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- New function time.tzset() provides access to the C library tzet()

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function, if supported.  (SF patch #675422, by Stuart Bishop.)
This commit is contained in:
Guido van Rossum 2003-03-14 21:51:36 +00:00
parent 538f1d842c
commit d11b62edd0
7 changed files with 338 additions and 78 deletions
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83
Lib/test/test_time.py
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@ -48,11 +48,92 @@ class TimeTestCase(unittest.TestCase):
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):
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)