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//usr/lib/python2.4/test/test_time.py
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_strftime_bounds_checking(self): # Make sure that strftime() checks the bounds of the various parts #of the time tuple. # Check year 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 self.assertRaises(ValueError, time.strftime, '', (1900, 0, 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 self.assertRaises(ValueError, time.strftime, '', (1900, 1, 0, 0, 0, 0, 0, 1, -1)) self.assertRaises(ValueError, time.strftime, '', (1900, 1, 32, 0, 0, 0, 0, 1, -1)) # Check hour 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 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 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 self.assertRaises(ValueError, time.strftime, '', (1900, 1, 1, 0, 0, 0, 0, 0, -1)) self.assertRaises(ValueError, time.strftime, '', (1900, 1, 1, 0, 0, 0, 0, 367, -1)) # Check daylight savings flag self.assertRaises(ValueError, time.strftime, '', (1900, 1, 1, 0, 0, 0, 0, 1, -2)) self.assertRaises(ValueError, time.strftime, '', (1900, 1, 1, 0, 0, 0, 0, 1, 2)) 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 # 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.failUnlessEqual( time.gmtime(xmas2002), time.localtime(xmas2002) ) self.failUnlessEqual(time.daylight, 0) self.failUnlessEqual(time.timezone, 0) self.failUnlessEqual(time.localtime(xmas2002).tm_isdst, 0) # Make sure we can switch to US/Eastern environ['TZ'] = 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. environ['TZ'] = victoria time.tzset() self.failIfEqual(time.gmtime(xmas2002), time.localtime(xmas2002)) self.failUnless(time.tzname[0] == 'AEST', str(time.tzname[0])) self.failUnless(time.tzname[1] == 'AEDT', str(time.tzname[1])) 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) 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): t0 = time.mktime(time.gmtime()) t1 = time.mktime(time.gmtime(None)) self.assert_(0 <= (t1-t0) < 0.2) def test_localtime_without_arg(self): t0 = time.mktime(time.localtime()) t1 = time.mktime(time.localtime(None)) self.assert_(0 <= (t1-t0) < 0.2) def test_main(): test_support.run_unittest(TimeTestCase) if __name__ == "__main__": test_main()