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from datetime import date, datetime
from parameterized import param, parameterized
from pytz import utc
import dateparser
from tests import BaseTestCase
class TestParseFunction(BaseTestCase):
def setUp(self):
super().setUp()
self.result = NotImplemented
@parameterized.expand(
[
param(date_string="24 de Janeiro de 2014", expected_date=date(2014, 1, 24)),
param(date_string="2 de Enero de 2013", expected_date=date(2013, 1, 2)),
param(date_string="January 25, 2014", expected_date=date(2014, 1, 25)),
]
)
def test_parse_dates_in_different_languages(self, date_string, expected_date):
self.when_date_is_parsed_with_defaults(date_string)
self.then_parsed_date_is(expected_date)
@parameterized.expand(
[
param(
date_string="May 5, 2000 13:00",
expected_date=datetime(2000, 5, 5, 13, 0),
),
param(
date_string="August 8, 2018 5 PM",
expected_date=datetime(2018, 8, 8, 17, 0),
),
param(
date_string="February 26, 1981 5 am UTC",
expected_date=datetime(1981, 2, 26, 5, 0, tzinfo=utc),
),
]
)
def test_parse_dates_with_specific_time(self, date_string, expected_date):
self.when_date_is_parsed_with_defaults(date_string)
self.then_parsed_date_and_time_is(expected_date)
@parameterized.expand(
[
param(
date_string="May 5, 2000 13:00",
expected_date=datetime(2000, 5, 5, 13, 0),
relative=datetime(2000, 1, 1, 0, 0, tzinfo=utc),
),
param(
date_string="August 8, 2018 5 PM",
expected_date=datetime(2018, 8, 8, 17, 0),
relative=datetime(1900, 5, 5, 0, 0, tzinfo=utc),
),
param(
date_string="February 26, 1981 5 am UTC",
expected_date=datetime(1981, 2, 26, 5, 0, tzinfo=utc),
relative=datetime(1981, 2, 26, 5, 0, tzinfo=utc),
),
]
)
def test_parse_dates_with_specific_time_and_settings(
self, date_string, expected_date, relative
):
self.when_date_is_parsed_with_settings(
date_string, settings={"RELATIVE_BASE": relative}
)
self.then_parsed_date_and_time_is(expected_date)
@parameterized.expand(
[
param(
date_string="24 de Janeiro de 2014",
languages=["pt"],
expected_date=date(2014, 1, 24),
),
]
)
def test_dates_which_match_languages_are_parsed(
self, date_string, languages, expected_date
):
self.when_date_is_parsed(date_string, languages=languages)
self.then_parsed_date_is(expected_date)
@parameterized.expand(
[
param(date_string="January 24, 2014", languages=["pt"]),
]
)
def test_dates_which_do_not_match_languages_are_not_parsed(
self, date_string, languages
):
self.when_date_is_parsed(date_string, languages=languages)
self.then_date_was_not_parsed()
@parameterized.expand(
[
param(
date_string="24 de Janeiro de 2014",
locales=["pt-TL"],
expected_date=date(2014, 1, 24),
),
]
)
def test_dates_which_match_locales_are_parsed(
self, date_string, locales, expected_date
):
self.when_date_is_parsed(date_string, locales=locales)
self.then_parsed_date_is(expected_date)
@parameterized.expand(
[
param(
date_string="0:4",
locales=["fr-PF"],
languages=["en"],
region="",
date_formats=["%a", "%a", "%a", "%a"],
expected_date=datetime(1969, 1, 31, 13, 4),
)
]
)
def test_dates_parse_utc_offset_does_not_throw(
self, date_string, locales, languages, region, date_formats, expected_date
):
"""
Bug discovered by OSSFuzz that caused an exception in pytz to halt parsing
Regression test to ensure that this is not reintroduced
"""
self.when_date_is_parsed_with_args_and_settings(
date_string,
languages=languages,
locales=locales,
region=region,
date_formats=date_formats,
settings={
"CACHE_SIZE_LIMIT": 1000,
"DATE_ORDER": "YDM",
"DEFAULT_LANGUAGES": [
"mzn",
"as",
"af",
"fur",
"sr-Cyrl",
"kw",
"ne",
"en",
"vi",
"teo",
"sr",
"cgg",
],
"LANGUAGE_DETECTION_CONFIDENCE_THRESHOLD": 0.18823535008398845,
"NORMALIZE": True,
"PARSERS": ["custom-formats", "absolute-time"],
"PREFER_DATES_FROM": "past",
"PREFER_DAY_OF_MONTH": "first",
"PREFER_LOCALE_DATE_ORDER": True,
"PREFER_MONTH_OF_YEAR": "current",
"RELATIVE_BASE": datetime(
year=1970, month=1, day=1, hour=0, minute=0, second=0
),
"REQUIRE_PARTS": [],
"RETURN_AS_TIMEZONE_AWARE": False,
"RETURN_TIME_AS_PERIOD": False,
"SKIP_TOKENS": [],
"STRICT_PARSING": False,
"TIMEZONE": "America/Hermosillo",
"TO_TIMEZONE": "Asia/Almaty",
},
)
self.then_parsed_date_and_time_is(expected_date)
@parameterized.expand(
[
param(date_string="January 24, 2014", locales=["pt-AO"]),
]
)
def test_dates_which_do_not_match_locales_are_not_parsed(
self, date_string, locales
):
self.when_date_is_parsed(date_string, locales=locales)
self.then_date_was_not_parsed()
def when_date_is_parsed_with_defaults(self, date_string):
self.result = dateparser.parse(date_string)
def when_date_is_parsed(self, date_string, languages=None, locales=None):
self.result = dateparser.parse(
date_string, languages=languages, locales=locales
)
def when_date_is_parsed_with_settings(self, date_string, settings=None):
self.result = dateparser.parse(date_string, settings=settings)
def when_date_is_parsed_with_args_and_settings(
self,
date_string,
languages=None,
locales=None,
region=None,
date_formats=None,
settings=None,
):
self.result = dateparser.parse(
date_string,
languages=languages,
locales=locales,
region=region,
date_formats=date_formats,
settings=settings,
)
def then_parsed_date_is(self, expected_date):
self.assertEqual(
self.result, datetime.combine(expected_date, datetime.min.time())
)
def then_parsed_date_and_time_is(self, expected_date):
self.assertEqual(self.result, expected_date)
def then_date_was_not_parsed(self):
self.assertIsNone(self.result)
|
