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from django.test.utils import override_settings
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from django.utils import six
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from django.utils import timezone
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from django.utils.tzinfo import FixedOffset
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from django.utils import unittest
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EAT = FixedOffset(180) # Africa/Nairobi
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ICT = FixedOffset(420) # Asia/Bangkok
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class TimezoneTests(unittest.TestCase):
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def test_localtime(self):
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now = datetime.datetime.utcnow().replace(tzinfo=timezone.utc)
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local_tz = timezone.LocalTimezone()
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local_now = timezone.localtime(now, local_tz)
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self.assertEqual(local_now.tzinfo, local_tz)
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def test_localtime_out_of_range(self):
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local_tz = timezone.LocalTimezone()
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long_ago = datetime.datetime(1900, 1, 1, tzinfo=timezone.utc)
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timezone.localtime(long_ago, local_tz)
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except (OverflowError, ValueError) as exc:
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self.assertIn("install pytz", exc.args[0])
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raise unittest.SkipTest("Failed to trigger an OverflowError or ValueError")
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with override_settings(USE_TZ=True):
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self.assertTrue(timezone.is_aware(timezone.now()))
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with override_settings(USE_TZ=False):
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self.assertTrue(timezone.is_naive(timezone.now()))
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def test_override(self):
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default = timezone.get_default_timezone()
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timezone.activate(ICT)
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with timezone.override(EAT):
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self.assertIs(EAT, timezone.get_current_timezone())
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self.assertIs(ICT, timezone.get_current_timezone())
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with timezone.override(None):
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self.assertIs(default, timezone.get_current_timezone())
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self.assertIs(ICT, timezone.get_current_timezone())
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with timezone.override(EAT):
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self.assertIs(EAT, timezone.get_current_timezone())
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self.assertIs(default, timezone.get_current_timezone())
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with timezone.override(None):
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self.assertIs(default, timezone.get_current_timezone())
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self.assertIs(default, timezone.get_current_timezone())
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self.assertIsInstance(copy.copy(timezone.UTC()), timezone.UTC)
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self.assertIsInstance(copy.copy(timezone.LocalTimezone()), timezone.LocalTimezone)
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def test_deepcopy(self):
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self.assertIsInstance(copy.deepcopy(timezone.UTC()), timezone.UTC)
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self.assertIsInstance(copy.deepcopy(timezone.LocalTimezone()), timezone.LocalTimezone)
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def test_pickling_unpickling(self):
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self.assertIsInstance(pickle.loads(pickle.dumps(timezone.UTC())), timezone.UTC)
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self.assertIsInstance(pickle.loads(pickle.dumps(timezone.LocalTimezone())), timezone.LocalTimezone)