mirror of
https://github.com/psycopg/psycopg2.git
synced 2024-11-14 13:06:34 +03:00
570 lines
23 KiB
Python
Executable File
570 lines
23 KiB
Python
Executable File
#!/usr/bin/env python
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# test_dates.py - unit test for dates handling
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#
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# Copyright (C) 2008-2011 James Henstridge <james@jamesh.id.au>
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#
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# psycopg2 is free software: you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published
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# by the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# In addition, as a special exception, the copyright holders give
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# permission to link this program with the OpenSSL library (or with
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# modified versions of OpenSSL that use the same license as OpenSSL),
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# and distribute linked combinations including the two.
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#
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# You must obey the GNU Lesser General Public License in all respects for
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# all of the code used other than OpenSSL.
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#
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# psycopg2 is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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# License for more details.
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import math
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import psycopg2
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from psycopg2.tz import FixedOffsetTimezone, ZERO
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from testutils import unittest, ConnectingTestCase
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class CommonDatetimeTestsMixin:
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def execute(self, *args):
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self.curs.execute(*args)
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return self.curs.fetchone()[0]
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def test_parse_date(self):
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value = self.DATE('2007-01-01', self.curs)
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self.assert_(value is not None)
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self.assertEqual(value.year, 2007)
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self.assertEqual(value.month, 1)
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self.assertEqual(value.day, 1)
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def test_parse_null_date(self):
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value = self.DATE(None, self.curs)
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self.assertEqual(value, None)
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def test_parse_incomplete_date(self):
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self.assertRaises(psycopg2.DataError, self.DATE, '2007', self.curs)
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self.assertRaises(psycopg2.DataError, self.DATE, '2007-01', self.curs)
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def test_parse_time(self):
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value = self.TIME('13:30:29', self.curs)
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self.assert_(value is not None)
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self.assertEqual(value.hour, 13)
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self.assertEqual(value.minute, 30)
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self.assertEqual(value.second, 29)
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def test_parse_null_time(self):
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value = self.TIME(None, self.curs)
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self.assertEqual(value, None)
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def test_parse_incomplete_time(self):
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self.assertRaises(psycopg2.DataError, self.TIME, '13', self.curs)
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self.assertRaises(psycopg2.DataError, self.TIME, '13:30', self.curs)
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def test_parse_datetime(self):
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value = self.DATETIME('2007-01-01 13:30:29', self.curs)
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self.assert_(value is not None)
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self.assertEqual(value.year, 2007)
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self.assertEqual(value.month, 1)
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self.assertEqual(value.day, 1)
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self.assertEqual(value.hour, 13)
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self.assertEqual(value.minute, 30)
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self.assertEqual(value.second, 29)
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def test_parse_null_datetime(self):
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value = self.DATETIME(None, self.curs)
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self.assertEqual(value, None)
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def test_parse_incomplete_datetime(self):
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self.assertRaises(psycopg2.DataError,
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self.DATETIME, '2007', self.curs)
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self.assertRaises(psycopg2.DataError,
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self.DATETIME, '2007-01', self.curs)
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self.assertRaises(psycopg2.DataError,
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self.DATETIME, '2007-01-01 13', self.curs)
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self.assertRaises(psycopg2.DataError,
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self.DATETIME, '2007-01-01 13:30', self.curs)
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def test_parse_null_interval(self):
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value = self.INTERVAL(None, self.curs)
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self.assertEqual(value, None)
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class DatetimeTests(ConnectingTestCase, CommonDatetimeTestsMixin):
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"""Tests for the datetime based date handling in psycopg2."""
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def setUp(self):
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ConnectingTestCase.setUp(self)
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self.curs = self.conn.cursor()
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self.DATE = psycopg2.extensions.PYDATE
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self.TIME = psycopg2.extensions.PYTIME
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self.DATETIME = psycopg2.extensions.PYDATETIME
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self.INTERVAL = psycopg2.extensions.PYINTERVAL
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def test_parse_bc_date(self):
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# datetime does not support BC dates
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self.assertRaises(ValueError, self.DATE, '00042-01-01 BC', self.curs)
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def test_parse_bc_datetime(self):
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# datetime does not support BC dates
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self.assertRaises(ValueError, self.DATETIME,
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'00042-01-01 13:30:29 BC', self.curs)
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def test_parse_time_microseconds(self):
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value = self.TIME('13:30:29.123456', self.curs)
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self.assertEqual(value.second, 29)
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self.assertEqual(value.microsecond, 123456)
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def test_parse_datetime_microseconds(self):
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value = self.DATETIME('2007-01-01 13:30:29.123456', self.curs)
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self.assertEqual(value.second, 29)
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self.assertEqual(value.microsecond, 123456)
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def check_time_tz(self, str_offset, offset):
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from datetime import time, timedelta
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base = time(13, 30, 29)
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base_str = '13:30:29'
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value = self.TIME(base_str + str_offset, self.curs)
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# Value has time zone info and correct UTC offset.
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self.assertNotEqual(value.tzinfo, None),
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self.assertEqual(value.utcoffset(), timedelta(seconds=offset))
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# Time portion is correct.
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self.assertEqual(value.replace(tzinfo=None), base)
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def test_parse_time_timezone(self):
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self.check_time_tz("+01", 3600)
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self.check_time_tz("-01", -3600)
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self.check_time_tz("+01:15", 4500)
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self.check_time_tz("-01:15", -4500)
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# The Python datetime module does not support time zone
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# offsets that are not a whole number of minutes.
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# We round the offset to the nearest minute.
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self.check_time_tz("+01:15:00", 60 * (60 + 15))
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self.check_time_tz("+01:15:29", 60 * (60 + 15))
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self.check_time_tz("+01:15:30", 60 * (60 + 16))
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self.check_time_tz("+01:15:59", 60 * (60 + 16))
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self.check_time_tz("-01:15:00", -60 * (60 + 15))
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self.check_time_tz("-01:15:29", -60 * (60 + 15))
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self.check_time_tz("-01:15:30", -60 * (60 + 16))
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self.check_time_tz("-01:15:59", -60 * (60 + 16))
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def check_datetime_tz(self, str_offset, offset):
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from datetime import datetime, timedelta
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base = datetime(2007, 1, 1, 13, 30, 29)
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base_str = '2007-01-01 13:30:29'
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value = self.DATETIME(base_str + str_offset, self.curs)
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# Value has time zone info and correct UTC offset.
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self.assertNotEqual(value.tzinfo, None),
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self.assertEqual(value.utcoffset(), timedelta(seconds=offset))
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# Datetime is correct.
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self.assertEqual(value.replace(tzinfo=None), base)
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# Conversion to UTC produces the expected offset.
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UTC = FixedOffsetTimezone(0, "UTC")
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value_utc = value.astimezone(UTC).replace(tzinfo=None)
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self.assertEqual(base - value_utc, timedelta(seconds=offset))
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def test_parse_datetime_timezone(self):
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self.check_datetime_tz("+01", 3600)
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self.check_datetime_tz("-01", -3600)
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self.check_datetime_tz("+01:15", 4500)
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self.check_datetime_tz("-01:15", -4500)
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# The Python datetime module does not support time zone
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# offsets that are not a whole number of minutes.
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# We round the offset to the nearest minute.
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self.check_datetime_tz("+01:15:00", 60 * (60 + 15))
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self.check_datetime_tz("+01:15:29", 60 * (60 + 15))
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self.check_datetime_tz("+01:15:30", 60 * (60 + 16))
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self.check_datetime_tz("+01:15:59", 60 * (60 + 16))
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self.check_datetime_tz("-01:15:00", -60 * (60 + 15))
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self.check_datetime_tz("-01:15:29", -60 * (60 + 15))
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self.check_datetime_tz("-01:15:30", -60 * (60 + 16))
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self.check_datetime_tz("-01:15:59", -60 * (60 + 16))
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def test_parse_time_no_timezone(self):
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self.assertEqual(self.TIME("13:30:29", self.curs).tzinfo, None)
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self.assertEqual(self.TIME("13:30:29.123456", self.curs).tzinfo, None)
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def test_parse_datetime_no_timezone(self):
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self.assertEqual(
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self.DATETIME("2007-01-01 13:30:29", self.curs).tzinfo, None)
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self.assertEqual(
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self.DATETIME("2007-01-01 13:30:29.123456", self.curs).tzinfo, None)
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def test_parse_interval(self):
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value = self.INTERVAL('42 days 12:34:56.123456', self.curs)
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self.assertNotEqual(value, None)
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self.assertEqual(value.days, 42)
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self.assertEqual(value.seconds, 45296)
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self.assertEqual(value.microseconds, 123456)
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def test_parse_negative_interval(self):
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value = self.INTERVAL('-42 days -12:34:56.123456', self.curs)
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self.assertNotEqual(value, None)
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self.assertEqual(value.days, -43)
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self.assertEqual(value.seconds, 41103)
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self.assertEqual(value.microseconds, 876544)
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def test_parse_infinity(self):
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value = self.DATETIME('-infinity', self.curs)
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self.assertEqual(str(value), '0001-01-01 00:00:00')
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value = self.DATETIME('infinity', self.curs)
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self.assertEqual(str(value), '9999-12-31 23:59:59.999999')
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value = self.DATE('infinity', self.curs)
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self.assertEqual(str(value), '9999-12-31')
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def test_adapt_date(self):
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from datetime import date
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value = self.execute('select (%s)::date::text',
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[date(2007, 1, 1)])
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self.assertEqual(value, '2007-01-01')
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def test_adapt_time(self):
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from datetime import time
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value = self.execute('select (%s)::time::text',
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[time(13, 30, 29)])
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self.assertEqual(value, '13:30:29')
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def test_adapt_datetime(self):
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from datetime import datetime
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value = self.execute('select (%s)::timestamp::text',
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[datetime(2007, 1, 1, 13, 30, 29)])
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self.assertEqual(value, '2007-01-01 13:30:29')
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def test_adapt_timedelta(self):
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from datetime import timedelta
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value = self.execute('select extract(epoch from (%s)::interval)',
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[timedelta(days=42, seconds=45296,
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microseconds=123456)])
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seconds = math.floor(value)
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self.assertEqual(seconds, 3674096)
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self.assertEqual(int(round((value - seconds) * 1000000)), 123456)
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def test_adapt_negative_timedelta(self):
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from datetime import timedelta
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value = self.execute('select extract(epoch from (%s)::interval)',
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[timedelta(days=-42, seconds=45296,
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microseconds=123456)])
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seconds = math.floor(value)
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self.assertEqual(seconds, -3583504)
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self.assertEqual(int(round((value - seconds) * 1000000)), 123456)
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def _test_type_roundtrip(self, o1):
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o2 = self.execute("select %s;", (o1,))
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self.assertEqual(type(o1), type(o2))
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return o2
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def _test_type_roundtrip_array(self, o1):
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o1 = [o1]
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o2 = self.execute("select %s;", (o1,))
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self.assertEqual(type(o1[0]), type(o2[0]))
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def test_type_roundtrip_date(self):
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from datetime import date
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self._test_type_roundtrip(date(2010,5,3))
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def test_type_roundtrip_datetime(self):
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from datetime import datetime
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dt = self._test_type_roundtrip(datetime(2010,5,3,10,20,30))
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self.assertEqual(None, dt.tzinfo)
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def test_type_roundtrip_datetimetz(self):
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from datetime import datetime
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import psycopg2.tz
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tz = psycopg2.tz.FixedOffsetTimezone(8*60)
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dt1 = datetime(2010,5,3,10,20,30, tzinfo=tz)
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dt2 = self._test_type_roundtrip(dt1)
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self.assertNotEqual(None, dt2.tzinfo)
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self.assertEqual(dt1, dt2)
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def test_type_roundtrip_time(self):
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from datetime import time
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self._test_type_roundtrip(time(10,20,30))
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def test_type_roundtrip_interval(self):
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from datetime import timedelta
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self._test_type_roundtrip(timedelta(seconds=30))
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def test_type_roundtrip_date_array(self):
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from datetime import date
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self._test_type_roundtrip_array(date(2010,5,3))
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def test_type_roundtrip_datetime_array(self):
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from datetime import datetime
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self._test_type_roundtrip_array(datetime(2010,5,3,10,20,30))
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def test_type_roundtrip_time_array(self):
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from datetime import time
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self._test_type_roundtrip_array(time(10,20,30))
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def test_type_roundtrip_interval_array(self):
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from datetime import timedelta
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self._test_type_roundtrip_array(timedelta(seconds=30))
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# Only run the datetime tests if psycopg was compiled with support.
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if not hasattr(psycopg2.extensions, 'PYDATETIME'):
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del DatetimeTests
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class mxDateTimeTests(ConnectingTestCase, CommonDatetimeTestsMixin):
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"""Tests for the mx.DateTime based date handling in psycopg2."""
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def setUp(self):
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ConnectingTestCase.setUp(self)
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self.curs = self.conn.cursor()
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self.DATE = psycopg2._psycopg.MXDATE
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self.TIME = psycopg2._psycopg.MXTIME
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self.DATETIME = psycopg2._psycopg.MXDATETIME
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self.INTERVAL = psycopg2._psycopg.MXINTERVAL
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psycopg2.extensions.register_type(self.DATE, self.conn)
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psycopg2.extensions.register_type(self.TIME, self.conn)
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psycopg2.extensions.register_type(self.DATETIME, self.conn)
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psycopg2.extensions.register_type(self.INTERVAL, self.conn)
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psycopg2.extensions.register_type(psycopg2.extensions.MXDATEARRAY, self.conn)
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psycopg2.extensions.register_type(psycopg2.extensions.MXTIMEARRAY, self.conn)
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psycopg2.extensions.register_type(psycopg2.extensions.MXDATETIMEARRAY, self.conn)
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psycopg2.extensions.register_type(psycopg2.extensions.MXINTERVALARRAY, self.conn)
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def tearDown(self):
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self.conn.close()
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def test_parse_bc_date(self):
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value = self.DATE('00042-01-01 BC', self.curs)
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self.assert_(value is not None)
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# mx.DateTime numbers BC dates from 0 rather than 1.
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self.assertEqual(value.year, -41)
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self.assertEqual(value.month, 1)
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self.assertEqual(value.day, 1)
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def test_parse_bc_datetime(self):
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value = self.DATETIME('00042-01-01 13:30:29 BC', self.curs)
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self.assert_(value is not None)
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# mx.DateTime numbers BC dates from 0 rather than 1.
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self.assertEqual(value.year, -41)
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self.assertEqual(value.month, 1)
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self.assertEqual(value.day, 1)
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self.assertEqual(value.hour, 13)
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self.assertEqual(value.minute, 30)
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self.assertEqual(value.second, 29)
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def test_parse_time_microseconds(self):
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value = self.TIME('13:30:29.123456', self.curs)
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self.assertEqual(math.floor(value.second), 29)
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self.assertEqual(
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int((value.second - math.floor(value.second)) * 1000000), 123456)
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def test_parse_datetime_microseconds(self):
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value = self.DATETIME('2007-01-01 13:30:29.123456', self.curs)
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self.assertEqual(math.floor(value.second), 29)
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self.assertEqual(
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int((value.second - math.floor(value.second)) * 1000000), 123456)
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def test_parse_time_timezone(self):
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# Time zone information is ignored.
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from mx.DateTime import Time
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expected = Time(13, 30, 29)
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self.assertEqual(expected, self.TIME("13:30:29+01", self.curs))
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self.assertEqual(expected, self.TIME("13:30:29-01", self.curs))
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self.assertEqual(expected, self.TIME("13:30:29+01:15", self.curs))
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self.assertEqual(expected, self.TIME("13:30:29-01:15", self.curs))
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self.assertEqual(expected, self.TIME("13:30:29+01:15:42", self.curs))
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self.assertEqual(expected, self.TIME("13:30:29-01:15:42", self.curs))
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def test_parse_datetime_timezone(self):
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# Time zone information is ignored.
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from mx.DateTime import DateTime
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expected = DateTime(2007, 1, 1, 13, 30, 29)
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self.assertEqual(
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expected, self.DATETIME("2007-01-01 13:30:29+01", self.curs))
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self.assertEqual(
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expected, self.DATETIME("2007-01-01 13:30:29-01", self.curs))
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self.assertEqual(
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expected, self.DATETIME("2007-01-01 13:30:29+01:15", self.curs))
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self.assertEqual(
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expected, self.DATETIME("2007-01-01 13:30:29-01:15", self.curs))
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self.assertEqual(
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expected, self.DATETIME("2007-01-01 13:30:29+01:15:42", self.curs))
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self.assertEqual(
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expected, self.DATETIME("2007-01-01 13:30:29-01:15:42", self.curs))
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def test_parse_interval(self):
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value = self.INTERVAL('42 days 05:50:05', self.curs)
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self.assert_(value is not None)
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self.assertEqual(value.day, 42)
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self.assertEqual(value.hour, 5)
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self.assertEqual(value.minute, 50)
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self.assertEqual(value.second, 5)
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def test_adapt_time(self):
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from mx.DateTime import Time
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value = self.execute('select (%s)::time::text',
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[Time(13, 30, 29)])
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self.assertEqual(value, '13:30:29')
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def test_adapt_datetime(self):
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from mx.DateTime import DateTime
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value = self.execute('select (%s)::timestamp::text',
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[DateTime(2007, 1, 1, 13, 30, 29.123456)])
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self.assertEqual(value, '2007-01-01 13:30:29.123456')
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def test_adapt_bc_datetime(self):
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from mx.DateTime import DateTime
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value = self.execute('select (%s)::timestamp::text',
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[DateTime(-41, 1, 1, 13, 30, 29.123456)])
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# microsecs for BC timestamps look not available in PG < 8.4
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# but more likely it's determined at compile time.
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self.assert_(value in (
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'0042-01-01 13:30:29.123456 BC',
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'0042-01-01 13:30:29 BC'), value)
|
|
|
|
def test_adapt_timedelta(self):
|
|
from mx.DateTime import DateTimeDeltaFrom
|
|
value = self.execute('select extract(epoch from (%s)::interval)',
|
|
[DateTimeDeltaFrom(days=42,
|
|
seconds=45296.123456)])
|
|
seconds = math.floor(value)
|
|
self.assertEqual(seconds, 3674096)
|
|
self.assertEqual(int(round((value - seconds) * 1000000)), 123456)
|
|
|
|
def test_adapt_negative_timedelta(self):
|
|
from mx.DateTime import DateTimeDeltaFrom
|
|
value = self.execute('select extract(epoch from (%s)::interval)',
|
|
[DateTimeDeltaFrom(days=-42,
|
|
seconds=45296.123456)])
|
|
seconds = math.floor(value)
|
|
self.assertEqual(seconds, -3583504)
|
|
self.assertEqual(int(round((value - seconds) * 1000000)), 123456)
|
|
|
|
def _test_type_roundtrip(self, o1):
|
|
o2 = self.execute("select %s;", (o1,))
|
|
self.assertEqual(type(o1), type(o2))
|
|
|
|
def _test_type_roundtrip_array(self, o1):
|
|
o1 = [o1]
|
|
o2 = self.execute("select %s;", (o1,))
|
|
self.assertEqual(type(o1[0]), type(o2[0]))
|
|
|
|
def test_type_roundtrip_date(self):
|
|
from mx.DateTime import Date
|
|
self._test_type_roundtrip(Date(2010,5,3))
|
|
|
|
def test_type_roundtrip_datetime(self):
|
|
from mx.DateTime import DateTime
|
|
self._test_type_roundtrip(DateTime(2010,5,3,10,20,30))
|
|
|
|
def test_type_roundtrip_time(self):
|
|
from mx.DateTime import Time
|
|
self._test_type_roundtrip(Time(10,20,30))
|
|
|
|
def test_type_roundtrip_interval(self):
|
|
from mx.DateTime import DateTimeDeltaFrom
|
|
self._test_type_roundtrip(DateTimeDeltaFrom(seconds=30))
|
|
|
|
def test_type_roundtrip_date_array(self):
|
|
from mx.DateTime import Date
|
|
self._test_type_roundtrip_array(Date(2010,5,3))
|
|
|
|
def test_type_roundtrip_datetime_array(self):
|
|
from mx.DateTime import DateTime
|
|
self._test_type_roundtrip_array(DateTime(2010,5,3,10,20,30))
|
|
|
|
def test_type_roundtrip_time_array(self):
|
|
from mx.DateTime import Time
|
|
self._test_type_roundtrip_array(Time(10,20,30))
|
|
|
|
def test_type_roundtrip_interval_array(self):
|
|
from mx.DateTime import DateTimeDeltaFrom
|
|
self._test_type_roundtrip_array(DateTimeDeltaFrom(seconds=30))
|
|
|
|
|
|
# Only run the mx.DateTime tests if psycopg was compiled with support.
|
|
try:
|
|
if not hasattr(psycopg2._psycopg, 'MXDATETIME'):
|
|
del mxDateTimeTests
|
|
except AttributeError:
|
|
del mxDateTimeTests
|
|
|
|
|
|
class FromTicksTestCase(unittest.TestCase):
|
|
# bug "TimestampFromTicks() throws ValueError (2-2.0.14)"
|
|
# reported by Jozsef Szalay on 2010-05-06
|
|
def test_timestamp_value_error_sec_59_99(self):
|
|
from datetime import datetime
|
|
s = psycopg2.TimestampFromTicks(1273173119.99992)
|
|
self.assertEqual(s.adapted,
|
|
datetime(2010, 5, 6, 14, 11, 59, 999920,
|
|
tzinfo=FixedOffsetTimezone(-5 * 60)))
|
|
|
|
def test_date_value_error_sec_59_99(self):
|
|
from datetime import date
|
|
s = psycopg2.DateFromTicks(1273173119.99992)
|
|
self.assertEqual(s.adapted, date(2010, 5, 6))
|
|
|
|
def test_time_value_error_sec_59_99(self):
|
|
from datetime import time
|
|
s = psycopg2.TimeFromTicks(1273173119.99992)
|
|
self.assertEqual(s.adapted.replace(hour=0),
|
|
time(0, 11, 59, 999920))
|
|
|
|
|
|
class FixedOffsetTimezoneTests(unittest.TestCase):
|
|
|
|
def test_init_with_no_args(self):
|
|
tzinfo = FixedOffsetTimezone()
|
|
self.assert_(tzinfo._offset is ZERO)
|
|
self.assert_(tzinfo._name is None)
|
|
|
|
def test_repr_with_positive_offset(self):
|
|
tzinfo = FixedOffsetTimezone(5 * 60)
|
|
self.assertEqual(repr(tzinfo), "psycopg2.tz.FixedOffsetTimezone(offset=300, name=None)")
|
|
|
|
def test_repr_with_negative_offset(self):
|
|
tzinfo = FixedOffsetTimezone(-5 * 60)
|
|
self.assertEqual(repr(tzinfo), "psycopg2.tz.FixedOffsetTimezone(offset=-300, name=None)")
|
|
|
|
def test_repr_with_name(self):
|
|
tzinfo = FixedOffsetTimezone(name="FOO")
|
|
self.assertEqual(repr(tzinfo), "psycopg2.tz.FixedOffsetTimezone(offset=0, name='FOO')")
|
|
|
|
def test_instance_caching(self):
|
|
self.assert_(FixedOffsetTimezone(name="FOO") is FixedOffsetTimezone(name="FOO"))
|
|
self.assert_(FixedOffsetTimezone(7 * 60) is FixedOffsetTimezone(7 * 60))
|
|
self.assert_(FixedOffsetTimezone(-9 * 60, 'FOO') is FixedOffsetTimezone(-9 * 60, 'FOO'))
|
|
self.assert_(FixedOffsetTimezone(9 * 60) is not FixedOffsetTimezone(9 * 60, 'FOO'))
|
|
self.assert_(FixedOffsetTimezone(name='FOO') is not FixedOffsetTimezone(9 * 60, 'FOO'))
|
|
|
|
def test_pickle(self):
|
|
# ticket #135
|
|
import pickle
|
|
|
|
tz11 = FixedOffsetTimezone(60)
|
|
tz12 = FixedOffsetTimezone(120)
|
|
for proto in [-1, 0, 1, 2]:
|
|
tz21, tz22 = pickle.loads(pickle.dumps([tz11, tz12], proto))
|
|
self.assertEqual(tz11, tz21)
|
|
self.assertEqual(tz12, tz22)
|
|
|
|
tz11 = FixedOffsetTimezone(60, name='foo')
|
|
tz12 = FixedOffsetTimezone(120, name='bar')
|
|
for proto in [-1, 0, 1, 2]:
|
|
tz21, tz22 = pickle.loads(pickle.dumps([tz11, tz12], proto))
|
|
self.assertEqual(tz11, tz21)
|
|
self.assertEqual(tz12, tz22)
|
|
|
|
|
|
def test_suite():
|
|
return unittest.TestLoader().loadTestsFromName(__name__)
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|