from test import support import time import unittest import locale import sysconfig import sys import warnings 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.assertEqual(time.ctime(self.t), time.asctime(time.localtime(self.t))) self.assertEqual(int(time.mktime(time.localtime(self.t))), int(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 _bounds_checking(self, func=time.strftime): # Make sure that strftime() checks the bounds of the various parts #of the time tuple (0 is valid for *all* values). # The year field is tested by other test cases above # Check month [1, 12] + zero support self.assertRaises(ValueError, func, (1900, -1, 1, 0, 0, 0, 0, 1, -1)) self.assertRaises(ValueError, func, (1900, 13, 1, 0, 0, 0, 0, 1, -1)) # Check day of month [1, 31] + zero support self.assertRaises(ValueError, func, (1900, 1, -1, 0, 0, 0, 0, 1, -1)) self.assertRaises(ValueError, func, (1900, 1, 32, 0, 0, 0, 0, 1, -1)) # Check hour [0, 23] self.assertRaises(ValueError, func, (1900, 1, 1, -1, 0, 0, 0, 1, -1)) self.assertRaises(ValueError, func, (1900, 1, 1, 24, 0, 0, 0, 1, -1)) # Check minute [0, 59] self.assertRaises(ValueError, func, (1900, 1, 1, 0, -1, 0, 0, 1, -1)) self.assertRaises(ValueError, func, (1900, 1, 1, 0, 60, 0, 0, 1, -1)) # Check second [0, 61] self.assertRaises(ValueError, func, (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, func, (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, func, (1900, 1, 1, 0, 0, 0, -2, 1, -1)) # Check day of the year [1, 366] + zero support self.assertRaises(ValueError, func, (1900, 1, 1, 0, 0, 0, 0, -1, -1)) self.assertRaises(ValueError, func, (1900, 1, 1, 0, 0, 0, 0, 367, -1)) def test_strftime_bounding_check(self): self._bounds_checking(lambda tup: time.strftime('', tup)) 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" with support.check_warnings(): 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_strptime_bytes(self): # Make sure only strings are accepted as arguments to strptime. self.assertRaises(TypeError, time.strptime, b'2009', "%Y") self.assertRaises(TypeError, time.strptime, '2009', b'%Y') def test_asctime(self): time.asctime(time.gmtime(self.t)) # Max year is only limited by the size of C int. sizeof_int = sysconfig.get_config_var('SIZEOF_INT') or 4 bigyear = (1 << 8 * sizeof_int - 1) - 1 asc = time.asctime((bigyear, 6, 1) + (0,)*6) self.assertEqual(asc[-len(str(bigyear)):], str(bigyear)) self.assertRaises(OverflowError, time.asctime, (bigyear + 1,) + (0,)*8) self.assertRaises(TypeError, time.asctime, 0) self.assertRaises(TypeError, time.asctime, ()) self.assertRaises(TypeError, time.asctime, (0,) * 10) def test_asctime_bounding_check(self): self._bounds_checking(time.asctime) def test_ctime(self): t = time.mktime((1973, 9, 16, 1, 3, 52, 0, 0, -1)) self.assertEqual(time.ctime(t), 'Sun Sep 16 01:03:52 1973') t = time.mktime((2000, 1, 1, 0, 0, 0, 0, 0, -1)) self.assertEqual(time.ctime(t), 'Sat Jan 1 00:00:00 2000') for year in [-100, 100, 1000, 2000, 10000]: try: testval = time.mktime((year, 1, 10) + (0,)*6) except (ValueError, OverflowError): # If mktime fails, ctime will fail too. This may happen # on some platforms. pass else: self.assertEqual(time.ctime(testval)[20:], str(year)) @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 'TZ' in environ: 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.assertAlmostEqual(t1, t0, delta=0.2) def test_localtime_without_arg(self): lt0 = time.localtime() lt1 = time.localtime(None) t0 = time.mktime(lt0) t1 = time.mktime(lt1) self.assertAlmostEqual(t1, t0, delta=0.2) class TestLocale(unittest.TestCase): def setUp(self): self.oldloc = locale.setlocale(locale.LC_ALL) def tearDown(self): locale.setlocale(locale.LC_ALL, self.oldloc) def test_bug_3061(self): try: tmp = locale.setlocale(locale.LC_ALL, "fr_FR") except locale.Error: # skip this test return # This should not cause an exception time.strftime("%B", (2009,2,1,0,0,0,0,0,0)) class _BaseYearTest(unittest.TestCase): accept2dyear = None def setUp(self): self.saved_accept2dyear = time.accept2dyear time.accept2dyear = self.accept2dyear def tearDown(self): time.accept2dyear = self.saved_accept2dyear def yearstr(self, y): raise NotImplementedError() class _TestAsctimeYear: def yearstr(self, y): return time.asctime((y,) + (0,) * 8).split()[-1] def test_large_year(self): # Check that it doesn't crash for year > 9999 self.assertEqual(self.yearstr(12345), '12345') self.assertEqual(self.yearstr(123456789), '123456789') class _TestStrftimeYear: def yearstr(self, y): return time.strftime('%Y', (y,) + (0,) * 8).split()[-1] def test_large_year(self): # Check that it doesn't crash for year > 9999 try: text = self.yearstr(12345) except ValueError: # strftime() is limited to [1; 9999] with Visual Studio return self.assertEqual(text, '12345') self.assertEqual(self.yearstr(123456789), '123456789') class _Test2dYear(_BaseYearTest): accept2dyear = 1 def test_year(self): with support.check_warnings(): self.assertEqual(self.yearstr(0), '2000') self.assertEqual(self.yearstr(69), '1969') self.assertEqual(self.yearstr(68), '2068') self.assertEqual(self.yearstr(99), '1999') def test_invalid(self): self.assertRaises(ValueError, self.yearstr, -1) self.assertRaises(ValueError, self.yearstr, 100) self.assertRaises(ValueError, self.yearstr, 999) class _Test4dYear(_BaseYearTest): accept2dyear = 0 def test_year(self): self.assertIn(self.yearstr(1), ('1', '0001')) self.assertIn(self.yearstr(68), ('68', '0068')) self.assertIn(self.yearstr(69), ('69', '0069')) self.assertIn(self.yearstr(99), ('99', '0099')) self.assertIn(self.yearstr(999), ('999', '0999')) self.assertEqual(self.yearstr(9999), '9999') def test_negative(self): try: text = self.yearstr(-1) except ValueError: # strftime() is limited to [1; 9999] with Visual Studio return self.assertIn(text, ('-1', '-001')) self.assertEqual(self.yearstr(-1234), '-1234') self.assertEqual(self.yearstr(-123456), '-123456') 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) # It may not be possible to reliably make mktime return error # on all platfom. This will make sure that no other exception # than OverflowError is raised for an extreme value. try: time.mktime((-1, 1, 1, 0, 0, 0, -1, -1, -1)) except OverflowError: pass class TestAsctimeAccept2dYear(_TestAsctimeYear, _Test2dYear): pass class TestStrftimeAccept2dYear(_TestStrftimeYear, _Test2dYear): pass class TestAsctime4dyear(_TestAsctimeYear, _Test4dYear): pass class TestStrftime4dyear(_TestStrftimeYear, _Test4dYear): pass class Test2dyearBool(_TestAsctimeYear, _Test2dYear): accept2dyear = True class Test4dyearBool(_TestAsctimeYear, _Test4dYear): accept2dyear = False class TestAccept2YearBad(_TestAsctimeYear, _BaseYearTest): class X: def __bool__(self): raise RuntimeError('boo') accept2dyear = X() def test_2dyear(self): pass def test_invalid(self): self.assertRaises(RuntimeError, self.yearstr, 200) def test_main(): support.run_unittest( TimeTestCase, TestLocale, TestAsctimeAccept2dYear, TestStrftimeAccept2dYear, TestAsctime4dyear, TestStrftime4dyear, Test2dyearBool, Test4dyearBool, TestAccept2YearBad) if __name__ == "__main__": test_main()