mirror of
https://github.com/morpheus65535/bazarr
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870 lines
29 KiB
Python
870 lines
29 KiB
Python
# -*- coding: ascii -*-
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import doctest
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import sys
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import os
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import os.path
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import unittest
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try:
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import cPickle as pickle
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except ImportError:
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import pickle
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from datetime import (
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datetime,
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timedelta
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)
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import warnings
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if __name__ == '__main__':
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# Only munge path if invoked as a script. Testrunners should have setup
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# the paths already
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sys.path.insert(0, os.path.abspath(os.path.join(os.pardir, os.pardir)))
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import pytz # noqa
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from pytz import reference # noqa
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from pytz.tzfile import _byte_string # noqa
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from pytz.tzinfo import DstTzInfo, StaticTzInfo # noqa
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# I test for expected version to ensure the correct version of pytz is
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# actually being tested.
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EXPECTED_VERSION = '2021.1'
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EXPECTED_OLSON_VERSION = '2021a'
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fmt = '%Y-%m-%d %H:%M:%S %Z%z'
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NOTIME = timedelta(0)
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# GMT is a tzinfo.StaticTzInfo--the class we primarily want to test--while
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# UTC is reference implementation. They both have the same timezone meaning.
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UTC = pytz.timezone('UTC')
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GMT = pytz.timezone('GMT')
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assert isinstance(GMT, StaticTzInfo), 'GMT is no longer a StaticTzInfo'
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def prettydt(dt):
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"""datetime as a string using a known format.
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We don't use strftime as it doesn't handle years earlier than 1900
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per http://bugs.python.org/issue1777412
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"""
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if dt.utcoffset() >= timedelta(0):
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offset = '+%s' % (dt.utcoffset(),)
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else:
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offset = '-%s' % (-1 * dt.utcoffset(),)
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return '%04d-%02d-%02d %02d:%02d:%02d %s %s' % (
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dt.year, dt.month, dt.day,
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dt.hour, dt.minute, dt.second,
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dt.tzname(), offset)
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if sys.version_info[0] > 2:
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# Python 3.x doesn't have unicode(), making writing code
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# for Python 2.3 and Python 3.x a pain.
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unicode = str
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class BasicTest(unittest.TestCase):
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def testVersion(self):
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# Ensuring the correct version of pytz has been loaded
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self.assertEqual(
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EXPECTED_VERSION, pytz.__version__,
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'Incorrect pytz version loaded. Import path is stuffed '
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'or this test needs updating. (Wanted %s, got %s)'
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% (EXPECTED_VERSION, pytz.__version__)
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)
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self.assertEqual(
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EXPECTED_OLSON_VERSION, pytz.OLSON_VERSION,
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'Incorrect pytz version loaded. Import path is stuffed '
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'or this test needs updating. (Wanted %s, got %s)'
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% (EXPECTED_OLSON_VERSION, pytz.OLSON_VERSION)
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)
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def testGMT(self):
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now = datetime.now(tz=GMT)
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self.assertTrue(now.utcoffset() == NOTIME)
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self.assertTrue(now.dst() == NOTIME)
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self.assertTrue(now.timetuple() == now.utctimetuple())
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self.assertTrue(now == now.replace(tzinfo=UTC))
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def testReferenceUTC(self):
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now = datetime.now(tz=UTC)
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self.assertTrue(now.utcoffset() == NOTIME)
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self.assertTrue(now.dst() == NOTIME)
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self.assertTrue(now.timetuple() == now.utctimetuple())
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def testUnknownOffsets(self):
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# This tzinfo behavior is required to make
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# datetime.time.{utcoffset, dst, tzname} work as documented.
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dst_tz = pytz.timezone('US/Eastern')
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# This information is not known when we don't have a date,
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# so return None per API.
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self.assertTrue(dst_tz.utcoffset(None) is None)
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self.assertTrue(dst_tz.dst(None) is None)
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# We don't know the abbreviation, but this is still a valid
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# tzname per the Python documentation.
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self.assertEqual(dst_tz.tzname(None), 'US/Eastern')
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def clearCache(self):
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pytz._tzinfo_cache.clear()
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def testUnicodeTimezone(self):
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# We need to ensure that cold lookups work for both Unicode
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# and traditional strings, and that the desired singleton is
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# returned.
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self.clearCache()
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eastern = pytz.timezone(unicode('US/Eastern'))
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self.assertTrue(eastern is pytz.timezone('US/Eastern'))
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self.clearCache()
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eastern = pytz.timezone('US/Eastern')
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self.assertTrue(eastern is pytz.timezone(unicode('US/Eastern')))
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def testStaticTzInfo(self):
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# Ensure that static timezones are correctly detected,
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# per lp:1602807
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static = pytz.timezone('Etc/GMT-4')
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self.assertTrue(isinstance(static, StaticTzInfo))
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class PicklingTest(unittest.TestCase):
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def _roundtrip_tzinfo(self, tz):
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p = pickle.dumps(tz)
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unpickled_tz = pickle.loads(p)
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self.assertTrue(tz is unpickled_tz, '%s did not roundtrip' % tz.zone)
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def _roundtrip_datetime(self, dt):
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# Ensure that the tzinfo attached to a datetime instance
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# is identical to the one returned. This is important for
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# DST timezones, as some state is stored in the tzinfo.
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tz = dt.tzinfo
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p = pickle.dumps(dt)
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unpickled_dt = pickle.loads(p)
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unpickled_tz = unpickled_dt.tzinfo
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self.assertTrue(tz is unpickled_tz, '%s did not roundtrip' % tz.zone)
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def testDst(self):
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tz = pytz.timezone('Europe/Amsterdam')
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dt = datetime(2004, 2, 1, 0, 0, 0)
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for localized_tz in tz._tzinfos.values():
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self._roundtrip_tzinfo(localized_tz)
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self._roundtrip_datetime(dt.replace(tzinfo=localized_tz))
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def testRoundtrip(self):
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for zone in pytz.all_timezones:
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tz = pytz.timezone(zone)
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self._roundtrip_tzinfo(tz)
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def testDatabaseFixes(self):
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# Hack the pickle to make it refer to a timezone abbreviation
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# that does not match anything. The unpickler should be able
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# to repair this case
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tz = pytz.timezone('Australia/Melbourne')
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p = pickle.dumps(tz)
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tzname = tz._tzname
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hacked_p = p.replace(
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_byte_string(tzname),
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_byte_string('?' * len(tzname))
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)
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self.assertNotEqual(p, hacked_p)
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unpickled_tz = pickle.loads(hacked_p)
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self.assertTrue(tz is unpickled_tz)
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# Simulate a database correction. In this case, the incorrect
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# data will continue to be used.
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p = pickle.dumps(tz)
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new_utcoffset = tz._utcoffset.seconds + 42
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# Python 3 introduced a new pickle protocol where numbers are stored in
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# hexadecimal representation. Here we extract the pickle
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# representation of the number for the current Python version.
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#
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# Test protocol 3 on Python 3 and protocol 0 on Python 2.
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if sys.version_info >= (3,):
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protocol = 3
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else:
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protocol = 0
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old_pickle_pattern = pickle.dumps(tz._utcoffset.seconds, protocol)[3:-1]
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new_pickle_pattern = pickle.dumps(new_utcoffset, protocol)[3:-1]
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hacked_p = p.replace(old_pickle_pattern, new_pickle_pattern)
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self.assertNotEqual(p, hacked_p)
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unpickled_tz = pickle.loads(hacked_p)
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self.assertEqual(unpickled_tz._utcoffset.seconds, new_utcoffset)
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self.assertTrue(tz is not unpickled_tz)
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def testOldPickles(self):
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# Ensure that applications serializing pytz instances as pickles
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# have no troubles upgrading to a new pytz release. These pickles
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# where created with pytz2006j
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east1 = pickle.loads(
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_byte_string(
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"cpytz\n_p\np1\n(S'US/Eastern'\np2\nI-18000\n"
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"I0\nS'EST'\np3\ntRp4\n."
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)
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)
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east2 = pytz.timezone('US/Eastern').localize(
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datetime(2006, 1, 1)).tzinfo
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self.assertTrue(east1 is east2)
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# Confirm changes in name munging between 2006j and 2007c cause
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# no problems.
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pap1 = pickle.loads(_byte_string(
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"cpytz\n_p\np1\n(S'America/Port_minus_au_minus_Prince'"
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"\np2\nI-17340\nI0\nS'PPMT'\np3\ntRp4\n."))
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pap2 = pytz.timezone('America/Port-au-Prince').localize(
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datetime(1910, 1, 1)).tzinfo
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self.assertTrue(pap1 is pap2)
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gmt1 = pickle.loads(_byte_string(
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"cpytz\n_p\np1\n(S'Etc/GMT_plus_10'\np2\ntRp3\n."))
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gmt2 = pytz.timezone('Etc/GMT+10')
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self.assertTrue(gmt1 is gmt2)
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class USEasternDSTStartTestCase(unittest.TestCase):
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tzinfo = pytz.timezone('US/Eastern')
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# 24 hours before DST changeover
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transition_time = datetime(2002, 4, 7, 7, 0, 0, tzinfo=UTC)
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# Increase for 'flexible' DST transitions due to 1 minute granularity
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# of Python's datetime library
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instant = timedelta(seconds=1)
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# before transition
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before = {
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'tzname': 'EST',
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'utcoffset': timedelta(hours=-5),
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'dst': timedelta(hours=0),
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}
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# after transition
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after = {
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'tzname': 'EDT',
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'utcoffset': timedelta(hours=-4),
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'dst': timedelta(hours=1),
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}
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def _test_tzname(self, utc_dt, wanted):
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tzname = wanted['tzname']
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dt = utc_dt.astimezone(self.tzinfo)
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self.assertEqual(
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dt.tzname(), tzname,
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'Expected %s as tzname for %s. Got %s' % (
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tzname, str(utc_dt), dt.tzname()
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)
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)
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def _test_utcoffset(self, utc_dt, wanted):
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utcoffset = wanted['utcoffset']
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dt = utc_dt.astimezone(self.tzinfo)
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self.assertEqual(
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dt.utcoffset(), wanted['utcoffset'],
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'Expected %s as utcoffset for %s. Got %s' % (
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utcoffset, utc_dt, dt.utcoffset()
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)
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)
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def _test_dst(self, utc_dt, wanted):
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dst = wanted['dst']
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dt = utc_dt.astimezone(self.tzinfo)
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self.assertEqual(
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dt.dst(), dst,
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'Expected %s as dst for %s. Got %s' % (dst, utc_dt, dt.dst())
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)
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def test_arithmetic(self):
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utc_dt = self.transition_time
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for days in range(-420, 720, 20):
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delta = timedelta(days=days)
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# Make sure we can get back where we started
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dt = utc_dt.astimezone(self.tzinfo)
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dt2 = dt + delta
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dt2 = dt2 - delta
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self.assertEqual(dt, dt2)
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# Make sure arithmetic crossing DST boundaries ends
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# up in the correct timezone after normalization
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utc_plus_delta = (utc_dt + delta).astimezone(self.tzinfo)
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local_plus_delta = self.tzinfo.normalize(dt + delta)
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self.assertEqual(
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prettydt(utc_plus_delta), prettydt(local_plus_delta),
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'Incorrect result for delta==%d days. Wanted %r. Got %r' % (
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days, prettydt(utc_plus_delta), prettydt(local_plus_delta),
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)
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)
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def _test_all(self, utc_dt, wanted):
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self._test_utcoffset(utc_dt, wanted)
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self._test_tzname(utc_dt, wanted)
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self._test_dst(utc_dt, wanted)
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def testDayBefore(self):
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self._test_all(
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self.transition_time - timedelta(days=1), self.before
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)
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def testTwoHoursBefore(self):
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self._test_all(
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self.transition_time - timedelta(hours=2), self.before
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)
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def testHourBefore(self):
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self._test_all(
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self.transition_time - timedelta(hours=1), self.before
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)
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def testInstantBefore(self):
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self._test_all(
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self.transition_time - self.instant, self.before
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)
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def testTransition(self):
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self._test_all(
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self.transition_time, self.after
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)
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def testInstantAfter(self):
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self._test_all(
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self.transition_time + self.instant, self.after
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)
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def testHourAfter(self):
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self._test_all(
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self.transition_time + timedelta(hours=1), self.after
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)
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def testTwoHoursAfter(self):
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self._test_all(
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self.transition_time + timedelta(hours=1), self.after
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)
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def testDayAfter(self):
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self._test_all(
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self.transition_time + timedelta(days=1), self.after
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)
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class USEasternDSTEndTestCase(USEasternDSTStartTestCase):
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tzinfo = pytz.timezone('US/Eastern')
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transition_time = datetime(2002, 10, 27, 6, 0, 0, tzinfo=UTC)
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before = {
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'tzname': 'EDT',
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'utcoffset': timedelta(hours=-4),
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'dst': timedelta(hours=1),
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}
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after = {
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'tzname': 'EST',
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'utcoffset': timedelta(hours=-5),
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'dst': timedelta(hours=0),
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}
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class USEasternEPTStartTestCase(USEasternDSTStartTestCase):
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transition_time = datetime(1945, 8, 14, 23, 0, 0, tzinfo=UTC)
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before = {
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'tzname': 'EWT',
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'utcoffset': timedelta(hours=-4),
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'dst': timedelta(hours=1),
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}
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after = {
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'tzname': 'EPT',
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'utcoffset': timedelta(hours=-4),
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'dst': timedelta(hours=1),
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}
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class USEasternEPTEndTestCase(USEasternDSTStartTestCase):
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transition_time = datetime(1945, 9, 30, 6, 0, 0, tzinfo=UTC)
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before = {
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'tzname': 'EPT',
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'utcoffset': timedelta(hours=-4),
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'dst': timedelta(hours=1),
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}
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after = {
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'tzname': 'EST',
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'utcoffset': timedelta(hours=-5),
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'dst': timedelta(hours=0),
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}
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class WarsawWMTEndTestCase(USEasternDSTStartTestCase):
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# In 1915, Warsaw changed from Warsaw to Central European time.
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# This involved the clocks being set backwards, causing a end-of-DST
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# like situation without DST being involved.
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tzinfo = pytz.timezone('Europe/Warsaw')
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transition_time = datetime(1915, 8, 4, 22, 36, 0, tzinfo=UTC)
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before = {
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'tzname': 'WMT',
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'utcoffset': timedelta(hours=1, minutes=24),
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'dst': timedelta(0),
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}
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after = {
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'tzname': 'CET',
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'utcoffset': timedelta(hours=1),
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'dst': timedelta(0),
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}
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class VilniusWMTEndTestCase(USEasternDSTStartTestCase):
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# At the end of 1916, Vilnius changed timezones putting its clock
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# forward by 11 minutes 35 seconds. Neither timezone was in DST mode.
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tzinfo = pytz.timezone('Europe/Vilnius')
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instant = timedelta(seconds=31)
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transition_time = datetime(1916, 12, 31, 22, 36, 00, tzinfo=UTC)
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before = {
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'tzname': 'WMT',
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'utcoffset': timedelta(hours=1, minutes=24),
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'dst': timedelta(0),
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}
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after = {
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'tzname': 'KMT',
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'utcoffset': timedelta(hours=1, minutes=36), # Really 1:35:36
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'dst': timedelta(0),
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}
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class VilniusCESTStartTestCase(USEasternDSTStartTestCase):
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# In 1941, Vilnius changed from MSG to CEST, switching to summer
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# time while simultaneously reducing its UTC offset by two hours,
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# causing the clocks to go backwards for this summer time
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# switchover.
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tzinfo = pytz.timezone('Europe/Vilnius')
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transition_time = datetime(1941, 6, 23, 21, 00, 00, tzinfo=UTC)
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before = {
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'tzname': 'MSK',
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'utcoffset': timedelta(hours=3),
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'dst': timedelta(0),
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}
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after = {
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'tzname': 'CEST',
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'utcoffset': timedelta(hours=2),
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'dst': timedelta(hours=1),
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}
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class LondonHistoryStartTestCase(USEasternDSTStartTestCase):
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# The first known timezone transition in London was in 1847 when
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# clocks where synchronized to GMT. However, we currently only
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# understand v1 format tzfile(5) files which does handle years
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# this far in the past, so our earliest known transition is in
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# 1916.
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tzinfo = pytz.timezone('Europe/London')
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# transition_time = datetime(1847, 12, 1, 1, 15, 00, tzinfo=UTC)
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# before = {
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# 'tzname': 'LMT',
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# 'utcoffset': timedelta(minutes=-75),
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# 'dst': timedelta(0),
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# }
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# after = {
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# 'tzname': 'GMT',
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# 'utcoffset': timedelta(0),
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# 'dst': timedelta(0),
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# }
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transition_time = datetime(1916, 5, 21, 2, 00, 00, tzinfo=UTC)
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before = {
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'tzname': 'GMT',
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'utcoffset': timedelta(0),
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'dst': timedelta(0),
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}
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after = {
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'tzname': 'BST',
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'utcoffset': timedelta(hours=1),
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'dst': timedelta(hours=1),
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}
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class LondonHistoryEndTestCase(USEasternDSTStartTestCase):
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# Timezone switchovers are projected into the future, even
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# though no official statements exist or could be believed even
|
|
# if they did exist. We currently only check the last known
|
|
# transition in 2037, as we are still using v1 format tzfile(5)
|
|
# files.
|
|
tzinfo = pytz.timezone('Europe/London')
|
|
# transition_time = datetime(2499, 10, 25, 1, 0, 0, tzinfo=UTC)
|
|
transition_time = datetime(2037, 10, 25, 1, 0, 0, tzinfo=UTC)
|
|
before = {
|
|
'tzname': 'BST',
|
|
'utcoffset': timedelta(hours=1),
|
|
'dst': timedelta(hours=1),
|
|
}
|
|
after = {
|
|
'tzname': 'GMT',
|
|
'utcoffset': timedelta(0),
|
|
'dst': timedelta(0),
|
|
}
|
|
|
|
|
|
class NoumeaHistoryStartTestCase(USEasternDSTStartTestCase):
|
|
# Noumea adopted a whole hour offset in 1912. Previously
|
|
# it was 11 hours, 5 minutes and 48 seconds off UTC. However,
|
|
# due to limitations of the Python datetime library, we need
|
|
# to round that to 11 hours 6 minutes.
|
|
tzinfo = pytz.timezone('Pacific/Noumea')
|
|
transition_time = datetime(1912, 1, 12, 12, 54, 12, tzinfo=UTC)
|
|
before = {
|
|
'tzname': 'LMT',
|
|
'utcoffset': timedelta(hours=11, minutes=6),
|
|
'dst': timedelta(0),
|
|
}
|
|
after = {
|
|
'tzname': '+11', # pre-2017a, NCT
|
|
'utcoffset': timedelta(hours=11),
|
|
'dst': timedelta(0),
|
|
}
|
|
|
|
|
|
class NoumeaDSTEndTestCase(USEasternDSTStartTestCase):
|
|
# Noumea dropped DST in 1997.
|
|
tzinfo = pytz.timezone('Pacific/Noumea')
|
|
transition_time = datetime(1997, 3, 1, 15, 00, 00, tzinfo=UTC)
|
|
before = {
|
|
'tzname': '+12', # pre-2017a, NCST
|
|
'utcoffset': timedelta(hours=12),
|
|
'dst': timedelta(hours=1),
|
|
}
|
|
after = {
|
|
'tzname': '+11', # pre-2017a, NCT
|
|
'utcoffset': timedelta(hours=11),
|
|
'dst': timedelta(0),
|
|
}
|
|
|
|
|
|
class NoumeaNoMoreDSTTestCase(NoumeaDSTEndTestCase):
|
|
# Noumea dropped DST in 1997. Here we test that it stops occuring.
|
|
transition_time = (
|
|
NoumeaDSTEndTestCase.transition_time + timedelta(days=365 * 10))
|
|
before = NoumeaDSTEndTestCase.after
|
|
after = NoumeaDSTEndTestCase.after
|
|
|
|
|
|
class TahitiTestCase(USEasternDSTStartTestCase):
|
|
# Tahiti has had a single transition in its history.
|
|
tzinfo = pytz.timezone('Pacific/Tahiti')
|
|
transition_time = datetime(1912, 10, 1, 9, 58, 16, tzinfo=UTC)
|
|
before = {
|
|
'tzname': 'LMT',
|
|
'utcoffset': timedelta(hours=-9, minutes=-58),
|
|
'dst': timedelta(0),
|
|
}
|
|
after = {
|
|
'tzname': '-10', # pre-2017a, TAHT
|
|
'utcoffset': timedelta(hours=-10),
|
|
'dst': timedelta(0),
|
|
}
|
|
|
|
|
|
class SamoaInternationalDateLineChange(USEasternDSTStartTestCase):
|
|
# At the end of 2011, Samoa will switch from being east of the
|
|
# international dateline to the west. There will be no Dec 30th
|
|
# 2011 and it will switch from UTC-10 to UTC+14.
|
|
tzinfo = pytz.timezone('Pacific/Apia')
|
|
transition_time = datetime(2011, 12, 30, 10, 0, 0, tzinfo=UTC)
|
|
before = {
|
|
'tzname': '-10', # pre-2017a, SDT
|
|
'utcoffset': timedelta(hours=-10),
|
|
'dst': timedelta(hours=1),
|
|
}
|
|
after = {
|
|
'tzname': '+14', # pre-2017a, WSDT
|
|
'utcoffset': timedelta(hours=14),
|
|
'dst': timedelta(hours=1),
|
|
}
|
|
|
|
|
|
class ReferenceUSEasternDSTStartTestCase(USEasternDSTStartTestCase):
|
|
tzinfo = reference.Eastern
|
|
|
|
def test_arithmetic(self):
|
|
# Reference implementation cannot handle this
|
|
pass
|
|
|
|
|
|
class ReferenceUSEasternDSTEndTestCase(USEasternDSTEndTestCase):
|
|
tzinfo = reference.Eastern
|
|
|
|
def testHourBefore(self):
|
|
# Python's datetime library has a bug, where the hour before
|
|
# a daylight saving transition is one hour out. For example,
|
|
# at the end of US/Eastern daylight saving time, 01:00 EST
|
|
# occurs twice (once at 05:00 UTC and once at 06:00 UTC),
|
|
# whereas the first should actually be 01:00 EDT.
|
|
# Note that this bug is by design - by accepting this ambiguity
|
|
# for one hour one hour per year, an is_dst flag on datetime.time
|
|
# became unnecessary.
|
|
self._test_all(self.transition_time - timedelta(hours=1), self.after)
|
|
|
|
def testInstantBefore(self):
|
|
self._test_all(self.transition_time - timedelta(seconds=1), self.after)
|
|
|
|
def test_arithmetic(self):
|
|
# Reference implementation cannot handle this
|
|
pass
|
|
|
|
|
|
class LocalTestCase(unittest.TestCase):
|
|
def testLocalize(self):
|
|
loc_tz = pytz.timezone('Europe/Amsterdam')
|
|
|
|
loc_time = loc_tz.localize(datetime(1930, 5, 10, 0, 0, 0))
|
|
# Actually +00:19:32, but Python datetime rounds this
|
|
self.assertEqual(loc_time.strftime('%Z%z'), 'AMT+0020')
|
|
|
|
loc_time = loc_tz.localize(datetime(1930, 5, 20, 0, 0, 0))
|
|
# Actually +00:19:32, but Python datetime rounds this
|
|
self.assertEqual(loc_time.strftime('%Z%z'), 'NST+0120')
|
|
|
|
loc_time = loc_tz.localize(datetime(1940, 5, 10, 0, 0, 0))
|
|
# pre-2017a, abbreviation was NCT
|
|
self.assertEqual(loc_time.strftime('%Z%z'), '+0020+0020')
|
|
|
|
loc_time = loc_tz.localize(datetime(1940, 5, 20, 0, 0, 0))
|
|
self.assertEqual(loc_time.strftime('%Z%z'), 'CEST+0200')
|
|
|
|
loc_time = loc_tz.localize(datetime(2004, 2, 1, 0, 0, 0))
|
|
self.assertEqual(loc_time.strftime('%Z%z'), 'CET+0100')
|
|
|
|
loc_time = loc_tz.localize(datetime(2004, 4, 1, 0, 0, 0))
|
|
self.assertEqual(loc_time.strftime('%Z%z'), 'CEST+0200')
|
|
|
|
loc_time = loc_tz.localize(datetime(1943, 3, 29, 1, 59, 59))
|
|
self.assertEqual(loc_time.strftime('%Z%z'), 'CET+0100')
|
|
|
|
# Switch to US
|
|
loc_tz = pytz.timezone('US/Eastern')
|
|
|
|
# End of DST ambiguity check
|
|
loc_time = loc_tz.localize(datetime(1918, 10, 27, 1, 59, 59), is_dst=1)
|
|
self.assertEqual(loc_time.strftime('%Z%z'), 'EDT-0400')
|
|
|
|
loc_time = loc_tz.localize(datetime(1918, 10, 27, 1, 59, 59), is_dst=0)
|
|
self.assertEqual(loc_time.strftime('%Z%z'), 'EST-0500')
|
|
|
|
self.assertRaises(
|
|
pytz.AmbiguousTimeError,
|
|
loc_tz.localize, datetime(1918, 10, 27, 1, 59, 59), is_dst=None
|
|
)
|
|
|
|
# Start of DST non-existent times
|
|
loc_time = loc_tz.localize(datetime(1918, 3, 31, 2, 0, 0), is_dst=0)
|
|
self.assertEqual(loc_time.strftime('%Z%z'), 'EST-0500')
|
|
|
|
loc_time = loc_tz.localize(datetime(1918, 3, 31, 2, 0, 0), is_dst=1)
|
|
self.assertEqual(loc_time.strftime('%Z%z'), 'EDT-0400')
|
|
|
|
self.assertRaises(
|
|
pytz.NonExistentTimeError,
|
|
loc_tz.localize, datetime(1918, 3, 31, 2, 0, 0), is_dst=None
|
|
)
|
|
|
|
# Weird changes - war time and peace time both is_dst==True
|
|
|
|
loc_time = loc_tz.localize(datetime(1942, 2, 9, 3, 0, 0))
|
|
self.assertEqual(loc_time.strftime('%Z%z'), 'EWT-0400')
|
|
|
|
loc_time = loc_tz.localize(datetime(1945, 8, 14, 19, 0, 0))
|
|
self.assertEqual(loc_time.strftime('%Z%z'), 'EPT-0400')
|
|
|
|
loc_time = loc_tz.localize(datetime(1945, 9, 30, 1, 0, 0), is_dst=1)
|
|
self.assertEqual(loc_time.strftime('%Z%z'), 'EPT-0400')
|
|
|
|
loc_time = loc_tz.localize(datetime(1945, 9, 30, 1, 0, 0), is_dst=0)
|
|
self.assertEqual(loc_time.strftime('%Z%z'), 'EST-0500')
|
|
|
|
# Weird changes - ambiguous time (end-of-DST like) but is_dst==False
|
|
for zonename, ambiguous_naive, expected in [
|
|
('Europe/Warsaw', datetime(1915, 8, 4, 23, 59, 59),
|
|
['1915-08-04 23:59:59 WMT+0124',
|
|
'1915-08-04 23:59:59 CET+0100']),
|
|
('Europe/Moscow', datetime(2014, 10, 26, 1, 30),
|
|
['2014-10-26 01:30:00 MSK+0400',
|
|
'2014-10-26 01:30:00 MSK+0300'])]:
|
|
loc_tz = pytz.timezone(zonename)
|
|
self.assertRaises(
|
|
pytz.AmbiguousTimeError,
|
|
loc_tz.localize, ambiguous_naive, is_dst=None
|
|
)
|
|
# Also test non-boolean is_dst in the weird case
|
|
for dst in [True, timedelta(1), False, timedelta(0)]:
|
|
loc_time = loc_tz.localize(ambiguous_naive, is_dst=dst)
|
|
self.assertEqual(loc_time.strftime(fmt), expected[not dst])
|
|
|
|
def testNormalize(self):
|
|
tz = pytz.timezone('US/Eastern')
|
|
dt = datetime(2004, 4, 4, 7, 0, 0, tzinfo=UTC).astimezone(tz)
|
|
dt2 = dt - timedelta(minutes=10)
|
|
self.assertEqual(
|
|
dt2.strftime('%Y-%m-%d %H:%M:%S %Z%z'),
|
|
'2004-04-04 02:50:00 EDT-0400'
|
|
)
|
|
|
|
dt2 = tz.normalize(dt2)
|
|
self.assertEqual(
|
|
dt2.strftime('%Y-%m-%d %H:%M:%S %Z%z'),
|
|
'2004-04-04 01:50:00 EST-0500'
|
|
)
|
|
|
|
def testPartialMinuteOffsets(self):
|
|
# utcoffset in Amsterdam was not a whole minute until 1937
|
|
# However, we fudge this by rounding them, as the Python
|
|
# datetime library
|
|
tz = pytz.timezone('Europe/Amsterdam')
|
|
utc_dt = datetime(1914, 1, 1, 13, 40, 28, tzinfo=UTC) # correct
|
|
utc_dt = utc_dt.replace(second=0) # But we need to fudge it
|
|
loc_dt = utc_dt.astimezone(tz)
|
|
self.assertEqual(
|
|
loc_dt.strftime('%Y-%m-%d %H:%M:%S %Z%z'),
|
|
'1914-01-01 14:00:00 AMT+0020'
|
|
)
|
|
|
|
# And get back...
|
|
utc_dt = loc_dt.astimezone(UTC)
|
|
self.assertEqual(
|
|
utc_dt.strftime('%Y-%m-%d %H:%M:%S %Z%z'),
|
|
'1914-01-01 13:40:00 UTC+0000'
|
|
)
|
|
|
|
def no_testCreateLocaltime(self):
|
|
# It would be nice if this worked, but it doesn't.
|
|
tz = pytz.timezone('Europe/Amsterdam')
|
|
dt = datetime(2004, 10, 31, 2, 0, 0, tzinfo=tz)
|
|
self.assertEqual(
|
|
dt.strftime(fmt),
|
|
'2004-10-31 02:00:00 CET+0100'
|
|
)
|
|
|
|
|
|
class CommonTimezonesTestCase(unittest.TestCase):
|
|
def test_bratislava(self):
|
|
# Bratislava is the default timezone for Slovakia, but our
|
|
# heuristics where not adding it to common_timezones. Ideally,
|
|
# common_timezones should be populated from zone.tab at runtime,
|
|
# but I'm hesitant to pay the startup cost as loading the list
|
|
# on demand whilst remaining backwards compatible seems
|
|
# difficult.
|
|
self.assertTrue('Europe/Bratislava' in pytz.common_timezones)
|
|
self.assertTrue('Europe/Bratislava' in pytz.common_timezones_set)
|
|
|
|
def test_us_eastern(self):
|
|
self.assertTrue('US/Eastern' in pytz.common_timezones)
|
|
self.assertTrue('US/Eastern' in pytz.common_timezones_set)
|
|
|
|
def test_belfast(self):
|
|
# Belfast uses London time.
|
|
self.assertTrue('Europe/Belfast' in pytz.all_timezones_set)
|
|
self.assertFalse('Europe/Belfast' in pytz.common_timezones)
|
|
self.assertFalse('Europe/Belfast' in pytz.common_timezones_set)
|
|
|
|
|
|
class ZoneCaseInsensitivityTestCase(unittest.TestCase):
|
|
def test_lower_case_timezone_constructor_arg(self):
|
|
for tz in pytz.all_timezones_set:
|
|
from_lower = pytz.timezone(tz.lower())
|
|
from_passed = pytz.timezone(tz)
|
|
self.assertEqual(from_lower,
|
|
from_passed,
|
|
"arg '%s' and arg '%s' produce different "
|
|
"timezone objects" % (
|
|
from_lower, from_passed))
|
|
|
|
|
|
class BaseTzInfoTestCase:
|
|
'''Ensure UTC, StaticTzInfo and DstTzInfo work consistently.
|
|
|
|
These tests are run for each type of tzinfo.
|
|
'''
|
|
tz = None # override
|
|
tz_class = None # override
|
|
|
|
def test_expectedclass(self):
|
|
self.assertTrue(isinstance(self.tz, self.tz_class))
|
|
|
|
def test_fromutc(self):
|
|
# naive datetime.
|
|
dt1 = datetime(2011, 10, 31)
|
|
|
|
# localized datetime, same timezone.
|
|
dt2 = self.tz.localize(dt1)
|
|
|
|
# Both should give the same results. Note that the standard
|
|
# Python tzinfo.fromutc() only supports the second.
|
|
for dt in [dt1, dt2]:
|
|
loc_dt = self.tz.fromutc(dt)
|
|
loc_dt2 = pytz.utc.localize(dt1).astimezone(self.tz)
|
|
self.assertEqual(loc_dt, loc_dt2)
|
|
|
|
# localized datetime, different timezone.
|
|
new_tz = pytz.timezone('Europe/Paris')
|
|
self.assertTrue(self.tz is not new_tz)
|
|
dt3 = new_tz.localize(dt1)
|
|
self.assertRaises(ValueError, self.tz.fromutc, dt3)
|
|
|
|
def test_normalize(self):
|
|
other_tz = pytz.timezone('Europe/Paris')
|
|
self.assertTrue(self.tz is not other_tz)
|
|
|
|
dt = datetime(2012, 3, 26, 12, 0)
|
|
other_dt = other_tz.localize(dt)
|
|
|
|
local_dt = self.tz.normalize(other_dt)
|
|
|
|
self.assertTrue(local_dt.tzinfo is not other_dt.tzinfo)
|
|
self.assertNotEqual(
|
|
local_dt.replace(tzinfo=None), other_dt.replace(tzinfo=None))
|
|
|
|
def test_astimezone(self):
|
|
other_tz = pytz.timezone('Europe/Paris')
|
|
self.assertTrue(self.tz is not other_tz)
|
|
|
|
dt = datetime(2012, 3, 26, 12, 0)
|
|
other_dt = other_tz.localize(dt)
|
|
|
|
local_dt = other_dt.astimezone(self.tz)
|
|
|
|
self.assertTrue(local_dt.tzinfo is not other_dt.tzinfo)
|
|
self.assertNotEqual(
|
|
local_dt.replace(tzinfo=None), other_dt.replace(tzinfo=None))
|
|
|
|
|
|
class OptimizedUTCTestCase(unittest.TestCase, BaseTzInfoTestCase):
|
|
tz = pytz.utc
|
|
tz_class = tz.__class__
|
|
|
|
|
|
class LegacyUTCTestCase(unittest.TestCase, BaseTzInfoTestCase):
|
|
# Deprecated timezone, but useful for comparison tests.
|
|
tz = pytz.timezone('Etc/UTC')
|
|
tz_class = StaticTzInfo
|
|
|
|
|
|
class StaticTzInfoTestCase(unittest.TestCase, BaseTzInfoTestCase):
|
|
tz = pytz.timezone('GMT')
|
|
tz_class = StaticTzInfo
|
|
|
|
|
|
class DstTzInfoTestCase(unittest.TestCase, BaseTzInfoTestCase):
|
|
tz = pytz.timezone('Australia/Melbourne')
|
|
tz_class = DstTzInfo
|
|
|
|
|
|
def test_suite():
|
|
suite = unittest.TestSuite()
|
|
suite.addTest(doctest.DocTestSuite('pytz'))
|
|
suite.addTest(doctest.DocTestSuite('pytz.tzinfo'))
|
|
suite.addTest(doctest.DocTestSuite('pytz.exceptions'))
|
|
import test_tzinfo
|
|
suite.addTest(unittest.defaultTestLoader.loadTestsFromModule(test_tzinfo))
|
|
return suite
|
|
|
|
|
|
if __name__ == '__main__':
|
|
warnings.simplefilter("error") # Warnings should be fatal in tests.
|
|
unittest.main(defaultTest='test_suite')
|