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from test import support
import time
import unittest
import locale
import sysconfig
import warnings
class TimeTestCase(unittest.TestCase):
def setUp(self):
self.t = time.time()
def test_data_attributes(self):
time.altzone
time.daylight
time.timezone
time.tzname
def test_clock(self):
time.clock()
def test_conversions(self):
self.assertEqual(time.ctime(self.t),
time.asctime(time.localtime(self.t)))
self.assertEqual(int(time.mktime(time.localtime(self.t))),
int(self.t))
def test_sleep(self):
time.sleep(1.2)
def test_strftime(self):
tt = time.gmtime(self.t)
for directive in ('a', 'A', 'b', 'B', 'c', 'd', 'H', 'I',
'j', 'm', 'M', 'p', 'S',
'U', 'w', 'W', 'x', 'X', 'y', 'Y', 'Z', '%'):
format = ' %' + directive
try:
time.strftime(format, tt)
except ValueError:
self.fail('conversion specifier: %r failed.' % format)
def _bounds_checking(self, func=time.strftime):
# Make sure that strftime() checks the bounds of the various parts
#of the time tuple (0 is valid for *all* values).
# The year field is tested by other test cases above
# Check month [1, 12] + zero support
self.assertRaises(ValueError, func,
(1900, -1, 1, 0, 0, 0, 0, 1, -1))
self.assertRaises(ValueError, func,
(1900, 13, 1, 0, 0, 0, 0, 1, -1))
# Check day of month [1, 31] + zero support
self.assertRaises(ValueError, func,
(1900, 1, -1, 0, 0, 0, 0, 1, -1))
self.assertRaises(ValueError, func,
(1900, 1, 32, 0, 0, 0, 0, 1, -1))
# Check hour [0, 23]
self.assertRaises(ValueError, func,
(1900, 1, 1, -1, 0, 0, 0, 1, -1))
self.assertRaises(ValueError, func,
(1900, 1, 1, 24, 0, 0, 0, 1, -1))
# Check minute [0, 59]
self.assertRaises(ValueError, func,
(1900, 1, 1, 0, -1, 0, 0, 1, -1))
self.assertRaises(ValueError, func,
(1900, 1, 1, 0, 60, 0, 0, 1, -1))
# Check second [0, 61]
self.assertRaises(ValueError, func,
(1900, 1, 1, 0, 0, -1, 0, 1, -1))
# C99 only requires allowing for one leap second, but Python's docs say
# allow two leap seconds (0..61)
self.assertRaises(ValueError, func,
(1900, 1, 1, 0, 0, 62, 0, 1, -1))
# No check for upper-bound day of week;
# value forced into range by a ``% 7`` calculation.
# Start check at -2 since gettmarg() increments value before taking
# modulo.
self.assertRaises(ValueError, func,
(1900, 1, 1, 0, 0, 0, -2, 1, -1))
# Check day of the year [1, 366] + zero support
self.assertRaises(ValueError, func,
(1900, 1, 1, 0, 0, 0, 0, -1, -1))
self.assertRaises(ValueError, func,
(1900, 1, 1, 0, 0, 0, 0, 367, -1))
def test_strftime_bounding_check(self):
self._bounds_checking(lambda tup: time.strftime('', tup))
def test_default_values_for_zero(self):
# Make sure that using all zeros uses the proper default values.
# No test for daylight savings since strftime() does not change output
# based on its value.
expected = "2000 01 01 00 00 00 1 001"
with support.check_warnings():
result = time.strftime("%Y %m %d %H %M %S %w %j", (0,)*9)
self.assertEqual(expected, result)
def test_strptime(self):
# Should be able to go round-trip from strftime to strptime without
# throwing an exception.
tt = time.gmtime(self.t)
for directive in ('a', 'A', 'b', 'B', 'c', 'd', 'H', 'I',
'j', 'm', 'M', 'p', 'S',
'U', 'w', 'W', 'x', 'X', 'y', 'Y', 'Z', '%'):
format = '%' + directive
strf_output = time.strftime(format, tt)
try:
time.strptime(strf_output, format)
except ValueError:
self.fail("conversion specifier %r failed with '%s' input." %
(format, strf_output))
def test_strptime_bytes(self):
# Make sure only strings are accepted as arguments to strptime.
self.assertRaises(TypeError, time.strptime, b'2009', "%Y")
self.assertRaises(TypeError, time.strptime, '2009', b'%Y')
def test_asctime(self):
time.asctime(time.gmtime(self.t))
# Max year is only limited by the size of C int.
sizeof_int = sysconfig.get_config_var('SIZEOF_INT') or 4
bigyear = (1 << 8 * sizeof_int - 1) - 1
asc = time.asctime((bigyear, 6, 1) + (0,)*6)
self.assertEqual(asc[-len(str(bigyear)):], str(bigyear))
self.assertRaises(OverflowError, time.asctime, (bigyear + 1,) + (0,)*8)
self.assertRaises(TypeError, time.asctime, 0)
self.assertRaises(TypeError, time.asctime, ())
self.assertRaises(TypeError, time.asctime, (0,) * 10)
def test_asctime_bounding_check(self):
self._bounds_checking(time.asctime)
def test_ctime(self):
t = time.mktime((1973, 9, 16, 1, 3, 52, 0, 0, -1))
self.assertEqual(time.ctime(t), 'Sun Sep 16 01:03:52 1973')
t = time.mktime((2000, 1, 1, 0, 0, 0, 0, 0, -1))
self.assertEqual(time.ctime(t), 'Sat Jan 1 00:00:00 2000')
for year in [-100, 100, 1000, 2000, 10000]:
try:
testval = time.mktime((year, 1, 10) + (0,)*6)
except (ValueError, OverflowError):
# If mktime fails, ctime will fail too. This may happen
# on some platforms.
pass
else:
self.assertEqual(time.ctime(testval)[20:], str(year))
@unittest.skipIf(not hasattr(time, "tzset"),
"time module has no attribute tzset")
def test_tzset(self):
from os import environ
# Epoch time of midnight Dec 25th 2002. Never DST in northern
# hemisphere.
xmas2002 = 1040774400.0
# These formats are correct for 2002, and possibly future years
# This format is the 'standard' as documented at:
# http://www.opengroup.org/onlinepubs/007904975/basedefs/xbd_chap08.html
# They are also documented in the tzset(3) man page on most Unix
# systems.
eastern = 'EST+05EDT,M4.1.0,M10.5.0'
victoria = 'AEST-10AEDT-11,M10.5.0,M3.5.0'
utc='UTC+0'
org_TZ = environ.get('TZ',None)
try:
# Make sure we can switch to UTC time and results are correct
# Note that unknown timezones default to UTC.
# Note that altzone is undefined in UTC, as there is no DST
environ['TZ'] = eastern
time.tzset()
environ['TZ'] = utc
time.tzset()
self.assertEqual(
time.gmtime(xmas2002), time.localtime(xmas2002)
)
self.assertEqual(time.daylight, 0)
self.assertEqual(time.timezone, 0)
self.assertEqual(time.localtime(xmas2002).tm_isdst, 0)
# Make sure we can switch to US/Eastern
environ['TZ'] = eastern
time.tzset()
self.assertNotEqual(time.gmtime(xmas2002), time.localtime(xmas2002))
self.assertEqual(time.tzname, ('EST', 'EDT'))
self.assertEqual(len(time.tzname), 2)
self.assertEqual(time.daylight, 1)
self.assertEqual(time.timezone, 18000)
self.assertEqual(time.altzone, 14400)
self.assertEqual(time.localtime(xmas2002).tm_isdst, 0)
self.assertEqual(len(time.tzname), 2)
# Now go to the southern hemisphere.
environ['TZ'] = victoria
time.tzset()
self.assertNotEqual(time.gmtime(xmas2002), time.localtime(xmas2002))
self.assertTrue(time.tzname[0] == 'AEST', str(time.tzname[0]))
self.assertTrue(time.tzname[1] == 'AEDT', str(time.tzname[1]))
self.assertEqual(len(time.tzname), 2)
self.assertEqual(time.daylight, 1)
self.assertEqual(time.timezone, -36000)
self.assertEqual(time.altzone, -39600)
self.assertEqual(time.localtime(xmas2002).tm_isdst, 1)
finally:
# Repair TZ environment variable in case any other tests
# rely on it.
if org_TZ is not None:
environ['TZ'] = org_TZ
elif 'TZ' in environ:
del environ['TZ']
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:
for unreasonable in -1e200, 1e200:
self.assertRaises(ValueError, func, unreasonable)
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
# don't raise errors.
time.ctime()
time.ctime(None)
def test_gmtime_without_arg(self):
gt0 = time.gmtime()
gt1 = time.gmtime(None)
t0 = time.mktime(gt0)
t1 = time.mktime(gt1)
self.assertAlmostEqual(t1, t0, delta=0.2)
def test_localtime_without_arg(self):
lt0 = time.localtime()
lt1 = time.localtime(None)
t0 = time.mktime(lt0)
t1 = time.mktime(lt1)
self.assertAlmostEqual(t1, t0, delta=0.2)
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:
# skip this test
return
# This should not cause an exception
time.strftime("%B", (2009,2,1,0,0,0,0,0,0))
class _BaseYearTest(unittest.TestCase):
accept2dyear = None
def setUp(self):
self.saved_accept2dyear = time.accept2dyear
time.accept2dyear = self.accept2dyear
def tearDown(self):
time.accept2dyear = self.saved_accept2dyear
def yearstr(self, y):
raise NotImplementedError()
class _TestAsctimeYear:
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:
def yearstr(self, y):
return time.strftime('%Y', (y,) + (0,) * 8).split()[-1]
def test_large_year(self):
# Check that it doesn't crash for year > 9999
try:
text = self.yearstr(12345)
except ValueError:
# strftime() is limited to [1; 9999] with Visual Studio
return
# Issue #10864: OpenIndiana is limited to 4 digits,
# but Python doesn't raise a ValueError
#self.assertEqual(text, '12345')
#self.assertEqual(self.yearstr(123456789), '123456789')
self.assertIn(text, ('2345', '12345'))
self.assertIn(self.yearstr(123456789), ('123456789', '6789'))
class _Test2dYear(_BaseYearTest):
accept2dyear = 1
def test_year(self):
with support.check_warnings():
self.assertEqual(self.yearstr(0), '2000')
self.assertEqual(self.yearstr(69), '1969')
self.assertEqual(self.yearstr(68), '2068')
self.assertEqual(self.yearstr(99), '1999')
def test_invalid(self):
self.assertRaises(ValueError, self.yearstr, -1)
self.assertRaises(ValueError, self.yearstr, 100)
self.assertRaises(ValueError, self.yearstr, 999)
class _Test4dYear(_BaseYearTest):
accept2dyear = 0
def test_year(self):
self.assertIn(self.yearstr(1), ('1', '0001'))
self.assertIn(self.yearstr(68), ('68', '0068'))
self.assertIn(self.yearstr(69), ('69', '0069'))
self.assertIn(self.yearstr(99), ('99', '0099'))
self.assertIn(self.yearstr(999), ('999', '0999'))
self.assertEqual(self.yearstr(9999), '9999')
def test_negative(self):
try:
text = self.yearstr(-1)
except ValueError:
# strftime() is limited to [1; 9999] with Visual Studio
return
self.assertIn(text, ('-1', '-001'))
self.assertEqual(self.yearstr(-1234), '-1234')
self.assertEqual(self.yearstr(-123456), '-123456')
def test_mktime(self):
# Issue #1726687
for t in (-2, -1, 0, 1):
try:
tt = time.localtime(t)
except (OverflowError, ValueError):
pass
else:
self.assertEqual(time.mktime(tt), t)
# 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.
try:
time.mktime((-1, 1, 1, 0, 0, 0, -1, -1, -1))
except OverflowError:
pass
class TestAsctimeAccept2dYear(_TestAsctimeYear, _Test2dYear):
pass
class TestStrftimeAccept2dYear(_TestStrftimeYear, _Test2dYear):
pass
class TestAsctime4dyear(_TestAsctimeYear, _Test4dYear):
pass
class TestStrftime4dyear(_TestStrftimeYear, _Test4dYear):
pass
class Test2dyearBool(_TestAsctimeYear, _Test2dYear):
accept2dyear = True
class Test4dyearBool(_TestAsctimeYear, _Test4dYear):
accept2dyear = False
class TestAccept2YearBad(_TestAsctimeYear, _BaseYearTest):
class X:
def __bool__(self):
raise RuntimeError('boo')
accept2dyear = X()
def test_2dyear(self):
pass
def test_invalid(self):
self.assertRaises(RuntimeError, self.yearstr, 200)
def test_main():
support.run_unittest(
TimeTestCase,
TestLocale,
TestAsctimeAccept2dYear,
TestStrftimeAccept2dYear,
TestAsctime4dyear,
TestStrftime4dyear,
Test2dyearBool,
Test4dyearBool,
TestAccept2YearBad)
if __name__ == "__main__":
test_main()
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