from test import test_support | |
import time | |
import unittest | |
import sys | |
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.assertTrue(time.ctime(self.t) | |
== time.asctime(time.localtime(self.t))) | |
self.assertTrue(long(time.mktime(time.localtime(self.t))) | |
== long(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) | |
# Issue #10762: Guard against invalid/non-supported format string | |
# so that Python don't crash (Windows crashes when the format string | |
# input to [w]strftime is not kosher. | |
if sys.platform.startswith('win'): | |
with self.assertRaises(ValueError): | |
time.strftime('%f') | |
def test_strftime_bounds_checking(self): | |
# Make sure that strftime() checks the bounds of the various parts | |
#of the time tuple (0 is valid for *all* values). | |
# Check year [1900, max(int)] | |
self.assertRaises(ValueError, time.strftime, '', | |
(1899, 1, 1, 0, 0, 0, 0, 1, -1)) | |
if time.accept2dyear: | |
self.assertRaises(ValueError, time.strftime, '', | |
(-1, 1, 1, 0, 0, 0, 0, 1, -1)) | |
self.assertRaises(ValueError, time.strftime, '', | |
(100, 1, 1, 0, 0, 0, 0, 1, -1)) | |
# Check month [1, 12] + zero support | |
self.assertRaises(ValueError, time.strftime, '', | |
(1900, -1, 1, 0, 0, 0, 0, 1, -1)) | |
self.assertRaises(ValueError, time.strftime, '', | |
(1900, 13, 1, 0, 0, 0, 0, 1, -1)) | |
# Check day of month [1, 31] + zero support | |
self.assertRaises(ValueError, time.strftime, '', | |
(1900, 1, -1, 0, 0, 0, 0, 1, -1)) | |
self.assertRaises(ValueError, time.strftime, '', | |
(1900, 1, 32, 0, 0, 0, 0, 1, -1)) | |
# Check hour [0, 23] | |
self.assertRaises(ValueError, time.strftime, '', | |
(1900, 1, 1, -1, 0, 0, 0, 1, -1)) | |
self.assertRaises(ValueError, time.strftime, '', | |
(1900, 1, 1, 24, 0, 0, 0, 1, -1)) | |
# Check minute [0, 59] | |
self.assertRaises(ValueError, time.strftime, '', | |
(1900, 1, 1, 0, -1, 0, 0, 1, -1)) | |
self.assertRaises(ValueError, time.strftime, '', | |
(1900, 1, 1, 0, 60, 0, 0, 1, -1)) | |
# Check second [0, 61] | |
self.assertRaises(ValueError, time.strftime, '', | |
(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, time.strftime, '', | |
(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, time.strftime, '', | |
(1900, 1, 1, 0, 0, 0, -2, 1, -1)) | |
# Check day of the year [1, 366] + zero support | |
self.assertRaises(ValueError, time.strftime, '', | |
(1900, 1, 1, 0, 0, 0, 0, -1, -1)) | |
self.assertRaises(ValueError, time.strftime, '', | |
(1900, 1, 1, 0, 0, 0, 0, 367, -1)) | |
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" | |
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_asctime(self): | |
time.asctime(time.gmtime(self.t)) | |
self.assertRaises(TypeError, time.asctime, 0) | |
self.assertRaises(TypeError, time.asctime, ()) | |
# XXX: Posix compiant asctime should refuse to convert | |
# year > 9999, but Linux implementation does not. | |
# self.assertRaises(ValueError, time.asctime, | |
# (12345, 1, 0, 0, 0, 0, 0, 0, 0)) | |
# XXX: For now, just make sure we don't have a crash: | |
try: | |
time.asctime((12345, 1, 1, 0, 0, 0, 0, 1, 0)) | |
except ValueError: | |
pass | |
@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 environ.has_key('TZ'): | |
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.assertTrue(0 <= (t1-t0) < 0.2) | |
def test_localtime_without_arg(self): | |
lt0 = time.localtime() | |
lt1 = time.localtime(None) | |
t0 = time.mktime(lt0) | |
t1 = time.mktime(lt1) | |
self.assertTrue(0 <= (t1-t0) < 0.2) | |
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) | |
def test_main(): | |
test_support.run_unittest(TimeTestCase) | |
if __name__ == "__main__": | |
test_main() |