        param('03/15/2559 05:13', datetime(2559, 3, 15, 5, 13), languages=["th"],
              settings={"DATE_ORDER": "MDY"})
    ])
    def test_if_settings_provided_date_order_is_retained(
        self, date_string, expected=None, languages=None, settings=None
    ):
        self.given_parser(languages=languages, settings=settings)
        self.when_date_is_parsed(date_string)
        self.then_date_was_parsed_by_date_parser()
        self.then_date_obj_exactly_is(expected)

    @parameterized.expand([
        param('::', None),
        param('..', None),
        param('  ', None),
        param('--', None),
        param('//', None),
        param('++', None),
    ])
    def test_parsing_strings_containing_only_separator_tokens(self, date_string, expected):
        self.given_parser()
        self.when_date_is_parsed(date_string)
        self.then_period_is('day')
        self.then_date_obj_exactly_is(expected)

    def given_local_tz_offset(self, offset):
        self.add_patch(
            patch.object(dateparser.timezone_parser,
                         'local_tz_offset',
                         new=timedelta(seconds=3600 * offset))
        )

    def given_parser(self, *args, **kwds):
        def collecting_get_date_data(parse):
            @wraps(parse)
            def wrapped(*args, **kwargs):
                self.date_result = parse(*args, **kwargs)
                return self.date_result
            return wrapped

        self.add_patch(patch.object(date_parser,
                                    'parse',
                                    collecting_get_date_data(date_parser.parse)))

        self.date_parser = Mock(wraps=date_parser)
        self.add_patch(patch('dateparser.date.date_parser', new=self.date_parser))
        self.parser = DateDataParser(*args, **kwds)

    def when_date_is_parsed(self, date_string):
        self.result = self.parser.get_date_data(date_string)

    def when_date_is_parsed_by_date_parser(self, date_string):
        try:
            self.result = DateParser().parse(date_string, parse_method=_parse_absolute)
        except Exception as error:
            self.error = error

    def then_period_is(self, period):
        self.assertEqual(period, self.result['period'])

    def then_date_obj_exactly_is(self, expected):
        self.assertEqual(expected, self.result['date_obj'])

    def then_date_was_parsed_by_date_parser(self):
        self.assertNotEqual(NotImplemented, self.date_result, "Date was not parsed")
        self.assertEqual(self.result['date_obj'], self.date_result[0])

    def then_timezone_parsed_is(self, tzstr):
        self.assertTrue(tzstr in repr(self.result['date_obj'].tzinfo))
        self.result['date_obj'] = self.result['date_obj'].replace(tzinfo=None)


if __name__ == '__main__':
    unittest.main()