1091 lines
40 KiB
Python
1091 lines
40 KiB
Python
from test import support
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import decimal
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import enum
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import locale
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import math
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import platform
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import sys
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import sysconfig
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import time
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import threading
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import unittest
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import warnings
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try:
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import _testcapi
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except ImportError:
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_testcapi = None
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# Max year is only limited by the size of C int.
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SIZEOF_INT = sysconfig.get_config_var('SIZEOF_INT') or 4
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TIME_MAXYEAR = (1 << 8 * SIZEOF_INT - 1) - 1
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TIME_MINYEAR = -TIME_MAXYEAR - 1
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SEC_TO_US = 10 ** 6
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US_TO_NS = 10 ** 3
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MS_TO_NS = 10 ** 6
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SEC_TO_NS = 10 ** 9
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NS_TO_SEC = 10 ** 9
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class _PyTime(enum.IntEnum):
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# Round towards minus infinity (-inf)
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ROUND_FLOOR = 0
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# Round towards infinity (+inf)
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ROUND_CEILING = 1
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# Round to nearest with ties going to nearest even integer
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ROUND_HALF_EVEN = 2
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# Round away from zero
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ROUND_UP = 3
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# Rounding modes supported by PyTime
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ROUNDING_MODES = (
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# (PyTime rounding method, decimal rounding method)
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(_PyTime.ROUND_FLOOR, decimal.ROUND_FLOOR),
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(_PyTime.ROUND_CEILING, decimal.ROUND_CEILING),
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(_PyTime.ROUND_HALF_EVEN, decimal.ROUND_HALF_EVEN),
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(_PyTime.ROUND_UP, decimal.ROUND_UP),
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)
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def busy_wait(duration):
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deadline = time.monotonic() + duration
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while time.monotonic() < deadline:
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pass
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class TimeTestCase(unittest.TestCase):
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def setUp(self):
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self.t = time.time()
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def test_data_attributes(self):
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time.altzone
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time.daylight
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time.timezone
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time.tzname
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def test_time(self):
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time.time()
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info = time.get_clock_info('time')
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self.assertFalse(info.monotonic)
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self.assertTrue(info.adjustable)
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def test_time_ns_type(self):
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def check_ns(sec, ns):
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self.assertIsInstance(ns, int)
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sec_ns = int(sec * 1e9)
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# tolerate a difference of 50 ms
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self.assertLess((sec_ns - ns), 50 ** 6, (sec, ns))
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check_ns(time.time(),
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time.time_ns())
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check_ns(time.monotonic(),
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time.monotonic_ns())
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check_ns(time.perf_counter(),
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time.perf_counter_ns())
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check_ns(time.process_time(),
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time.process_time_ns())
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if hasattr(time, 'thread_time'):
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check_ns(time.thread_time(),
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time.thread_time_ns())
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if hasattr(time, 'clock_gettime'):
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check_ns(time.clock_gettime(time.CLOCK_REALTIME),
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time.clock_gettime_ns(time.CLOCK_REALTIME))
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def test_clock(self):
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with self.assertWarns(DeprecationWarning):
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time.clock()
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with self.assertWarns(DeprecationWarning):
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info = time.get_clock_info('clock')
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self.assertTrue(info.monotonic)
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self.assertFalse(info.adjustable)
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@unittest.skipUnless(hasattr(time, 'clock_gettime'),
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'need time.clock_gettime()')
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def test_clock_realtime(self):
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t = time.clock_gettime(time.CLOCK_REALTIME)
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self.assertIsInstance(t, float)
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@unittest.skipUnless(hasattr(time, 'clock_gettime'),
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'need time.clock_gettime()')
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@unittest.skipUnless(hasattr(time, 'CLOCK_MONOTONIC'),
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'need time.CLOCK_MONOTONIC')
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def test_clock_monotonic(self):
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a = time.clock_gettime(time.CLOCK_MONOTONIC)
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b = time.clock_gettime(time.CLOCK_MONOTONIC)
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self.assertLessEqual(a, b)
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@unittest.skipUnless(hasattr(time, 'pthread_getcpuclockid'),
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'need time.pthread_getcpuclockid()')
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@unittest.skipUnless(hasattr(time, 'clock_gettime'),
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'need time.clock_gettime()')
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def test_pthread_getcpuclockid(self):
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clk_id = time.pthread_getcpuclockid(threading.get_ident())
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self.assertTrue(type(clk_id) is int)
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self.assertNotEqual(clk_id, time.CLOCK_THREAD_CPUTIME_ID)
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t1 = time.clock_gettime(clk_id)
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t2 = time.clock_gettime(clk_id)
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self.assertLessEqual(t1, t2)
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@unittest.skipUnless(hasattr(time, 'clock_getres'),
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'need time.clock_getres()')
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def test_clock_getres(self):
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res = time.clock_getres(time.CLOCK_REALTIME)
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self.assertGreater(res, 0.0)
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self.assertLessEqual(res, 1.0)
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@unittest.skipUnless(hasattr(time, 'clock_settime'),
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'need time.clock_settime()')
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def test_clock_settime(self):
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t = time.clock_gettime(time.CLOCK_REALTIME)
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try:
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time.clock_settime(time.CLOCK_REALTIME, t)
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except PermissionError:
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pass
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if hasattr(time, 'CLOCK_MONOTONIC'):
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self.assertRaises(OSError,
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time.clock_settime, time.CLOCK_MONOTONIC, 0)
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def test_conversions(self):
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self.assertEqual(time.ctime(self.t),
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time.asctime(time.localtime(self.t)))
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self.assertEqual(int(time.mktime(time.localtime(self.t))),
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int(self.t))
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def test_sleep(self):
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self.assertRaises(ValueError, time.sleep, -2)
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self.assertRaises(ValueError, time.sleep, -1)
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time.sleep(1.2)
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def test_strftime(self):
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tt = time.gmtime(self.t)
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for directive in ('a', 'A', 'b', 'B', 'c', 'd', 'H', 'I',
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'j', 'm', 'M', 'p', 'S',
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'U', 'w', 'W', 'x', 'X', 'y', 'Y', 'Z', '%'):
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format = ' %' + directive
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try:
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time.strftime(format, tt)
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except ValueError:
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self.fail('conversion specifier: %r failed.' % format)
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self.assertRaises(TypeError, time.strftime, b'%S', tt)
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# embedded null character
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self.assertRaises(ValueError, time.strftime, '%S\0', tt)
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def _bounds_checking(self, func):
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# Make sure that strftime() checks the bounds of the various parts
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# of the time tuple (0 is valid for *all* values).
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# The year field is tested by other test cases above
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# Check month [1, 12] + zero support
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func((1900, 0, 1, 0, 0, 0, 0, 1, -1))
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func((1900, 12, 1, 0, 0, 0, 0, 1, -1))
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self.assertRaises(ValueError, func,
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(1900, -1, 1, 0, 0, 0, 0, 1, -1))
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self.assertRaises(ValueError, func,
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(1900, 13, 1, 0, 0, 0, 0, 1, -1))
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# Check day of month [1, 31] + zero support
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func((1900, 1, 0, 0, 0, 0, 0, 1, -1))
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func((1900, 1, 31, 0, 0, 0, 0, 1, -1))
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self.assertRaises(ValueError, func,
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(1900, 1, -1, 0, 0, 0, 0, 1, -1))
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self.assertRaises(ValueError, func,
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(1900, 1, 32, 0, 0, 0, 0, 1, -1))
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# Check hour [0, 23]
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func((1900, 1, 1, 23, 0, 0, 0, 1, -1))
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self.assertRaises(ValueError, func,
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(1900, 1, 1, -1, 0, 0, 0, 1, -1))
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self.assertRaises(ValueError, func,
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(1900, 1, 1, 24, 0, 0, 0, 1, -1))
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# Check minute [0, 59]
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func((1900, 1, 1, 0, 59, 0, 0, 1, -1))
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self.assertRaises(ValueError, func,
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(1900, 1, 1, 0, -1, 0, 0, 1, -1))
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self.assertRaises(ValueError, func,
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(1900, 1, 1, 0, 60, 0, 0, 1, -1))
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# Check second [0, 61]
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self.assertRaises(ValueError, func,
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(1900, 1, 1, 0, 0, -1, 0, 1, -1))
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# C99 only requires allowing for one leap second, but Python's docs say
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# allow two leap seconds (0..61)
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func((1900, 1, 1, 0, 0, 60, 0, 1, -1))
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func((1900, 1, 1, 0, 0, 61, 0, 1, -1))
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self.assertRaises(ValueError, func,
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(1900, 1, 1, 0, 0, 62, 0, 1, -1))
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# No check for upper-bound day of week;
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# value forced into range by a ``% 7`` calculation.
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# Start check at -2 since gettmarg() increments value before taking
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# modulo.
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self.assertEqual(func((1900, 1, 1, 0, 0, 0, -1, 1, -1)),
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func((1900, 1, 1, 0, 0, 0, +6, 1, -1)))
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self.assertRaises(ValueError, func,
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(1900, 1, 1, 0, 0, 0, -2, 1, -1))
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# Check day of the year [1, 366] + zero support
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func((1900, 1, 1, 0, 0, 0, 0, 0, -1))
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func((1900, 1, 1, 0, 0, 0, 0, 366, -1))
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self.assertRaises(ValueError, func,
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(1900, 1, 1, 0, 0, 0, 0, -1, -1))
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self.assertRaises(ValueError, func,
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(1900, 1, 1, 0, 0, 0, 0, 367, -1))
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def test_strftime_bounding_check(self):
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self._bounds_checking(lambda tup: time.strftime('', tup))
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def test_strftime_format_check(self):
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# Test that strftime does not crash on invalid format strings
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# that may trigger a buffer overread. When not triggered,
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# strftime may succeed or raise ValueError depending on
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# the platform.
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for x in [ '', 'A', '%A', '%AA' ]:
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for y in range(0x0, 0x10):
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for z in [ '%', 'A%', 'AA%', '%A%', 'A%A%', '%#' ]:
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try:
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time.strftime(x * y + z)
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except ValueError:
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pass
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def test_default_values_for_zero(self):
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# Make sure that using all zeros uses the proper default
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# values. No test for daylight savings since strftime() does
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# not change output based on its value and no test for year
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# because systems vary in their support for year 0.
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expected = "2000 01 01 00 00 00 1 001"
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with support.check_warnings():
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result = time.strftime("%Y %m %d %H %M %S %w %j", (2000,)+(0,)*8)
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self.assertEqual(expected, result)
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def test_strptime(self):
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# Should be able to go round-trip from strftime to strptime without
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# raising an exception.
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tt = time.gmtime(self.t)
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for directive in ('a', 'A', 'b', 'B', 'c', 'd', 'H', 'I',
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'j', 'm', 'M', 'p', 'S',
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'U', 'w', 'W', 'x', 'X', 'y', 'Y', 'Z', '%'):
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format = '%' + directive
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strf_output = time.strftime(format, tt)
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try:
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time.strptime(strf_output, format)
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except ValueError:
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self.fail("conversion specifier %r failed with '%s' input." %
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(format, strf_output))
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def test_strptime_bytes(self):
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# Make sure only strings are accepted as arguments to strptime.
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self.assertRaises(TypeError, time.strptime, b'2009', "%Y")
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self.assertRaises(TypeError, time.strptime, '2009', b'%Y')
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def test_strptime_exception_context(self):
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# check that this doesn't chain exceptions needlessly (see #17572)
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with self.assertRaises(ValueError) as e:
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time.strptime('', '%D')
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self.assertIs(e.exception.__suppress_context__, True)
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# additional check for IndexError branch (issue #19545)
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with self.assertRaises(ValueError) as e:
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time.strptime('19', '%Y %')
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self.assertIs(e.exception.__suppress_context__, True)
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def test_asctime(self):
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time.asctime(time.gmtime(self.t))
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# Max year is only limited by the size of C int.
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for bigyear in TIME_MAXYEAR, TIME_MINYEAR:
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asc = time.asctime((bigyear, 6, 1) + (0,) * 6)
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self.assertEqual(asc[-len(str(bigyear)):], str(bigyear))
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self.assertRaises(OverflowError, time.asctime,
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(TIME_MAXYEAR + 1,) + (0,) * 8)
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self.assertRaises(OverflowError, time.asctime,
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(TIME_MINYEAR - 1,) + (0,) * 8)
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self.assertRaises(TypeError, time.asctime, 0)
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self.assertRaises(TypeError, time.asctime, ())
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self.assertRaises(TypeError, time.asctime, (0,) * 10)
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def test_asctime_bounding_check(self):
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self._bounds_checking(time.asctime)
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def test_ctime(self):
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t = time.mktime((1973, 9, 16, 1, 3, 52, 0, 0, -1))
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self.assertEqual(time.ctime(t), 'Sun Sep 16 01:03:52 1973')
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t = time.mktime((2000, 1, 1, 0, 0, 0, 0, 0, -1))
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self.assertEqual(time.ctime(t), 'Sat Jan 1 00:00:00 2000')
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for year in [-100, 100, 1000, 2000, 2050, 10000]:
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try:
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testval = time.mktime((year, 1, 10) + (0,)*6)
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except (ValueError, OverflowError):
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# If mktime fails, ctime will fail too. This may happen
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# on some platforms.
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pass
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else:
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self.assertEqual(time.ctime(testval)[20:], str(year))
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@unittest.skipUnless(hasattr(time, "tzset"),
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"time module has no attribute tzset")
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def test_tzset(self):
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from os import environ
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# Epoch time of midnight Dec 25th 2002. Never DST in northern
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# hemisphere.
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xmas2002 = 1040774400.0
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# These formats are correct for 2002, and possibly future years
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# This format is the 'standard' as documented at:
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# http://www.opengroup.org/onlinepubs/007904975/basedefs/xbd_chap08.html
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# They are also documented in the tzset(3) man page on most Unix
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# systems.
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eastern = 'EST+05EDT,M4.1.0,M10.5.0'
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victoria = 'AEST-10AEDT-11,M10.5.0,M3.5.0'
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utc='UTC+0'
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org_TZ = environ.get('TZ',None)
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try:
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# Make sure we can switch to UTC time and results are correct
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# Note that unknown timezones default to UTC.
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# Note that altzone is undefined in UTC, as there is no DST
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environ['TZ'] = eastern
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time.tzset()
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environ['TZ'] = utc
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time.tzset()
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self.assertEqual(
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time.gmtime(xmas2002), time.localtime(xmas2002)
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)
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self.assertEqual(time.daylight, 0)
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self.assertEqual(time.timezone, 0)
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self.assertEqual(time.localtime(xmas2002).tm_isdst, 0)
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# Make sure we can switch to US/Eastern
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environ['TZ'] = eastern
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time.tzset()
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self.assertNotEqual(time.gmtime(xmas2002), time.localtime(xmas2002))
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self.assertEqual(time.tzname, ('EST', 'EDT'))
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self.assertEqual(len(time.tzname), 2)
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self.assertEqual(time.daylight, 1)
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self.assertEqual(time.timezone, 18000)
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self.assertEqual(time.altzone, 14400)
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self.assertEqual(time.localtime(xmas2002).tm_isdst, 0)
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self.assertEqual(len(time.tzname), 2)
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# Now go to the southern hemisphere.
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environ['TZ'] = victoria
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time.tzset()
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self.assertNotEqual(time.gmtime(xmas2002), time.localtime(xmas2002))
|
|
|
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# Issue #11886: Australian Eastern Standard Time (UTC+10) is called
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# "EST" (as Eastern Standard Time, UTC-5) instead of "AEST"
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# (non-DST timezone), and "EDT" instead of "AEDT" (DST timezone),
|
|
# on some operating systems (e.g. FreeBSD), which is wrong. See for
|
|
# example this bug:
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|
# http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=93810
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self.assertIn(time.tzname[0], ('AEST' 'EST'), time.tzname[0])
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self.assertTrue(time.tzname[1] in ('AEDT', 'EDT'), str(time.tzname[1]))
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self.assertEqual(len(time.tzname), 2)
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self.assertEqual(time.daylight, 1)
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self.assertEqual(time.timezone, -36000)
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self.assertEqual(time.altzone, -39600)
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self.assertEqual(time.localtime(xmas2002).tm_isdst, 1)
|
|
|
|
finally:
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# Repair TZ environment variable in case any other tests
|
|
# rely on it.
|
|
if org_TZ is not None:
|
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environ['TZ'] = org_TZ
|
|
elif 'TZ' in environ:
|
|
del environ['TZ']
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|
time.tzset()
|
|
|
|
def test_insane_timestamps(self):
|
|
# It's possible that some platform maps time_t to double,
|
|
# and that this test will fail there. This test should
|
|
# exempt such platforms (provided they return reasonable
|
|
# results!).
|
|
for func in time.ctime, time.gmtime, time.localtime:
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for unreasonable in -1e200, 1e200:
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self.assertRaises(OverflowError, func, unreasonable)
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|
|
|
def test_ctime_without_arg(self):
|
|
# Not sure how to check the values, since the clock could tick
|
|
# at any time. Make sure these are at least accepted and
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# don't raise errors.
|
|
time.ctime()
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time.ctime(None)
|
|
|
|
def test_gmtime_without_arg(self):
|
|
gt0 = time.gmtime()
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gt1 = time.gmtime(None)
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t0 = time.mktime(gt0)
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t1 = time.mktime(gt1)
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self.assertAlmostEqual(t1, t0, delta=0.2)
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|
|
|
def test_localtime_without_arg(self):
|
|
lt0 = time.localtime()
|
|
lt1 = time.localtime(None)
|
|
t0 = time.mktime(lt0)
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t1 = time.mktime(lt1)
|
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self.assertAlmostEqual(t1, t0, delta=0.2)
|
|
|
|
def test_mktime(self):
|
|
# Issue #1726687
|
|
for t in (-2, -1, 0, 1):
|
|
if sys.platform.startswith('aix') and t == -1:
|
|
# Issue #11188, #19748: mktime() returns -1 on error. On Linux,
|
|
# the tm_wday field is used as a sentinel () to detect if -1 is
|
|
# really an error or a valid timestamp. On AIX, tm_wday is
|
|
# unchanged even on success and so cannot be used as a
|
|
# sentinel.
|
|
continue
|
|
try:
|
|
tt = time.localtime(t)
|
|
except (OverflowError, OSError):
|
|
pass
|
|
else:
|
|
self.assertEqual(time.mktime(tt), t)
|
|
|
|
# Issue #13309: passing extreme values to mktime() or localtime()
|
|
# borks the glibc's internal timezone data.
|
|
@unittest.skipUnless(platform.libc_ver()[0] != 'glibc',
|
|
"disabled because of a bug in glibc. Issue #13309")
|
|
def test_mktime_error(self):
|
|
# It may not be possible to reliably make mktime return error
|
|
# on all platfom. This will make sure that no other exception
|
|
# than OverflowError is raised for an extreme value.
|
|
tt = time.gmtime(self.t)
|
|
tzname = time.strftime('%Z', tt)
|
|
self.assertNotEqual(tzname, 'LMT')
|
|
try:
|
|
time.mktime((-1, 1, 1, 0, 0, 0, -1, -1, -1))
|
|
except OverflowError:
|
|
pass
|
|
self.assertEqual(time.strftime('%Z', tt), tzname)
|
|
|
|
def test_monotonic(self):
|
|
# monotonic() should not go backward
|
|
times = [time.monotonic() for n in range(100)]
|
|
t1 = times[0]
|
|
for t2 in times[1:]:
|
|
self.assertGreaterEqual(t2, t1, "times=%s" % times)
|
|
t1 = t2
|
|
|
|
# monotonic() includes time elapsed during a sleep
|
|
t1 = time.monotonic()
|
|
time.sleep(0.5)
|
|
t2 = time.monotonic()
|
|
dt = t2 - t1
|
|
self.assertGreater(t2, t1)
|
|
# Issue #20101: On some Windows machines, dt may be slightly low
|
|
self.assertTrue(0.45 <= dt <= 1.0, dt)
|
|
|
|
# monotonic() is a monotonic but non adjustable clock
|
|
info = time.get_clock_info('monotonic')
|
|
self.assertTrue(info.monotonic)
|
|
self.assertFalse(info.adjustable)
|
|
|
|
def test_perf_counter(self):
|
|
time.perf_counter()
|
|
|
|
def test_process_time(self):
|
|
# process_time() should not include time spend during a sleep
|
|
start = time.process_time()
|
|
time.sleep(0.100)
|
|
stop = time.process_time()
|
|
# use 20 ms because process_time() has usually a resolution of 15 ms
|
|
# on Windows
|
|
self.assertLess(stop - start, 0.020)
|
|
|
|
# process_time() should include CPU time spent in any thread
|
|
start = time.process_time()
|
|
busy_wait(0.100)
|
|
stop = time.process_time()
|
|
self.assertGreaterEqual(stop - start, 0.020) # machine busy?
|
|
|
|
t = threading.Thread(target=busy_wait, args=(0.100,))
|
|
start = time.process_time()
|
|
t.start()
|
|
t.join()
|
|
stop = time.process_time()
|
|
self.assertGreaterEqual(stop - start, 0.020) # machine busy?
|
|
|
|
info = time.get_clock_info('process_time')
|
|
self.assertTrue(info.monotonic)
|
|
self.assertFalse(info.adjustable)
|
|
|
|
def test_thread_time(self):
|
|
if not hasattr(time, 'thread_time'):
|
|
if sys.platform.startswith(('linux', 'win')):
|
|
self.fail("time.thread_time() should be available on %r"
|
|
% (sys.platform,))
|
|
else:
|
|
self.skipTest("need time.thread_time")
|
|
|
|
# thread_time() should not include time spend during a sleep
|
|
start = time.thread_time()
|
|
time.sleep(0.100)
|
|
stop = time.thread_time()
|
|
# use 20 ms because thread_time() has usually a resolution of 15 ms
|
|
# on Windows
|
|
self.assertLess(stop - start, 0.020)
|
|
|
|
# thread_time() should include CPU time spent in current thread...
|
|
start = time.thread_time()
|
|
busy_wait(0.100)
|
|
stop = time.thread_time()
|
|
self.assertGreaterEqual(stop - start, 0.020) # machine busy?
|
|
|
|
# ...but not in other threads
|
|
t = threading.Thread(target=busy_wait, args=(0.100,))
|
|
start = time.thread_time()
|
|
t.start()
|
|
t.join()
|
|
stop = time.thread_time()
|
|
self.assertLess(stop - start, 0.020)
|
|
|
|
info = time.get_clock_info('thread_time')
|
|
self.assertTrue(info.monotonic)
|
|
self.assertFalse(info.adjustable)
|
|
|
|
@unittest.skipUnless(hasattr(time, 'clock_settime'),
|
|
'need time.clock_settime')
|
|
def test_monotonic_settime(self):
|
|
t1 = time.monotonic()
|
|
realtime = time.clock_gettime(time.CLOCK_REALTIME)
|
|
# jump backward with an offset of 1 hour
|
|
try:
|
|
time.clock_settime(time.CLOCK_REALTIME, realtime - 3600)
|
|
except PermissionError as err:
|
|
self.skipTest(err)
|
|
t2 = time.monotonic()
|
|
time.clock_settime(time.CLOCK_REALTIME, realtime)
|
|
# monotonic must not be affected by system clock updates
|
|
self.assertGreaterEqual(t2, t1)
|
|
|
|
def test_localtime_failure(self):
|
|
# Issue #13847: check for localtime() failure
|
|
invalid_time_t = None
|
|
for time_t in (-1, 2**30, 2**33, 2**60):
|
|
try:
|
|
time.localtime(time_t)
|
|
except OverflowError:
|
|
self.skipTest("need 64-bit time_t")
|
|
except OSError:
|
|
invalid_time_t = time_t
|
|
break
|
|
if invalid_time_t is None:
|
|
self.skipTest("unable to find an invalid time_t value")
|
|
|
|
self.assertRaises(OSError, time.localtime, invalid_time_t)
|
|
self.assertRaises(OSError, time.ctime, invalid_time_t)
|
|
|
|
# Issue #26669: check for localtime() failure
|
|
self.assertRaises(ValueError, time.localtime, float("nan"))
|
|
self.assertRaises(ValueError, time.ctime, float("nan"))
|
|
|
|
def test_get_clock_info(self):
|
|
clocks = ['clock', 'monotonic', 'perf_counter', 'process_time', 'time']
|
|
|
|
for name in clocks:
|
|
if name == 'clock':
|
|
with self.assertWarns(DeprecationWarning):
|
|
info = time.get_clock_info('clock')
|
|
else:
|
|
info = time.get_clock_info(name)
|
|
|
|
#self.assertIsInstance(info, dict)
|
|
self.assertIsInstance(info.implementation, str)
|
|
self.assertNotEqual(info.implementation, '')
|
|
self.assertIsInstance(info.monotonic, bool)
|
|
self.assertIsInstance(info.resolution, float)
|
|
# 0.0 < resolution <= 1.0
|
|
self.assertGreater(info.resolution, 0.0)
|
|
self.assertLessEqual(info.resolution, 1.0)
|
|
self.assertIsInstance(info.adjustable, bool)
|
|
|
|
self.assertRaises(ValueError, time.get_clock_info, 'xxx')
|
|
|
|
|
|
class TestLocale(unittest.TestCase):
|
|
def setUp(self):
|
|
self.oldloc = locale.setlocale(locale.LC_ALL)
|
|
|
|
def tearDown(self):
|
|
locale.setlocale(locale.LC_ALL, self.oldloc)
|
|
|
|
def test_bug_3061(self):
|
|
try:
|
|
tmp = locale.setlocale(locale.LC_ALL, "fr_FR")
|
|
except locale.Error:
|
|
self.skipTest('could not set locale.LC_ALL to fr_FR')
|
|
# This should not cause an exception
|
|
time.strftime("%B", (2009,2,1,0,0,0,0,0,0))
|
|
|
|
|
|
class _TestAsctimeYear:
|
|
_format = '%d'
|
|
|
|
def yearstr(self, y):
|
|
return time.asctime((y,) + (0,) * 8).split()[-1]
|
|
|
|
def test_large_year(self):
|
|
# Check that it doesn't crash for year > 9999
|
|
self.assertEqual(self.yearstr(12345), '12345')
|
|
self.assertEqual(self.yearstr(123456789), '123456789')
|
|
|
|
class _TestStrftimeYear:
|
|
|
|
# Issue 13305: For years < 1000, the value is not always
|
|
# padded to 4 digits across platforms. The C standard
|
|
# assumes year >= 1900, so it does not specify the number
|
|
# of digits.
|
|
|
|
if time.strftime('%Y', (1,) + (0,) * 8) == '0001':
|
|
_format = '%04d'
|
|
else:
|
|
_format = '%d'
|
|
|
|
def yearstr(self, y):
|
|
return time.strftime('%Y', (y,) + (0,) * 8)
|
|
|
|
def test_4dyear(self):
|
|
# Check that we can return the zero padded value.
|
|
if self._format == '%04d':
|
|
self.test_year('%04d')
|
|
else:
|
|
def year4d(y):
|
|
return time.strftime('%4Y', (y,) + (0,) * 8)
|
|
self.test_year('%04d', func=year4d)
|
|
|
|
def skip_if_not_supported(y):
|
|
msg = "strftime() is limited to [1; 9999] with Visual Studio"
|
|
# Check that it doesn't crash for year > 9999
|
|
try:
|
|
time.strftime('%Y', (y,) + (0,) * 8)
|
|
except ValueError:
|
|
cond = False
|
|
else:
|
|
cond = True
|
|
return unittest.skipUnless(cond, msg)
|
|
|
|
@skip_if_not_supported(10000)
|
|
def test_large_year(self):
|
|
return super().test_large_year()
|
|
|
|
@skip_if_not_supported(0)
|
|
def test_negative(self):
|
|
return super().test_negative()
|
|
|
|
del skip_if_not_supported
|
|
|
|
|
|
class _Test4dYear:
|
|
_format = '%d'
|
|
|
|
def test_year(self, fmt=None, func=None):
|
|
fmt = fmt or self._format
|
|
func = func or self.yearstr
|
|
self.assertEqual(func(1), fmt % 1)
|
|
self.assertEqual(func(68), fmt % 68)
|
|
self.assertEqual(func(69), fmt % 69)
|
|
self.assertEqual(func(99), fmt % 99)
|
|
self.assertEqual(func(999), fmt % 999)
|
|
self.assertEqual(func(9999), fmt % 9999)
|
|
|
|
def test_large_year(self):
|
|
self.assertEqual(self.yearstr(12345), '12345')
|
|
self.assertEqual(self.yearstr(123456789), '123456789')
|
|
self.assertEqual(self.yearstr(TIME_MAXYEAR), str(TIME_MAXYEAR))
|
|
self.assertRaises(OverflowError, self.yearstr, TIME_MAXYEAR + 1)
|
|
|
|
def test_negative(self):
|
|
self.assertEqual(self.yearstr(-1), self._format % -1)
|
|
self.assertEqual(self.yearstr(-1234), '-1234')
|
|
self.assertEqual(self.yearstr(-123456), '-123456')
|
|
self.assertEqual(self.yearstr(-123456789), str(-123456789))
|
|
self.assertEqual(self.yearstr(-1234567890), str(-1234567890))
|
|
self.assertEqual(self.yearstr(TIME_MINYEAR + 1900), str(TIME_MINYEAR + 1900))
|
|
# Issue #13312: it may return wrong value for year < TIME_MINYEAR + 1900
|
|
# Skip the value test, but check that no error is raised
|
|
self.yearstr(TIME_MINYEAR)
|
|
# self.assertEqual(self.yearstr(TIME_MINYEAR), str(TIME_MINYEAR))
|
|
self.assertRaises(OverflowError, self.yearstr, TIME_MINYEAR - 1)
|
|
|
|
|
|
class TestAsctime4dyear(_TestAsctimeYear, _Test4dYear, unittest.TestCase):
|
|
pass
|
|
|
|
class TestStrftime4dyear(_TestStrftimeYear, _Test4dYear, unittest.TestCase):
|
|
pass
|
|
|
|
|
|
class TestPytime(unittest.TestCase):
|
|
@unittest.skipUnless(time._STRUCT_TM_ITEMS == 11, "needs tm_zone support")
|
|
def test_localtime_timezone(self):
|
|
|
|
# Get the localtime and examine it for the offset and zone.
|
|
lt = time.localtime()
|
|
self.assertTrue(hasattr(lt, "tm_gmtoff"))
|
|
self.assertTrue(hasattr(lt, "tm_zone"))
|
|
|
|
# See if the offset and zone are similar to the module
|
|
# attributes.
|
|
if lt.tm_gmtoff is None:
|
|
self.assertTrue(not hasattr(time, "timezone"))
|
|
else:
|
|
self.assertEqual(lt.tm_gmtoff, -[time.timezone, time.altzone][lt.tm_isdst])
|
|
if lt.tm_zone is None:
|
|
self.assertTrue(not hasattr(time, "tzname"))
|
|
else:
|
|
self.assertEqual(lt.tm_zone, time.tzname[lt.tm_isdst])
|
|
|
|
# Try and make UNIX times from the localtime and a 9-tuple
|
|
# created from the localtime. Test to see that the times are
|
|
# the same.
|
|
t = time.mktime(lt); t9 = time.mktime(lt[:9])
|
|
self.assertEqual(t, t9)
|
|
|
|
# Make localtimes from the UNIX times and compare them to
|
|
# the original localtime, thus making a round trip.
|
|
new_lt = time.localtime(t); new_lt9 = time.localtime(t9)
|
|
self.assertEqual(new_lt, lt)
|
|
self.assertEqual(new_lt.tm_gmtoff, lt.tm_gmtoff)
|
|
self.assertEqual(new_lt.tm_zone, lt.tm_zone)
|
|
self.assertEqual(new_lt9, lt)
|
|
self.assertEqual(new_lt.tm_gmtoff, lt.tm_gmtoff)
|
|
self.assertEqual(new_lt9.tm_zone, lt.tm_zone)
|
|
|
|
@unittest.skipUnless(time._STRUCT_TM_ITEMS == 11, "needs tm_zone support")
|
|
def test_strptime_timezone(self):
|
|
t = time.strptime("UTC", "%Z")
|
|
self.assertEqual(t.tm_zone, 'UTC')
|
|
t = time.strptime("+0500", "%z")
|
|
self.assertEqual(t.tm_gmtoff, 5 * 3600)
|
|
|
|
@unittest.skipUnless(time._STRUCT_TM_ITEMS == 11, "needs tm_zone support")
|
|
def test_short_times(self):
|
|
|
|
import pickle
|
|
|
|
# Load a short time structure using pickle.
|
|
st = b"ctime\nstruct_time\np0\n((I2007\nI8\nI11\nI1\nI24\nI49\nI5\nI223\nI1\ntp1\n(dp2\ntp3\nRp4\n."
|
|
lt = pickle.loads(st)
|
|
self.assertIs(lt.tm_gmtoff, None)
|
|
self.assertIs(lt.tm_zone, None)
|
|
|
|
|
|
@unittest.skipIf(_testcapi is None, 'need the _testcapi module')
|
|
class CPyTimeTestCase:
|
|
"""
|
|
Base class to test the C _PyTime_t API.
|
|
"""
|
|
OVERFLOW_SECONDS = None
|
|
|
|
def setUp(self):
|
|
from _testcapi import SIZEOF_TIME_T
|
|
bits = SIZEOF_TIME_T * 8 - 1
|
|
self.time_t_min = -2 ** bits
|
|
self.time_t_max = 2 ** bits - 1
|
|
|
|
def time_t_filter(self, seconds):
|
|
return (self.time_t_min <= seconds <= self.time_t_max)
|
|
|
|
def _rounding_values(self, use_float):
|
|
"Build timestamps used to test rounding."
|
|
|
|
units = [1, US_TO_NS, MS_TO_NS, SEC_TO_NS]
|
|
if use_float:
|
|
# picoseconds are only tested to pytime_converter accepting floats
|
|
units.append(1e-3)
|
|
|
|
values = (
|
|
# small values
|
|
1, 2, 5, 7, 123, 456, 1234,
|
|
# 10^k - 1
|
|
9,
|
|
99,
|
|
999,
|
|
9999,
|
|
99999,
|
|
999999,
|
|
# test half even rounding near 0.5, 1.5, 2.5, 3.5, 4.5
|
|
499, 500, 501,
|
|
1499, 1500, 1501,
|
|
2500,
|
|
3500,
|
|
4500,
|
|
)
|
|
|
|
ns_timestamps = [0]
|
|
for unit in units:
|
|
for value in values:
|
|
ns = value * unit
|
|
ns_timestamps.extend((-ns, ns))
|
|
for pow2 in (0, 5, 10, 15, 22, 23, 24, 30, 33):
|
|
ns = (2 ** pow2) * SEC_TO_NS
|
|
ns_timestamps.extend((
|
|
-ns-1, -ns, -ns+1,
|
|
ns-1, ns, ns+1
|
|
))
|
|
for seconds in (_testcapi.INT_MIN, _testcapi.INT_MAX):
|
|
ns_timestamps.append(seconds * SEC_TO_NS)
|
|
if use_float:
|
|
# numbers with an exact representation in IEEE 754 (base 2)
|
|
for pow2 in (3, 7, 10, 15):
|
|
ns = 2.0 ** (-pow2)
|
|
ns_timestamps.extend((-ns, ns))
|
|
|
|
# seconds close to _PyTime_t type limit
|
|
ns = (2 ** 63 // SEC_TO_NS) * SEC_TO_NS
|
|
ns_timestamps.extend((-ns, ns))
|
|
|
|
return ns_timestamps
|
|
|
|
def _check_rounding(self, pytime_converter, expected_func,
|
|
use_float, unit_to_sec, value_filter=None):
|
|
|
|
def convert_values(ns_timestamps):
|
|
if use_float:
|
|
unit_to_ns = SEC_TO_NS / float(unit_to_sec)
|
|
values = [ns / unit_to_ns for ns in ns_timestamps]
|
|
else:
|
|
unit_to_ns = SEC_TO_NS // unit_to_sec
|
|
values = [ns // unit_to_ns for ns in ns_timestamps]
|
|
|
|
if value_filter:
|
|
values = filter(value_filter, values)
|
|
|
|
# remove duplicates and sort
|
|
return sorted(set(values))
|
|
|
|
# test rounding
|
|
ns_timestamps = self._rounding_values(use_float)
|
|
valid_values = convert_values(ns_timestamps)
|
|
for time_rnd, decimal_rnd in ROUNDING_MODES :
|
|
context = decimal.getcontext()
|
|
context.rounding = decimal_rnd
|
|
|
|
for value in valid_values:
|
|
debug_info = {'value': value, 'rounding': decimal_rnd}
|
|
try:
|
|
result = pytime_converter(value, time_rnd)
|
|
expected = expected_func(value)
|
|
except Exception as exc:
|
|
self.fail("Error on timestamp conversion: %s" % debug_info)
|
|
self.assertEqual(result,
|
|
expected,
|
|
debug_info)
|
|
|
|
# test overflow
|
|
ns = self.OVERFLOW_SECONDS * SEC_TO_NS
|
|
ns_timestamps = (-ns, ns)
|
|
overflow_values = convert_values(ns_timestamps)
|
|
for time_rnd, _ in ROUNDING_MODES :
|
|
for value in overflow_values:
|
|
debug_info = {'value': value, 'rounding': time_rnd}
|
|
with self.assertRaises(OverflowError, msg=debug_info):
|
|
pytime_converter(value, time_rnd)
|
|
|
|
def check_int_rounding(self, pytime_converter, expected_func,
|
|
unit_to_sec=1, value_filter=None):
|
|
self._check_rounding(pytime_converter, expected_func,
|
|
False, unit_to_sec, value_filter)
|
|
|
|
def check_float_rounding(self, pytime_converter, expected_func,
|
|
unit_to_sec=1, value_filter=None):
|
|
self._check_rounding(pytime_converter, expected_func,
|
|
True, unit_to_sec, value_filter)
|
|
|
|
def decimal_round(self, x):
|
|
d = decimal.Decimal(x)
|
|
d = d.quantize(1)
|
|
return int(d)
|
|
|
|
|
|
class TestCPyTime(CPyTimeTestCase, unittest.TestCase):
|
|
"""
|
|
Test the C _PyTime_t API.
|
|
"""
|
|
# _PyTime_t is a 64-bit signed integer
|
|
OVERFLOW_SECONDS = math.ceil((2**63 + 1) / SEC_TO_NS)
|
|
|
|
def test_FromSeconds(self):
|
|
from _testcapi import PyTime_FromSeconds
|
|
|
|
# PyTime_FromSeconds() expects a C int, reject values out of range
|
|
def c_int_filter(secs):
|
|
return (_testcapi.INT_MIN <= secs <= _testcapi.INT_MAX)
|
|
|
|
self.check_int_rounding(lambda secs, rnd: PyTime_FromSeconds(secs),
|
|
lambda secs: secs * SEC_TO_NS,
|
|
value_filter=c_int_filter)
|
|
|
|
# test nan
|
|
for time_rnd, _ in ROUNDING_MODES:
|
|
with self.assertRaises(TypeError):
|
|
PyTime_FromSeconds(float('nan'))
|
|
|
|
def test_FromSecondsObject(self):
|
|
from _testcapi import PyTime_FromSecondsObject
|
|
|
|
self.check_int_rounding(
|
|
PyTime_FromSecondsObject,
|
|
lambda secs: secs * SEC_TO_NS)
|
|
|
|
self.check_float_rounding(
|
|
PyTime_FromSecondsObject,
|
|
lambda ns: self.decimal_round(ns * SEC_TO_NS))
|
|
|
|
# test nan
|
|
for time_rnd, _ in ROUNDING_MODES:
|
|
with self.assertRaises(ValueError):
|
|
PyTime_FromSecondsObject(float('nan'), time_rnd)
|
|
|
|
def test_AsSecondsDouble(self):
|
|
from _testcapi import PyTime_AsSecondsDouble
|
|
|
|
def float_converter(ns):
|
|
if abs(ns) % SEC_TO_NS == 0:
|
|
return float(ns // SEC_TO_NS)
|
|
else:
|
|
return float(ns) / SEC_TO_NS
|
|
|
|
self.check_int_rounding(lambda ns, rnd: PyTime_AsSecondsDouble(ns),
|
|
float_converter,
|
|
NS_TO_SEC)
|
|
|
|
# test nan
|
|
for time_rnd, _ in ROUNDING_MODES:
|
|
with self.assertRaises(TypeError):
|
|
PyTime_AsSecondsDouble(float('nan'))
|
|
|
|
def create_decimal_converter(self, denominator):
|
|
denom = decimal.Decimal(denominator)
|
|
|
|
def converter(value):
|
|
d = decimal.Decimal(value) / denom
|
|
return self.decimal_round(d)
|
|
|
|
return converter
|
|
|
|
def test_AsTimeval(self):
|
|
from _testcapi import PyTime_AsTimeval
|
|
|
|
us_converter = self.create_decimal_converter(US_TO_NS)
|
|
|
|
def timeval_converter(ns):
|
|
us = us_converter(ns)
|
|
return divmod(us, SEC_TO_US)
|
|
|
|
if sys.platform == 'win32':
|
|
from _testcapi import LONG_MIN, LONG_MAX
|
|
|
|
# On Windows, timeval.tv_sec type is a C long
|
|
def seconds_filter(secs):
|
|
return LONG_MIN <= secs <= LONG_MAX
|
|
else:
|
|
seconds_filter = self.time_t_filter
|
|
|
|
self.check_int_rounding(PyTime_AsTimeval,
|
|
timeval_converter,
|
|
NS_TO_SEC,
|
|
value_filter=seconds_filter)
|
|
|
|
@unittest.skipUnless(hasattr(_testcapi, 'PyTime_AsTimespec'),
|
|
'need _testcapi.PyTime_AsTimespec')
|
|
def test_AsTimespec(self):
|
|
from _testcapi import PyTime_AsTimespec
|
|
|
|
def timespec_converter(ns):
|
|
return divmod(ns, SEC_TO_NS)
|
|
|
|
self.check_int_rounding(lambda ns, rnd: PyTime_AsTimespec(ns),
|
|
timespec_converter,
|
|
NS_TO_SEC,
|
|
value_filter=self.time_t_filter)
|
|
|
|
def test_AsMilliseconds(self):
|
|
from _testcapi import PyTime_AsMilliseconds
|
|
|
|
self.check_int_rounding(PyTime_AsMilliseconds,
|
|
self.create_decimal_converter(MS_TO_NS),
|
|
NS_TO_SEC)
|
|
|
|
def test_AsMicroseconds(self):
|
|
from _testcapi import PyTime_AsMicroseconds
|
|
|
|
self.check_int_rounding(PyTime_AsMicroseconds,
|
|
self.create_decimal_converter(US_TO_NS),
|
|
NS_TO_SEC)
|
|
|
|
|
|
class TestOldPyTime(CPyTimeTestCase, unittest.TestCase):
|
|
"""
|
|
Test the old C _PyTime_t API: _PyTime_ObjectToXXX() functions.
|
|
"""
|
|
|
|
# time_t is a 32-bit or 64-bit signed integer
|
|
OVERFLOW_SECONDS = 2 ** 64
|
|
|
|
def test_object_to_time_t(self):
|
|
from _testcapi import pytime_object_to_time_t
|
|
|
|
self.check_int_rounding(pytime_object_to_time_t,
|
|
lambda secs: secs,
|
|
value_filter=self.time_t_filter)
|
|
|
|
self.check_float_rounding(pytime_object_to_time_t,
|
|
self.decimal_round,
|
|
value_filter=self.time_t_filter)
|
|
|
|
def create_converter(self, sec_to_unit):
|
|
def converter(secs):
|
|
floatpart, intpart = math.modf(secs)
|
|
intpart = int(intpart)
|
|
floatpart *= sec_to_unit
|
|
floatpart = self.decimal_round(floatpart)
|
|
if floatpart < 0:
|
|
floatpart += sec_to_unit
|
|
intpart -= 1
|
|
elif floatpart >= sec_to_unit:
|
|
floatpart -= sec_to_unit
|
|
intpart += 1
|
|
return (intpart, floatpart)
|
|
return converter
|
|
|
|
def test_object_to_timeval(self):
|
|
from _testcapi import pytime_object_to_timeval
|
|
|
|
self.check_int_rounding(pytime_object_to_timeval,
|
|
lambda secs: (secs, 0),
|
|
value_filter=self.time_t_filter)
|
|
|
|
self.check_float_rounding(pytime_object_to_timeval,
|
|
self.create_converter(SEC_TO_US),
|
|
value_filter=self.time_t_filter)
|
|
|
|
# test nan
|
|
for time_rnd, _ in ROUNDING_MODES:
|
|
with self.assertRaises(ValueError):
|
|
pytime_object_to_timeval(float('nan'), time_rnd)
|
|
|
|
def test_object_to_timespec(self):
|
|
from _testcapi import pytime_object_to_timespec
|
|
|
|
self.check_int_rounding(pytime_object_to_timespec,
|
|
lambda secs: (secs, 0),
|
|
value_filter=self.time_t_filter)
|
|
|
|
self.check_float_rounding(pytime_object_to_timespec,
|
|
self.create_converter(SEC_TO_NS),
|
|
value_filter=self.time_t_filter)
|
|
|
|
# test nan
|
|
for time_rnd, _ in ROUNDING_MODES:
|
|
with self.assertRaises(ValueError):
|
|
pytime_object_to_timespec(float('nan'), time_rnd)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|