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from test import test_support
import time
import unittest
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.assert_(time.ctime(self.t)
== time.asctime(time.localtime(self.t)))
self.assert_(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)
def test_strptime(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.strptime(time.strftime(format, tt), format)
except ValueError:
self.fail('conversion specifier: %r failed.' % format)
def test_asctime(self):
time.asctime(time.gmtime(self.t))
self.assertRaises(TypeError, time.asctime, 0)
def test_tzset(self):
if not hasattr(time, "tzset"):
return # Can't test this; don't want the test suite to fail
from os import environ
# Epoch time of midnight Dec 25th 2002. Never DST in northern
# hemisphere.
xmas2002 = 1040774400.0
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.
for tz in ('UTC','GMT','Luna/Tycho'):
environ['TZ'] = 'US/Eastern'
time.tzset()
environ['TZ'] = tz
time.tzset()
self.failUnlessEqual(
time.gmtime(xmas2002),time.localtime(xmas2002)
)
self.failUnlessEqual(time.timezone,time.altzone)
self.failUnlessEqual(time.daylight,0)
self.failUnlessEqual(time.timezone,0)
self.failUnlessEqual(time.altzone,0)
self.failUnlessEqual(time.localtime(xmas2002).tm_isdst,0)
# Make sure we can switch to US/Eastern
environ['TZ'] = 'US/Eastern'
time.tzset()
self.failIfEqual(time.gmtime(xmas2002),time.localtime(xmas2002))
self.failUnlessEqual(time.tzname,('EST','EDT'))
self.failUnlessEqual(len(time.tzname),2)
self.failUnlessEqual(time.daylight,1)
self.failUnlessEqual(time.timezone,18000)
self.failUnlessEqual(time.altzone,14400)
self.failUnlessEqual(time.localtime(xmas2002).tm_isdst,0)
self.failUnlessEqual(len(time.tzname),2)
# Now go to the southern hemisphere. We want somewhere all OS's
# know about that has DST.
environ['TZ'] = 'Australia/Melbourne'
time.tzset()
self.failIfEqual(time.gmtime(xmas2002),time.localtime(xmas2002))
self.failUnless(time.tzname[0] in ('EST','AEST'))
self.failUnless(time.tzname[1] in ('EST','EDT','AEDT'))
self.failUnlessEqual(len(time.tzname),2)
self.failUnlessEqual(time.daylight,1)
self.failUnlessEqual(time.timezone,-36000)
self.failUnlessEqual(time.altzone,-39600)
self.failUnlessEqual(time.localtime(xmas2002).tm_isdst,1)
# Get some times from a timezone that isn't wallclock timezone
del environ['TZ']
time.tzset()
if time.timezone == 0:
environ['TZ'] = 'US/Eastern'
else:
environ['TZ'] = 'UTC'
time.tzset()
nonlocal = time.localtime(xmas2002)
# Then the same time in wallclock timezone
del environ['TZ']
time.tzset()
local = time.localtime(xmas2002)
# And make sure they arn't the same
self.failIfEqual(local,nonlocal)
# Do some basic sanity checking after wallclock time set
self.failUnlessEqual(len(time.tzname),2)
time.daylight
time.timezone
time.altzone
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']
def test_main():
test_support.run_unittest(TimeTestCase)
if __name__ == "__main__":
test_main()
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