| 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 (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)) |
| # Check daylight savings flag [-1, 1] |
| 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_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.assertEquals(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) |
| |
| 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): |
| gt0 = time.gmtime() |
| gt1 = time.gmtime(None) |
| t0 = time.mktime(gt0) |
| t1 = time.mktime(gt1) |
| self.assert_(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.assert_(0 <= (t1-t0) < 0.2) |
| |
| def test_main(): |
| test_support.run_unittest(TimeTestCase) |
| |
| |
| if __name__ == "__main__": |
| test_main() |
