92 lines
3.4 KiB
Python
92 lines
3.4 KiB
Python
import copy
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import datetime
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import os
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import pickle
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import time
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import unittest
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import warnings
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from django.test.utils import IgnoreDeprecationWarningsMixin
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from django.utils.deprecation import RemovedInDjango19Warning
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# Swallow the import-time warning to test the deprecated implementation.
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with warnings.catch_warnings():
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warnings.filterwarnings("ignore", category=RemovedInDjango19Warning)
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from django.utils.tzinfo import FixedOffset, LocalTimezone
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class TzinfoTests(IgnoreDeprecationWarningsMixin, unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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super(TzinfoTests, cls).setUpClass()
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cls.old_TZ = os.environ.get('TZ')
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os.environ['TZ'] = 'US/Eastern'
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try:
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# Check if a timezone has been set
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time.tzset()
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cls.tz_tests = True
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except AttributeError:
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# No timezone available. Don't run the tests that require a TZ
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cls.tz_tests = False
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@classmethod
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def tearDownClass(cls):
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if cls.old_TZ is None:
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del os.environ['TZ']
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else:
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os.environ['TZ'] = cls.old_TZ
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# Cleanup - force re-evaluation of TZ environment variable.
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if cls.tz_tests:
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time.tzset()
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super(TzinfoTests, cls).tearDownClass()
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def test_fixedoffset(self):
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self.assertEqual(repr(FixedOffset(0)), '+0000')
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self.assertEqual(repr(FixedOffset(60)), '+0100')
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self.assertEqual(repr(FixedOffset(-60)), '-0100')
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self.assertEqual(repr(FixedOffset(280)), '+0440')
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self.assertEqual(repr(FixedOffset(-280)), '-0440')
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self.assertEqual(repr(FixedOffset(-78.4)), '-0118')
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self.assertEqual(repr(FixedOffset(78.4)), '+0118')
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self.assertEqual(repr(FixedOffset(-5.5 * 60)), '-0530')
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self.assertEqual(repr(FixedOffset(5.5 * 60)), '+0530')
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self.assertEqual(repr(FixedOffset(-.5 * 60)), '-0030')
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self.assertEqual(repr(FixedOffset(.5 * 60)), '+0030')
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def test_16899(self):
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if not self.tz_tests:
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return
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ts = 1289106000
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# Midnight at the end of DST in US/Eastern: 2010-11-07T05:00:00Z
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dt = datetime.datetime.utcfromtimestamp(ts)
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# US/Eastern -- we force its representation to "EST"
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tz = LocalTimezone(dt + datetime.timedelta(days=1))
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self.assertEqual(
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repr(datetime.datetime.fromtimestamp(ts - 3600, tz)),
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'datetime.datetime(2010, 11, 7, 0, 0, tzinfo=EST)')
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self.assertEqual(
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repr(datetime.datetime.fromtimestamp(ts, tz)),
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'datetime.datetime(2010, 11, 7, 1, 0, tzinfo=EST)')
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self.assertEqual(
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repr(datetime.datetime.fromtimestamp(ts + 3600, tz)),
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'datetime.datetime(2010, 11, 7, 1, 0, tzinfo=EST)')
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def test_copy(self):
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now = datetime.datetime.now()
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self.assertIsInstance(copy.copy(FixedOffset(90)), FixedOffset)
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self.assertIsInstance(copy.copy(LocalTimezone(now)), LocalTimezone)
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def test_deepcopy(self):
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now = datetime.datetime.now()
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self.assertIsInstance(copy.deepcopy(FixedOffset(90)), FixedOffset)
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self.assertIsInstance(copy.deepcopy(LocalTimezone(now)), LocalTimezone)
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def test_pickling_unpickling(self):
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now = datetime.datetime.now()
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self.assertIsInstance(pickle.loads(pickle.dumps(FixedOffset(90))), FixedOffset)
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self.assertIsInstance(pickle.loads(pickle.dumps(LocalTimezone(now))), LocalTimezone)
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